KNOWN INFO
TEST OPTIONS
Visual inspection
REASON FOR QUESTION
i3. PARKING BRAKE DOES NOT RELEASE (CONT)
3.
POSSIBLE PROBLEMS
Is air present at delivery
port of SYSTEM PARK
air supply valve?
No air present at delivery port
indicates faulty SYSTEM PARK
air supply valve.
Air tanks pressurized.
Air hose 107 OK.
Park control two-way check
valve OK.
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
2-1648 Change 1
NO
Replace SYSTEM PARK
air supply valve (para 11-18).
YES