Excavator Buyer's Inspection Checklist
Buying a used excavator? Learn what to inspect before purchasing, from service history and operating hours through to hydraulics, undercarriage, structural wear and ownership checks.
Buying a used excavator can save a business thousands of dollars compared with purchasing new equipment. However, a lower purchase price only represents good value if the machine is mechanically sound, has been properly maintained and is suitable for the work you intend to perform.
Excavators often spend thousands of hours operating in demanding environments. Careful inspection before purchase can help identify excessive wear, hidden damage and expensive repairs that may not be obvious during a quick visual inspection.
This guide walks through the key areas worth checking before committing to a used excavator.
Quick Take
A quality used excavator can provide excellent value, but only if you inspect its operating hours, service history, hydraulics, undercarriage, engine, structural condition and ownership before purchasing.
Contents
Why Excavator Inspections Matter
Unlike passenger vehicles, excavators are designed to work continuously under heavy loads. Thousands of operating hours, difficult site conditions and inconsistent maintenance can all affect long-term reliability.
A thorough inspection helps identify potential issues before they become expensive repairs after settlement.
Buying on Price Alone Can Be Expensive
The cheapest excavator may become the most expensive if major hydraulic or undercarriage repairs are required shortly after purchase.
Before You Inspect
Before looking closely at the machine itself, gather as much information as possible from the seller.
Ask For
- Service records.
- Ownership history.
- Reason for selling.
- Operating hour history.
- Major repairs completed.
- Engine rebuild information.
- Hydraulic repairs.
- Current faults.
- Included attachments.
- Maintenance records.
Service History
Well-documented servicing provides valuable insight into how the excavator has been maintained throughout its working life.
Look for consistent servicing rather than isolated invoices.
Documentation Builds Confidence
A machine with complete servicing records often presents a lower ownership risk than one with little documented maintenance history.
Operating Hours
Operating hours are one indicator of equipment use, but they should always be considered alongside servicing and overall condition.
Higher-hour machines may still provide excellent value if maintenance has been consistent.
May indicate limited use, although maintenance history remains important.
Can still represent good buying if servicing has been comprehensive.
Always compare operating hours with the machine's physical condition.
Engine Condition
Start the excavator from cold where possible and observe how easily it starts.
Listen for unusual noises, excessive vibration, warning lights or abnormal exhaust smoke.
Inspect
- Cold starting.
- Engine oil.
- Coolant.
- Leaks.
- Belts.
- Filters.
- Exhaust smoke.
- Idle quality.
Hydraulic System
Hydraulics are among the most important—and potentially expensive—systems on any excavator.
Inspect hoses, cylinders, pumps and fittings for leaks, damage and signs of recent repairs.
Small Leaks Can Become Major Repairs
Minor hydraulic leaks may appear insignificant during an inspection but can develop into expensive repairs if ignored.
Boom, Dipper and Bucket
Carefully inspect structural components for cracks, welding repairs, excessive movement and wear around pivot points.
Buckets, pins and bushes naturally wear over time, but excessive movement may indicate significant future maintenance requirements.
Undercarriage
The undercarriage is one of the most expensive areas of an excavator to repair, so it deserves close attention before purchase.
Inspect the tracks, rollers, sprockets, idlers and track tension for excessive wear, damage or uneven movement.
Undercarriage Inspection
- Track condition.
- Track tension.
- Rollers.
- Idlers.
- Sprockets.
- Track pads.
- Uneven wear.
- Oil leaks around final drives.
- Loose or damaged components.
Undercarriage Repairs Can Be Expensive
A worn undercarriage may significantly affect the true purchase cost of a used excavator. If you are unsure about its condition, consider obtaining a professional machinery inspection before buying.
Slew Ring and Upper Structure
The slew system allows the upper structure of the excavator to rotate above the undercarriage.
Excessive movement, unusual noises or rough rotation may indicate wear that deserves further investigation.
Check For
- Excessive play.
- Grinding or unusual noises.
- Jerky rotation.
- Oil leaks.
- Loose mounting points.
- Damage around the upper structure.
Cab and Controls
The operator environment provides useful clues about how the excavator has been treated.
A heavily damaged cab, worn controls or non-functioning displays may indicate hard use or poor maintenance.
Inspect
- Seat condition.
- Seat belt.
- Control levers.
- Pedals.
- Display screen.
- Warning lights.
- Air conditioning.
- Windows and mirrors.
- Door operation.
- Hour meter.
Electrical Systems
Modern excavators rely heavily on electronic systems for monitoring, control and safety.
Turn on the ignition and check whether all warning lights illuminate and then clear normally after startup.
Check for active warnings, error codes and unreadable screens.
Confirm the battery starts the excavator confidently and terminals show no excessive corrosion.
Test work lights, indicators and safety beacons where fitted.
Attachments
Attachments can represent substantial additional value, but only if they are in suitable condition and compatible with the excavator.
Confirm exactly what is included in the sale and inspect each attachment separately.
Attachments May Include
- General-purpose bucket.
- Trenching bucket.
- Mud bucket.
- Rock breaker.
- Auger.
- Grab.
- Ripper.
- Compaction wheel.
- Quick hitch.
Confirm What's Included
Do not assume attachments shown with the excavator are included in the sale. Make sure every attachment is listed clearly on the purchase agreement.
Signs of Hard Use or Abuse
Excavators are built for demanding work, but some machines have endured much harder operating conditions than others.
Look for signs that the machine may have been overloaded, poorly maintained or repeatedly repaired.
Warning Signs
- Cracked welds.
- Fresh paint over structural repairs.
- Bent panels.
- Damaged boom sections.
- Excessive pin movement.
- Multiple hydraulic leaks.
- Poorly routed hoses.
- Uneven track wear.
- Heavy cab damage.
- Missing guards or covers.
Operate the Excavator
If possible, operate the excavator before committing to purchase.
Move through the major functions slowly and then under normal operating load where appropriate.
Test
- Forward and reverse travel.
- Track steering.
- Boom lift and lower.
- Dipper movement.
- Bucket curl.
- Slew operation.
- Blade operation where fitted.
- Hydraulic attachment functions.
- Engine response under load.
- Parking and safety controls.
Pay Attention to How It Feels
Controls should respond smoothly and predictably. Hesitation, excessive vibration, hydraulic noise or uneven movement can indicate issues worth investigating before purchase.
Ownership and PPSR Checks
Before settlement, confirm the seller owns the excavator and that the machine details match the purchase documentation.
A PPSR search may help identify whether a security interest is registered against the equipment.
Check Before You Pay
Do not rely only on verbal assurances that finance has been cleared. Confirm ownership details and complete appropriate checks before settlement.
Excavator Inspection Checklist Summary
History
- Service records
- Operating hours
- Ownership
- Major repairs
- PPSR
Mechanical
- Engine
- Hydraulics
- Slew system
- Leaks
- Cooling system
Working Components
- Boom
- Dipper
- Bucket
- Pins and bushes
- Attachments
Undercarriage
- Tracks
- Rollers
- Idlers
- Sprockets
- Final drives
Operator Area
- Controls
- Display
- Seat belt
- Warning systems
- Air conditioning
Operational Test
- Travel
- Slew
- Boom operation
- Hydraulic speed
- Engine under load
When Should You Get a Professional Inspection?
For higher-value excavators, older machinery or machines with limited service history, a professional inspection may be worthwhile before purchase.
A qualified heavy-equipment mechanic may be able to identify wear or faults that are difficult to detect during a basic inspection.
An Inspection Can Be Cheap Insurance
Spending money on an independent inspection before buying can be considerably cheaper than discovering a major hydraulic, engine or undercarriage problem after settlement.
Final Thoughts
A used excavator can be an excellent investment for a business when the machine has been properly maintained and purchased at a realistic price.
The key is to look beyond appearance. Service history, operating hours, hydraulics, undercarriage condition, structural wear and ownership checks all contribute to the true quality of the machine.
Taking the time to inspect carefully before purchasing can help reduce unexpected repairs, downtime and ownership costs once the excavator is working in your business.
Buy the Machine, Not Just the Price
A slightly more expensive excavator with strong service history and good mechanical condition may provide better long-term value than the cheapest machine available.
Found the Right Excavator?
Once you've inspected the machine and are comfortable with the purchase, Yes Approved can compare suitable equipment finance options from a panel of more than 40 Australian lenders.
This guide provides general educational information only and is not a substitute for a professional mechanical or machinery inspection. Equipment condition, servicing requirements and repair costs vary between machines. Consider obtaining an independent inspection and appropriate professional advice before purchasing used equipment.
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