I recently bought a 988 but the parking is dragging or not releasing all the way. I'm look for any information on adjustment and how the system operates
For something from that era the online system contains little in the way of useful information. You may be better trying to get hold of a Service Manual. The Publication reference is REG00550. Here's a link to one on eBay If your S/N is below 87A2385 the manual will be different to the one I linked above.
87A7143 is my S/N
If I could find a way to disable the parking brake would be a big help i need to get it moved asap
In that case that manual will work. Hopefully someone else can remember how this brake system operates. The last time I was around an 87A machine was 40 years ago.
I'm currently looking for the release bolts size and length
Can you rig up a porta-power to charge the circuit?
1/2" NC x 4-1/4" long from what I can see.
I do have a manual for one of these machines if that can help. Been a few decades since I worked on on but did many times over the years. Actually worked on a couple that had the drum parking brake that was before those "modern" multi-disk brake styles!
It seems to be charging fine just low pressure
Thanks
Have you ever caged one before or is there a way to bypass it that you remember