thiokol 3700 park brakes

[WadeK]

Good morning! I have a 3700 with the electric park brakes the 12 volt motor fried itself out on the trail and now park brakes are stuck on any advice as to how to manually get them to release?

 

[loggah]

You can hook a portapower pump to the brake line and use that to release the brakes, if your using dextron in your hydrastat system ,make sure you use it in the portapower. you must have the first series 3700 later they used pump charge pressure and did away with the 12 volt motor.

 

[WadeK]

You can hook a portapower pump to the brake line and use that to release the brakes, if your using dextron in your hydrastat system ,make sure you use it in the portapower. you must have the first series 3700 later they used pump charge pressure and did away with the 12 volt motor.

Thanks for the reply. Ironically thats exactly how I did it right after I wrote the post. I just made a fitting to go form pota power to tee with 2 male JIC fittings on it and a 15 foot hose so I could run it from the cab. filled the hose with the dextron and away I went after a few pumps!