TM 9-4940-568-34
6-57
6-14. HOIST, BOOM, TELESCOPE, SWING SOLENOID PILOT VALVE REPAIR
THIS TASK COVERS:
a. Disassembly
b. Cleaning/Inspection
c. Assembly
INITIAL SETUP
Tools
Tool Kit, General Mechanic’s
(Item 67, Appendix F)
Materials/Parts
Hydraulic oil (Item 16, Appendix B)
Packing, preformed (4) (Item 97, Appendix E)
Packing, preformed (2) (Item 94, Appendix E)
Equipment Condition
Hoist, boom, telescope, and swing 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 four pilot valves are
disassembled the same way.
Matchmark position of two
solenoids prior to removal.
(1) Remove two caps (1), preformed
packings (2) and solenoids (3) from
directional
valves
(4).
Discard
preformed packings.
(2) Remove two directional valves (4),
preformed packings (5), preformed
packings (6) and valve slide (7) from
solenoid valve (8). Discard preformed
packings.
1
2
3
4
5
8
7
6
4
3
2
1
5
6
