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Page Title:
PARKING BRAKE DOES NOT RELEASE (cont) |
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 TM 9-2320-366-20-2
i3. PARKING BRAKE DOES NOT RELEASE (CONT)
WARNING
Read WARNING
KNOWN INFO
TEST OPTIONS
on following page.
2.
Visual Inspection
Air tanks pressurized.
Gladhands OK.
Is air present at SYSTEM
REASON FOR QUESTION
PARK air supply valve port?
POSSIBLE PROBLEMS
SYSTEM PARK air supply valve
cannot be tested if no air is
Faulty air hose 107.
present at supply port.
Faulty park control two-way
check valve.
Faulty SYSTEM PARK air
supply valve.
NO
Faulty air hose 103.
Faulty air hose 109.
Faulty two-way check valve.
Faulty air hose 119.
Faulty inversion valve.
YES
Go to step 11 of this fault.
Faulty air hose 221.
Faulty anti-compounding
valve.
Faulty air hose 231.
2-1880
Change 2
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