Boxfish ROV Owner’s Manual
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V1.3 All rights reserved. Information and specifications may change at any time without notice.
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Appendix IV: O-ring types and spares
As with all pressure vessels, good o-ring maintenance is critical to ensure no
water ingress.
How often to replace o-rings
We recommend annual replacement of o-rings that form seals of ROV parts
that are removed or opened – definitely the tether penetrator, and other
locations depending on whether you have used them.
Care and maintenance of o-rings
Keep o-rings clean and clear of dust and dirt. Smear a tiny amount of silicone
grease on your finger and run the replacement o-ring through your (clean)
fingers to lubricate it before insertion. Don’t use too much silicone grease – it
does not form part of the seal. Only use o-rings supplied by Boxfish. If in doubt,
please call us at Boxfish for assistance.
Table of o-ring types
O-Ring Type
Boxfish
Part #
Spares in
Accessory Box
Location on ROV
14 x 1.5
MOR.014X15N70
19112607
4
External port o-rings for:
Battery ports
Vacuum port
8.73 x 1.78
OR.011BN70
19072310
8
Port caps
Tether penetrator
8 x 2
MOR.008X2N70
19112607
12
Thrusters
Lights
Accessories
183.83 x 2.62
OR.167N70
19072304
2
Rear lid (tray) face
seal*
190.18 x 2.62
OR.169N70
19072305
2
Rear lid (tray) axial
seal
* Note that some ROV customisations require a larger face seal. We will supply
these when required. For replacement ordering, please call us to confirm the
size of your face seal.
