Specifications

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3BUS 208 000 R1301180 Maintenance Procedures
Drive Motor Belt Inspection
Refer to Figure 9-3.
1. Inspect the upper and lower drive belts for evidence of wear or damage.
2. If either the upper or lower drive belt exhibits serious cracks, replace both drive
belts. Replacing both belts will prevent uneven wear of the belts. Cracks may
indicate a future failure of the drive belt.
3. Inspect the tension of the drive motor belt by pressing it with your finger. If a
deflection greater than 0.25 in. (6 mm) occurs, adjust the drive motor position.
Drive Motor Adjustment
1. Loosen the four drive motor/gear box mount adjustment bolts.
2. Slide the assembly away from the drive shaft to tighten the belt.
3. Tighten the assembly while keeping tension on the belt. The assembly should
remain parallel to the drive shaft at all times.
4. Inspect the drive motor belt for evidence of wear and cracks.
5. Replace belts that have evidence of wear or cracks.
Note: A spare belt can be attached to the shaft with tie wraps or heavy-
duty tape to make future service easier.
Figure 9-3 Drive Motor Belt Check and Adjustment
Adjustment
Drive Motor
Gear Reducer
Assembly
Adjustment
Bolts