Used Excavator Inspection Checklist: What to Check Before You Buy
Illustrative image only; it does not depict a specific available unit or verify its condition.
Start with the exact machine
Before comparing prices, request the model designation, serial plate, current location and recent photographs of the actual unit. A catalog image does not establish condition. Ask the seller to identify any known defects, repairs or replaced components in writing.
See a cold start and a working cycle
Request a continuous cold-start video showing the machine before startup, the instrument panel and the engine running. Then ask for operating footage covering travel, slew, boom, stick and bucket movements. Video can reveal questions to investigate, but it cannot replace an independent inspection.
Inspect hydraulics and wear areas
Look for leaks around hoses, cylinders and connections. Examine cylinder rods for scoring or damage. Ask an inspector to assess operating performance at normal working temperature and compare findings against the applicable service specifications. Do not accept a short unloaded demonstration as proof of full hydraulic condition.
Price the undercarriage and attachments
Have the tracks, rollers, sprockets, idlers and tensioning system assessed. Check pins, bushings, bucket wear and attachment compatibility. Request an estimate for immediate repairs and transport before deciding whether a lower purchase price represents a better deal.
Build a unit-specific shortlist
For a CAT 320D, Komatsu PC200 or another model, compare the actual inspection findings and local parts support rather than relying on model reputation alone. Ask LZH USED MACHINERY for current availability, unit-specific inspection evidence and a destination-port quotation.
Frequently Asked Questions
What should I check first when buying a used excavator?
Confirm the exact model and serial number, then compare the actual machine with its records and current photos. Arrange an inspection covering engine operation, hydraulics, structural condition, undercarriage and attachments before agreeing to purchase.
Is a cold-start video enough to assess an excavator?
No. It is useful supporting evidence, but it does not establish hydraulic performance, structural integrity or wear measurements. Request operating footage at normal working temperature and an independent inspection of the actual unit.
How do I assess used excavator undercarriage condition?
Ask a qualified inspector to measure relevant wear points and assess tracks, rollers, idlers, sprockets and the tensioning system against model-specific limits. Obtain a repair estimate instead of relying on a visual percentage supplied without measurements.
Can fresh paint prove that a machine is in good condition?
No. Cosmetic appearance does not establish mechanical condition. Check repair history, welds, wear measurements and operational findings. The cover image in this guide is an AI illustration, not evidence of an available machine’s condition.
What evidence should I request before ordering?
Request the serial plate, current unit photos, operating videos, inspection findings, available maintenance records and a written description of known defects. Confirm the quoted unit and included attachments before payment arrangements.
Why arrange a pre-purchase inspection if the machine looks clean?
Appearance cannot reveal all mechanical problems. A Reddit post about a skid steer described major issues discovered after purchase, including high hours and mechanical defects. It is a reminder to inspect the exact unit before buying; it is not evidence about any excavator or seller.
Reddit buyer discussion behind this checklist
In “Post purchase inspection” on r/heavyequipment, the poster described a skid steer brought in after purchase with high hours and several serious mechanical issues, and stressed the value of pre-purchase inspection. The equipment in that post is a skid steer, not an excavator. When checked on October 30, 2026, Reddit displayed 41 votes and 6 comments; counts can change. The checklist below applies the general inspection lesson to excavators without treating the post as an excavator case.