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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
3.
Visual Inspection
Air tanks pressurized.
Is air present at delivery
Gladhands OK.
REASON FOR QUESTION
port of SYSTEM PARK air
Air hose 107 OK.
supply valve?
Park control two-way check
No air present at delivery port
valve OK.
indicates faulty SYSTEM PARK
air supply valve.
POSSIBLE PROBLEMS
Faulty SYSTEM PARK air
NO
supply valve.
Faulty air hose 103.
Faulty air hose 109.
Faulty two-way check valve.
Faulty air hose 119.
Faulty inversion valve.
Replace SYSTEM PARK
YES
Faulty air hose 221.
air supply valve (para 11-20).
Faulty anti-compounding
valve.
Faulty air hose 231.
2-1882
Change 2
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