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 565 of 985

TM 9-2320-279-20-1

Cooling System Maintenance Instructions (Cont)

6-16.

FAN BELT ADJUSTMENT.

This task covers:

a. Adjustment

b. Follow-on Maintenance

INITIAL SETUP

Models

All

References

None

Test Equipment

None

Special Tools

Gage, belt tension J23600

Supplies

None

Personnel Required

MOS 63S, Heavy wheel vehicle mechanic

Equipment Condition

TM or Para

Condition Description

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

TM 9-2320-279-10 Engine side panel

removed.

Special Environmental Conditions

None

General Safety Instructions

None

a.

Adjustment.

(1)

Loosen four screws (1) on bracket (2).

NOTE

Adjust one belt to get proper tension for all

three belts.

(2)

Adjust belts (3) using belt tension gage

to 70 to 90 lb (310 to 400 N).

(3)

Turn adjustment screw (4) clockwise to

tighten belt tension, counterclockwise to

loosen.

(4)

Tighten four screws (1).

b.

Follow-on

Maintenance.

Install engine

side panel (TM 9-2320-279-10).

END OF TASK

Change

3

6-49