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Page Title:
FRAME TILT CYLINDER DOES NOT EXTEND OR RETRACT - continued |
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 TM 10-3930-673-20-1
TANDEM GEAR PUMP
PRESSURE TEST
(1) Remove cover from diagnostic coupler
on small section of tandem gear pump.
(2) Perform STE/ICE Test #51
(TM 9-4910-571-12&P).
(3) Read output pressure on test device.
(a) If hydraulic oil pressure is at 2600
to 2700 psi (17927 to 18616 kPa),
go to Step 5 of this fault.
(b) If hydraulic oil pressure is not at
2600 to 2700 psi (17940 to
18630 kPa), shut down engine
(TM 10-3930-673-10) and test and
replace tandem gear pump
(Para 18-3).
FRAME TILT/BRAKES RELIEF VALVE
PRESSURE TEST
(1) Install test tee on inlet line to frame tilt/
brakes relief valve.
(2) Connect 0 to 5000 psi (0 to 34475 kPa)
pressure gage to test tee.
(3) Read output pressure on test device.
(a) If hydraulic oil pressure is at 2600
to 2700 psi (17940 to 18630 kPa),
go to Step 6 of this fault.
(b) If hydraulic oil pressure is not at
2600 to 2700 psi (17940 to 18630
kPa), go to Step (4) below.
(4) If valve is not damaged, adjust relief
pressure to specified psi and remove
pressure gage and test tee.
(a) If hydraulic oil pressure is adjusted
to specified psi, go to Step 6 of this
fault.
(b) If hydraulic oil pressure cannot be
adjusted, replace relief valve (Para
18-8).
TR01277
Change 1
2-847
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