KNOWN INFO
YES
NO
9.
Hydraulic hoses free from
leaks.
Air/hydraulic manifold filters
OK.
Hydraulic hose 515 OK.
Air/hydraulic power unit OK.
Air hose 507.
Hydraulic hose 514 OK.
Back-up hydraulic pump OK.
Hydraulic hose 521 OK.
Hydraulic hose 520 OK.
Air/hydraulic manifold OK.
Faulty secondary air tank
inversion valve.
Faulty air hose 502.
POSSIBLE PROBLEMS
Replace air hose
502 (para 23-3).
Is air present at secondary
air tank inversion valve
delivery port?
Replace secondary air tank
inversion valve (para 23-4).
TEST OPTIONS
REASON FOR QUESTION
If air is not present, secondary
air tank inversion valve is
faulty. If air is present, air
hose 502 is faulty.
TM 9-2320-365-20-2
2-1968.6 Change 1
t1. CAB TILT, SPARE TIRE RETAINER, AND SUSPENSION COMPRESSION DO
NOT OPERATE (CONT)
Visual Inspection