KNOWN INFO
YES
NO
Is 2,500-4,000 psi
(17,238-27,580 kPa)
present at back-up hydraulic
pump return port?
Go to step 15
of this fault.
12.
Hydraulic hoses free from
leaks.
Air/hydraulic manifold filters
OK.
Hydraulic hose 515 OK.
Air/hydraulic power unit OK.
Air hose 507 OK.
Secondary air tank inversion
valve OK.
Air hose 502 OK.
Air hose 514 OK.
POSSIBLE PROBLEMS
Faulty back-up hydraulic pump.
Faulty hydraulic hose 521.
Faulty hydraulic hose 520.
Faulty air/hydraulic manifold.
TEST OPTIONS
Pressure Test or
STE/ICE-R Test #51
REASON FOR QUESTION
This question eliminates
possible problems and
determines where
troubleshooting continues.
TM 9-2320-365-20-2
2-1968.12 Change 1
t1. CAB TILT, SPARE TIRE RETAINER, AND SUSPENSION COMPRESSION DO
NOT OPERATE (CONT)
