Petrel User Manual 0.1
13
O-Rings
The Petrel has permanent O-rings installed in the head that are not meant to be replaced. The
head of the Petrel proper is torqued at the factory to prevent accidental opening.
The O-ring of the battery pack endcap is user-replaceable and should be visually inspected to
make sure it is properly seated in its groove. It should also be inspected for visible damage or
debris.
If the O-rings pass visual inspection and have been deployed for two months or less, they do not
need to be replaced.
If the O-rings fail visual inspection or have been deployed for longer than 2 months, they should
be replaced prior to re-deploying the Petrel.
Petrels all employ O-ring size
2-031/N70
in their endcaps.
Replacing O-Rings
To replace the O-Ring:
•
Remove the old O-ring, and clean all dirt away from the threads and grooves where it was
seated using a lint-free cloth, cleaning alcohol, and a soft-brush.
•
Apply a thin layer of seal lubricant (
MOLYKOTE 111
from Dow Corning) to the new O-ring.
•
Slide the new O-ring down over the threads of the endcap and into the O-ring groove.
It is very important to be aware of where the O-ring is sitting on the end-cap. If the O-ring is not
sitting perfectly in its groove, there will not be a perfect seal; this could cause fatal damage to
the unit.
Connector Grease (Remote Head)
The connector for every Petrel Remote Head and battery pack manufactured at Xeos is filled with
grease to protect the conductive material. If replenishing this grease, Xeos recommends
MOLYKOTE 44 Medium.
