TM-9-2320-272-24-1

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 1 OF 4

JUNE 1998

TM-9-2320-272-24-1 - Page 590 of 1015

TM

9-2320-272-24-1

Alternator is heavy. Assistant will help with alternator

installation. Failure to do so may result in injury to personnel.

1.

Install mounting bracket (7) on engine (8) with four new lockwashers (9) and screws (10).

2.

Install alternator (12) on mounting bracket (7) with two screws (11), washers (6), and new locknuts (5).

Finger tighten locknuts (5).

NOTE

Ensure wire connecting points are thoroughly cleaned before

connections are made.

3.

Install wire (29) on alternator (12) with washer (30), new lockwasher (31), and nut (32). Tighten nut (32)

45-55 bin. (5-6 N•m).

4.

Install wire (23) on alternator (12) with washer (22), new lockwasher (21), and nut (20). Tighten nut (20)

20-25 lb-in. (2-3 N•m).

5.

Connect connector (24) to alternator (12).

6.

Install wire (26) on alternator (12) with new lockwasher (27) and screw (28). Tighten screw (28)

82-102 lb-in. (9-12 N•m).

NOTE

Wires are held in place with strap.

7.

Install wire retaining strap (15) on alternator (12) with two new lockwashers (16) and screws (17).

8.

Install washer (3) and adjusting link (13) on alternator (12) with screw-assembled washer (4),

washer (2), new lockwasher (1), and screw (14).

9.

Seal wires (29) and (23) and connectors with gasket sealant.

10.

Install terminal cover (18) on alternator (12) with two new screw-assembled lockwashers (19).

11.

Install new tiedown strap (25) on alternator wires.

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