1.
TEST OPTIONS
Visual Inspection
This question eliminates
possible problems and
determines where
troubleshooting continues.
KNOWN INFO
CTIS operates.
Air hoses free from kinks and
leaks.
POSSIBLE PROBLEMS
Do cab air springs
deflate?
Faulty variable control check
valve.
Faulty air hose 503.
Faulty air hose 522.
Faulty cab leveling valve tee
fitting.
Faulty air hose 506.
Faulty air/hydraulic manifold.
Faulty pressure protection
valve.
Faulty air hose 501.
Faulty cab leveling valve.
Faulty air spring cylinder(s).
Faulty air hose(s) 504 and/or
505.
INITIAL SETUP
Equipment Condition
Engine shut down (TM 9-2320-365-10).
Personnel Required
(2)
Tools and Special Tools
Tool Kit, Genl Mech (Item 44, Appendix C)
Goggles, Industrial (Item 15, Appendix C)
References
TM 9-4910-571-12&P
TM 9-2320-365-20-2
2-1972 Change 1
t3. CAB LEVELING AIR SPRINGS DO NOT OPERATE
REASON FOR QUESTION
START
NO
YES
Go to step 5 of this fault.
