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Caution
Do not paint the EPIRB or its mounting
Do not clean with detergents or solvents
During vessel cleansing or painting remove the EPIRB
and its mounting.
10.3 HRU replacement
If you have an EPIRB in an enclosure marked Category 1 then it
contains a Hydrostatic Release Unit (HRU). This has a 2 year
replacement interval. The expiry date, which is marked on the HRU
and on the enclosure side label should be checked regularly.
WARNING
Failure to replace the HRU at 2-yearly intervals
may result in it not actuating correctly and
releasing the EPIRB in an emergency.
When the HRU expires you can obtain a replacement at a local marine
store; ask for a McMurdo "BreaktHRU with an EPIRB kit" (Part No.
82-210B). The kit is complete with breakable plastic rod, date labels
and instruction sheet. The HRU replacement procedure is as follows:
1. On the enclosure, remove the R-clip and pull the cover slowly
off.
2. Remove the EPIRB and stow it in a dry place. It will activate
if wet.
3. Hold down the lever arm to take up the force of the spring.
4. Push the HRU back then upwards out of the slot in the lever
arm.
5. When the rear clip disengages slowly release the lever arm.
6. The HRU with its breakable rod can now be lifted free and
replaced.
7. Using pliers, remove the rear E-clip and slide off the old HRU.
8. Fit the new HRU over the new rod, with its label facing
outward.
9. Refit the washer and the rear E-clip. Ensure rod moves freely.
10. Mark the HRU with an expiry date 2 years into the future.
11. Slide the HRU into the slot in the lever arm and push lever arm
down.
Declaration of Conformity
47
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