TM-9-2320-366-34-3

M1083 SERIES, 5 TON, 6x6, MEDIUM TACTICAL VEHICLES (MTV)

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE; VOLUME NO. 3 OF 4

AUGUST 2005

CHANGE 2

TM-9-2320-366-34-3 - Page 796 of 1178

TM 9-2320-366-34-3

16-538

Change 2

16-87.

M1089 PAY-OUT HYDRAULIC MOTOR RELIEF VALVE REPLACEMENT

This task covers:

a. Removal

b. Disassembly

c. Assembly

d. Installation

e. Adjustment

f.

Follow-On Maintenance

INITIAL SETUP

Equipment Conditions

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

B)

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 9-2320-366-20)

Materials/Parts

Preformed Packings (2) (Item 237 Appendix F

Cap and Plug Set (Item 17, Appendix C)

Nut, Self-Locking (2) (Item 177, Appendix F)

Sealant (Item 65.1 Appendix C).

Personnel Required

(2)

a. Removal.

(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).

Discard self-

locking nuts.

(4)

Remove relief valve (1) from tool box support

assembly (8).

CAUTION

Cap or plug hydraulic connections and

fittings to prevent contamination of hydraulic

system.

Failure to comply may result in

damage to equipment.

NOTE

•

Tag hydraulic connections and connection

points prior to disconnecting.

Left and right side relief valves are removed

the same way.

Left side shown.