Alternator And Fan Belts Inspect/Adjust/Replace; Air Conditioner Compressor Belt Adjustment - Zetor UTILIX HT 45 Operator's Manual

Alternator and Fan Belts Inspect/Adjust/Replace

For applications that require multiple drive belts, Replace the belts in matched sets. Replacing only one belt
of a matched set will cause the new belt to carry more load because the older belt is stretched. The
additional load on the new belt could cause the new belt to break. If the belts are too loose.Vibration causes
unnecessary wear on the belts and pulleys. Loose belt may slip enough to cause overheating. To accurately
check the belt tension ,a suitable gauge should be used.
Fit the gauge(1) at the center of the longest free length and check the tension.The correct tension is 535
N (120 lb). If the tension of the belt is below 250 N (56 lb) adjust the belt to 535 N (120 lb).
If twin belts are installed,check and adjust the tension on the both belts.
1 - Gauge

Air conditioner compressor belt adjustment

1 - Tension Adjusting Bolt
Check the compressor belt tension regularly and adjust.
If required. The correct tension is if the center of the belt is
Pushed With a finger it moves in approx. 10 mm (0.39 in)
as shown in the picture.
To adjust the belt, loosen the top bolt on the alternator,
move the alternator to the desired position and tighten the
bolt.
Also ensure that the bottom alternator bolts are tighten.
LUBRICATION & MAINTENANCE
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U18N097
U18N098