Skip to main content

Replacing the O-rings

See Hardware overview for details on accessing the O-rings.

Location of the O-rings

o-rings-installed-20250430-153729.jpeg

Battery end-cap O-rings

Inspecting O-rings

Pay attention to the following areas

  • The surface of the O-ring itself.

  • The mating surface on the inside of the case between the threads and the open end.

  • The inner surfaces of the groove in the end cap where the O-ring sits.

Any dirt should be removed by thoroughly wiping with a soft, lint-free cloth. Never use any material or tool which could scratch the O-ring or any of its mating surfaces. If dirt is present in the O-ring groove, remove the O-ring as described below to allow thorough cleaning of the groove. If an O-ring needs to be removed for any reason, it should be replaced.

If the O-ring is scratched, cut, distorted, perished or defective in any other way it must be replaced. If any of the surfaces of the O-ring groove are scratched, pitted or otherwise damaged, the logger may need to be returned to RBR for refurbishment: please contact us for advice.

Replacing an O-ring

  1. Use the plastic O-ring tool tool provided in the RBRcervata support kit to lever the O-ring from its groove. This may require some physical effort.

Do not use a metal screwdriver or any other tool which may scratch the surfaces of the O-ring groove, doing so could render the end cap unusable.

  1. Slide the O-ring out of its groove and off the logger. The O-ring may need to stretch quite a bit as it is pushed off; this requires some effort but can be done by hand.

  2. Clean the groove thoroughly with a soft, lint-free cloth and compressed air, if necessary.

  3. Inspect the O-ring groove carefully for scratches and other damage.

Take care to not scratch or damage the O-ring groove in any way. Contact support@rbr-global.com for advice if it appears damaged.

  1. Apply a light film of silicone grease to all three inside surfaces of the groove.

Be careful to not trap any dirt, hairs or lint in the O-ring groove.

  1. Select the proper new O-ring and make sure it is not damaged.

    1. The face O-ring (sealing between the flat end faces of the battery end-cap and the pressure housing) is a 2-243 N1470-70 O-ring

    2. The bore O-ring (sealing between the “plug” of the battery end-cap and the inside of the pressure housing) is an M2.0x112 N70 O-ring

  2. Lubricate the new O-ring with a very light film of silicone grease to ease installation.

  3. Install the new O-ring by pushing it into place and popping it into its groove.

  4. When the new O-ring is in place, inspect it once more for scratches and dirt.

  5. Wipe away any silicone grease deposited on the end cap.

JavaScript errors detected

Please note, these errors can depend on your browser setup.

If this problem persists, please contact our support.