KNOWN INFO
TEST OPTIONS
Visual inspection
REASON FOR QUESTION
i3. PARKING BRAKE DOES NOT RELEASE (CONT)
Is air present at supply
port of inversion valve?
Inversion valve cannot be
tested if no air is present at
supply port.
7.
Air tanks pressurized.
Air hose 107 OK.
Park control two-way check
valve OK.
Air hose 103 OK.
Air hose 109 OK.
Two-way check valve OK.
POSSIBLE PROBLEMS
Faulty air hose 119.
Faulty inversion valve.
Faulty air hose 221.
Faulty anti-compounding
valve.
Faulty air hose 231.
TM 9-2320-365-20-2
2-1656 Change 1
NO
Replace air hose 119
(para 11-19).
YES
