KNOWN INFO
NO
YES
Replace air/hydraulic
manifold (para 19-4).
13.
Go to step 14
of this fault.
Is 2,500-4,000 psi
(17,238-27,580 kPa)
present at port P2?
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.
Air hose 520 OK.
POSSIBLE PROBLEMS
Faulty back-up hydraulic pump.
Faulty hydraulic hose 521.
Faulty air/hydraulic manifold.
TEST OPTIONS
Pressure Test or
STE/ICE-R Test #51
REASON FOR QUESTION
If 2,500-4,000 psi (17,238-
27,580 kPa) is present,
air/hydraulic manifold is faulty.
TM 9-2320-366-20-3
2-2228.14
Change 1
u1. CAB TILT, SPARE TIRE RETAINER, AND SUSPENSION COMPRESSION DO
NOT OPERATE (CONT)