MACHINERY, ENGINES & GENERATORS

Project Manager control of machinery overhaul, maintenance, testing and commissioning

Machinery work on a yacht may include main engines, generators, gearboxes, pumps, cooling systems, exhaust systems, mounts, fuel systems, lubrication systems and associated controls.

The Project Manager is not expected to replace the Chief Engineer or specialist technician. The PM’s role is to coordinate scope, subcontractors, access, programme, parts, documentation, testing, quality control and final acceptance.

The objective of this module is to ensure machinery work is properly planned, traceable and tested before the yacht returns to service.

Key responsibilities

  • Confirm the machinery scope with the Captain, Chief Engineer and owner’s representative.
  • Review service history and previous maintenance records.
  • Identify manufacturer-recommended service intervals.
  • Confirm access requirements before machinery is dismantled.
  • Identify lifting, removal and transport requirements.
  • Confirm spare parts, consumables and long-lead items.
  • Coordinate OEM technicians and specialist subcontractors.
  • Record equipment condition before dismantling.
  • Establish isolation and lock-out requirements.
  • Control cleanliness during dismantling and reassembly.
  • Confirm replacement components match manufacturer specification.
  • Maintain traceability of removed and replaced parts.
  • Coordinate alignment checks where machinery is removed or disturbed.
  • Monitor engine and generator mounts.
  • Confirm cooling, lubrication, fuel and exhaust systems are correctly reinstated.
  • Confirm hoses, clamps, valves and flexible connections are inspected.
  • Control foreign-object-debris risk.
  • Establish testing and commissioning procedures.
  • Confirm alarms, shutdowns and protection systems are tested.
  • Record operational parameters during testing.
  • Coordinate sea-trial requirements where applicable.
  • Ensure service reports, test records and warranties are collected.
  • Obtain final acceptance from the responsible yacht representative.

MACHINERY CONTROL CHECK

Before and during machinery work, the Project Manager should verify, where applicable:

  • Equipment make and model
  • Serial number
  • Operating hours
  • Service history
  • Manufacturer service schedule
  • Fault history
  • Oil-analysis reports
  • Cooling-system condition
  • Fuel-system condition
  • Exhaust-system condition
  • Engine / generator mounts
  • Flexible couplings
  • Shaft alignment where relevant
  • Gearbox condition
  • Filters
  • Belts
  • Hoses
  • Clamps
  • Pumps
  • Heat exchangers
  • Coolers
  • Sea-water strainers
  • Thermostats
  • Sensors
  • Alarm systems
  • Shutdown systems
  • Starting batteries
  • Wiring and connections
  • Fuel injectors
  • Turbochargers
  • Lubrication system
  • Oil pressure
  • Coolant pressure
  • Exhaust temperature
  • Vibration
  • Noise
  • Leakage
  • Spare parts
  • Consumables
  • OEM documentation
  • Specialist tools
  • Lifting plan where required
  • Lock-out / tag-out
  • Cleanliness and FOD control
  • Reassembly torque settings
  • Fluid refill
  • Bleeding and venting
  • Pre-start checks
  • Initial start-up
  • Load test
  • Alarm test
  • Shutdown test
  • Operational test
  • Sea-trial test where required
  • Final service report
  • Warranty documentation

PROJECT MANAGER COMPETENCY TEST

Scenario 1 — Generator Overhaul

A generator overhaul is nearly complete, but several replacement parts have arrived without traceable part numbers or supplier documentation.

Question:
What should the Project Manager do?

A. Install them if they appear identical
B. Confirm correct specification and traceability before installation
C. Ask the crew to decide
D. Install them and record them later

Correct answer: B

Why:
Machinery components should match the required specification and be traceable, particularly on critical equipment.

Scenario 2 — Alignment

A main engine has been removed and reinstalled after major work. The subcontractor proposes starting the engine without checking alignment.

Question:
What should happen?

A. Start the engine and check vibration afterwards
B. Confirm alignment requirements and complete the required checks before operation
C. Increase mount tension
D. Ask the Captain to approve the start

Correct answer: B

Why:
Machinery removal can affect alignment. Incorrect alignment can damage couplings, mounts, shafts, gearboxes and bearings.

Scenario 3 — Cooling System

After recommissioning, a generator reaches an unusually high operating temperature under load.

Question:
What should the Project Manager do?

A. Continue the load test to see whether temperature stabilises
B. Stop or reduce the test as appropriate and investigate cooling-system condition before continuing
C. Increase engine speed
D. Ignore it if there is no alarm

Correct answer: B

Why:
Abnormal operating temperature may indicate a cooling-flow, heat-exchanger, thermostat, pump or system problem and should be investigated before continued operation.

Scenario 4 — Commissioning Records

A machinery subcontractor has completed the work and wants to leave the yard, but no commissioning report or test readings have been provided.

Question:
What should the Project Manager do?

A. Accept the work because the machinery runs
B. Obtain the agreed commissioning records, test results and service documentation before closing the work package
C. Ask the crew to prepare the report
D. Close the job and request the report later

Correct answer: B

Why:
Completion should include objective evidence of testing, commissioning and the final service condition

MODULE COMPLETION

Before completing this module, the Project Manager should be able to:

  • identify the main machinery systems involved in a yacht refit
  • understand the importance of service history and OEM requirements
  • plan access, lifting and dismantling activities
  • maintain parts and component traceability
  • recognise alignment and mount considerations
  • understand basic cooling, fuel, lubrication and exhaust-system controls
  • establish machinery testing and commissioning requirements
  • recognise abnormal operating conditions
  • coordinate specialist subcontractors and yacht engineering staff
  • collect service reports, commissioning records and warranties
  • ensure machinery work is fully documented before acceptance

 

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