Excessive belt noise can mean changing the belt drive tensioner or idler pulley or the poly-V belts. First inspect the belt drive tensioner system for wear and tear.
Inspection of the Belt Drive Tensioner System
Check as follows:
- Inspect the belt contacts surface for chips, flaking, cracks and discoloration.
UNEVEN RIB WEAR
- Inspect the bearings by rotating the pulleys to look for bearing slop or choppy feeling bearings.
- Inspect the springs on the tensioner. If the rubber is damaged or if the spring is damaged, change the assembly.
- Inspect the pulleys for damage and excessive wear. If pulleys or the belts are damaged, change the damaged pulley and the belt.
- Check the belt wear pattern on all idler pulleys.
- If the belt wear pattern is incorrect (A), change the pulley and bracket assembly.
- If the belt wear pattern is correct (B), the idler and bracket can be reused.
|EPA07 DD15 Troubleshooting Guide - DDC-SVC-MAN-0029|
|Generated on 10-13-2008|