1.3.6 Replacement/maintenance HRU, EPIRB Module/Battery pack, TRON 40VDR
(capsule and bracket)
The expiry date of the Hydrostatic Release Unit (HRU), EPIRB Module/Battery pack, TRON
40VDR (capsule and bracket) will be checked during the APT but please note that these can
expire in between the APT’s.
Hydrostatic Release Unit
The HRU including Plastic Bolt needs to be replaced every 2 years. The expiry date can
be found on the label of the HRU or in the most recent APT checklist.
Replacement instructions can be found in the user manual of Jotron. This user manual is
enclosed to the delivery box or can be found on the internet site of Jotron.
EPIRB Module/Battery pack
If the EPIRB is fitted on a vessel which requires GMDSS compliant equipment, the EPIRB
shall be serviced, tested and approved (as required by SOLAS regulation IV/15.9.2 of
SOLAS 1974 as amended with, in accordance with MSC/Circ.1039 guidelines for shore-
based maintenance of Satellite EPIRBs) within 5 years, or by the date of battery expiry,
whichever comes first. The expiry date can be found on the label of the EPIRB or in the
most recent APT checklist.
The TRON 40VDR battery must be changed at a Jotron SBM authorized workshop to be
GMDSS compliant. If your TRON 40VDR is not under any international or national
regulations, battery can be change by authorized Jotron representatives/partners/dealers.
TRON 40VDR Float-Free Capsule/Bracket
Jotron recommends replacing both the TRON 40VDR Float-Free Capsule and Bracket
every 10
th
year.
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