16-87. M1089 PAY-OUT HYDRAULIC MOTOR RELIEF VALVE REPLACEMENT
This task covers:
d. Follow-On Maintenance
Engine shut down (TM 9-2320-366-10-1).
Hydraulic reservoir supply valve and return valve
closed (TM 9-2320-366-10-2).
Stiffleg lowered (TM 9-2320-366-10-2).
Underlift lowered (TM 9-2320-366-10-2).
Tools and Special Tools
Tool Kit, Genl Mech (Item 78, Appendix B)
Wrench, Torque, 0-200 lb-in. (Item 93, Appendix
Pan, Drain (Item 43, Appendix B)
Tools and Special Tools (Cont)
Wrench, Torque, 0-175 lb-ft (Item 92, Appendix B)
Wrench Set, Crowfoot, Ratchet (TM 9-2320-366-
Cap and Plug Set (Item 17, Appendix C)
Nut, Self-Locking (2) (Item 177, Appendix F)
Cap or plug hydraulic connections and fittings
to prevent contamination of hydraulic system.
Failure to comply may result in damage to
Tag hydraulic connections and connection points
prior to disconnecting.
Left and right side relief valves are removed the
same way. Left side shown.
(1) Position drain pan under relief valve (1).
(2) Disconnect two hydraulic hoses (2) from fitting (3) and
45 degree fitting (4).
(3) Remove two self-locking nuts (5), washers (6), and
screws (7) from relief valve (1).
(4) Remove relief valve (1) from tool box support assembly