What should a maintenance plan contain?

A maintenance plan only works when it can be applied day to day. Generic documents end up filed away; objective plans with clear responsibilities get carried out.

Inventory of the equipment covered

Each piece of equipment needs a unique identification: type, capacity, location, make, model, year and serial number where available. Without a reliable inventory, history is lost and traceability is compromised.

Justified intervals

The interval should reflect duty cycle, criticality to production, operating environment and failure history. Equipment running three shifts in a harsh environment should not follow the same schedule as one used occasionally.

Inspection items by assembly

• Structure. Girders, visible welds, fixings, end stops and rails.
• Hoisting. Rope or chain, drum, hook, safety latch and sheaves.
• Drive. Motors, gearboxes, brakes, couplings and wheels.
• Electrical. Panel, guards, cables, controls, limit switches and signalling.
• Routines. Lubrication, retightening and technical cleaning.

Responsibilities and limits of supply

Define what falls to the contractor and what falls to the client: clearing the area, power isolation, auxiliary access means, materials included and materials invoiced separately. Ambiguity here is the most common source of conflict during the work.

Response times and priority criteria

Establish urgency classes with matching response times and objective criteria for classification. Equipment stopped on a critical line calls for different treatment than an anomaly logged with no immediate impact.

Records and reports

Each service call should produce a report with equipment identification, date and location, work performed, anomalies found, components replaced, photographs, recommendations, the person responsible for the work and the client's acknowledgement. Together these records support future investment decisions.

Periodic review of the plan itself

The plan should be reviewed when the duty cycle changes, when history reveals recurring faults or when the operation takes on new equipment. A static plan loses touch with reality within a few months.

Conclusion

A complete maintenance plan brings together an inventory, justified intervals, inspection items per assembly, explicit responsibilities, deadlines, materials and records. Documented in these terms, it stops being a formality and starts guiding equipment availability.