TM 9-4940-568-34
3-121
3-36. CRANE CONTROL VALVE REPLACEMENT
THIS TASK COVERS:
a. Removal
b. Installation
INITIAL SETUP
Tools
Tool Kit, General Mechanic’s
(Item 67, Appendix F)
Materials/Parts
Gasket (5) (Item 118, Appendix E)
Equipment Condition
FRS unloaded, (TM 9-4940-568-10).
Batteries disconnected, (TM 9-4940-568-10).
Crane electric solenoid valve removed,
(para 3-37).
a.
Removal
The FRS hydraulic system
operates at oil pressure up
to 3,500 psi (24, 132 kPa).
Never
disconnect
any
hydraulic line or fitting
without first dropping the
pressure to zero. Failure to
comply may result in serious
injury or death to personnel.
WARNING
NOTE
The following procedures apply
to both the crane and outrigger
control valves.
(1) Remove four screws (1) and control
valve (2).
NOTE
Performed packing may stay with
manifold or come off with valve.
(2) Remove control valve (2) and five
preformed packings (3) from valve
manifold (4). Discard preformed
packing.
1
4
2
3
