TM 10-3930-675-24-2
ALTERNATOR DRIVE BELT MAINTENANCE - CONTINUED
0071 00
ADJUSTMENT
NOTE
Belt tension for new alternator drive belt should be 140 lb-ft (190 Nm). For a used belt, adjust-
ment range on belt tension is 60-110 lb-ft (81-149 Nm).
A drive belt which has been in service more than 10 minutes is considered a used belt.
1.
Measure belt tension with gage (8). If measurement is within specified range, no adjustment is required. If measurement
is not as specified, proceed to next step.
2.
Loosen jamnut (2).
8
3
2
1
NOTE
Turn adjusting screw clockwise to increase tension. Turn adjusting screw counterclockwise to decrease tension.
3.
Turn adjusting screw (1) to obtain correct tension. Tighten jamnut (2).
4.
Tighten retaining screw (3) to 60 lb-ft (81 Nm).
5.
Tighten alternator mounting screw (5) and locknut (6) to 35 lb-ft (47 Nm).
6.
Turn master battery switch to ON position.
7.
Start engine (TM 10-3930-675-10) and run for approximately 10 minutes. Shut engine down and check belt tension.
Readjust belt tension as required.
8.
END OF WORK PACKAGE
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