Assessment OICEW-5-1H

Start fuel oil or lube oil purifier

Assessed in EN-3233 Steam and Gas Turbines


Using an approved simulator, in the laboratory, or aboard ship, given access to a fuel oil or lube oil purifier.

Performance Requirements

Behavior Standard
The student will: During assessment, the student shall, at a minimum:

Identify the valves and equipment associated with the purifier unit


  • suction and discharge piping
  • inlet and outlet valves
  • pumps
  • clean and dirty oil tanks

Line-up purifier unit

Line up correct valves from suction to discharge

Start the purifier

Start prime mover and bring up to speed

Secure if excessive vibration is noted

Prime purifier


  • 10 to 15 psi discharge pressure
  • 120° F inlet temperature
  • oil level remains visible

Monitor the purifier until conditions stabilize


  • oil temperature
  • discharge pressure
  • water seal

Supports Table A-III/1 officers in charge of an engineering watch

Competence Knowledge, Understanding & Proficiency Task

Operate main and auxiliary machinery and associated control systems

A4.1 Basic construction and operation principles of machinery systems, including:

  1. marine diesel engine
  2. marine steam turbine
  3. marine gas turbine
  4. marine boiler
  5. shafting installations, including propeller
  6. other auxiliaries, including various pumps, air compressor, purifier, fresh water generator, heat exchanger, refrigeration, air-conditioning and ventilation systems
  7. steering gear
  8. automatic control systems
  9. fluid flow and characteristics of lubricating oil, fuel oil and cooling systems
  10. deck machinery

Start fuel oil or lube oil purifier

Published: 2016-10-28-04:00