Bruce's Sharpening

Blank page
Custom Grooming Scissors
Information about Clipper Blades
Sale items, clipper blades & blade parts, oil, grease
Professional Grooming Scissors
Testimonials - fellow groomers comments
Clipper Repair
Surgical & Dental Instruments
Questions asked by many
Scissor and Shear questions and answers
Salon hair cutting shears / scissors
Price List
Nail Nippers, Shredders, Coat Rakes, Misc
Articles I've written
Contact Us
About Us

Many common questions are searched on each month. I have listed some of the most common ones I see and put an answer next to the question. Where there are similar questions I have bundled them together and you may have to read more to find your answer. For futher information contact me by email at Bruce

Best way to sharpen clipper blades? How to sharpen clipper blades? How to prepare and sharpen a clipper blade? What can I use other than a clipper sharpener to sharpen the clipper blades? Send them to your sharpener. Most clipper blades need special equipment to do them. Grooming blades are hollow ground and adjustable clipper blades are normally flat on the comb blade and hollow ground on the cutter. Hollow grinding can only be done on equipment designed to create a hollow in the blade.

Can Andis clippers use plastic combs? Mending clipper blades with broken teeth. Almost any clipper blade can be fitted with a comb, either in plastic or metal. Check with your dealer or on the internet stores such as Amazon. Broken teeth can’t be mended but if the blade is a #30 and above you can use an attachable comb to still use the blade.

Can you or should you oil ceramic blades? Do ceramic blades on clippers need oil?  Yes, both the blade guide groove and comb surface. The oil will reduce friction and keep buildup of skin flakes and junk.

Do ceramic blades on clippers wear out? Ceramic blades can both “wear” out and more often chip or break as they are very hard and brittle.

What happens if you don t oil your clippers? Your sharpener will yell at you and bad things will happen to your blade! Oil helps a clipper blade from getting hot from friction. Also the oil helps keep crud from sticking to the blade and causing sticking problems and keeps the blade from prematurely dulling. Not cleaning the hair out of a blade will cause it to soak up the oil and your blade could rust. So clean out the hair when done cutting and oil your blade for the next time. You should oil before, during and after in the 3 spots. Blade guide area, rear rail and front teeth area.

How many years do clipper blades last? When to replace Andis, Oster, Laube, Wahl, and other blades?  That of course depends on how often the blade is used, how well it is maintained, how clean the hair that is being cut is, the thickness of the sharpenable metal is but normally many years for many blades. I still get A2 blades to sharpen and they haven’t been sold for a long time but are still in use.

Can you sharpen a5 blades? How many times can you sharpen a #4 clipper blade? Any clipper blade can be sharpened except for some small trimmer blades. Andis, Oster A5, A2, adjustable Wahl and barber, Laube, Speedfeed, Arco, etc. But only by a professional sharpener. The # of times a blade can be sharpened depends on how much metal is removed each time and how thick the rails the blades sit on are. Most grooming blades can be sharpened many many times as well as full size barber blades.

Cleaning clipper blades. How often clipper blades should be cleaned? Dog clipper blades how often should they be cleaned? I have to wash my grooming blades and I don’t have blade wash? Always when you finish with a blade clean them. The blade should be cleaned and oiled after use. During use if the hair builds up between the teeth of the blade. Use a stiff bristle brush. This build up will prevent the blade from cutting if there is too much accumulation. Your clipper blades are your tools and your tools should be maintained to kept them in top working order and ready to be used again. If the blade is to be taken out of use because it needs to be re-sharpened that is no excuse for not cleaning and oiling. During storage leaving hair and dirt build up can cause the blade to rust. Very bad for the edges. During use oiling keeps friction low and helps prevents a buildup of varnish.

Do Oster Agion blades need to be cleaned? Yes, all blades should be cleaned. The silver ion surface is antimicrobial but that is more a selling point than a never need cleaning fact. Any build up past the blade surface won’t be sterile. Only maybe microbes in contact with the metal surface will be killed.

Clipper blade set back? How to adjust cutters on Andis ultra edge a5 clipper blades? Set back refers to the distance a cutter is place back on the comb blade. The bottoms of the groves between the cutter teeth should be just past the groves on the comb teeth toward the rear of the comb blade. Just a tiny amount. There’s a photo in the clipper blade section on this web site showing cutter blade set back. To adjust, loosen the two screws on the blade. Move the cutter to the proper set back position then retighten the two screws.

Clipper blade tension? What is “tension” in clippers? Clipper blade tension refers to the amount of pressure the metal spring applies to the top of the cutter grove. If it is too low hair can get between the blades and stop cutting. Too much tension and the clipper have to work too hard and heat will build up in the blade. The correct tension is in-between. You should be able to move the cutter with a little effort.

Clipper blades quit cutting? Oster blades jamming.  Oster (Andis, Wahl, Laube, Top Performance, Value Groom, Conair ) clipper blades won’t cut. Pet clipper was professionally sharpened and it will not cut why? Reasons a blade would stop cutting? Why are my Andis clipper still rattling after I changed the blade drive They might be dull. They might have too little tension. The blade may have been poorly sharpened – even if new sometimes. The clipper drive may need replacing. The blade might not be firmly attached to the clipper and the drive won’t engage. The hinge might be bad or the latch broken.

Clipper blades won’t move. Blade not fully tight against clipper body. Can you manually move the cutter?  Blades rusted together, did you oil them? Clipper drive broken. If Oster A5, 76, gear stripped? If Andis, blade drive broken? On Wahl KM1, KM2 gear stripped? Tension too high on spring on blade. Clipper motor may be too weak to drive blade. Is the clipper running normally?

Clippers sharp but not cutting? How to tell if clipper blades are bad? When will i know my dog clipper blades need sharpening? Why do hair clippers go blunt after one groom?  Likely clippers are not sharp enough or improperly ground leaving a gap between the cutter and comb that hair gets in between. Test with a known good cutting blade or new blade. Are they cutting?  If Oster clipper are the bearings in alignment and clipper running cool? Weak armature on Oster, Andis can cause low power. Brushes going bad – more often on Oster. Andis wears brushes very slowly. Blade drive too worn.

Do Oster (Laube, Wahl, Butter Cut, Top Performance, etc) blades fit Andis? Yes, grooming blades are pretty universal and fit all brands that accept removable A5 type blades. Barber and Salon clipper blades not so much - each model and brand usually has their own style of blade.

Do teeth on a horse clipper blade determine the size? No.  Most clipper blades go by how much hair thickness is left on the body, not the number of teeth on the blade.

Friction in hair clipper blades. When ever you have two metal surfaces rubbing against each other you have friction. The cutter blade rubs against the comb blade. The blade spring applies the pressure to keep the two blades tight together. If the spring is applying too much tension (pressure) the friction increases and heat buildup results.

Horse clipper oil substitute? Any kind of oil is better than no oil. Even a kerosene can be used but you will have to apply it much more frequently than a motor oil.

How do you know when the blades on dog clippers need replacing? How often should you replace Oster, Andis, Laube, Wahl, etc. clipper blades? When your sharpener tells you so. Usually when you see the raised rails that the cutter blade sits on being ground down to the base metal it’s time to replace. Or unless someone has done a do-it-yourself sharpening job or a Handi hone on the blade. Most blades can be sharpened repeatedly for 20 or more times.

How long do hair clippers stay sharp? How long does an Andis, Oster, Laube, Wahl, etc. blade last? How many dogs cuts before blade sharpening? How often do you sharpen animal clipper blades? How often should clipper blades be sharpened? What cutters are better than steel?  If you don’t use them, forever. If you hit dirt in the hair, maybe only seconds, if you clean and oil the blade and wash the hair before grooming then quite a while if a proper sharpening has been done. So the range is from seconds to months depending on the above factors. Both titanium coated steel and ceramic are harder longer lasting cutters.

How many teeth in clipper A5 blades? Common blade sizes pretty much have the same # of teeth until you get to the very fine teeth sizes. In A5 type blades sizes #2 to #30 have the same # of teeth (19) in the cutters except for some Laube cutters which have more (22). #40, #50 blades have 25 teeth. 10 Wide cutters have 22 teeth. Comb blades #40 and 50 have 43 teeth including the larger end teeth. #10-#30 combs have 28 teeth, #2 to #7F combs have 19 teeth. 10 Wide combs have 27 teeth. So, why did you want to know all that?

How often do sharpened blades need to be changed?  When they stop cutting or you need a different size for the cut you are doing. If properly maintained and now size change is needed then quite a while. If the blade gets too hot is also a reason to change to another blade and let the 1st one cool.

How to adjust tension spring on animal clipper blades? If there is too much tension (cutter very hard to move with your finger) then move the cutter far enough over that you can place a flat blade screwdriver under the center of the spring and lift up gently and test. Keep adjusting until the cutter moves with some effort but you don’t have to grunt to move it. For too little tension, the blade should be taken apart and the loop where the screws go through needs to be closed slightly. Both sides need to be done evenly. If the spring doesn’t sit flat across the front then you have to bend the spring until it does lie flat. Reassemble the blade and check again. Repeat as necessary. Your sharpener has special tools for this task and it’s best to let him adjust. If you have a postal scale slide the cutter past the comb and push the exposed cutter on the scale platform. You are looking for around 3 lbs.

How to align a clipper blade? If the cutter blade is crooked on the comb blade or if it’s not positioned properly then it’s just a simple matter of loosening the 2 screws on the back of the blade and repositioning the cutter or evening it out. Remember the cutter bottom of the teeth should just be behind the bottom of the comb teeth by 1/64” (a small amount).

How to clean old livestock clipper? Wasn’t sure if you mean the clipper blade or the clipper itself. For a livestock blade that’s really cruddy some recommend boiling water and some soap. Make sure you dry and oil afterwards. You may need a stiff brush, brass or fiber to remove really caked on crud. For the clipper most of the crud will be in the yoke and drive area. Clean as much as you can with a stick or screwdriver then brush clean. Oil the drive. On the other end there is usually a screen. Carefully remove the screen and spring – don’t loose the spring! Then brush the screen clean. If you have access to compressed air blow out the interior of the clipper as best you can. Or you can use a vacuum cleaner to try to clean the accumulated hair inside – more difficult but cleaning is good. The gear box may need grease if the clipper hasn’t been serviced in a while.

How to preparing new clipper blades? Oil them and use.

How to unscrew a tight screw on clipper, scissor, blade? First, if the screw slot isn’t damaged make sure you have a good quality screwdriver with a sharp edge (not rounded or it will slip). Apply some WD-40 or other similar product. Carefully align the screwdriver with the slot or if Phillips, slots. Apply as much pressure as you can while keeping the screw driver head as perpendicular to the screw as possible. Sometimes tapping the screwdriver with a hammer against the screw will help. If you feel the screwdriver start to slip in the slot stop and reposition. If the screw is a slotted head and the slot is damaged I use a Dremel grinder with a thin cutting wheel to make a new slot. If you don’t have such a grinder handy think about sending this out for service!

Removing rust from Andis, Oster, Wahl, Laube, Top Performance, Buttercut, Value Groom clipper blades. Surface rust can be easily removed by rubbing with an eraser, kitchen sponges with abrasive sides, WD-40 and wiping with a cloth and similar methods. Deeper rusting requires stronger methods such as power driven woven abrasive wheels and the like. Sometimes the red surface inside a clipper blade is thought to be rust but is actually the result of chemical reaction with Kool lube spray and skin particles which can form into a reddish varnish. This will only come off by grinding the surfaces as your sharpener does to sharpen your blades. Not a home do-it-yourself project. Kool lube should only be used on the back of the comb blade, not the front side or into the clipper.

Titanium, steel or ceramic better cutting? Neither if the blades are properly sharpened. Steel is softer so it will dull faster than titanium or ceramic. Ceramic is the hardest material so it will stay sharp about 3 times longer than steel but is only available for cutters, not combs. Titanium bonded steel blades will last 40% longer than plain steel.

Are titanium clippers better than ceramic ones?  Titanium blades are steel blades coated with a very hard coating of titanium metal. They are harder and longer lasting than regular steel but not as hard as ceramic cutters. Ceramic is the longest lasting material available but ceramic can break easily or chip. If your blades get dropped a lot than I wouldn’t recommend ceramic cutters. Ceramic cutters can be sharpened by diamond but if chipped too badly it is not worth trying. Titanium combs and cutters can be sharpened by your regular sharpener.

Wahl (Oster, Laube, Andis, etc) clippers blade loose. A clipper blade that’s “loose” may be caused by : A spread blade socket, a tilted blade socket, a broken blade latch on an Andis AGC, Oster A5, Laube or Wahl clipper, a loose hinge – screws coming loose that hold the hinge to the clipper body. Blade not fully mounted tight to clipper.

What does the a mean when it comes to Oster clippers. Over the years Oster named their blades A + a number. Currently the # is A5, before that it was A2. The clippers are named the same. Grooming blades for animals use the A5 for the professional grooming of animals. Barber blades of equivalent sizes to pet grooming blades use numbers and some a letter after the number such as 1a to 00000 (equivalent to a #50 blade in pet grooming).

What is a hollow ground in a clipper blade? Pet grooming blades are usually “hollow ground” This is a special grinding technique that forms a hollow from the tip of the teeth to the back of the rear ride rail. Some believe the hollow is across the teeth but in order to cut the teeth have to be very flat across the width of the blade. The hollow grinding allows the blade to cut but with less friction. The clipper blade spring gives roughly 3 lbs of pressure on the cutter keeping the blade tight enough to ensure cutting with minimal friction – heat.

What to do when dog clipper blades blacken? Older clipper blades were made of carbon steel. These can become black looking over time. Many modern blades are made of stainless steel which doesn’t rust or change color as easily. The color change won’t hurt the cutting. Certain chemicals used to clean blade may change the color if certain metals used to make the steel is selectively etched or removed by the chemicals used. Regular washes and cleaner made for cleaning clipper blades won’t do this. You can remove most of the black with woven abrasive pads or wheels.

When should i oil my dog clippers? Before, during and after. Oil the teeth area, the grove in the cutter and the rear rail area. This keeps the blade running at its coolest and fastest.

Why are my Arco clipper blade sticking? Why do Wahl clipper blades stop cutting?   I’m guessing this is not cutting or is jamming. Blade is dull or improperly sharpened. Many sharpeners cannot successfully sharpen the ARCO/Bravura Wahl 5 in 1 adjustable blades. Have the blade properly sharpened.

Dog grooming blade dulls quickly? Had my clipper blades sharpened now they won’t cut. How to confirm my Oster blades are not working? How to stop a clipper blade from dragging? I have cutting problems with #4 and #3 3/4 ceramic blades for dog grooming. How to know if your clipper blade is dull? My Oster clippers won’t clip. Why are my clipper blades not cutting? Oster clippers not cutting hair.  Since these questions are all kind of related I put them together. Blades that dull quickly can be because you cut dirty hair. Or if a blade is dragging or having cutting problems or dulling quickly it can be poor sharpening or too little blade tension. Too much blade tension can cause the clipper to run too slow for efficient clipping and the blades may “drag.” In order to cut a clipper blades two cutting surfaces of the cutter and comb have to be very close to each other. A slight gap can allow hair to get between the blades and cutting stops. Cleaning the blade may allow you to cut again for a short while but hair will again get between the blades. This can be cause by too little tension by the blade tension spring or uneven grinding by a worn sharpening disk or poor technique by an inexperienced sharpener. To determine if the problem is the blade or clipper either try another clipper that is cutting good or a new or known good cutting blade. If the blade cuts on the clipper you are having problems with then the problem is the blade you were having problems with. If another clipper cuts with your blades that weren’t cutting then the problem is the clipper.

How to stop dog clippers from clogging? What to clean clipper blades with?   Keep the blade clean. Use a blade wash and stiff bristle brush. H42 is a very good product for cleaning and lubing blades plus it is antimicrobial. Oil the blades with clipper blade oil (mineral oil). Make sure your clipper drive is in good condition and your clipper motor is running at full speed.

What to do when clipper blades stop moving? Andis AGC clipper need a crank to start. Andis AGC clipper need a push to start. Is the blade firmly pushed against the clipper? If not push it on better with the clipper running, some blades may need the latch pushed in while mounting the blade.  Remove the blade and check to see if the blade drive is moving normally. If it is, can you move the cutter by hand? Is the blade oiled? Is the latch broken? If the Andis clipper needs a “push” to get started that usually means you have a bad spot on the armature and moving the drive moves to armature to a new position where it can start. Power will however be slightly lower with a bad segment. Service is required. If the clipper was dropped sometimes a spring hangs up that keeps the brush making contact with the armature. A quick rap on the brush side can sometimes restore operation.

Andis clippers lose speed. Andis clippers running weak. Fixing slow hair clippers. What causes slow running in a clipper?   The clipper needs to be serviced inside. It may need oil and grease, it may need a new armature. Switch contact wire may not be firmly in place. Switch board may be going bad. A motor clip may be broken (Andis). Oster bearings may be out of alignment.

Andis clippers won’t turn on? Andis model agc quit working. Clipper blade clippers won’t turn on.  Is the clipper plugged in and the outlet is live? If you can push on the blade drive and the clipper runs see comments in above previous paragraph. If you pull and push the power cord by the end of the clipper does it run? Need new cord if it does. If this is an AG model then check the brushes. There should be a spring inside the black screw cover. Be careful when removing. The spring wants to pop out if you are not prepared. The spring has to be there, if not, that’s your problem. Give the clipper a wrap with the handle of a screwdriver. Sometimes that will get a clipper going.

How can you tell if the armature or the field is broken? How to find out whether armature is good or not? How to fix a short in clippers?  The normal check to determine if an armature or field is bad is by measuring the resistance of the wiring of the coil or armature with an ohm meter. On an armature the resistance from segment to segment should be within 5% of each other. An open segment will show infinite resistance, a shorted or partially shorted segment will have much lower value than the others. If you get outlier readings the armature needs to be replaced with a new one. A coil like the Oster A5 should have the same value on each side. On a Andis AG, AGC with a permanent field magnet you look for broken pieces or cracks. Either means the clipper won’t run correctly and needs to be replaced. You need to know the proper resistance values of the coil or armature. If you have a known good one measure that one first then compare.

How to replace Oster clipper two speed switch? Oster A5 rear switch problem. why does my Oster clippers run in off position? Unplug the clipper from power. There’s a photo under clippers that show the switch wiring on this website or take your own picture. Remove the two screws in the switch housing. Note that there should be small washers on the screws. Don’t lose them. On the inside of the switch housing are two brass terminals and one screw connection point without a terminal. Note the orientation of the switch. Remove the screw from the two wires that the center switch wire and one lead from the power cord are connected to. Remove the one brass terminal with the two end switch wires are attached to. Remove the switch nut from the other side and push out the bad switch. Place the new switch in the same orientation as the old one. Put the nut on that switch and tighten. The wire with the black bump should be on the left with the center wire connection point away from you. Reconnect the center switch wire and power cord wire. The left and right switch wires go to the brass terminal you removed earlier. Note that the procedure is the same for the One (1) speed switch except there is only one end wire which goes to the brass terminal.

Clipper won’t cut with blade up. Blade lock issues can make your clippers make noise. Clippers latch won’t open? Clipper hinge stuck. How often will a Oster hinge assembly wear out? Oster hinge assembly fails to hold blade to clipper. Tab won’t stay on tongue. Why won’t blade lay flat on clippers? Blade won’t stay on Andis clippers. How to tighten latch on Oster 76? Check that the socket on the blade isn’t tilted If your clipper blade won’t stay attached. A tilted socket can prevent the latch from attaching and holding the blade in place. Use a plier to even the socket and try again.  A broken hook on a latch (Oster, Andis AGC, Conair, Laube, Wahl) will prevent the blade from staying attached properly to the clipper body. On a Oster 76 and Andis AG type hinge the metal tab may have broken off.  Replace the hinge. If your blade is rattling check to see if the blade latch is bad or the socket is tilted. Hinge springs can break or get weak and need to be replaced. The Andis AG series tend to get weak springs after a while. If you close the hinge and can left up the tongue with your fingers even a little bit easily it’s time to replace the hinge. On latch type hinges make sure the two spring ends are in the holes in the latch. If a spring end is broken or not in the holes of the latch the latch won’t work properly. Replace the hinge. Use a flat blade screwdriver to lift up the hinge tongue, if you cannot either the hinge is broken or you have the wrong hinge on the clipper. This happens with Conair Dynagroom clippers that use a different latch that clears the back of the hinge mounting area.

Oster A5, 76 hinge screws loose or keep coming out. Buy some Locktite or similar screw thread locking product. Clean the threads of the screws to remove any oil. Clean the holes that the threads screw into with alcohol or degreaser to remove the oil from the holes. Apply the thread locker to the threads and screw the hinge back in. Sometimes you need to add a small bell washer under the screw head to help hold the screw in place. Make sure the brass inserts, if the clipper model uses them, are not pulling out of the case. This is caused by the hinge screws being over tightened. If they are, you have a problem. A new case may be needed to fix. If the inserts can be pulled all the way out, clean and crazy glue them back in being careful not to get glue inside the screw holes or you won’t be able to put the hinge screws back in.

Dropped my clippers and now they make a loud noise and won’t cut right. The noise might just be from the clipper blade. Sometimes the blade socket gets tilted from being dropped. Check that first and use a plier to even the socket so it is parallel to the body of the blade. Next check the blade drive. It may need to be replaced – especially on an Andis AG, AGC series, BG, etc. The switch inside may have a broken component or on a permanent magnet field the field magnet may have cracked or a piece broken off. The field magnet has to be replaced.

Andis, Oster, Conair, Laube, etc. trimmer smell? How often do you change the blade on the andis trimmer? Never a good sign when a trimmer or clipper burn smell occurs. For a trimmer it’s probably time to replace it. Trimmers are seldom worth trying to repair. You replace the blade when it no longer cuts effectively.

Oster pet clippers slow when hot. Why do armatures run hot? Why do clipper get hot? Can you repair a shorted armature? Has the clipper ben lubricated recently? Bearings may be out of alignment if this is an Golden A5 model. Armature or coil may be bad. A hot running armature can be from bearing misalignment or frozen bearing, a segment on the armature may be open or shorted, a coil may be going bad or field magnet cracked or broken. Service is required, a defective armature cannot normally be repaired.

Oster Clipmaster won’t turn on. Jammed Oster clipper. Remove the blade and try the clipper again. If the clipper now works the blade is the problem. The blade may be rusted together , there may be to much tension or the blade may need oil. Give the clipper a rap with a screwdriver handle. If it now runs great. Was the clipper dropped? If so, internal damage may have occurred and you should send it out for service.

Laube (Oster, Andis, Wahl, etc) clipper trouble shooting. When i turn my Andis AG clippers to the side they shut off?  Is the clipper plugged into a live outlet? Does the clipper run without a blade on? Does the clipper make any noise or run hot? Check the brushes and see if they are in good condition and that the brush spring is there. Wiggle the cord back and forth near the end of the clipper and see if the clipper runs or is intermittent. Replace the cord if it is intermittent. Does the clipper run in one physical position but not another? Check brushes. If a two speed clipper do both speeds work? If only one then the switch board inside is likely bad. Does the blade not stay tight? Check the hinge and latch. Does the blade not run or cut well. Check the blade drive for wear or broken. In a geared clipper (Oster) a stripped gear will make a lot of noise but the clipper won’t clip. Replace the gear.

Wahl clipper motor noisy. Wahl clippers are running slow. Wahl clippers slowing down. Wahl clippers will not come on. Barber style clipper, oil the blade, make sure the screws that hold the blade are tight. Adjust the side screw to quiet the motor. If this doesn’t do it service is required. On Wahl animal clippers remove the blade and see if it still is noisy. If it is then service is required. Gear may be stripped or motor bearing going bad. If the clipper won’t start send out to have serviced as for most of the other issues.

What causes Oster 76 (A5) motor to bog down? Oster A5 slowly speeds up after starting. Are the blades sharp and oiled?  Has the clipper been oiled (felts and bearings) and greased (gear post)? The bearings likely need to be realigned. Rap the side of the clipper near the oil holes (upper bearing location) and down by the brushes. If it slows down rap the opposite side. Keep doing this until it runs the best. The better way to do this is with a ammeter in line with the power supply but that’s not something most people would have or know how to use. Send for service.

Can i replace a burned out motor on my Andis clippers? Not a recommended do-it-yourself project but replacement armatures, field magnets and other parts are readily available. Send out for service.

My Conair clippers won’t cut my hair. Most likely the blade has become dull and needs to be sharpened. If the sound the clipper is making doesn’t sound normal then the clipper it may need service.

How to change switch in Andis clippers? How to put new cord on AG2 clippers? First, unplug the clipper. In Andis pet grooming clippers remove the 4 body screws and separate the case. In an AG model lift off the switch actuator. In AG pull off the two power wire terminals from the switch board. Color of wire does not matter. AG remove the black and red wires from the brush holder. Remove the left switch holding screw. Lift out the bad switch board and replace with a new one. Put the screw back on. Push the red and black wires back into the brush holder. If they are too loose slightly bend the end of the tab. Reattached the two power cord terminals. Place the power cord with the two groves down. Replace the switch actuator. Put the upper case back on. Put the 4 screws back in. The shorter screws go in the back of the case, the two longer screws go in the front. On AGC switches. Remove the two brush wires from the switch. Remove the white and black wires of the power cord from the terminal block. Remove the two screws holding the switch in place. Put the new switch on, the two power wires and the two brush wires back on. Make sure the switch is in the off (back) position and that the switch actuator on the upper case is back and place the upper case on. The wire hanger stayed in place right? Often falls off. Put back the 4 screws, the 2 shorter ones in the rear, the two longer ones in the front. Plug it in and give it a whirl.

How to grease Clipmaster motor? Remove the two screws from the front of the clipper by the tension knob. These are long screws. Pull the blade drive assembly off from the motor. Inside the blade drive you can see the gear. Put grease in this area, don’t fill it up – just enough to lubricate. Replace the drive and the two screws. Note there are two studs and they fit in the two holes, can only go one way.

How to replace blades on Oster Clipmaster? Loosen the two screws holding the blades on. You do not have to remove the screws. Also loosen the tension know (turn left) to ease the blade tension. Slide out the bottom blade then lift off the top cutter blade. Note that the yoke the cutter blade sits on has two cone shaped pins. Oil the two blades then place the new cutter blade on the two pins with the back side down. Now slide in the large bottom blade on top and push into the set screws. Check the alignment of the two blades to each other, adjust until they are even (parallel) and tighten down the two screws firmly. Run the clipper and adjust the tension if it is too light to cut properly. Don’t put more tension on than necessary to get good cutting. Too much tension will overheat the blades and motor.

How to replace Oster A5 clipper housing? Oster a5 replacing housing? Not a recommended home project. You need some special tools and knowledge of the internal parts. Call me if you really want to tackle this.

Replace brushes Andis AGC. How to change the carbon brushes on a Andis AGC. Brushes seldom need to be replaced in an Andis AGC, they wear very little over time. To replace the brushes the clipper motor has to be removed. Remove the 4 screws in the body of the clipper. Remove the two screws that hold the switch in place, remove the two screws that hold the hinge in place (close it first). Lift out the motor. Carefully remove one of the shiny brush clips. Underneath that clip is a spring which can “spring” out on you so remove the clip slowly so you can catch the small spring. Pull out the brush by the wire. If you have a Q-tip clean out the recess the brush fits in. Replace the old brush with the new one. Note that the wire should be up and slide the new brush in. Put the spring in and reattach the motor clip. Do the other side. Put the motor back in and switch. Put the two screws in that hold the switch and attach the two brush wires to the switch board terminals. Put the hinge keeper in and the hinge and the two hinge screws and tighten. Put the upper case back on and put the 4 body screws back in. The long ones to the front, the two short ones in the rear.

When do your replace a drive tip on Wahl clippers? Compare your tip with a replacement tip. If you see wear replace it. If in doubt, replace it.

How do u know when to change your clippers grease? On Oster A5, 76’s. By opening the drive cover and taking out the lever, link and gear. You should see visible grease. If not you are overdue for greasing. Squeeze grease into gear post and add some more around that area. Oil the two felts by the blade drive and oil the bearing in the front. Put some grease on the top of the bearing and on the two holes in the drive. Replace the drive if it looks worn. On Wahls you have to open the case and look at the drive gear. Grease the gear and drive pin.

How do you tell when you want to replace the carbons (carbon brushes) on your Oster 76, A5? What happens when a clipper carbon brush has gone bad? When a carbon brush goes bad what will happen when the clipper is turned on? If the motor starts to run erratic open the brush covers, spring and brush. It it’s a nub it time to replace. Clean out the brush hole with a Q-tip before putting in a new brush. Make sure the brush orientation it correct (curve of brush should match curve on the armature inside). Put the new spring in the brush kit into the hole in the brush, then insert the brush. Put the brush spring keeper on with the plastic cover on the brass keeper in place. Put the brush cover on and do the other side.

Problems with Andis clippers cord. This is a common issue with the Andis clippers. If when you change position of the clipper and it hesitates or stops the cord has a broken wire inside. When you move it in a certain position the wire separates and you lose power. Replace the cord is the only fix. This most often happens just past the strain relief.

Wahl switchblade clipper rattles? Check the hinge latch. If the hook that holds the blade tight to the clipper is broken off then you need a new latch. If the hinge spring is weak that can cause a similar problem. Other problems may be internal if the clipper was dropped.

What can happen if clippers are dropped? Internal damage can occur which may necessitate sending out for service. The blade can be broken, the switch on an Oster broken, brush springs can be moved (Andis) and needs to be jarred back into place. The clipper housing can be broken. Or, if you are lucky, nothing at all!

What causes Andis dog clippers to heat (overheat)? Blade tension may be too high, lack of oil on the blade, or and internal problem. Broken motor clip, cracked field magnet, bad segment on armature, bad bearing on armature.

What is the point of variable speed on clippers? A variable speed clipper can give you more control over your cutting as well as minimize the noise for sensitive pets by running at a slower, quieter, speed. When you need more power and faster cutter then you dial up maximum speed.

Why is my blade uneven on my Andis masters? Andis master blades supposed to be uneven? Andis master blades won’t align. If you are adjusting your Andis master clippers & your blade stops moving how do you get it to move again?  There are two reasons why a Andis Master blade might become uneven. Most often it is the screws that hold the blade on have become loose or the blade was dropped. Internally there is an adjustment that also can become loose and needs to be realigned and tightened. This adjustment controls the cutter position relative to the larger comb blade. If you are trying to adjust the blade position simply by turning the side screw because the blade is off center you can open or close the gap on the shunt arm so much the clipper won’t run the blade. It is one of the other two adjustments discussed that need to be done and the shunt adjusting screw returned to its normal position.

Scissor screw doesn’t tighten. Scissors screw won’t hold. A scissor screw that won’t hold its position can be caused by several issues. Oil on the threads and hole can decrease the normal friction and allow the screw to turn. Threads that are worn or badly made can also easily loosen from the pivoting action of using your scissors. There should be a metal or plastic washer under the screw head. This may be missing and should be replaced. The threaded hole may be slightly oversize and the screw can turn. Use a thread locking product on the threads and screw hole after cleaning any oil on the threads. Replace the screw if the screw threads are butchered badly. Sometimes using a center punch around the scissor screw hole (with the screw out) can keep the screw from turning when it shouldn’t.

Scissors closing too much. Tips crossing. Either the scissor bumper is broken off or missing and needs to be replaced. Or the scissor handles need to be bent in closer to each other so the tips won’t cross. Both issues should be corrected by your sharpener.

Scissors stop cutting, why? Most often this is due to having been dropped and a small nick caused by the drop is in the edge of the blade. This nick will have to be removed and the edge sharpened to restore cutting. If there is no nick then the edge of the scissor blades have simply become dull with use.


Oster clipmaster how do i put it back together. Before you take any piece of equipment apart that you are not familiar with you should be prepared to either photograph or draw the parts. Having the parts laid out as they go on the equipment also helps in reinstalling parts. But of course, you did all this, right?


How to sharpen clipper blades.    Most clipper blades used for grooming animals are “hollow ground”, adjustable blades are usually flat ground. You need specialized equipment to do either. The cutter and comb blades have to mate very tightly to insure proper cutting. This cannot be done by hand.


Silver coating coming off oster clipper blades.   Some clipper blades are crome coated. This coating can come off if the metal underneath was not properly prepared and cleaned. The loss of the coating will not affect the use of the blade. Chemical action can also damage the surface. Most common chemical action is rust!


How often should i change andis cutter. The cutter and comb blade pretty much wear dull together. You may get some additional cutting by putting in a sharp cutter before the comb completely gets too dull. When the blade stops cutting is the obvious time to change blades.


Carpet shears/how to sharpen.    Carpet shears are sharpened on the same equipment that sharpens any bevel edge scissor/shear. The angles of one blade is generally much steeper than the other blade. Always try to maintain the original angles.


How to keep the armature cool.   Armatures in clipper motors are either cooled by a fan as in the Oster or by convection cooling in the Andis. If your armature is running hot then something is wrong. In an Oster it is usually bearing misalignment causing additional current draw making the clipper hot. In an Andis clipper usually a hot armature is caused by a bad segment in the armature or a cracked field magnet.


Removing blades andis ag.          The hinge system on an Andis AG clipper holds the blade by friction unlike the Andis AGC which uses a latch. Just push the tip of the blade firmly and pull off the tongue of the hinge.


Clipper slider blade won t work.    Also another post: Cutter blade on my clippers won’t move. 3rd post: top blade of clipper                   I’m guessing here but the slider (top blade) is called the cutter blade. If it’s not moving then check your blade drive. In an Andis the drive may be broken, In an Oster the lever may be badly worn or the fiber gear may be stripped. Too much tension by the blade spring may cause drive problems or in extreme cases too much pressure stalls the clipper. A rusted together cutter to the comb can also be an issue.


What does dirty hair clippers cause?      A bad report card. Also the dirt and hair can absorb the protective oil and cause rust in a blade and overheating if you are referring to the clipper motor. Keeping your tools clean and lubricated is critical to long life. Also asked: Why it is important to have well maintained blades? Your blades are your professional tools, they are expensive so keeping them clean and properly lubricated is very important in getting the maximum life from them and the longest cutting.


Andis 5 speed clipper won t turn on.       Make sure the transformer is plugged in. Try giving the clipper a bang on the side.. I’ve had several bad switches on the Andis 5 speed although it’s usually 1 or 2 of the speeds that stop working. If the transformer is bad – the part that plugs into the wall giving it a rap can sometimes help get that model clipper going but if you have to do that at some point that won’t work any longer and the cord will have to be replaced.


How can i clean and sharpen my clipper blades.         Cleaning is easy, run in a blade wash or similar solution. You can’t sharpen your blades without an expensive professional machine. Send them to a good sharpener.


Oster clipmaster nut replacement. The nut doesn’t usually need replacing unless it’s lost. Do you need another nut?


How to test the armature on andis clippers.      Use an ohm meter to measure the resistance segment to segment. An open segment will measure infinite resistance and a short or partial short will measure a much lower resistance than the others. All should measure within 5% of each other.


Do i need to oil ceramic blades on clippers. Yes, the ceramic is running on the steel comb blade which needs oil. The plastic guide should also be oiled. Oiling lowers the friction (heat) and helps lengthen the life of your blade wither it has a ceramic or steel cutter.


Rattling Andis clippers (or Oster or Wahl etc.)   Rattling in an Andis is usually caused by having been dropped. A screw post may break off or the capacitor may break. A piece of the field magnet may break off. Someone my have left a part inside when servicing. Rattling in an Oster can be for similar reasons as above or by an armature fan becoming loose.


When should brushes be replaced in andis clipper? Also: When to replace Oster motor brushes

          Andis and Conair brushes wear very slowly compared to an Oster. When the clipper stops running or runs intermittently the brushes may have worn to a nub. If the brushes get wet (usually too much chemical spray or blade wash getting inside) then the brushes should be changed after drying the armature. Assuming you haven’t burned the armature out getting it wet! Note that all brushes have a curved face that curve must match the curve of the armature the brushes rub against inside the clipper. Make sure to mate the curve of the brush to the motor armature. Also do not forget to install the brush spring, it keeps the brush against the armature. If it’s missing the clipper either won’t run or run on/off.


How do i know if the blade drive is going bad on my clippers.           If a known sharp blade isn’t cutting right then you should suspect a worn blade drive. If you have a new blade try that. Examine the drive for wear. I have some pictures on this web site that may show you what wear or new looks like.


Fix broken capacitor leads.          I’m guessing you are referring to an Andis switch board. Mostly we just replace the board, it’s easier and quicker than trying to fix the broken leads. If you are skilled with a soldering iron then unsolder the broken capacitor leads and install a new capacitor if you can find one.


Oster a5 stop working.                Are the brushes worn? Is the cord plugged in? Does the cord have a broken wire inside (try wiggling the cord near the switch end). Was the clipper dropped?


What clippers can Oster blades fit onto. Depends on which Oster you are referring to: An A5 or 76 Oster can use any A5 compatible blades. These can be from many vendors and all A5 blades from Andis, Oster, Wahl, Laube, as well as store brands will work just fine.


How to set clippers blades?         This question is a little vague but if you are referring to the cutter blade setback over the comb blade then the cutter teeth should not extend past the bottom comb blade and the bottom of the v between the blades should be slightly further back than the comb teeth v. Some blade sockets don’t have enough play to allow a full setback but most do. Too much set back is not good either. About 1/32” is correct.


Wahl Arco adjustable blade sharpening.  The Wahl adjustable can be sharpened but only by a profession sharpener with the right equipment. The cutter blade does not have a lot of metal to it but can be sharpened several times. The comb blade has lots of sharpenable metal.

Clipper blades not parallel                          Solution: loosen the two screws, push cutter until it is even, retighten screws.


Clipper armature inspection        The commutator should be clean and shiney, measure resistance segment to segment, resistance readings should be within 5%


Oster clipper doesn t have an oil wick                     The newer Oster cases no longer have the oil wick, you have to oil by taking it apart. The rear oiler was eliminated years ago due to over oiling shorting the clipper.


Plastic piece in between top and bottom of clipper blade is broke This is called a blade guide, replacements are available.


Clipper blade socket replacement             Socket tabs break replace with a new one, remove the two screws, lift off the spring and socket, remove socket and replace with a new one. Reassemble, making sure cutter is properly aligned, retighten screws, recheck blades stayed aligned.


How to remove rust from clipper blades                Soak in WD-40, use a mild abrasive to remove, don't touch the cutting edges or rear rail with the abrasive. Clean, dry and reoil.


Which clipper blades do you hollow grind            All A5's, barber blades comb flat ground usually.


How to fix a loose cord on an oster clipper                          Not sure what this one is about, cord at clipper end should not be loose, if it is replace. If the plug won't stay in bend prongs out but if that doesn't work, replace cord.


Oster clipper blade instantly stops cutting            Maybe you tried to cut dirty hair and it dulled the blade "instantly", or the blade may not be ground properly with too much of a gap between cutter and comb allowing hair to get between the blades and raising the cutter off the comb, or the blade spring tension is too low allowing hair to get between the blades.


Should you lube your clippers/ does the clipper oil make the blade last

               YES absolutely oil them and clean them with blade wash after use, lube before you start and clean and lube during if you hear the speed slowing down, when you are finished, clean the blades again and oil before storing. The oil reduces the friction of the moving cutter and less friction means less heat too. Use an approved clipper lubricant, both Oster and Andis sell their own oil and other suppliers on the secondary market make good products too.


Oster clippers running slow         Most common problem is the clipper was dropped and the bearings are out of alignment, another issue is failure to lube and grease the gears, oil felts and oil wick and pivot post of the link and lever,  thirdly worn brushes, very dirty armature


Changing brushes in clippers.     Osters, remove the screw plug, pull out the plastic covered brass brush keeper, remove the brush. Insert the new brush making sure curve of brush matches the curve of the armature inside the hole. Put spring in brush and push the brush retainer down over the brush spring then replace the screw cover.


Andis AG/AG2. Similar to Oster above. Carefull, under the Andis screw cap is a spring which can jump out if you are not expecting it. Brushes sometimes stick, try rapping the other side of the housing with the handle of a screwdriver to knock the brush loose. If the brush won't come out, then the clipper should be taken apart, not a do-it-your-self project. It means there is a build up of carbon or liquid has coated the brush, not a good thing.


 Andis AGC brushes, the motor has to be removed, two screws that hold the hinge on and the two screws that hold the switch board and rear of motor to housing have to be removed.  Then the wires from the brushes need to be removed from the switch board. Once the motor is out the the metal clip has to be carefully removed. There is a spring under the clip which can pop out.

The purpose of the brush springs is to keep the brush tight against the armature, without the spring the clipper won't run at all or be very intermittent. Don't loose the spring! Note how the AGC brush is oriented, the metal wire is at the top and the replacement brush has to go in the same way. Replace the spring and replace the metal clip. AGC brushes don't need to be replaced very often and your regular service provider is probably a better choice than trying to replace them yourself. Reinstall the motor, switchboard, put the two brush wire terminals back onto the switchboard and reinstall the hinge keeper and hinge.


Dropping clippers replacing the broken armature in andis            Replacing an armature in an Andis is not a do-it-yourself project for most people. You need more than the replacement armature and likely won't have all the parts needed. The Andis armature is the most expensive part of an Andis clipper unlike an Oster armature. If the Armature is truly bad and it's not the switch board then the field magnet could also be bad if the magnetic material has become cracked from a drop. Sometimes a bad switch will burn out an armature, sometimes a bad armature will burn out the switch. You need to be able to diagnose the true problem or burn out more parts. Not recommended unless you have all the parts needed and know what you are doing.


Pictures on how to put new switch on oster  Pictures on my website. Be aware of small screws, small washers and location of wires. To replace the switch you need to remove the nut that holds the switch in place, Remove the screw and wires from the switch and power cord. Remove the screw that holds the wires from the switch and brass terminal. The other brass terminal with the other power cord wire can remain in place. Push out the switch and put in the new switch. Replace the wires and terminal as in the original setup. I suggest making a drawing first of which wires are where before attempting this.


Clipper blade setback     Clipper blade "setback" is the position of the top (cutter) blade over the comb blade. The cutter should sit back enough that the bottom of the teeth of the comb are just showing at the bottom of the cutter teeth.


What does the andis armature adjustment screw do?     Wow, you got me on this one, I didn't know there was any adjustment screw for the armature. Are you talking about the brush cover on the AG/AG2? Covered that above.


Common reasons why clipper blades don t work properly             in no particular order. Bad blade drive, clipper running too slow, blades have too much or too little spring tension, blades not ground properly.


Clippers don t work with all blades           I've seen this most often on Laube clippers. Some brands of larger blade sizes don't fit on tightly. Andis and Osters should work with all A5 type blades unless the blade latch hook is broken off or the hinge springs have become weak and can't hold the blade tight to the clipper.


My clippers dropped and the case broke                             Replacement cases for Andis and Oster are readily available. Andis cases are easily replaced and are relatively inexpensive, Oster cases not so easily replaced and are more costly. Let your service guy do that. If your clipper still runs then the fix is not expensive.


How often should andis clipper blades be changed          Well, the obvious answer is when they don't cut any longer, if you are asking about blade life, usually years until there is no metal left to grind. Most blades can be sharpened many many times.


Liquid blade clipper blade repair liquid   I have no idea what this question is about, sorry no help there from me.


Clippers are rattling and blades are coming out of clipper.            Rattling blades are usually caused by the blade socket becoming spread. Tighten the tabs with pump pliers. Don't squeeze too much, just adjust a little and try the fit. Blades not staying attached is usually cause by a broken blade latch hook having broken off on Oster, AGC's and Wahl, Laube clippers, or on an Andis AG a weak spring. If an AG spring is weak it will too easily move either freely or without much effort when lifted by a screwdriver when the hinge is closed. Replace the hinge or blade latch.


How to fix noisy wahl     Since the model of Wahl is not mentioned here I will deal with the KM1, KM2 which can become noisey. The noise may be coming from the gear/motor area or drive. The pad on the top of the motor can be worn out and needs to be replaced.  Like many of the problems above the problem has to be diagnosed.


Oster body clippers put back together    Well, if you took them apart I assume you took notes, pictures or the like. If not, good luck to you.


Why is my ivac buzzer running hot           Did you oil your blades? Is the spring tension of your blades correct? Can you move the cutter by hand, if not the tension is too high, These are the two externally caused problems that can cause any clipper to overheat. Internal problems need to be checked by Laube service.

Keeping clipper blades sharp         Cut clean dogs only! Oil and use blade wash during cutting and clean and oil at end of day. Use high quality blades or ceramic cutters which can last longer in harsher hair.


How to change carbon brushes that broke in oster           Broken brushes if they can't be jarred out by rapping the case on the opposite side will have to be removed by pulling the coil and armature which may be more difficult depending on how much bush is sticking into the case. Coil and armature removal require special tools. Sent to your service place.


Oster 76 hinge falls out                 The hinge screws in an Oster can become loose, clean the screws and screw hole thoroughly with a solvent to remove any oil. Then Locktite the screws and reinstall. A very thin lock washer under the screw head can also help but it has to be thin or the blade won't sit down far enough.


How to put the power switch together for andis clipper  This question is a little unclear. The power switch comes on a circuit board. The two wires from the power cord attach to the switch board and depending on the Andis model the board connects to the brushes either by the red and black wires goings to the brushes on the AG/AG2, on the AGC the brush wires connect to two terminals on the switch board.


What to do when clipper blades wont cut             Replace the blade drive if it's worn. Is the clipper running at normal speed? If a new blade drive doesn't fix the problem then the blades may have too much or too little spring tension. If that is not the problem then the blades were not properly ground and need to be properly done.


What causes clipper blades to get clogged up with hair  Lack of cleaning, use a blade wash to keep a buildup of gunk on the blade teeth and clean out hair residue. Use a stiff brass or bristle brush, don't use a steel brush.


Blades won t stay tight                 This is usually caused by a broken blade latch hook. Replace the latch. On Andis AG/AG2's the spring may become weak and won't hold the blade tightly. All hinges may do this but the AG/AG2 do this more often.


Blades won't click onto clippers                 Blade socket wings may be too tight, spread the wings/tabs slightly with pliers, keep testing until a good fit. Cutter may be too far off to one side, move to center. See blades won't stay tight, same type of reasons for this issue


Are ceramic clipper blades better?    Yes, the ceramic cutter is much harder than steel so it will stay sharper longer, usually 3 or 4 times over steel. The drawback, ceramic is quite britte and can break or get chipped edges, you have to take care of them. Ceramic can be sharpened but it requires diamond because of the hardness. Replacement ceramic cutters are available about 2x the cost of steel replacement cutters.


How to clean armatures on clippers:  On Oster and AGC’s you have to take out the motor/armature. If you don’t know how, you shouldn’t be doing it. Send it to a good repair facility. On Andis AG’s the commutator is accessable but in order to do that you need a small armature cleaning stone which you hold against the armature as it is running. Then you have to clean the debrie. On other armatures if you have them removed you can use a woven abrasive cloth and blow debrie clear after. Keep hands oils in hands from getting on cleaned armature. Blow out carbon too from slots in armature.


Can the hinge on the oster dog clippers cause the blade not to cut?:  Yes, if the hinge spring is weak, happens most often on Andis AG. If the hook is broken on models with blades latches that can also make the blade not make close enough contact to engage the blade drive.


Sharpened clipper blades how long will they stay sharp?:  Depends on what you are cutting. Dirty hair, maybe only minutes. Poorly sharpened blade, not very long if at all. Keep them clean and oiled, will last if hair is clean and blade was properly sharpened. Quality of blade can have some effect on life too.


How to know if your clipper is broken:  Hmmm, if it doesn’t work anymore or doesn’t cut like it did before becoming broken.


How to tell if brushes on a5 is worn:  Pull the brush. If it’s just a nub (1/8”) it needs to be replaced. If the brush is uneven, dirty, has liquid or broken, replace with new ones. Don’t just change one, do both. Make sure you place the curve of the brush to match the curve of the armature inside.


Fixing dropped clippers:  When a clipper gets dropped internal or external damage can occur. Fixing depends on the problem. If it is just cosmetic, just use it. If you hear rattling inside don’t use it if you sense any running problems. On Andis clippers a capacitor can break off, screw posts break off. If a capacitor breaks either it won’t run or you lose the hi speed. On Osters dropping can break a switch. The Oster bearing can also become out of alignment and the clipper will run slow and hot.


Fixing andis clippers if motor is slow:  Slow running can be caused by several items. Dirty/bad brushes. Dirty armature. Short or open in armature, bad switch board, cracked field magnet. The fix is to find the problem.


Sharpening clipper blades at home:  Without a proper clipper hollow blade grinder forget it. Clipper blades have to have very tight tolerance in order to cut properly. Handi Hones do not hollow grind.


Why hollow grind clipper blades?:  Clipper blade manufactures found out long ago that the best cutting blades are hollow ground. The hollow grinding reduces friction (HEAT) without affecting the cut. Heat is not your friend either to the animal you are cutting or to the metal in the blades (heat causes expansion of metals)


How much grease should be in my oster gear box on my clippers?  Enough grease that it is visible; the fiber gear that spins on the post should not be running dry (the post the gear runs on as well as the top of the gear where the link runs and the bottom of the gear which rides on the gear washer), nor the other pivot points on the link and lever. The gear box should not be over filled with grease either.


Why can't I get the screws loose in my Andis switch board?  Most likely the plastic posts the screws go into have broken off because of a fall. When you try to unscrew these screws the broken post just spins around with the screw. Before doing anything, you did unplug your clipper first, right? Easiest way to get these screws free now is to remove the hinge, lift out the motor and use a pliers to hold the plastic screw post while you unscrew the screw. While sometimes you can crazy glue a broken screw post back into position, more often you have to replace the lower housing with another one. 


How to put back together my oster clipmaster?  Very carefully, in the order you took it apart. You did make a diagram right? And put parts in a bin or tray to keep them secure?


Tightening scissor screws:  When your scissor is tight enough the blade will fall to about 1/3 to 1/4 the length of the blade. Hold scissor horizontal and bring top blade upright and drop towards the horizonal blade. The easiest are the self adjusting screws on many convex scissors. For slotted screws a good scissor screwdriver is best but a regular screwdriver can work if the slot is clean and undamaged but you must push the screwdrive down firmly to keep from slipping and from damaging a screw. Scissor should be laying on a hard surface, not in your hand. Some scissors need a special tools such as a hex wrench or a pin wrench.


Clipper blade too tight.  Your blades should be oiled, front cutter area, back rail and in the grove on top of the cutter where the plastic guide rides. If oiling does not free up the movement then I assume you are referring to too much tension by the spring. You can use a flat blade screwdriver to lift up the spring to weaken the tension.  Go very light on the lift up of the spring, too much and you won't have enough tension. Lift very lightly and try moving the cutter blade over and back. It should move easily but with some resistance.

Clipper blade no longer moves:  This could be a number of things. A broken blade drive in an Andis or bad drive bearing,  a stripped gear in an Oster, a lot of rust in the blade keeping it from moving (soak in WD-40 or similar).


Clipper hinge stuck!  Use a thin flat blade screwdriver and pry up. If it's the blade latch underneath the hinge then the hinge spring may be broken. Have the hinge replaced.


AGC clipper blade troubleshoot:  A little more information would be helpful to answer this question since AGC is a clipper and not a blade. It either cuts or it doesn't. If it isn't cutting and it was recently sharpened then the sharpening may not have been sufficient. Have your sharpener check it out. If you were cutting very dirty fur the blade may simply become rapidly dull, part of the business of being a groomer. A bad or worn Andis blade drive can cause a blade not to cut properly. Replace the blade drive and see if that fixes the problem. If your clipper is running slow this can affect cuting action of a blade. Is your clipper running normally? Internal problems can be worn out brushes, a bad switch, dirty armature or brushes, a short or open in the armature, a broken motor clip making the alignment of field magnet and armature out of alignment, much more rarely a bad bearing at either end of the armature.


How often do clipper blades need to be replaced?: Answer, not very often usually, I've had many blades that have been used and sharpened for many years. Obviously how much cutting you do with a particular blade will affect blade life. Not oiling your blades will shorten blade life, running a high speed all the time will shorten blade life. Not cleaning your blades or allowing them to rust will afect blade life. Breaking any teeth will afect blade life. Basically, clean and oil your blades will extend blade life for you. Sharpening usually only removes a thousanths of an inch or so each time. You can get many sharpenings from most blades.


I have have my dog cippers blades done twice and still are not sharp:  Get another sharpener! Not everone with a clipper sharpening machine knows what they are doing. Sharpening disks wear and improper technique can make for bad blades. Make your it's not your clipper, a bad blade drive can be a problem.


Clipper motor runs slow:  Depends on the brand of clipper. Oster, bearings most likely out of alignment from the clipper being dropped. Andis, a short / open in armature. Both bad brushes. Oster, not greasing and oiling regularly. Blade tension too high can slow clipper down too much. Blades will get hot quickly in this case.


How clipper blades work:  The teeth in a clipper blade act as a whole bunch of tiny scissors. The hair get sheared off by the cutter (with sharp edges) slicing the hair off against the sharp bottom blade. The drive of the clipper fits in the notch of the cutter blade and drives it back and forth. The drives can wear so these need to be changed from time to time. The spring (the arched metal piece on the top of a clipper blade) apllies enough pressure to keep the two blades together or hair would get underneath and cutting would stop. Too much pressure and the blade may not move fast enough to cut and wears the clipper parts. The plastic piece on the end of the spring that rides in the groove of the cutter reduces friction. If this breaks the blade tension will be too light. The blade socket fits into the clipper hinge to lock the blade to the clipper. If the blade socket wings become spread the blade will rattle or if the socket becomes tilted it will allow the blade to become loose and the blade can rock up and down. The screws should be tight that hold the spring/socket to the bottom comb blade. If they become loose then you loose blade tension.


Are plastic clipper blades longer than metal clipper blades?:  First off, there are no plastic blades, the white cutter blade you see on ceramic blades are made of ceramic. Ceramic is a very hard material almost as hard as diamond and the hardness can give you long cutter life between sharpenings but ceramic is also much more brittle than steel so it can chip or break. The length of the ceramic cutter are the same as steel cutters generally.


Why are replacement blades for clippers not sharp?  Well, some are, some aren't. Large manufacturers of blades make thousands of blades every month. These are mass produced and it can be expected that some will not be as sharp as others. Clipper blades have to be very close tolerence to cut properly, after all you are cutting hair that is very small diameter in many pets, especially cat hair. Most manufactures have a method of returning blades if done quickly. Test your blades when you receive them and  call your supplier immediately if they are not to your satifaction.


What happens if you over sharpen your clippers? Other than wear them out more quickly if that's what you mean by over sharpen. Otherwise it is not possible to “overshapen” them, the better the sharpening the better the blade will cut and the longer it will stay sharp all things being equal. The higher number blades 10-50 can become sharp on the edge of the comb occassionally. A diamond file can fix that by removing the over sharp edge. Just don't file the cutting surface area.


What happens when springs on clipper blades are uneven?  The tension of the cutter against the comb will be uneven and the blade may not cut on the weak tension side. Place the spring on a flat surface. If one side is visibly higher or the spring rocks then it needs to be adjusted so it sits flat (even tension across the width of the spring).


How do you know if a blade hinge is bad andis?  The blade will not stay against the clipper. If the hinge tongue can be lifted when it is closed with a screwdriver and you don't have to really pry it up, replace the hinge. If it moves easily at first with a screwdriver change it.  The internal spring has become weak. Happens more often on AG hinges than AGC hinges.


Conair clipper parts.  Conair clippers are made in China, they are more trouble prone than their American counterparts made by Andis and Oster. Parts that are available can be obtained by Ryans Pet Supply in Arizona. I carry some parts here for repairs that I do on Conair. Generally I don’t advise buying a Conair because of the reliability and parts problems.


Replacement scissor finger rings:  I carry finger rings of various sizes and colors as do many sharpeners. Ask your sharpener for them.










Clipper blades wearing out too soon:   Usually if all are wearing out too soon the blades were insufficiently ground, or ground on a worn or faulty disk. If only a few blades it may simply be from trying to cut dirty fur. Running blades on high speed all the time will also reduce blade life. Not cleaning with a blade wash and then re-oiling blades will reduce blade life.


Extend a life clipper blade cleaner:  There are many products on the market that will help extend the life of a clipper blade. Blade washes will help clean out hair, oils, and contaminates. Products such as H42 additionally help kill bacteria and provide some lubrication. Keeping your blades oiled is also important to extend blade life. Cleaning the fur before clipping will also extend blade life. At the end of a day all blades used should be cleaned and oiled. The longer contaminants sit in the blade the more damage can be done. Heat and containments can form a varnish which cannot be removed except by grinding. Your clipper blades are valuable tools of your trade, treat them accordingly!


How to fix (install)  an oster a5 cord:   Replacement is the best option. Wrap electrical tape around the damaged area if the damage is only superficial otherwise replace. To replace:    Remove the switch end cap (2 phillips head screws down inside two holes) . Make sure the clipper is unplugged first! Remove the switch nut. Remove the 3 screws inside. Note the position of the switch first and the wires. Push out the switch. Remove the cord by twisting the cord to align the skinny end with the hole thenslide to wider center hole and pull out. Install new cord reverse of removing. You have to reinstall the switch in the correct orientation. Then push the switch down and put on the switch nut firmly. Reinstall the screws/washers  and terminals as in original configuration. Best to use a screw holding screwdriver for installing the screws. Make sure the terminals will make contact and clipper will run before reinstalling the switch cap screws. You may have to loosen and move the terminals a bit so the switch endcap will fit on the clipper. Note that there is a notch in the back of the clipper that a tab on the switch endcap fits into. Photos of switch in clipper repair section of this website.



How to install andis clipper cords: There are two basic types of cords used in Andis grooming clippers. The AG/AG2 cord and the AGC style cords. Unplug the clipper first! Remove the 4 clipper housing Phillips screws from the bottom, note longer ones go to front. Flip the clipper over and lift off the top housing. The AG/AG2 cord has push on connectors so you only have to pull them off. The AGC cord connects to a screw terminal block. Remove the old cord by loosening the two small screws and pulling out the black and white wires slowly. Insert the black and white wires from the replacement cord into the screw block - doesn't matter which wire goes into each hole and tighten the screws firmly but not overly tight. Place the cord in the rear cutout with the two slotted end down where the wire hanger sits. Replace the top housing. The wire holder on the AGC tends to want to fall out so you have to keep the top and bottom clipper housings pressed together with one hand while inserting the shorter rear screws and tightening them, then do the front screws. Don't over tighten! The two housings should come together with no gap but overtightening the screws can make trouble for you.



What material are clipper blades made from?  Most modern blades are made from stainless steel, older blades and cheap blades from carbon steel. Most all clipper blades are hardened. The higher the hardness (measured in Rockwell units) the longer the blade should last. Special coating can be applied to blades such as titanium oxide (gold color) or other surface hardeners. The cutters can be steel (stainless or carbon) or ceramic. Ceramic is much harder but brittle (breaks easier or chips). Some blades come with a plastic coating to help protect against rust. Don't let your blades rust (moisture, hair inside blades and oxygen (air) can cause rust.


How to fit blade in clipper?  Wow, if you have to ask this I have to wonder if you should be using a clipper to cut hair but here it goes.

 Most dog grooming clippers have a hinged tongue that fits into the slot at the back of the clipper blade. The tongue, if closed, has to be wedged opened with a flat head screwdriver if it is closed before the blade can be installed. The small top blade (cutter blade) should be more or less centered on the large bottom blade (comb blade) so the clipper blade drive can engage the notch at the back of the small cutter blade.  Turn clipper on and push the clipper blade down onto the clipper. Some models (Laube comes to mind) require the blade latch be pushed in to install on those clippers that have a blade latch to push. The hook on the latch holds the blade tight to the clipper after the clipper blade is snapped down.


Many trimmers and barber clippers blades are mounted with screws with the smaller blades put on first with the top of the blade being placed down onto the blade holder (depending on clipper, diamond shape, two metal clips, two wires, etc) then the larger (comb) blade is placed on top with the cutting surface matched against the smaller blades cutting surface and the mounting screw holes over the screw holes in the clipper surface. Then the two screws are inserted. Before fully tightening you want to align the two blades, there is usually some play in most of these types of blades then tighten firmly.


German Wahl Moser blades just snap on. They have 3 plastic ears that will hold onto the clipper. Sometimes one of the plastic ears will break off and the clipper blade won't stay on. New black plastic platforms are available so don't throw the blade away. Send to Bruce's Sharpening for this service!


diy dog clipper sharpening:  Doing it yourself isn’t doable because the close tolerance requirements of clipper blade sharpening exceeds at home methods. You need a professional hollow blade grinder to restore worn teeth on clipper blades. Factory clipper blades are hollow ground for most clipper blades because that reduces friction. Friction is not your friend in cutting as it generates heat and wear. Some flat grinders such as the “Handi Hone” can really mess up clipper blades in a hurry and I don’t recommend them. Clipper blades are precision tools and require professional sharpening. The cost of sharpening is minor compared to the cost of new blades, especially quality name brand hardened blades.


Fix Oster turbo a5 hinge tongue:  Since the problem wasn’t describes I will cover a few items. The hinge and tongue on a clipper is designed to hold the clipper blades tight to the clipper. The tongue has to be extended if closed by prying out with a flat blade screwdriver. If the spring inside the hinge is weak the tongue will move very easily or flap. If this occurs the hinge needs to be replaced. Attached to the underside of the Oster (and Andis AGC) hinge is a black “blade latch.” The purpose of the latch is to hold the clipper blade with a small hook on the end. This hook can break off then the latch has to be replaced. Note that the latch for the Oster and Andis AGC are not the same. The Andis AGC latch has a hole near the hook to clear the Andis blade drive. A broken blade latch hook means the blades won’t be held tight and will rattle. Blade rattle is bad, falling off is worse. On the bottom of the hinge there are two pins (part of the spring) that fit in the two holes in the latch. The hinge needs to be closed to put a new latch on. Once the two pins are inserted in the two holes move the latch so that the hook catches the end of the hinge and stays. Pictures of this are on this web site in another section.


The second problem can be that the Oster hinge/latch screws become loose. The screws should be cleaned of any oil and tightened but may become loose with vibration again. Use a thread locker such as Lock-tite to help seal the threads once the screws are tightened. A repair shop can do this for you.


A third problem isn’t so much the hinge tongue as a tilted clipper blade socket. If it is tilted upward the blade will move up and down. If the socked is tilted downward, the tongue will not fit inside. The socket tilt should be corrected with pliers carefully. Keep putting a blade on to test.


A 4th problem I’ve seen is the wrong hinge has been put on the clipper. Make sure you have used the correct hinge designed for your clipper.


Oster a5 blade latch moves:  Similar to the question just above but in this case the latch may not be attached to the hinge either because one or both spring ends have broken off or been bent by improper installation. If the pins are broken or bend, replace the hinge. If the screws have vibrated loose that hold the hinge then the latch may have dropped off the pins and you have to remove the hinge (close the tongue first) and reinstall the latch holes into the pin ends as described above. There are pictures of all this on another section of this web site.


Are plastic clipper blades longer (lasting) than metal clipper blades?   I assume this question refers to ceramic blades in which the cutter blade is made of a ceramic. Usually white in color but Oster colors their ceramic cutters black. Ceramic is a very hard material close to diamond in hardness, much harder than steel. However this hardness comes at a price in that ceramic is brittle and can chip or break easily if not taken care of. Ceramic cutters will usually last 3 times longer than a steel cutter before needing sharpening. They can be sharpened with diamond if not too chipped. Replacement steel and ceramic cutters are available, I carry them here.





Setting the spring tension in grooming blades:  The cutter should be able to be moved with medium pressure (you did oil your blade, right?). If it is difficult to move the cutter then you may have too much tension (pressure on top of cutter against the comb blade) and you can loosen this by using a screwdriver under the spring (move cutter to one side first) and gently lifting up. Recheck. Do this slowly and gently, if you overdo the lifting and cause too little pressure then you will have a problem! Too little pressure and hair will get between the cutter and comb and cutting will cease. If tension is too high, it wears both the blade and clipper drive and can overheat the clipper motor by forcing it to move a too stiff cutter back and forth. For too little tension you should take the blade apart and gently squeeze the spring loop where the screw goes through. This will be a trial and error effort. Your sharpener has the tools to set this easily.


What causes Oster clipper hinges to become loose?  Vibration. Oster doesn’t use Locktite on its screws as Andis does. Remove the hinge screws and clean any oil on screw or thread inserts. Apply a drop of Locktite  to the threads and retighten the hinge screws. A low profile lock washer can also be used but it must clear the hinge and not elevate the screw head by much.


How do i know if my Oster a5 latch is bent?  If the latch hook is not broken off and the blade socket isn’t tilted and the blade doesn’t stay tight to the clipper then your latch is likely bent. Replace the latch.


Oster 76 fix rattling blades.  Rattling blades can be from a spread blade socket. If you can wiggle the blade side to side when it’s not running the blade socket is spread. Tighten the socket with a pump plier. Test until it is snug. Sometimes it is a clipper problem. Either the hinge is weak or on models with a blade latch the latch hook is broken off. Replace either.

Can you use kerosene to clean barber clipper blades?  Sure, if you can stand the smell and your customers can too. There are less smelly products available to clean blades with. Some mentions in an earlier question above. For longer storage of our blades to help prevent rust kerosene can not only clean but leave a oil residue to help prevent rust. I would clean the kerosene before using on fur.


Oster  clipper stops during use.  Likely causes are a bad power cord. A break inside the cord can make temporary contact when the cord is in certain positions and open in other positions. Less common is brushes that need to be replaced. The contacts inside the switch end can be not making good contact or are corroded.


How to fix clippers not working. Most commonly used clippers are easily repaired but best done by a professional for some items. 1st you have to be able to diagnose the issue that is causing the problem, have the correct replacement part or parts and be able to make any adjustments to optimize the clipper’s operation. Best send it to Bruce’s Sharpening for repairs and service!


What is the best clipper blade cleaner?  Andis and Oster have specially formulated blade wash as do 3rd party vendors. One of the better ones is H42 which cleans, lubes and can kill bacteria. It is more expensive than blade wash.


If teeth are broke off on andis hair clippers will they still work properly?  That depends if there is some tooth left on the comb for the cutter to shear the hair off with or if the cutter is partially broken or complete tooth loss. If a tooth is totally missing the hair at that one spot won’t be cut. Many groomers use #40’s with combs and they tell me not to worry about the broken teeth on the #40 as they use combs. As long as they are happy I’m happy but the cutting is between the cutter and blade comb, not the attached comb soooo?


Why does my clipper blade fall out?  Clipper blades are held to the clipper by the hinge (the piece you mount your clipper blade on) and by a latch. On Andis AGC’s, Laube’s, Osters and similar clippers the latch is a metal piece that attaches to the hinge and has a hook that captures the socket on the blade. If the socket is tilted then the hook may not catch and hold the blade. If the hook is broken off, a common problem then it must be replaced. I have pictures on this web site on how to do this replacement. On Andis AG’s they use a combination hinge/latch that uses pressure rather than a hook to hold the blade. The hinge spring often becomes weak on the AG hinge. On any hinge if the flap can be lifted without effort then the hinge should be replaced.



Hair clippers won t stop rattling even when turning the screw.  Likely one of the internal springs has become weak and the pivot is no longer centered. The springs need to be replaced. Make sure the clipper blade mounting screws are tight.


Clipper blade won t move.  The blade drive in an Andis clipper may be broken, In an Oster it can a stripped gear. Of course if the clipper isn’t running that will do it too! The blade itself may be rusted (you have been oiling, right?) and can’t move.


How do i fix my Andis clippers if they stop working and dont turn on? Send it out for repair would be best. I do clipper repair here at Bruce’s Sharpening! Andis clippers often stop working after a fall. It can be a broken switch board, a brush stuck away from the commutator, a broken field magnet or similar problem.


How do i fix my Andis agc clippers when they stop working?  Similar to above questions. You have to diagnose the problem and replace any defective parts. Best done by a repair shop like Bruce’s Sharpening. Not enough information here to answer beyond this.


Andis clippers sometimes won t start.  Intermittent operation in an Andis clipper can be several things the most common is a broken wire in the cord. Sometimes it will make contact and other times be separated a bit. A bad segment on the armature is another common reason. When the clipper stops on this bad segment the clipper won’t start. Moving the blade drive sometimes will restart the motor but you won’t have full power and the clipper may run slower. A loose wire on the switch in an Andis AG will cause problems sometimes. Also asked: How to fix a Andis clipper when you drop it?


Removing the bearings from Andis clippers: ( also: Andis clippers drive bearing shaft replacement )The only bearing normally “removed” from an Andis is the drive bearing. This just screws into the armature. In order to get to the bearing you have to take the motor apart. The two screws that hold the hinge in also hold the front of the motor and the two screws that hold the switch also hold the rear of the motor into the lower case. Depending on the model of your Andis the brushes are removed next, then the two motor clips are removed and the front motor mount can be removed. Unscrew the drive bearing and screw in the new drive bearing. Reassemble the motor in reverse order. Note that for AGC’s you need a replacement rubber that wraps around the front of the motor.


What causes an Andis clipper to make noise?  Blade drive going bad is most common. Bad hinge or latch or loose hinge. Broken pieces inside case.


Reasons why dog clipper blades don t cut?  #1 reason, dull blades, #2, bad drive , #3 reason bad sharpening, #4 reason clipper motor running too slow, #5 reason, too much blade tension. There are more reasons but these are the most common.


Laube speed feed blade spring.  Broken is it? Seems to be a common problem with the speed feed blades. Unfortunately replacement springs are not available at this time and may never be. They like to sell you a new blade you know!


What happens to clippers if dont use oil?  Not sure if you mean the clipper or the clipper blades. Oil is a lubricant, if either isn’t oiled then you have friction, heat, damage. Use oil!


Clipper screws are stuck.  I’m guess you mean clipper blade screws not screws associated with a clipper. Rust can make removal of clipper blades screws difficult. A good WD-40 spray may loosen the rust so you can loosen the screws.


How often should Andis (Oster, Laube, Conair, Andis, etc.) clipper blades be washed?  When you see hair building up or goop forming . Keeping the blades cleaned and oiled extend the cutting life of your blades.


Clipper blade socket repair. Picture and description are available on the Blades tab to help with this.


How to fix barber shop clippers? Routine service like changing brushes and drive levers can easily be done by the user. Greasing gear and oiling felts in Oster along with adding oil to oil ball on right side should also be done routinely. Beyond that - Send them to a professional repair place is best.


Blades not moving side to side.  Bad drive usually. Blade not fully installed on clipper is another. Motor not running will certainly do it. Too much blade tension.


Nail nipper.  That isn’t much of a question or is it just a comment? Nail nippers come in several varieties and sizes. These can be sharpened by your sharpener unless bent badly. Keep the screw tight on models with screws to keep the cutting blades close together. Most nail nippers are sharpened here at Bruce’s Sharpening for $4.00.


Oster 76 hinge misalignment?  The Oster hinges are held on by two screws. Loose screws can cause problems. Make sure they are tight.


Ceramic or steel blade better for laube speed feed clippers?  Ceramic cutters are very hard so they can stay sharp longer than steel cutters can but being hard they are also brittle and can break easily if dropped. If you don’t drop your blades then ceramic cutters ma be better for you.


Oster A5 intermittent power.  This has been covered above. Check your brushes, if nubs, replace. Power cord with a break in the wire can cause intermittent operation. A worn thrust washer can make for uneven operation. A bad switch can sometimes cause a similar problem as a bad cord. The brass contacts may not be making good contact with the switch contacts.


Surgical tools sharpen or throw away. Throw away if you have excess cash on hand and like pretty shiny new stuff, otherwise sharpening is much cheaper and can improve cutting action over new often. The better quality instruments should always be sharpened; some of the lower quality ones may be problematic depending on their condition.


What is the best way to protect the cords of a clipper from not breaking when storing it?  Don’t over bend the cord especially where it comes out of the clipper. Use ties or rubber bands if you have to to keep in place.


I took screws out and now hair clipper will not go back together.  There are photo’s on my site of several models of clippers. You may be able to tell what goes where from them. Alternately keep everything together in a zip bag and send out for repair. Before you take anything apart you should take photo’s or make a drawing of what went where. Have a container for parts as you remove them. Cross your fingers.

Enter content here

Enter content here

Enter content here

Enter content here

Enter supporting content here