The hull unit is lubricated as a part of the production process, and thus provided fully lubricated when delivered to the
vessel.Additional lubrication of the hull unit must only take place when required.Even when the transducer shaft sleeve is fully lubricated, small air pockets may expand if the CS90 is used in a very warm climate.In some cases, these air pockets have made it difficult to lower and hoist the transducer.
Prerequisites
The following specific tool is required for this task:
•
Adjustable spanner (Wrench)
Context
The transducer shaft sleeve is vented as a part of the "setting to work" process after installation.The procedure can be repeated if the movements of the transducer shaft are perceived as slow.
Procedure
1
Locate the pressure release plug.
2
Open the pressure release plug slightly to allow pressurized air to escape.