KNOWN INFO
YES
NO
7.
Is air present at PUMP CYL
port?
Replace air hose
507 (para 23-3).
Hydraulic hoses free from
leaks.
Air/hydraulic manifold filters
OK.
Hydraulic hose 515 OK.
Air/hydraulic power unit OK.
Hydraulic hose 514 OK.
Back-up hydraulic pump OK.
Hydraulic hose 521 OK.
Hydraulic hose 520 OK.
Faulty air hose 507.
Faulty secondary air tank
inversion valve.
Faulty air hose 502.
Faulty air/hydraulic manifold.
POSSIBLE PROBLEMS
Go to step 8
of this fault.
If air is present, air hose 507
is faulty.
REASON FOR QUESTION
TEST OPTIONS
TM 9-2320-365-20-2
2-1968.2 Change 1
t1. CAB TILT, SPARE TIRE RETAINER, AND SUSPENSION COMPRESSION DO
NOT OPERATE (CONT)
Visual Inspection