Quantcast LEFT AND/OR RIGHT HOIST CYLINDERS DO NOT EXTEND OR RETRACT - continued - TM-10-3930-673-20-10869

 

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LEFT AND/OR RIGHT HOIST CYLINDERS DO NOT EXTEND OR RETRACT - continued - TM-10-3930-673-20-10868
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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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LEFT AND/OR RIGHT HOIST CYLINDERS DO NOT EXTEND OR RETRACT - continued - TM-10-3930-673-20-10870
TM 10-3930-673-20-1
NOTE
Relieve accumulator pressure before removing pressure hose on hydraulic joystick.
HYDRAULIC JOYSTICK CONTROL VALVE
PRESSURE TEST
(1) Place hydraulic joystick in neutral
position. Attach 3-way gage and check
pressure at "P" port on joystick.
(a) If hydraulic oil pressure is null go to
Step (2) of this fault.
(b) If not, replace joystick control valve
(Para 18-11).
(2) Place hydraulic joystick in raise
position and then in lower position.
Check pressure at input lines to main
TR01813
control valve.
(a) If hydraulic oil pressure is at 1700
to 1800 psi (11721 to 12411 kPa),
go to Step 7 of this fault.
(b) If hydraulic oil pressure is not at
1700 to 1800 psi (11721 to 12411
kPa), shut down engine (TM 10-
3930-673-10) and replace the
joystick control valve.
TR01258
Change 1
2-811

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