Why is the alternator on my Hitachi Excavators noisy?
- PpamelagrimesSep 10, 2025
If your Hitachi Excavator's alternator is noisy, replace the drive belt if it's worn. If the pulleys are worn, replace both the pulleys and the belt. Adjust the alternator mount if the pulley is misaligned. Loosen the alternator belts and turn the pulley by hand; if you feel any roughness, the alternator bearing may be the issue.




