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 407 of 717

TM 9-2320-279-34-3

Hydraulic System Maintenance Instructions (Cont)

20-2. HYDRAULIC HAND PUMP REPAIR (M983) (CONT).

(4)

Install piston rod (4) in pump body (16).

(5)

Install nylon insert (17) in seal retainer (18).

(6)

Using seal retainer tool, install seal retainer (18).

Tighten seal retainer to 79 to 83 lb-ft (107 to

11 3

(7)

Install spring (19), preformed packing (20), and

valve poppet (21).

(8)

Install preformed packing (22) and valve seat (23).

Using valve seat tool, tighten valve seat to 90 to

100 lb-in. (10 to 11 N m).

(9)

Install two bushings (24) in pump

body (16).

(10)

Install bushing (25) in pivot arm (26).

(11)

Install pivot arm (26), pivot pin (27), and

screw (28).

(12)

Install two pivot links (29), four

washers (30), two pins (31), and cotter

pins (32).

d. Follow-on Maintenance.

None.

END OF TASK

20-4