476671/B
109
Hull unit familiarization (MF90)
The hull unit is used to lower the transducer down below the ship’s hull when the MF90
system shall be used. When the MF90 system is turned off, the transducer is hoisted for
protection.
The upper parts of the hull unit include the mechanical
gantry, the hoist motor, the hoisting spindle and the
Motor Control Unit. The transducer shaft is supported
by the gantry, and penetrates the transducer shaft
sleeve and the mounting flange. The complete assembly
is mounted on the top of the installation trunk. The
transducer is bolted to the bottom of the transducer
shaft. The transducer cables are placed inside the
transducer shaft.
A
Location of the Upper Limit Switch
B
Location of the Lower Limit Switch
C
Transducer cable with plug
D
Transducer shaft
E
Grease nipple with pressure release plug on the
other side
F
Air release valve
G
Hoisting motor
H
Motor Control Unit
I
Gantry
J
Mounting flange
K
Installation trunk
L
Transducer
Related topics
Installing the hull unit, page 99
Setting to work, page 186
Starting up the hull unit, page 201
Summary of Contents for Simrad MF90
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