How to Inspect Used Equipment Before Buying

Introduction

Used equipment can be a great opportunity or an expensive trap. A low price is not a bargain if the hydraulic pump, transmission, chassis, or undercarriage needs major repair. Inspection must be systematic, not just a quick walk-around.

Visual inspection

Start with chassis, welds, modifications, rust, leaks, tires or tracks, bucket condition, pins, bushings, glass, cabin, and hour meter. Look for paint differences between body parts; they may indicate accident repairs or major repainting.

Operational inspection

Start the machine cold. Watch smoke, engine sound, oil pressure, operating temperature, response speed, hydraulic power, transmission vibration, and straight movement. For excavators, inspect swing bearing, boom play, cylinder leaks, track chain, and sprocket. For loaders, check articulation, brakes, shifting, and bucket pins.

Documents and ownership

Check registration papers, serial number, chassis number, plate matching, invoices, maintenance records, liens or restrictions, and transferability. In rental equipment, paperwork can stop work more than mechanics.

Indicative chart for explanation and analysis only.

Practical points

• Pay an independent engineer or mechanic; it is cheaper than discovering faults after purchase.
• Do not trust the hour meter without comparing it to pedals, seat, pins, and general wear.
• Ask for a loaded test, not just idle operation.