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Belt Maintenance
Adjusting Belts
Adjusting the Alternator Belt
Service Interval: After the first 8 hours—Check
condition and tension of the
alternator belt.
Every 200 hours—Check condition
and tension of the alternator belt.
1. Check the tension by pressing the belt at mid span
between the crankshaft and alternator pulleys with
22 lb (98 N) of force. A new belt should deflect 0.3
to 0.5 inch (8 to 12 mm). A used belt should deflect
0.4 to 0.55 inch (10 to 14 mm). If the deflection
is incorrect, proceed to the next step. If correct,
continue operation.
2. To adjust belt tension, complete the following:
• Loosen the 2 alternator mounting bolts.
Figure 61
1. Alternator belt
• Using a bar, rotate the alternator until the
proper belt tension is attained, then tighten the
mounting bolts.
2. Alternator brace
Controls System
Maintenance
Adjusting the Accelerator
Pedal
1. Position the vehicle on a level surface, stop the
engine, and engage the parking brake.
2. Adjust the ball joint on the accelerator cable
(Figure 62) to allow 0.100 to 0.250 inch (2.54 to
6.35 mm) of clearance between the accelerator pedal
arm and the top of the diamond tread floor plate
(Figure 63), when a 25 lb (111 N) force is applied to
the center of the pedal. Tighten the locknut.
Note: The engine must not be running and the
return spring must be attached.
1. Accelerator cable
1. 0.100 to 0.250 inch (2.54 to 6.35 mm) clearance
Important: The maximum high idle speed is 3650
rpm. The high idle stop should not be adjusted.
46
Figure 62
2. Ball joint
Figure 63
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