The phrase “430 mm clutch” leaves the seller to guess whether to quote a disc or a set. The catalog lists an XCMG QY70K 430 mm clutch disc and a 430 mm disc and pressure plate set. Read those as different supply scopes. A diameter in the name is a comparison point, not proof that two discs or complete sets fit the same carrier.
Ask the workshop to identify the item it has approved for replacement and to record the carrier identification and original references. If the request comes from a previous service invoice, check whether the work order is repeating the same repair or addressing a different component. Keep the carrier serial, fitted assembly information and removed part markings separate so each can be checked. A note saying only “clutch slipping” does not identify what to order.
If the components are already out as part of an authorized repair, obtain separate photos of the disc and the pressure plate labels or markings. A photo of the disc face is not the same as a view of its hub. If the technician identifies a feature that needs comparison, label the photo or drawing with that feature. Avoid guessing fitment from a photograph with no scale or from the diameter alone. The workshop should compare any critical dimensions and interfaces against the applicable documentation.
A 430 mm clutch disc quote should say which disc is being supplied and whether anything else is included. A clutch pressure plate set quote should name each included component. Ask the seller to identify anything pictured but not supplied, and separate any extra item the workshop has requested. Do not assume a set includes a release component or installation hardware because the parts are discussed together in the service manual.
A disc-only offer and a disc-plus-plate offer are not automatically substitutes. The work order may call for one or the other based on inspection. Ask purchasing to compare prices only after the scope has been agreed. If a supplier proposes a different reference, have it state the basis for the match and what is different, if anything. Keep that proposal separate until the person responsible for fitment approves it.
A usable purchase line reads: “Disc only, subject to confirmation against attached original markings and carrier details. Please state supplied reference and confirm what is excluded.” If a set is needed instead, change the scope explicitly and get a revised quote. Preserve the written confirmation so the receiving team can check the package against what was accepted rather than what was originally requested.
If two items are packed separately, tie each label to its line on the order. Record any mismatch before sending the package to the service bay. Do not release an alternative on the strength of a handwritten size label. A verified receiving record helps later if the old parts are no longer available or if the team needs to buy a second kit for a different crane.
No. Confirm the fitted assembly, full reference and documented interfaces. Diameter helps narrow the search, while the original identification and supplier confirmation determine which option can be approved.
When the machine is due back on a fixed date, ask suppliers to state lead time for each approved component rather than only for the first package. A set is not ready for the workshop if a separately quoted part needed for the job has not arrived.
Before accepting an offer for a matched set, ask the seller to state the individual references as well as the set reference, if available. This makes it easier to identify what arrived when two boxes carry different labels. If the supplier cannot break down the references, obtain a written contents description.
Compare disc-only and complete-set offers in the supplier quote comparison. Carry the agreed package contents into the crane parts packing list so receiving can check the delivery.
