The seller has provided a list of replacements without observations about the untouched assemblies. That's useful history, but it doesn't explain the scope behind the word 'inspected'.

Request the unit-specific inspection scope and a complete inventory of what's included. You can then make a qualified condition assessment and a demonstration relevant to your application conditions of purchase.

@ElenaChan1123 Sorry, basic question: doesn't refurbished mean they checked the whole thing? I'm not sure what the label promises.

You need the underlying scope to know what the description means here. Request the checks performed, their results and anything excluded for this particular unit.

@ElenaChan1123 When I bought a used arm for my setup, an itemised inventory revealed that a cable we needed wasn't included. Identifying it made the extra cost straightforward to establish.

@ChenBarnes0529 The seller describes this bundle as a complete system without much detail. Would photographs of the individual items help establish what I'm actually being offered?

@TheoAbbott0062 Photos helped with mine, alongside an itemised list. Have them identify the controller, pendant, cables and included software access rather than relying on the group photo.

A successful demonstration of your handling task should address the main condition uncertainty left after the paperwork review.

A demonstration doesn't settle the gap in the replacement list. Successfully handling something isn't a condition assessment of the assemblies that weren't replaced.

@AlexBell0646 You're right to challenge that. I should have described the demonstration as evidence about the application, with the independent condition questions still requiring qualified assessment.

At the visit, I witnessed normal movement and a successful handling demonstration. Backup restoration wasn't demonstrated, so I've left that item explicitly untested.

If there's a backup file, what else are you checking? Whether it opens?

@RobinAli0251 The useful question is whether the system can recover its required configuration through the appropriate procedure. Ask the seller and assessor to define a controlled demonstration and identify the access it requires.

For my setup, sorting access permissions was a separate handover item. A folder of files didn't explain who could actually use the recovery tools.

@ChenBarnes0529 I'm also considering the handover's support arrangements. Should I ask for a named support route so maintenance doesn't depend on referring everything to the previous owner?

Include an explicit support arrangement for the offered configuration, alongside transferable access and service documents. Ownership of the hardware alone doesn't explain what support the package includes.

Keep the replacement list in its proper role: it describes work performed. It doesn't establish that every other possible condition issue was investigated and excluded.