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BRAKE ACTUATORS (LEFT AND/OR RIGHT REAR AND LEFT AND/OR RIGHT FRONT) DO NOT OPERATE CORRECTLY - continued - TM-10-3930-673-20-10914
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TM-10-3930-673-20-1 All Terrain Lifter Army System (ATLAS) 10 000 lb Capacity Manual
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EMERGENCY STEERING PUMP DOES NOT OPERATE. - TM-10-3930-673-20-10916
TM 10-3930-673-20-1
FRAME TILT VALVE
PRESSURE TEST
(1) Remove cover from diagnostic coupler
on brake control valve.
(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 1600
and 1700 psi (11040 and 11730
kPa) (2350 to 2450 psi [16203 to
16892 kPa] fully charged), go to
Step 7 of this fault.
(b) If hydraulic oil pressure is not at
1600 and 1700 psi (11040 and
11730 kPa) (2350 to 2450 psi
[16203 to 16892 kPa] fully
charged), shut down engine (TM
10-3930-673-10) and replace
brake control valve
(Para 0-1).
NOTE
Adjust accumulator charging pressure at
brake control valve to 1650 25 psi.
TR01282
HYDRAULIC ACCUMULATOR VISUAL
INSPECTION/PRESSURE TEST
(1) Visually inspect brake hydraulic
accumulator for signs of damage.
(a) If brake hydraulic accumulator is
not damaged, go to Step (2) below.
(b) If brake hydraulic accumulator is
damaged, replace accumulator
(Para 12-8).
(2) Shut down engine
(TM 10-3930-673-10) and remove
brake hydraulic accumulator
(Para 12-8) and test precharge
pressure in accumulator.
(a) If precharge pressure in
accumulator is at 900 psi
(6210 kPa), reinstall accumulator
(Para 12-8).
(b) If precharge pressure in
accumulator is less than 900 psi
(6210 kPa), add nitrogen; if
pressure is greater than 900 psi
(6210 kPa), bleed nitrogen from
accumulator. Reinstall accumulator
(Para 12-8).
TR01819
Change 1
2-857

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