User manual

Apply a thin, even coating of lubricant to the o-rings when they are installed and
inspected. McLane recommends Parker O-Lube, a barium-based grease made by Parker Seals,
for use with pressure housing o-rings. O-Lube is environmentally safe and can be cleaned up
with soap or mild detergent.
The motor housing has two o-rings on the end cap. There are no user serviceable parts
inside the motor housing.
Motor
Radial 2-146, BUNA-N, 70 durometer
Back-up 8-146, BUNA-N, 90 durometer
Bulkhead and Cable Connectors
The bulkhead connectors, with the exception of the connector on the motor housing, are
fabricated from glass reinforced epoxy. The motor connector is neoprene. All of the connectors
are threaded into their end caps and sealed with o-rings. These are long-term seals and do not
require regular inspection as long as the connectors and end caps are thoroughly rinsed/soaked in
fresh water after recovery. The pins and bodies of the bulkhead connectors and the sockets and
cowls of the cable connectors must be regularly inspected, cleaned, and greased to prevent leaks.
Connectors that are regularly connected and disconnected, such as those on the end cap
of the controller housing, require regular maintenance. This is particularly true of the
communications cable, bulkhead connector, and dummy plug. Apply a thin coating of grease to
all contact surfaces, including pins, sockets, cowls, and bodies. McLane recommends Dow-
Corning 55, an o-ring lubricant, for this purpose. Silicon-based products such as Dow-Corning 4
or Dow-Corning 5 are also suitable. All of these lubricants are environmentally safe and can be
cleaned up with soap or mild detergent.
Properly maintained connectors will commonly trap a small quantity of air as they are
mated. The air can cause problems and should be removed before tightening the plastic locking
shell. To remove the air, place the fingers of one hand around the top of the cowl and slide them
towards the bulkhead connector while squeezing. You should hear the air escape.
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