| Hour-meter credibility | The displayed hours should match service records and component wear. | Compare meter readings with inspection reports, maintenance invoices, onboard records, pedal wear, seat wear, and track condition. | Unverified or inconsistent hours justify a 5%–15% price reduction or a written warranty. |
| Undercarriage condition | Track components should have measurable remaining service life, with no severe cracking or abnormal looseness. | Use a calibrated track gauge and inspect links, bushings, rollers, idlers, sprockets, track frames, and adjusters. | A worn undercarriage can justify a large deduction because replacement may cost tens of thousands of dollars. |
| Engine and cooling system | The engine should start cold without excessive smoke, blow-by, overheating, or abnormal noise. | Request a cold start, inspect coolant and oil, perform a load test, and check for leaks around the engine and radiator. | Cooling defects, oil contamination, or weak performance should be repaired before closing or deducted from the price. |
| Hydraulic system and blade | Blade cylinders and hydraulic functions should operate smoothly without drift or major leakage. | Cycle every function under load and inspect hoses, pumps, cylinders, pins, cutting edges, and blade corners. | Visible leaks or excessive blade-pin play support a repair credit or escrow retention. |
| Transmission and final drives | The machine should pull evenly, shift correctly, and turn without unusual noise or hesitation. | Test forward and reverse ranges, steering, brakes, differential operation, and final-drive temperatures. | Slipping, overheating, or metal contamination in oil may justify postponing the purchase. |
| Inspection and documentation | A qualified independent inspection and clear ownership documents should be available before payment. | Obtain a serial-number check, lien search, service history, inspection report, tax documents, and export papers where applicable. | Missing records increase transaction risk and should reduce the offer or stop the deal. |