AutoPark Problems 2000 Land Yacht

[Santart]

Has anyone else experienced loss of hydraulic fluid and burned parking brake which no longer works? I removed the fuse to stop the buzzer and dash light after it happened and there is an empty reservoir with fluid loss evidence on the bottom of the control box. I do not know from here how to proceed. Hydraulic fluid loss allows the spring to release and apply the brake at the rear of the transmission so I am pretty certain the brake needs relining. Do I need to remove the entire three pieces of the drive shaft to disassemble the drum? Should I add Dextron first to try to find the source of the leakage? Any hints? I have fixed most everything else myself on this rig, but this one has me baffled. Help please!

Frank

[overlander63]

Welcome to the forums.
First, go to the GM truck dealer, and buy a park brake pressure switch. Then crawl underneath and find the park brake apparatus. When you do, look for the switch you have in your hand, when you find it, and unplug the wires from it, you will probably see a bunch of fluid in the connector. Unscrew the old switch, and screw the new switch in, and plug it in. refill with hydraulic oil, crawl out from under your motor home, and start the engine, and put it in gear. If everything else is still working, the brake will release, and all you will need to do is replace the parking brake shoes, also from the dealer.
I have replaced many of them, one at a WBCCI rally when one failed coming in the gate. IIRC, the switch retailed for about $50.

[Santart]

Thanks Overlander63. I replaced the switch, refilled the fluid reservoir and was good to go except there was no parking brake function. Brought it to my local service shop and asked if the brake could be adjusted. He said as long as there was no signs of blueing from overheating, there would be a pretty good chance he could. So I left it in his hands for a few hours, and sure enough he adjusted it. I felt very fortunate to not have to replace the linings, drum and transmission shaft seal. Altogether it cost me under two hundred, but could hve gone to five or more the other way.
Frank