TM 9-4940-568-34
3-117
3-35. CRANE CONTROL VALVES REPAIR
THIS TASK COVERS:
a. Disassembly
b. Cleaning/Inspection
c. Assembly
d. Adjustment
INITIAL SETUP
Tools
Tool Kit, General Mechanic’s
(Item 67, Appendix F)
Materials/Parts
Hydraulic oil (Item 16, Appendix B)
Sealing compound (Item 29, Appendix B)
Packing, preformed (3)
(Item 119, Appendix E)
Seal kit (Item 157, Appendix E)
Seal, washer (Item 161, Appendix E)
Equipment Condition
FRS unloaded, (TM 9-4940-568-10).
Three function manual control valve removed
(para 3-11).
Five function electric control valve removed
(para 3-31).
Electric solenoid valves removed (para 3-37).
Special Environmental Conditions
Cleanliness is extremely important when working
on hydraulic equipment. Clean all parts before
disassembly and work in a clean area.
a.
Disassembly
NOTE
All
valve
assemblies
are
disassembled the same way.
(1) Loosen nut (1) and remove knob (2), nut
(1), and lever (3) from lever end cap (4).
(2) Remove screw (5) and seal washer (6).
Discard seal washer (6).
(3) Matchmark valve body (7), lever end
cap (4), and end cap (8).
(4) Remove four allen head screws (9),
lever end cap (4), and preformed
packing (10) from valve body (7).
Discard preformed packing.
