Inspecting the transducer
The transducer surface must be inspected for potential damage that may have an effect on the operation.While the vessel is still in dry dock, the transducer surface must be inspected for potential damage that may have been inflicted during the installation.
Prerequisites
Neither tools nor instruments are required. If you find damage, you need a high resolution camera to document it.
Context
The transducer is covered with a thick red or black protective coating made of a special plastic type. The protective coating is a vital part of the transducer. It is very important that neither this coating nor the internal parts of the transducer are damaged during the handling, installation or cleaning. Any holes and/or scratches in the transducer surface will allow water to penetrate the transducer. If a leak occurs, the transducer must be replaced.
Procedure
1 Lower the transducer using the hand crank.
a Use a spanner to open the door on the Motor Control Unit.
b Locate the hand crank inside the Motor Control Unit.
c Remove the hand crank from its storage position.
d Remove the plastic plug on the top cover of the hull unit.
e Mount the hand crank onto the stub shaft through the hole in the top cover.
f Locate the brake release screw on the motor.
g Use an 4 mm Allen key to rotate the screw clockwise until the motor brake is released.
h Use the hand crank to lower the transducer.
2 Do a thorough visual inspection of the transducer.
Check for dents, scratches, holes or other damage to the surface.
Note
It is very important that neither this coating nor the internal parts of the transducer are damaged during the handling, installation or cleaning. Any holes and/or scratches in the transducer surface will allow water to penetrate the transducer. If a leak occurs, the transducer must be replaced.
3 If you find suspicious damage, take high resolution photos that show the damage.
4 Contact your dealer or the Simrad support organization for advice.
5 Use the hand crank to hoist the transducer.
a Turn the crank until the transducer is fully retracted.
b Loosen the brake release screw to engage the motor brake.
c Check with the hand crank to ensure that the motor brake is engaged.
d Remove the hand crank from the stub shaft, and mount it in its storage position in the Motor Control Unit.
6 Close the door on the Motor Control Unit.