Buying a used combine: hour definitions, crop equipment and complete package cost
Buying a used combine requires evidence for the harvesting package, not just its engine-hour number. Identify what each display field measures, then inspect the crop-processing system, header, feeder, grain path and chassis as fitted. Deere’s 4640 Work Monitor help provides a useful warning: its elapsed separator and header fields reset when the machine powers off, so those readings are not automatically lifetime totals. Match the photographed labels and service records to the actual model before comparing advertised hours. The header, crop equipment, controls and any transport gear also need their own identities and condition findings. Have a competent inspector record measured wear, permitted tests and inaccessible areas, then obtain quotations for identified work. Compare a package capable of your crop and handling requirements, with unresolved conditions kept visible. A clean cab, a named inspection program or a brief separator demonstration cannot establish the performance of every system through a harvest season.
Identify the counters before comparing advertised hours
Which hour display should be recorded during the viewing?
Photograph each counter’s label and confirm its definition. Deere’s 4640 Work Monitor help says that elapsed separator hours count engagement and reset at power-off, while elapsed header hours also reset at power-off; because those are elapsed fields with that documented reset behavior, their display cannot establish lifetime use without the correct counter definition and supporting history. Keep the photographed labels with the records.
Can engine hours minus separator hours identify the time spent traveling?
Assume identified readings of 2,000 engine hours and 1,200 separator hours: their arithmetic difference is 800 hours. The subtraction cannot identify how the time was used.
Check counter history and basis first. Use records to investigate the remaining time.
Does separator engagement prove the combine was processing crop?
An engagement counter records the condition defined by its control system, not necessarily continuous crop flow. Compare engagement hours with records and measured wear. Comparing two used combines on one number cannot establish identical crop exposure, material throughput, adjustment history or remaining threshing and separation life.
Inspect the fitted crop-processing and harvesting equipment
What should be identified in the threshing and separation system?
Identify rotor or cylinder, concaves and separating equipment. Record crop kits and modifications.
Have the competent inspector use applicable wear criteria and identify repairs requiring further assessment. A familiar model badge does not establish that the original crop configuration remains fitted or that another machine’s wear measurements apply.
Which parts of the grain path require a separate assessment?
Include the cleaning system, elevators, augers, drives and associated sensors or controls appropriate to the model. Record findings and actual function-test conditions. Grain quality, a diagnostic message or material visible behind the machine cannot by itself isolate every source of loss, damage or poor separation without the appropriate investigation.
Why must the header be inspected and priced independently?
Identify its model, serial, cutting or picking arrangement and the actual required drive, mounting and control connections. Check compatibility, height control and feeder-interface condition.
Confirm that the photographed header is included. Physical mounting cannot establish its approved connections or crop capability.
What does safe access require during the inspection?
Follow the machine and header procedures for shutdown, energy isolation, moving-part run-down, access and positive physical support. Opening a side panel does not make a belt drive, rotor or raised header safe to enter or touch. Record any area the inspector cannot assess safely, and arrange the specified further work rather than substituting an unsupported visual guess.
Read service-plan claims against the actual records
Does a Deere Protect reference prove this used combine has a current plan?
No. Deere’s X and S Series flyer, revision 20-08, describes a named new-combine program with three end-of-season inspections and a 250-plus-point scope.
It is historical program evidence, not proof of an offered machine’s enrolment, present eligibility or transferable coverage. Obtain dated reports and the actual contract.
Check current terms before valuing claimed coverage.
Which service-history details help interpret inspection findings?
Ask for dated work records, component replacements, relevant diagnostic history and the actual crops and equipment used. Reconcile records, meter changes and current measurements. A crop name, storage address or recently replaced part alone does not establish a fixed wear ranking, a universal resale premium or the condition of components outside that repair.
Compare complete offers when buying a used combine
| Offer | Listed package | Additional known work or equipment | Subtotal |
|---|---|---|---|
| A | $70,000 combine | $20,000 header + $8,000 repairs | $98,000 |
| B | $90,000 with suitable header | $4,000 repairs | $94,000 |
Why can a lower combine price produce a higher total cost?
Assume offer A is $70,000, with a $20,000 required header and $8,000 of identified repairs: its known subtotal is $98,000. Offer B totals $94,000 under its stated assumptions. These are hypothetical inputs; the $20,000 listing-price difference becomes a $4,000 known package difference before other costs and unresolved condition.
Document harvest tests and transport requirements
What needs to be recorded during an authorized harvest demonstration?
Document the crop and moisture, header, settings, conditions and the method used to assess throughput, grain quality and losses. Keep observers outside the specified operating danger areas. The test supports the observed conditions; it cannot establish performance in every crop or distinguish all loss sources simply from grain noticed behind the machine.
What if the purchase occurs outside harvest and no crop test is available?
State which operating evidence remains absent and commission the model-applicable inspection and permitted tests that can be completed. Quote identified repairs and assess the remaining uncertainty. A stationary separator run or a report title should not be presented as a substitute for crop performance that was never demonstrated.
What should be settled for moving and preparing the bought package?
Confirm the actual transport configuration, header handling, dimensions, mass and required loading or disassembly procedures with the carrier. Add quoted delivery, applicable tax and preparation to the comparison, and verify parts and service support for the fitted equipment.
Price the complete harvest package and preparation. Keep unresolved diagnosis visible alongside quoted work.
The buying reference covers Hours vs age: meter and service history, inspection scope and Checking a machine for liens and theft: ownership checks. Compare combine configurations with Combine headers: header connections and measurements before pricing the package.