TM-9-2320-279-20-1
M977 SERIES, 8x8 HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)
TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; ORGANIZATIONAL MAINTENANCE, VOLUME 1 OF 3
TM-9-2320-279-20-1 - Page 115 of 985
TM 9-2320-279-20-1
Table 2-1. Unit Level Preventive Maintenance Checks and Services
Item
Interval
Item To Be
Procedure
Not Mission
No.
Inspected
Capable If:
M977 and
M985
Crane
Continued
48
Annual
Turntable
Check all turntable bearing screws for loose-
Screws will not torque to
Bearing
ness. If loose, tighten screws to 370 lb-ft
370 lb-ft (502 N°m).
Screws
(502 N°m).
M984
49
Annual
Magnetic
Remove magnetic drain plug, clean and re-
Drain
place.
Plug
M984E 1
Crane
50
Deleted
51
Annual
Swing
Check oil level at overfill hole. Add oil (GO) as
Drive
required at fill tube.
Gearbox
Change 3
2-48.17
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