TM-9-2320-279-20-2

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

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; ORGANIZATIONAL MAINTENANCE, VOLUME 2 OF 3

TM-9-2320-279-20-2 - Page 681 of 938

TM 9-2320-279-20-2

Cab and Body Maintenance Instructions (Cont)

16-49.2 MANHOLE COVER PRESSURE ADJUSTMENT (M978) (MODEL B).

This task covers:

a. Clearance Check

b. Adjustment

c. Follow-on Maintenance

INITIAL SETUP

Models

M978

Test Equipment

None

Special Tools

None

Supplies

None

References

None

Equipment Condition

TM or Para

Condition Description

TM 9-2320-279-10 Shut off engine.

Special Environmental Conditions

None

Personnel Required

MOS 63S, Heavy wheel vehicle mechanic

General Safety Instructions

No smoking, flame, sparks, and hot or glowing

objects within 50 ft (15 m) of vehicle.

Raise latch (1).

With closure assembly (2) firmly closed, check clearance between latch (1) and closure

assembly (2). If latch just touches closure assembly, adjustment is correct.

NOTE

If adjustment is correct, do Step (3). If not correct, adjust.

Lower latch (1) to horizontal closed position.

Change 2

18-198.3