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Page Title:
BRAKE ACTUATORS (LEFT AND/OR RIGHT REAR AND LEFT AND/OR RIGHT FRONT) DO NOT OPERATE CORRECTLY - 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 (17940 to 18630 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
(small section) and replace tandem
gear pump (Para 18-3).
FRAME TILT/BRAKES RELIEF VALVE
PRESSURE TEST
(1) Install a test tee on inlet line to frame
tilt/brakes relief valve.
(2) Connect a 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 between
2350 to 2450 psi (16215 to
16905 kPa), go to Step 6 of this
fault.
(b) If hydraulic oil pressure is not
between 2350 to 2450 psi (16215
to 16905 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).
TR01281
Change 1
2-855
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