KNOWN INFO
Air tanks pressurized.
POSSIBLE PROBLEMS
TEST OPTIONS
Visual inspection
REASON FOR QUESTION
WARNING
Read WARNING
on following page.
i3. PARKING BRAKE DOES NOT RELEASE (CONT)
2.
Is air present at SYSTEM
PARK air supply valve port?
SYSTEM PARK air supply valve
cannot be tested if no air is
present at supply port.
Faulty air hose 107.
Faulty park control two-way
check valve.
Faulty SYSTEM PARK air
supply valve.
Faulty air hose 103.
Faulty air hose 109.
Faulty two-way check valve.
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
2-1646 Change 1
NO
Go to step 11 of this fault.
YES
