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MEMCAQA IronbarkSimulated workplace
Simulated workplace
Scenario · Field Maintenance Services

Plan and carry out a conveyor pulley bearing changeout

You are a maintenance fitter on the Gladstone field crew.

Intermediate4 to 6 hours8 tasks
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The situation

What has happened

The Mount Errol Quarries October shutdown includes replacing the head and tail pulley bearings on conveyor one and realigning the drive. The bearings have been received under REC-26-0887. The work is carried out under the customer's isolation permit system with Ironbark personal locks on the group lock box, and the laser alignment kit at Gladstone is due for calibration before the shutdown. Bree Sutherland, the Maintenance Services Manager, wants the isolation plan, the JSA and the changeout method prepared before mobilisation, and then wants the changeout carried out and recorded on the job card with the alignment readings and condition findings.

Your brief. Prepare the isolation plan and job safety analysis for the bearing changeout, confirm parts, equipment and your own competencies are ready, carry out the isolation, changeout and alignment to procedure, and record the work, readings and condition findings against the job card.
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Tasks

Deliverables

  • Isolation plan listing energy sources and isolation points for conveyor one
  • Job Safety Analysis for the bearing changeout
  • Alignment readings before and after, with the condition report
  • Job card JC-26-0420 updated with isolation record, hours and findings

Documents to use

Systems to use

Job Card Register

Tracks every fabrication, machining and maintenance job from quote to close-out with customer, drawing, hours and status.

Plant and Equipment Register

Lists workshop machines, cranes, welding sets, measuring equipment and site tools with inspection, calibration and service status.

Materials and Certificate Register

Records receipts of steel, consumables and spares with purchase order, heat number, certificate reference and the job each item was issued to.

Training and Competency Matrix

Holds each worker's licences, welder qualifications, inductions and training with expiry dates so supervisors can allocate work to people who are current.

For trainers and assessors

Units of competency

Current on training.gov.au for the Manufacturing and Engineering as at 10 September 2026.

MEM18011Shut down and isolate machines/equipment
MEM18005Perform fault diagnosis, installation and removal of bearings
MEM18009Perform precision levelling and alignment of machines and engineering components
MEM18055Dismantle, replace and assemble engineering components
MEM13015Work safely and effectively in manufacturing and engineering

Qualifications

MEM30219Certificate III in Engineering - Mechanical Trade
MEM31419Certificate III in Engineering - Fixed and Mobile Plant Mechanic
Assessor notes

What to look for

Evidence guide

The isolation plan must identify electrical, gravitational and stored mechanical energy and show a test for dead. Look for correct bearing fitting method (heating or pressing on the correct race, never hammering), alignment readings within the tolerance the student states, and a condition report that a customer could act on. The student should have noticed the alignment kit calibration and their own expiring induction in the registers.

The student's evidence summary lists every record they created or changed in the systems named above, their notes and the tasks they ticked. Verify it against the deliverables and your own assessment tool.