VEMCO - VR2AR / VR2AR-X Manual
15 March 2019
36
5.2
O-ring Care
O-rings located in the end-cap of the VR2AR case are crucial to the watertight seal of the receiver. Each time
an O-ring is disturbed, for any reason, it
must
be checked before the unit is sealed again. Something as
simple as a stray hair could be the difference between a successful study and a damaged receiver.
Just as the O-rings are vital to a good seal, so are the O-ring surfaces. These surfaces hold the O-ring in
position and must also be clean and damage free or the VR2AR case could flood with water.
5.2.1
Remove O-rings
The O-rings must be removed from their grooves to allow the
O-rings and the grooves to be inspected and cleaned. Do not use
a sharp object, which may damage the groove surface, when
removing the O-rings.
1.
Use a lint-free cloth to grip two points on the O-ring with your thumb and
finger, approximately 5 cm apart. It’s best to start with the O-ring farthest
from the case threads.
2.
Pull your thumb and finger towards each other while maintaining your grip
on the O-ring. This requires pressure against the O-ring and should produce
a loop of exposed O-ring.
3.
Grab the exposed O-ring and pull it away from the end cap, so it moves
along the body of the receiver.
4.
Repeat Steps 1 -3 for the other O-ring.
5.
Clean any O-ring grease on the internal casing.
Each time an O-ring is
disturbed, for any reason, it
must be checked
before
the unit is sealed again.
Improper care of the O-rings and their
mating surfaces can result in water
leaking into the receiver casing,
destroying the electronics.
Do not use a sharp object
near O-ring surfaces.
The
surface could be damaged.
