Caterpillar Undercarriage Maintenance Guide
The undercarriage is one of the most expensive systems on a track-type machine. Proper maintenance can extend undercarriage life by 20-50%.
Daily Inspections
Check track tension daily - sag should be 1.5-2 inches for most excavators. Inspect for loose or missing track shoes and damaged rollers.
Proper Track Tension
Over-tightened tracks increase friction and wear on sprockets and rollers. Under-tightened tracks can lead to derailment.
When to Replace
Key wear indicators: bushing wear, roller flange wear, sprocket tooth profile change. WSTPARTS stocks complete undercarriage kits for popular CAT models.