NVIC 17-14 Task 8.2.B

Appropriate use of hand tools, machine tools and measuring instruments for fabrication and repair on board

OICEW-C1.7 Use of various types of sealants and packings

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

the candidate replaces a mechanical seal or repack gland on a centrifugal pump.

The candidate performs the operations as follows:

1. Isolates the component to be worked on;

2. Uses lockout/tagout procedures;

3. Selects the correct type of sealant or packing;

4. Prepares sealant/packing to proper size;

5. Cleans/prepares surfaces to receive new seal or packing;

6. In case of mechanical seals, follows manufacturer’s instructions;

7. Uses proper tension while tightening bolts;

8. Opens isolation valves slowly to check for leaks;

9. Fully tests new packing before putting unit back in service and

10. Takes proper action to prevent safety and pollution violations.