KNOWN INFO
TEST OPTIONS
Visual Inspection
9.
YES
Go to step 10
of this fault.
NO
Is air present at cab
leveling valve tee fitting
input port?
If air is present, cab leveling
valve tee fitting is faulty.
Replace cab leveling
valve tee fitting (para 16-8).
CTIS operates.
Air hoses free from kinks and
leaks.
Variable control check valve
OK.
Air hose 503 OK.
Air hose 522 OK.
Cab leveling valve OK.
Air spring cylinders OK.
Air hoses 504 and 505 OK.
POSSIBLE PROBLEMS
Faulty cab leveling valve tee
fitting.
Faulty air hose 506.
Faulty air/hydraulic manifold.
Faulty pressure protection
valve.
Faulty air hose 501.
TM 9-2320-365-20-2
2-1974.12 Change 1
t3. CAB LEVELING AIR SPRINGS DO NOT OPERATE (CONT)
REASON FOR QUESTION
