TM-9-2320-272-23-2
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 2 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-2 - Page 1127 of 1417
INSTALLATION AND ADJUSTMENT - Continued
3.
Tighten screw (Figure 4, Item 2) on adjusting link (Figure 4, Item 1) 15 to 20 lb-ft (20 to 27 N·m).
4.
Tighten screw (Figure 4, Item 3) on adjusting link (Figure 4, Item 1) 25 to 31 lb-ft (34 to 42 N·m).
M9806DAA
1
2
3
4
5
Figure 4.
Alternator Drivebelts Installation.
5.
Using belt tension gauge (Figure 5, Item 2), check for proper tension. Tension of new belts (Figure 5, Item 1)
should be 95 to 105 lb-ft (423 to 467 N·m). Tension of used belts should be 85 to 95 lb-ft (378
to
422
N·m).
Replace belts if they cannot be adjusted.
M0174DAA
1
2
Figure 5.
Alternator Drivebelts Installation.
6.
Tighten two screws (Figure 4, Item 4) on mounting bracket (Figure 4, Item 5) 39 to 49 lb-ft (53 to 66 N·m).
END OF TASK
TM 9-2320-272-23-2
0302
0302-4
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