Drive Belt: Testing and Inspection

INSPECTION
1. Check the drive belts for wear, cracks or fraying.
2. Replace if necessary.
3. Verify that the drive belts are correctly mounted on the pulleys.
4. Check the drive belt deflection by applying moderate pressure (22 lb [98 N]) midway between the pulleys.

NOTE:
a. Measure the belt deflection between the specified pulleys.
b. A belt is considered "new" if it has been used on a running engine for less than five minutes.
c. Check the belt deflection when the engine is cold or at least 30 minutes after the engine has stopped

Generator
NEW 0.24-0.31 inch (6-8 mm)
USED 0.27-0.35 inch (7-9 mm)
P/S
NEW 0.31-0.39 inch (8-10 mm)
USED 0.35-0.43 inch (9-11 mm)
A/C
NEW 0.27-0.35 inch (7-9 mm)
USED 0.31-0.39 inch (8-10 mm)

5. If the deflection is not correct, adjust the belt.