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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)
KNOWN INFO
TEST OPTIONS
5.
Visual Inspection
Air tanks pressurized.
Is air present at supply port
Gladhands OK.
REASON FOR QUESTION
of two-way check valve?
Air hose 107 OK.
Park control two-way check
Two-way check valve cannot
Air hose 103 OK.
be tested if no air is present
at supply port.
POSSIBLE PROBLEMS
Faulty
air hose 109.
NO
Faulty
two-way check valve.
Faulty
air hose 119.
Faulty
inversion valve.
Faulty
air hose 221.
Faulty
anti-compounding
valve.
Replace air hose 109
YES
Faulty
air hose 231.
(para 11-21).
2-1886
Change 2
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