TM-9-2320-387-24-1

TRUCK, UTILITY: S250 SHELTER CARRIER, 4X4, M1113

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE, VOLUME 1

DECEMBER 1997

CHANGE 1

TM-9-2320-387-24-1 - Page 707 of 1205

TM 9-2320-387-24-l

1 3-80. FAN DRIVE AND FAN BLADE MAINTENANCE

This task covers:

a.

Removal

b. Inspection

c.

Installation

INITIAL SETUP:

Tools

hlanual

References

General mechanic’s tool kit:

TM 9-2320-387-24P

automotive (Appendix B, Item 1)

Equipment

Condition

Special Tools

Radiator and shroud removed (optional)

Hex-head driver, 8 mm (Appendix B, Item 145)

(para. 3-62).

hlaterialearts

nlaintenance

Level

Four

lockwashers

(Appendix G, Item 206)

Unit

Sealing compound (Appendix C, Item 62)

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NOTE

l

Mark position of fan blade for installation.

l

It may be necessary to apply compressed air to clutch adapter to

disengage fan drive clutch, allowing access to socket-head screws.

1.

Using hex-head driver, remove four socket-head

screws (1) and fan drive assembly (31 from water

pump pulley (2).

2.

Remove four nuts (51, lockwashers

(61, and fan blade (7) from fan drive (8). Discard lockwashers

(6).

Inspect clutch adapter (4) and fan blade (7) for damaged threads, cracks, bent blades, or breaks. Replace

if defective.

c. Installation

1.

Align fan blade (7) on fan drive (8) and install four lockwashers

(6) and nuts (5). Tighten nuts to

26 lb-ft (35 N-m).

2.

Apply sealing compound to four socket-head

screws (1) and install fan drive assembly (3) on water

pump pulley (2) with socket-head

screws (1). Tighten socket-head

screws (1) to 45 lb-ft (61 Nom).

3-140