Motorhome Air Parking Brake Not Releasing
Our MH is a 2001 Rexhall Vision DP with a 260 HP Cummins ISB engine. It has hydraulic brakes with electric assist, and an air compressor and tank which is used for the parking brake and the four airbags. There are no air pressure gauges.
A few days ago, after driving the MH a ways, I stopped for a minute and set the parking brake. Later when I released the parking brake, it acted like the parking brake was still partially set, it was very hard to drive away and the air compressor came on and stayed on like there is an air leak somewhere. However, when the parking brake is set, the airbags do fill and the compressor shuts off normally. It's only when releasing the parking brake that the compressor comes back on and stays on (meaning it never gets to its operating pressure) and the parking brake acts like it didn't get released. Releasing the parking brake doesn't sound as loud as before, also indicating the pressure isn't as high as it should be.
I don't think I want to drive it to the shop like this, even if I can, so I'm thinking I want to manually disconnect the parking brake first but I don't know how that's done and I don't have any manuals showing how it's done.
I called the Spartan Customer Service Center and got them to send me the attached PDF diagram of the transmission-mounted parking brake, but I still can't figure out how to manually release the brake. Does anyone have any ideas?
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- Rolf Salhus
2001 Rexhall Vision DP
2007 Saturn ION
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