VEMCO - VR2AR / VR2AR-X Manual
15 March 2019
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8.2
VR2AR case related troubleshooting
8.2.1
The threads have been damaged
It’s very important that the threads on the end-cap are not dented or the outer cylinder will not thread onto the
end-cap properly. If the threads on the end-cap are slightly dented, use a sharp knife, such as an X-Acto
knife, to remove the deformed plastic until the sides of the thread are smooth and below the normal line of the
thread. It is important that there is nothing sticking out of the thread to damage the thread on the outer
cylinder or prevent the case from closing.
8.2.2
I think the case might be pressurized
When handled correctly, the VR2AR pressure case and seal have a static depth rating of 500 meters (730 psi).
If the receiver experiences a pressure greater than this, then water may enter the case. NOTE: Physical
shocks to the receiver, such as bumping into a solid object, when it is at any depth can result in a considerably
higher pressure on the casing than just the depth pressure. Also, if the O-rings or their mating surfaces are
dirty or damaged, then water may enter the receiver case.
If water enters the receiver case under high pressure and the Release Valve was unable to open and equalize
the pressures, then some water and compressed air may still be in the case when it is returned to the surface.
This can be identified by its increased weight and a sloshing sound when the case is moved. The VR2AR
case will also be very difficult to open, if at all possible. If you are suspicious there is compressed air in the
receiver case, then check for air or water leaking from seam in the case where the end-cap and outer cylinder
meet.
To check for...
Do this
water leakage
dry the seam completely and watch for drops of water around
the seam
air leakage
spread soapy water around the seam and watch for bubbles
indicating air escaping
If air and/or water are found leaking from the receiver case, do not attempt to remove the end-cap. Instead,
place the receiver in a safe place and cover it with a protective layer of towels, tarpaulins, etc. until the
leaking stops. If water is still in the case after the air and/or water have finished leaking from the
case, then attempt to open the case with the steel rod kit. If it will open, do so very slowly to allow
the compressed air to escape. If the case will not open using the steel rods, then it is under a greater
pressure than will allow the case to open. Contact VEMCO for further instructions.
When the pressure has been released from the VR2AR case, carefully unscrew the end-cap from the outer
cylinder (section 5.1.1). Use fresh water to rinse the internal parts of the VR2AR while avoiding skin contact
with any battery electrolyte that may have escaped from the battery.
Do not attempt to re-use the VR2AR receiver after water has been inside the case. The internal casing
protecting the electronics is not waterproof and the electronics have been destroyed by contact with water.
