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I could use some advise and/or decent on how to replace the capstan belt on an Akai GX-77.
I rencently picked up a NICE GX-77 from Craig's list, but found that the capstan belt was getting weak and would occasionally be thrown off.
I've been able to get ahold of the user and service manuals and a set of belts. I've torn the deck down to where all of the covers are off and such and have been able to change the belts for the reels. I am however a little puzzled on which way to go, to get after the capstan belt. I see that there's a brass stand-off for the capstan motor mounting that will have to be removed or at freed at one end to free up the capstan belt. Getting to these screws looks like a bit of an issue.
If someone has done this on this model, I'd like to know if it's better to remove the large cross member from the top that would also remove the power transformer, or come in from the back by removing the syscom board.
Any help would be greatly appreciated.
Schwenn-o
Follow Ups:
You can do it without much more disassembly. You have to get the belt around the left flywheeel. Back of the adjuster and then slip the belt over the flywheel. Re-tighten the adjuster. Both halves of the belt go under the right flywheel. To get it to the motor pulley, you have to remove one of the motor flange ount screws and loosen the other two. Then slide it around the motor pulley. I use chopsticks to help push and prod the belt where it should go. If i remember correctly the belt goes around the motor stand off. No special tools required, i did unscrew the right (logic) circuit board to access the motor mount screws.
Hoep this helps, and good luck.
Thanks for the reply....
This is the route that I ended up taking. It seemed the most logical.
Dis-mounting the Logic board without dis-connecting any lines gave adequate access to the motor screws and stand offs.
As you stated I had to remove the one screw and loosen the remaining screws to allow the belt to be slipped over the motor stand off.
I actually got this done once, but as I started hand turning the drive wheel by hand to see how the belt would track, I notice a fair amount of oil that had been picked up by the belt as it lay underneath the right flywheel. Apparently I had lubed that capstan a little too much. That all caused a great deal of clean up, as you certainly don't want you belt and wheels lubricated..... I still need to get it all back together again.
As you said, it's really not that bad, once you know a good method of gaining the access that you need.
Rather than chop sticks, I use a good set of dental picks, for that "ship in bottle" type of work required in getting the belt to go to right places...
Schwenn-o
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