M4-CYGMINI-TSR-M-ENG_Iss 1
Cygnus MINI ROV Operation Manual
Page 45 of 66
Replacing the O-Ring Seals
Spare O-rings are included in the kit, the different O-rings are
marked A and B.
‘A’ O-rings
(1 pack of 10)
‘B’ O-rings
(1 pack of 10)
Silicone Grease
1.
Remove the old O-rings and destroy them
Do not use a sharp instrument to remove the O-rings as
damage to the sealing area may occur
2.
Clean the O-ring locations removing all grease and dirt
3.
Pre-lubricate the new O-rings with Silicone grease
4.
Gently fit the new O-rings into position (see page 43)
Checking the O-rings
To ensure the gauge remains water-tight these O-rings must be
checked each time you remove the battery pack or nosecone. It is
recommended to replace the O-rings if in any doubt as to their
condition or age.
Replace the O-rings at the start of a new job
Replace the O-rings after every 2-3 submersions
Check the O-rings whenever you remove the battery