Engine Maintenance
72
Model 30 Belt Adjustments
Alternator Belt Adjustment
The alternator belt tension should read 67 on the
belt tension gauge.
1. Loosen the alternator pivot bolt and the
adjusting arm bolt.
2. Move the alternator on the adjusting arm slots
to adjust the belt to 67 on the belt tension
gauge.
3. Tighten the adjusting arm bolt and alternator
pivot bolt.
Upper and Lower Fan Belt Adjustment
The upper fan belt should read 74 and the lower
fan belt should read 67 on the belt tension gauge.
NOTE: Both the upper and lower fan belts are
adjusted at the same time in one procedure.
NOTE: If a fan belt is loose or damaged, replace
the belt (see “Model 30 Fan Belt Replacement”
on page 73).
1. Loosen the idler assembly pivot bolts and the
idler adjusting arm bolts.
2. Push in or pull out on the idler adjusting arm
to “center” the idler assembly between the
belts and balance the tension equally between
the upper and lower belts.
1
2
3
6
4
7
8
10
11
9
12
5
9
13
1. Upper Fan Belt 8. Lower Fan Belt
2. Condenser Fan Pulley 9. Engine Pulley
3. Condenser Fan 10. Idler Adjusting Arm Bolt
4. Condenser Inlet Ring 11. Idler Adjusting Arm
5. Idler Assembly Pivot Bolt 12. Alternator Belt
6. Idler Assembly 13 Idler Adjusting Arm Pivot Bolt
7. Belt Guide
Figure 49: Model 30 Belt Arrangement
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