PUMP & MTG GP-MAIN HYDRAULIC 4893482 - Caterpillar

the used fan drive belt and the accessory drive belt. Install new belts.For applications that require multiple drive belts, replace the belts in matched sets. Used belts are stretched. Replacing only one belt of a matched set will cause the new belt to carry an excessive load. The additional load on the new belt could cause the new belt to break.Check the belt tension according to the information in the Service Manual, "Specifications" module. To adjust the belt tension, see this Operation and Maintenance Manual, "Alternator and Fan Belts - Inspect/Adjust/Replace" topic (Maintenance Section).After new belts are installed, check the belt tension again after 30 minutes of engine operation at rated rpm.