TM-9-2320-279-34-3

M977 SERIES, 8x8 HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS DIRECT SUPPORT AND GENERAL SUPPORT, VOLUME 3 OF 3

TM-9-2320-279-34-3 - Page 394 of 717

TM 9-2320-279-34-3

Power Takeoff (PTO) and Hydraulic Pump Maintenance Instructions (Cont)

19-3.

HYDRAULIC PUMP REPAIR (CONT).

(8)

Install shaft seal (9) in front cover (10).

(9)

Place front cover (10) in vise, inside

facing up.

NOTE

Model B pump has preformed packing. Do

step

(9.1)

for Model B.

(9.1)

Install preformed packing (10.1) on front

cover (10).

(10)

Install seal gland (11) and seal retainer (12)

with flat side facing up.

(11)

Aline notches and install rear assembly (13)

on front cover (10).

(12)

Install four long screws (14), four short

screws (15), and eight lockwashers (16).

Tighten screws to 55 to 65 lb-ft (75 to

88 N•m).

(13)

Use suitable socket and torque wrench

to turn drive. If tightness exceeds 35

lb-in. (4 N•m), disassemble and repair

hydraulic pump (17).

d. Follow-on Maintenance.

None.

END OF TASK

19-16

Change 3