CHAPTER 7 – MAINTENANCE AND ADJUSTMENT
ALTERNATOR BELT AND AIR CONDITIONING COMPRESSOR BELT
Service Interval
Alternator belt service interval ...................................................................... Check daily and replace every 1000 hours Air conditioning compressor belt service interval ........................................................................ Check every 250 hours
Alternator Belt Check 1. Park the machine on a level surface and apply the parking brake.
Drive Belt and Tensioner Inspection
2. Put the ignition key on the OFF position. 3. Remove the panel located behind the operator’s seat to inspect the drive belts. Measure the drive belt deflection between the pulleys. The maximum deflection permissible must be of 9,5 to 12,7 mm (3/8 to 1/2”). 4. Remove the drive belt using a 1/2” square socket wrench handle, to release belt tension. Nota: The panels behind the operator’s seat must be removed in order to access the drive belts.
After removing, examine the belt for damage.
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Drive Belt Tensioner The drive belt tensioner pulley must rotate freely with no point showing resistance, locking up, etc., when turned by hand. Check belt tensioner bearing carefully also.
Reinstalling the Drive Belt
1. Alternator belt 2. Air conditioning compressor belt
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7 3. 4. 5. 6. 7.
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Water pump pulley Crankshaft pulley Square hole of 1/2” (12,7 mm) Belt tensioner Alternator
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Using a 1/2” socket wrench handle and the tensioner, install the belt carefully, observing that the multi-V’s ribs fit perfectly with the existing channels of the alternator pulley and vibration damper.
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