BODY AS-PISTON 2935540 - Caterpillar

Inspection
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Arrangement for the V-belts
To maximize the engine performance, inspect the belts for wear and for cracking. Replace belts that are worn or damaged.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 belts may slip enough to cause overheating.To accurately check the belt tension, install 144-0235 Belt Tension Gauge.
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Typical example
(1) Gauge Fit the gauge (1) at the center of the longest free length and check the tension. The correct tension for a used belt is 355 N (79.8 lb). If the tension of the belt is below 250 N (56 lb) adjust the belt to 355 N (79.8 lb).Note: The correct tension for a new belt or new belts is 535 N (120 lb). A higher tension is required in order to compensate for the stretch that is in a new belt. Only use the higher tension on a belt that has not been used. A used belt is a belt that has been in operation for 30 minutes or a longer period of time. If twin belts are installed, check and adjust the tension on both belts.Adjustment
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Typical example
Loosen The alternator pivot bolt (2) and the bolt (3).
Move the alternator in order to increase or decrease the belt tension. Tighten the alternator pivot bolt and the link bolt to 22 N m (16 lb ft). (1). Replace
Refer to Disassembly and Assembly manual for more information.