TM 10-3930-675-20-2
0070 00-2
ALTERNATOR DRIVE BELT MAINTENANCE - CONTINUED
0070 00
INSTALLATION
CAUTION
Do not roll drive belt over pulley or pry on drive belt with tools. Rolling or prying on belt can cause damage
and shorten life of belt.
NOTE
Ensure sufficient slack adjustment has been allowed to install drive belt.
1.
Install drive belt (4).
2.
Position alternator (7) to remove slack in drive belt (4) and tighten adjusting link retaining screw (3) to hold alternator in
place.
3.
Turn adjusting screw (1) clockwise to increase belt tension and tighten jamnut (2) (Refer to Adjustment).
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).
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).
1
2
3
4
5
6
7
