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Author Topic: Bypass Air Tank to Move 4905  (Read 8082 times)

Offline FloridaCliff

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Bypass Air Tank to Move 4905
« on: April 05, 2024, 08:43:01 AM »
Need to move 4905 with no motor.  Found a leak in front tank and need a work around. Could I plumb air straight to the input side of park brake by driver just to release brakes? 
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1975 GMC  P8M4905A-1160    North Central Florida

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Offline Van

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Re: Bypass Air Tank to Move 4905
« Reply #1 on: April 05, 2024, 11:07:16 AM »
Plug your lines in the rear, air some shop air or portable air compressor then move. ;)
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Offline FloridaCliff

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Re: Bypass Air Tank to Move 4905
« Reply #2 on: April 06, 2024, 01:59:30 AM »
Van, yeah, thats how I would do it but there is a leak in the front air tank.  I ended up feeding the supply directly into the output of the park release.
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1975 GMC  P8M4905A-1160    North Central Florida

"There are basically two types of people. People who accomplish things, and people who claim to have accomplished things. The first group is less crowded."
Mark Twain
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