Parts and service

The spare part catalog holds a part number, name, unit, quantity on hand and reorder point. Part usage records the part, quantity, date and work order. The posting action validates that the order, part and quantity are eligible, writes the usage once and reduces quantity on hand. It flags reorder when stock falls to the reorder point.

That transaction should happen when material is actually used, not merely when someone considers a part for a repair. The work order is the source of the maintenance need; the usage entry explains what stock left the shelf. The inventory clerk can use the part and usage registers to check whether the physical count and job history agree.

• Identify the part. Confirm the part number, name and unit before posting usage.
• Post once. Record the quantity against the specific work order and check the resulting stock.
• Keep the result. Close accepted work with service history tied to the asset and order.

For a pump repair, the technician uses a replacement seal. The part usage action validates the job and quantity, records the seal against that work order, and reduces the seal’s stock. If the remaining quantity reaches the reorder point, the stock flag prompts the inventory clerk to review replenishment. The inspector later accepts the repair; the service entry records its outcome.

Normalize part numbers and units before the first posting. If one team counts seals individually while another records packs, the quantity on hand will not describe what is actually available. Agree who may update the catalog and who may post use during a job. Establish a simple shelf-count routine around the reorder point.

Decide how technicians describe the result of a completed service. The outcome should explain what was accomplished, while the next due date gives the manager a useful follow-up marker. Keep the service entry linked to both the asset and its work order so a later technician can reconstruct the sequence.

Choose a stocked part with a known quantity and reorder point. Post a valid amount against an active work order, then check that the usage entry exists once and that stock fell by the same amount. Repeat the posting request and confirm it does not consume stock twice. Try an invalid quantity and confirm no usage or stock change is recorded.

Finish and inspect the work order. Check that its service history carries the correct asset, order, completion date and outcome. The inventory clerk should be able to start with the part register and find where the material went; the facility manager should be able to start with the asset and find the completed service.

• Spare Part Catalog — Part identity, unit, stock on hand and reorder point.
• Part Usage Register — Posted material by work order, part and date.
• Service History Register — Accepted work outcomes and next due dates by asset.

Use parts and stock to rehearse the inventory effect, then maintenance work order to close the service.