KNOWN INFO
TEST OPTIONS
YES
NO
Replace air hose
506 (para 23-3).
10.
Go to step 11
of this fault.
If air is present, air hose 506
is faulty.
Is air present at air/hydraulic
manifold BAG CYL port?
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 tee fitting
OK.
Cab leveling valve OK.
Air spring cylinders OK.
Air hoses 504 and 505 OK.
POSSIBLE PROBLEMS
Faulty air hose 506.
Faulty air/hydraulic manifold.
Faulty pressure protection
valve.
Faulty air hose 501.
TM 9-2320-365-20-2
2-1974.14 Change 1
t3. CAB LEVELING AIR SPRINGS DO NOT OPERATE (CONT)
Visual Inspection
REASON FOR QUESTION