Question about Oster Golden A5 2-Speed Universal Motor Clipper 78005-140

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Oster Clipper Bakelite Gear Keeps Stripping

Every new Bakelite gear I put into my two speed Golden Oster keeps stripping within one groom. I have no idea what's doing this. Oster company is of no help-have emailed and called numerous times. Do I trash the Oster and buy another brand or can I fix this? Any help is appreciated. (This clipper is only two years old.)

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You probably know this, but I'll mention it anyway. The bakelite gear for the A5 one-speed has 21 teeth. The bakelite gear for the 2-speed has 20 teeth. If you have the wrong one, I imagine that it would cause a problem. Both are sold on Amazon under Oster Clipper Parts.
I would take the gear out and turn it over and count the teeth. If you have 20, then something else is wrong.
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Posted on Sep 29, 2009

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Your armature feed threads are most likely worn. This will continue to wear gears out unless the armature is replaced. Any Oster factory service center such as ourselves should be able to help. John, Shavers World. 313-534-0736

Posted on Aug 15, 2009

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1 Answer

My Oster clipmaster clippers are doing a poor job and then out of the blue they will work great and then back to poor for no reason.


in a oster variable speed clipmaster clipper there is a clip that keeps the switch in place. How do you put it in?

Jan 31, 2010 | Oster Golden A5 1-Speed Universal Motor...

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Motor burnt out on oster A5 clippers. Are replacement motors available and if so how much are they please?


It sounds like you know pretty well what you're doing and mainly just need parts then. I suggest clipperparts.com. They are the kings of clipper parts and very knowledgeable if you need a little extra help

Jan 19, 2010 | Oster Golden A5 1-Speed Universal Motor...

1 Answer

Where do you grease and oil clippers at?


The cover plate is the part with two screws that has the name and other info on it. If you remove the two screws and the plate, you will see a nylon part that moves the blade back and forth--that is the lever. The other end of the lever, with a hole in it, is connected to a metal part called the link. Both parts are easily removed by simply pulling them upward from the device (if they are worn, they should be replaced. They, and the Bakelite gear, are available from various dealers through Amazon under Oster Parts). The bakelite gear is the part that the link sits on (the larger hole in the link). It too can be simply pulled up off the metal shaft that it rides upon (careful not to lose the washer under it). Check it for worn or missing teeth.
If you don’t have a tube of oster grease, a good white lithium grease is recommended in light application for the gear and the shafts (lever and gear shafts and armature gear). Also, the gear shaft has a hole down its middle (and two small holes that lead to the outside of the shaft. The shaft should be filled with grease so that grease can get through those small holes to lubicate the inside of the bakelite bearing. The small pads on each side of the lever (in the case) are oiled, not greased.
The bearings for the Oster are sleeve bearings that require oil (the one closest to the blade is served by the oil port; the little round chrome looking thing with the spring loaded ball in it). The other end is more difficult and would require disassembly, at which time it probably should be replaced.
Oster clippers, by the way, are known for getting pretty warm. Oster blade wash will help with that, as well as oiling the blades.
Hope this helps you.

Nov 20, 2009 | Oster Golden A5 2-Speed Universal Motor...

1 Answer

Oster A5 clippers are slow and vibrating noisily even without a blade attache. Any ideas what could be wrong with them please as I have a dog only half clipped at the moment. Thanks


If the nylon lever (the tab that moves the blade back and forth) is not moving with the blade off, or only moving sometimes, chances are that you have a stripped bakelite gear. Take the two screws out of the cover plate and remove it. Remove the lever (the nylon part that moves the blade) Remove the link (the metal part that the lever connects with). Remove the bakelite gear (the part that the link fits down over). You should then be able to see if the teeth are chewed or worn off to the point that the armature gear will not turn the bakelite gear. If that is the case, replace the gear. Amazon carries both single speed and 2 speed gears under Oster A5 clipper parts. All these parts should have a light coat, where they move, of lithium grease, and the two pads (one on each side of the lever) should be oiled. You might also check the condition of your brushes (under the caps on each side of the clipper. Take cap off, remove cover from brush, remove spring and brush to see how worn they are).
Good luck.

Aug 10, 2009 | Oster Golden A5 2-Speed Universal Motor...

2 Answers

Bought Oster Golden A5 clippers new but did not


There is a small gun-metal colored bar at the very rear, just below the back of the blade. It pushes inward, in the direction of the blade. Push it firmly in and pull up on the teeth of the blade. It should pop upward. You can then remove the blade from the tongue that it sits upon. When you want to put it back, slide the blade back on the tongue, then, WITH THE MOTOR TURNED ON, push the blade down to its seated position. It will click into place.
Terms regarding these devices are all too often assumed as understood. For most purposes, these are what you have to know for the A5 Oster. The cover plate is the part with two screws that has the name and other info on it. If you remove the two screws and the plate, you will see a nylon part that moves the blade back and forth--that is the lever. The other end of the lever, with a hole in it, is connected to a metal part called the link. Both parts are easily removed by simply pulling them upward from the device. The bakelite gear is the part that the link sits on (the larger hole in the link). It too can be simply pulled up off the metal shaft that it rides upon (careful not to lose the washer under it). That gear is turned by the armature gear of the motor (which is where things get much too involved to cover here, but from that point on the device very rarely has problems). Incidentally, the lever, the link, and the gear can all quite simply be replaced. They are available quite inexpensively at Amazon under Oster A5 Clipper parts (note that the one speed and the two speed take different bakelite gears, but the lever and the link are the same). If you were to replace parts such as these or simply lubricate them, remember that a good white lithium grease is recommended in light application for the gear and the shafts (lever and gear shafts and armature gear). Also, the gear shaft has a hole down its middle (and two small holes that lead to the outside of the shaft. The shaft should be filled with grease so that grease can get through those small holes to lubicate the inside of the bakelite bearing. The two pads (one on each side of the lever) should be oiled. The simple way to tell if you need to replace parts is to grip the blade end of the lever while all parts are in place and try to move it back and forth, as though it were running the blade. If there is any more than the slightest movement, replace the lever (replace that anyway if the part that contacts the blade is rounded off) link and gear.
Good luck.

Jul 30, 2009 | Oster Shavers

1 Answer

Fixable A5 Clippers?


If the power lever (the tab that moves the blade back and forth) is not moving with the blade off, or only moving sometimes, chances are that you have a stripped bakelite gear. Take the two screws out of the cover plate and remove it. Remove the lever (the nylon part that moves the blade) Remove the link (the metal part that the lever connects with). Remove the bakelite gear (the part that the link fits down over). You should then be able to see if the teeth are chewed or worn off to the point that the armature gear will not turn the bakelite gear. If that is the case, replace the gear. Amazon2.gif carries both single speed and 2 speed gears under Oster A5 clipper parts. All these parts should have a light coat, where they move, of lithium grease, and the two pads (one on each side of the lever) should be oiled. You might also check the condition of your brushes (under the caps on each side of the clipper. Take cap off, remove cover from brush, remove spring and brush to see how worn they are).
Good luck.

Jun 03, 2009 | Oster Golden A5 1-Speed Universal Motor...

2 Answers

My A5 clipper is not clipping at all.


If the blade mover is going when you turn the clipper on than all you need to do is take the blades apart and clean them well with a Oster spray and then oil them. I would recommend cool lube.

May 12, 2009 | Oster Golden A5 1-Speed Universal Motor...

1 Answer

Oster showmaster clipper motor will not run


cord is still burnt out your local grooming tools repair shop will have it or they can put it on for an extra $2 

Mar 24, 2009 | Oster Golden A5 2-Speed Universal Motor...

1 Answer

Blades do not function


If the power lever (the tab that moves the blade back and forth) is not moving with the blade off, chances are that you have a stripped bakelite gear. Take the two screws out of the cover plate and remove it. Remove the lever. Remove the link (the metal part that the lever connects with). Remove the bakelite gear (the part that the link fits down over). You should then be able to see if the teeth are chewed or worn off to the point that the armature gear will not turn the bakelite gear. If that is the case, replace the gear. Amazon carries both single speed and 2 speed gears under Oster A5 clipper parts.
Good luck.

Dec 20, 2008 | Oster Golden A5 2-Speed Universal Motor...

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