MMA Assessment OICEW-8E2B

Centrifugal pump maintenance (packing)

Condition

On a vessel of at least 1,000 HP, or in a laboratory or workshop.

Performance requirement

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

Secure and Lock-out the end suction centrifugal pump

Disassemble the pump

follow disassembly procedure in the laboratory manual

Inspect all parts for wear and deterioration

Check the following:

  • packing, or seals
  • gasket
  • impeller wear
  • shaft bearings

Repair centrifugal pump

replace shaft packing according to procedure in the laboratory manual

replace or repair other parts as necessary to bring pump to manufacturer’s specifications

Reassemble centrifugal pump

Follow procedure in laboratory manual

Adjust packing, seals and gaskets as necessary

Test centrifugal pump

Operate under load and inspect for abnormalities

Location

Assessed in EN‑2111 Auxiliary Machinery II.

References

STCW Knowledge, Understanding and Proficiency

  1. OICEW-C1.7
  2. OICEW-C2
  3. OICEW-C2.3
  4. ABE-A8.1

NVIC Tasks

  1. NVIC 17-14 Task 8.2.B Replace a mechanical seal or repack a pump
  2. NVIC 17-14 Task 9.1.A Overhaul a centrifugal pump
  3. NVIC 17-14 Task 9.1.B Tighten pump packing
  4. NVIC 18-14 Task 5.1.B Operation of centrifugal and positive displacement pumps

Lab Manual

Auxiliary Machinery II Laboratory Manual

See the Assessment Guidelines for additional specifications of behavior and standards.