Vemco HR2, User Manual

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IMPORTANT: The O-ring surfaces must be clear of all debris and dirt. Any debris could cause water
to enter the case and destroy the receiver.
The HR2 has three:
l
the two grooves between the threads and the LED on the end
cap, where the o-rings are seated, and
l
the first flat/smooth area inside the Outer Cylinder (2 cm),
between the threads and the end of the cylinder.
Step 1 - Clean O-rings and surfaces
Use a lint-free cloth to clean the old grease and any debris from the O-rings and the O-ring surfaces. A
lint-free swab is very helpful for cleaning inside the grooves.
Step 2 - Inspect O-rings grooves
Inspect the O-ring surfaces for any scratches or debris –
use a magnifying glass and a bright light. Scratches in the
O-ring groove would allow water to bypass the O-ring,
potentially flooding the receiver and destroying the
internal electronics. If you find debris (dirt, dust, hair,
etc.) inside a groove, then use a lint-free swab to remove
it. If you find a scratch in any of the O-ring surfaces,
then contact our Support department.
Step 3 - Inspect O-rings
Inspect the O-rings for debris and for any damage. If there is any question about the condition of an O-
ring, we recommend it be replaced rather than risk damage to the receiver and loss of data. O-rings can
be purchased from VEMCO or locally. The replacement O-rings must be PARKER #2-143 O-RING, 70
Bn NITRILE.
CAUTION: O-rings can stretch with continued handling. We advise that undamaged O-rings not be
used for more than three deployments.
159
7.2 O-Ring Care