ACR Electronics HRU Installation
CAUTION: Before proceeding to install, test or use your new ACR
Electronics’ product, please read this Product Support Manual in its
entirety.
If you have questions regarding the contents of the manual, please
contact our Technical Service Department at ACR Electronics, Inc.,
Telephone +1 (954) 981-3333. Please be ready to provide the
technician with the page number you wish to discuss. If you have a
question that is not covered in the manual, please visit our website and
access the Frequently Asked Questions (FAQs) section for further
information or call our Technical Service Department. The website
address is www.acrelectronics.com. If in the future you lose this manual,
you may access and print a replacement on the ACR website.
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PLEASE READ ALL WARNINGS, CAUTIONS
AND NOTES CAREFULLY
Table of Contents
SECTION 1 – INTRODUCTION _______________________________ 3
SECTION 2 – PREPARING TO INSTALL ________________________ 4
SECTION 3 – HOW TO DETERMINE HRU EXPIRATION DATE _______ 6
SECTION 4 – INSTALLING THE HRU IN A SeaShelter3™ BRACKET ___ 7
SECTION 5 – INSTALLING THE HRU IN A SeaShelter2™ BRACKET ___ 9
SECTION 6 – INSTALLING THE HRU IN A SeaShelter™ BRACKET __ 11
SECTION 7 – INSTALLING THE HRU IN AN OPEN FACED BRACKET _ 13
SECTION 8 – INSTALLING THE HRU IN A CAPSULE BRACKET ______ 15
APPENDIX A – WARRANTY, USEFUL LIFE POLICY, NOTICES _______ 17
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SECTION 1 – INTRODUCTION
Congratulations and thank you for purchasing the ACR HydroFix™
Hydrostatic Release Unit (HRU) replacement for your ACR Category I
EPIRB.
ACR designs, manufactures and distributes quality products knowing
they are used to save lives. Many of our products are required to be
tested and approved by regulatory bodies worldwide. We believe in
going beyond those specifications to ensure our products work when
needed in real world conditions. With proper care and maintenance your
ACR product will last for years.
ACR is proud to be certified to ISO 9001: 2000, the International
Standard for Quality.
This manual provides installation instructions for the HydroFix™
Hydrostatic Release Unit (HRU).
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Figure 1
SECTION 2 – PREPARING TO INSTALL
UNPACKING THE HydroFix™ HRU
The HydroFix™ HRU Kit is a universal kit in that it is used for all
Category I ACR EPIRBs. The kit components that are required to
replace the HRU in a particular model will vary with the EPIRB bracket
you are servicing. The content of the universal HRU kit includes the
following:
Figure 1 items:
A Category I bracket (SeaShelter™) release rod
B Capsule design release rod
C Open faced release rod
D Keyed bracket adapter
E Replacement hydrostatic release unit (HRU)
F Mounting screws (4)
G Cotter pin, small
H Cotter pin, large
I Slotted spring pin (2)
J Mounting bracket adapter (2)
K HRU expiration label
L Mounting rod adapter (metal)
M Category I bracket (SeaShelter™
) release rod
3
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If any of the above is missing, please contact ACR Electronics’
Technical Service by email at service@acrelectronics,com or by phone
at +1 (954) 981- 3333.
Equipment that may be required but is not included:
// Black indelible marker
// Phillips-head screwdriver
// Flat-head screwdriver
// Pliers
The following notes, cautions and warnings apply to all EPIRBs and
must be followed for personal safety and proper HRU replacement.
bracket to malfunction.
replaced).
care to hold the spring in place during removal and installation of the
new HRU to prevent injury.
Notes, Cautions and Warnings
WARNING: Failure to replace the entire assembly can cause the
WARNING: Do not use any parts from the old HRU (the one being
WARNING: The HRU holds down the ejector spring. Take great
WARNING: Stow the EPIRB in a dry location as it will activate if out
of the bracket and wet.
WARNING: Non-ACR-supplied hydrostatic release units must not be
installed in ACR Category I EPIRB brackets. ACR cannot and does not
warrant the performance of other manufacturers’ products. Installation
of a non-ACR-supplied HRU voids the warranty and potentially
jeopardizes your safety.
CAUTION: Visually check the EPIRB when removing it from the
bracket. It must be sent back to ACR for check up and/or refurbishment
if ANY of the following conditions exist:
• Cracks to the exterior plastics
• Activation indicator break tab is broken
• Moisture appears inside the EPIRB
• Lacquer is not present in one of the screws or appears to have been
tampered with
NOTE: Some parts in this kit will not be used. Refer to Figure 1 and the
instructions for your specific model for details. Discard unused parts.
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