TM 9-2320-279-34-3
Hydraulic System Maintenance Instructions (Cont)
Section Ill.
HYDRAULIC CONTROL VALVES
20-3. WINCH/AUXILIARY HYDRAULIC RELIEF VALVE REPAIR (M983, M984).
This task covers:
a. Disassembly
c. Assembly
b. Cleaning/Inspection
d. Follow-on Maintenance
INITIAL SETUP
Models
Equipment Condition
M984, M983 without crane
TM or Para
Condition Description
Test Equipment
Relief valve on clean work
None
surface.
Special Tools
Special Environmental Conditions
None
None
Supplies
General Safety Instructions
Oil, lubricating, Item 46, Appendix C
None
Solvent, dry cleaning, Item 57, Appendix C
Level of Maintenance
Personnel Required
Direct Support
MOS 63W, Wheel vehicle repairer
References
None
(7) Remove spring retaining plug (1), spring end (2), spring (3), and poppet (4) from relief valve
body (5).
(2) Remove preformed packing (6) from spring retaining plug (1).
(3) Remove preformed packing (7) and packing retainer (8) from poppet (4).
(4) Remove valve seat (9) from relief valve body (5).
(5) Remove plug (10), lockscrew (11), and setscrew (12) from spring retaining plug (1).
20-5
