Download MAINTENANCE INTERVALS - Safety

174
Maintenance Section
Walk-Around Inspection
1. Loosen alternator mounting bolt (1) and jam nut
(2).
2. Turn adjusting nut (3), until the correct belt
tension is achieved.
3. Tighten the jam nut. Check that the tension of the
fan drive belt is correct. Tighten the alternator
mounting bolt.
Adjustment of Air Conditioner Belt
Illustration 252
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1. Inspect fan drive belt (1) and air conditioner belt
(2), if equipped. Check the belts for wear, fraying
or cracking. If the belts are damaged, replace
the belts. Never replace a single fan drive belt,
as the new fan drive belt will quickly break under
all the load.
2. Apply a 110 N (24.7291 lb) load to the fan
drive belt. This load should be applied midway
between the fan drive pulley and the alternator
pulley. A correctly adjusted belt set will deflect
15 to 20 mm (.6 to .8 inch). If necessary, adjust
the belt tension.
Illustration 254
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1. Loosen the following bolts: (1), (2), and (3).
2. Use square drive hole (4) in the bracket and pull
the compressor outward in order to increase the
belt tension. Tighten bolts (1) and (2).
Fan Drive Belt Adjustment
3. Check that the tension of the air conditioner belt
is correct. It may be necessary to adjust the
tension again. Repeat Steps 1 and 2 in order to
adjust the belt tension. Tighten bolt (3). Tighten
bolt (1) again.
A correctly adjusted belt will deflect 14 to 20 mm
(.56 to .81 inch) under a 110 N (24.7291 lb) load.
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Walk-Around Inspection
SMCS Code: 7000-040
For maximum service life of the machine, perform a
thorough walk-around inspection before you mount
the machine and before you start the engine.
Illustration 253
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