Caterpillar C15 Industrial Engine — Belts - Inspect/Adjust/Replace
Maintenance
For the Caterpillar C15 Industrial Engine, from the Caterpillar owner's manual.
Applies to: Caterpillar C1.5 engine
Before you start
- Slippage of loose belts can reduce efficiency of driven components. Too tight belts stress components.
Procedure
- Inspect the alternator belt and fan drive belts for wear and cracking. Replace if not in good condition.
- Check belt tension according to the Service Manual, 'Specifications'.
- Replace multiple drive belts in matched sets.
- Alternator belt adjustment: remove belt guard, loosen mounting bolts and adjusting bolt, move assembly, tighten bolts, reinstall guard.
- Fan drive belt adjustment: remove belt guard, loosen pulley mounting bolt and adjusting nut, move pulley, tighten nut and bolt, reinstall guard.
- Check new drive belt tension again after 30 minutes of engine operation at rated rpm.
Source: Caterpillar owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.