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 TM 9-2320-366-20-3
z2. CAB DOES NOT LOWER (CONT)
WARNING
Read WARNING
KNOWN INFO
TEST OPTIONS
on following page.
2.
Pressure Test or
Air/hydraulic power unit oil
STE/ICE-R Test #51
Is 2,500-4,000 psi
level OK.
REASON FOR QUESTION
(17,237-27,580 kPa)
Air/hydraulic power unit primed.
present at CAB LOWER
Hydraulic and air hoses OK.
If 2,500-4,000 psi (17,237-
output port?
Air tanks charged.
27,580 kPa) is not present,
Hydraulic oil filter OK.
hydraulic manifold CAB TILT
Other hydraulic manifold
valve is faulty. If 2,500-4,000
functions OK.
psi (17,237-27,580 kPa) is
Orifice filter OK.
present, cab hydraulic cylinder
Orifice screw OK.
is faulty.
POSSIBLE PROBLEMS
NO
Faulty hydraulic manifold CAB
TILT valve.
Faulty cab hydraulic cylinder.
Repair hydraulic manifold CAB TILT
YES
valve (para 19-4).
Replace cab hydraulic cylinder (para 19-11).
Change 1
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