Installation manual

Simrad SD570 / Base version
4
851--160117 / B
2 THE HULL UNIT
2.1 Starting up the Hull Unit
WARNING ! Before starting up the equipment on a launched ship,
make sure that there is sufficient depth for the
transducer to be lowered. If starting up the equipment
on board a docked ship, check both under the ship and
inside the sonar room that neither persons nor things
are in the way for the transducer or the lowering and
hoisting machinery.
j Use a spanner to open the door on the motor control unit
which is mounted on the Hull Unit.
j Release the motor overload switch S301 in the motor
control unit by pressing the red button marked ”0” (see
figure 2).
j Set the hoisting/lowering switch S302 in the motor
control unit to STOP position.
j Unscrewthetiming belt coveronthe topofthe HullUnit
(see figure 3). Locate the hand crank inside the motor
control unit. Fasten the hand crank to the hoisting
spindle and lower the transducer manually
approximately 20 cm (8”).
j Remove the hand crank from the spindle, but do not
replace it in the motor control unit!
j RemountthetimingbeltcoveronthetopoftheHullUnit.
j Setthehoisting/loweringswitchS302toHOISTposition,
and check that the hoisting contactor K301 is activated
when pressing the hand crank safety switch S303.
j Set the hoisting/lowering switch S302 to LOWER
position, and check that the lowering contactor K302 is
activated when pressing the hand crank safety switch
S303.
j Set the hoisting/lowering switch S302 to STOP position.
j Replace the hand crank to its storage position in the
motor control unit.
j Activate the hoisting contactor K301 by setting the
hoisting/lowering switch S302 to HOIST position, and
check if the contactor is deactivated when pressing the
upper limit switch S304 upwards (see figure 3).