noisy capstan on JH-16

[Mailliw]

Hi,

Its an 8-track 1" JH-16 with JH-100 transport. It hasn't been used for a year and the capstan was slightly noisy then.

I tried it today and its really noisy. Anyone have experience lubing it/changing bearings?

Some google hits said it can be tricky so don't bother doing it yourself, pfft!

On another note, the 18-pin transport power connector coming from the JH-114 power supply is in bad shape, is that an impossible item to find? Its made by BEAU.

Thanks,
William

 

[SSLtech]

I think that the connector is a Cinch/Jones, you should be able to find a replacement.

The bearings, well I've had one go bad, you can remove the motor yourself, but -honestly- unless you're a motor expert, I would NOT try and replace the capstan bearings. By all means take the motor out and send it off for someone else to do. -This is the same as the JH24 and JH110, with the cream-coloured ceramic shaft, -right?

Try precision morotworks, Athan Corporation, JRF electronics or AMP services. Remember, the slightest off-center alignment on the capstan shaft will result in flutter on EVERYTHING. Best by far to send it to a place that does it for a living and can check concentricity, runout and give it a general look-over. A couple of the places I mentioned are highly recommended, all should be capable. You won't save that much doing it yourself, and you could mess things up disproportionally.

Keith

 

[Mailliw]

Yes its the white-ceramic shaft.

I'm no motor expert, thats for sure. I appreciate the information, I think I will try to fix it myself though, its in my nature and I cannot fight it

I have been warned.

 

[Scenaria]

I had a similar problem with a JH110 8 track 1 inch..

pulled the capstan motor, cleaned up the brushes and the stator? or whatever that things is the brushes ride on... readjusted them and it worked perfect..

 

[Mailliw]

Scenaria,

I'd like to probe your brain if you don't mind...

I took out the capstan motor and its a Torque Systems MH-3210-040A

the top bearing is a German-made roller-element bearing and the inner ring is very rusty, I'm pretty sure the squeaking comes from that bearing

I am going to try and pull off the metal cap and regrease it, see if that helps

Any of that sound familiar?

Oh and if I spin the shaft in the CW direction, I get the horrible squeak
I am looking to cure. In the CCW direction, it makes a clicking sound, Im hoping thats normal, maybe something in the tach on the bottom.

 

[SSLtech]

Careful!!!

That is NOT designed to be reversible... If it's a brushed motor, running backwards might not be doing it any favours.

Keith