Komatsu's volume excavator — same priorities as any 20-tonne machine: undercarriage, hydraulic pump health, and final drives, verified by measurement.
The PC200 is Komatsu's answer to the Cat 320 and shows up on job sites everywhere. The inspection logic is identical to any 20-tonne excavator: the undercarriage and hydraulics carry the value, and cycle times and drift reveal pump and valve health that a quick demo won't.
Tracks, rollers, idlers, and sprockets are the largest wear cost.
CHECK Measure wear and estimate remaining undercarriage life.
Pump and valve wear shows up as slow, weak, or drifting functions.
CHECK Time the cycles, test for drift under load, and check pressures.
Final-drive and swing-motor wear cause noise and leaks.
CHECK Listen while tracking and swinging and check for case leaks.
Swing-bearing play and boom/arm cracks reveal hard use.
CHECK Check swing play and inspect welds and pivots.
Newer machines carry emissions systems that clog and fault.
CHECK Verify regen and check for derate warnings.
Heavy-duty diagnostic laptop with OEM adapters & software · Hydraulic pressure test kit with assorted fittings · Undercarriage wear gauges · Pin & bushing wear measurement tools · Ultrasonic thickness gauge for structural steel & buckets · Infrared thermometer / thermal camera · Oil & fluid sampling kit for lab analysis · Digital borescope …
See the full Heavy Equipment Inspection tool kit →
Pre-tagged for the Komatsu PC200 Excavator (All series).