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 372 of 717

TM 9-2320-279-34-3

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

(17)

Remove clutch spring (31) and piston (32)

from backup cylinder (28).

(18)

Remove preformed packing (33) from

piston (32).

NOTE

There are two models of power takeoff (PTO) units.

Model B does not have a ball. Skip step (19) and do

step (19.1) for Model B.

(19)

Remove ball (34) and wiggler wire (35).

(19.1)

Remove wiggler wire (35).

(20)

Remove eight friction plates (36) and

seven steel plates (37) from inner clutch

gear (29).

(21)

Remove retaining ring (38) and two

preformed packings (39) from output

shaft (23).

Change 3

19-5