AKAI GXC570D

[BoomboxLover48]

I am restoring one of my GX570D deck and fixing the reel motor problems.
The take up reel motor was stopping after a 90-degree turn.

I took out the motor and cleaned up the commutator and brush. Now in the process of putting, it back together.
In the past I used synthetic oil for these motors. I have the white lithium grease also. I have both.

What would be the best for motors and also for the capstan bearings.

Let me know your thoughts.

 

[Tinman]

My 2 cents:
For capstans I've always used synthetic.
For the motors, I'd put a drop on the shaft and run it with my DC supply for a little bit then wipe the excess off.
I have a lube bottle with a long needle like dispenser on it.
I believe I use Amsoil straight 30 weight oil.

 

[AE_Stereo]

The Mechanism - Metal, Metal Everywhere!

 

[BoomboxLover48]

Success! I fixed it.
Had to open both take up reel motor and supply reel motor and clean the commutator.
Used synthetic oil for capstan bearings and motor bearings.
The main double capstan motor is a big brushless motor. It is whisper quiet!

 

[BoomboxLover48]

 

[Superduper]

Glad to see it fixed. I didn't chime in earlier but as far as oiling, most of these small motor bearings use oilite stuff. If the bearings are removeable, you can refresh them by soaking them into non-detergent 30W. Heating up the oil (but below 200*) will make the pores open up more and soak up the oil. It's not necessary to oil anything beyond that because oilite bearings release lubricant as the shaft heats up, but soak it back up when cooled down so they are pretty much maintenance free. However, do not use any grease, lithium or otherwise, as they tend to clog up the pores instead. Any oil applied beyond that will just get slung off by centrifugal force of the spinning shaft.

 

[BoomboxLover48]

Glad to see it fixed. I didn't chime in earlier but as far as oiling, most of these small motor bearings use oilite stuff. If the bearings are removeable, you can refresh them by soaking them into non-detergent 30W. Heating up the oil (but below 200*) will make the pores open up more and soak up the oil. It's not necessary to oil anything beyond that because oilite bearings release lubricant as the shaft heats up, but soak it back up when cooled down so they are pretty much maintenance free. However, do not use any grease, lithium or otherwise, as they tend to clog up the pores instead. Any oil applied beyond that will just get slung off by centrifugal force of the spinning shaft.

Great information! Thanks so much Superduper!

In most cases the sponge like dampeners on brush holder fall apart.
What would you suggest as a replacement option?