Establish the exact implement
Before travelling to view a used attachment, ask for the make, model, identification details and photographs of the relevant plate where available. Confirm the included equipment and whether the listing describes the actual item being sold.
If identity is uncertain, say so in your notes. Do not borrow specifications from a similar-looking attachment and treat them as confirmed.
Find the correct instructions
Ask whether the operator's manual is included and whether the manufacturer can supply the right version. Record the requirements for the intended tractor or power source, as well as any options fitted to the implement.
Keep the manual separate from a sales brochure. A brochure can help identify a model, but it may not contain the instructions or limitations needed to use and maintain it.
Collect compatibility evidence
For tractor-mounted equipment, obtain the specified PTO power where applicable, linkage details, working mass and relevant dimensions. Ask about the actual configuration, including optional equipment. Use the implement matcher as an initial comparison and keep unanswered questions visible.
A numerical match does not establish condition, shaft suitability, guarding or operating suitability. Arrange competent advice on the actual combination before purchase.
Treat condition as a separate assessment
Ask about service history, repairs, modifications and known faults. Have a competent person assess areas you cannot judge. Do not accept missing guards or uncertain safety arrangements as a minor cosmetic issue, and do not request an unsafe demonstration.
Read HSE's machinery guidance for the broader context of safe equipment and supply. Establish the responsibilities relevant to your purchase with appropriate advice.
Compare the complete acquisition cost
Include collection or delivery, assessment, necessary work and missing documentation in the decision. A low asking price may remain attractive, but only when the unknowns and likely costs are explicit. Keep identity, condition and compatibility as three separate questions: answering one does not automatically answer the others.