Installation manual

Introduction

851--160117 / B

4 CHECKING THE HOISTING/LOWERING

SYSTEM

During the following procedure, there must be one person on the

bridge, and one in the sonar room to control if the

hoisting/lowering system works properly. If problems occur in

the sonar room, press the button marked ”0” on the motor

overload switch S301 (see figure 2) to stop the hoisting/lowering.

This procedure is made in duplicate, one for the person on the

bridge (chapter 4.1), and one for the person in the sonar room

(chapter 4.2). These checking lists have to be used simultaneously

in co-ordination. An asterisk (*) means that this test is made in the

”other end”.

4.1 Checking the bridge functions

Note that this checklist has to be coordinated with chapter 4.2.

j Check that the depth is sufficient for lowering of the

transducer.

j StartuptheSonarControlUnitandcheckthatthegreen

ON/OFF--HOISTbuttonlights,andthattheupperlinein

the menu shows the text TRANSD. POS: UPPER.

* Set the motor overload switch S301 in the motor control

unit to normal position by pressing the black button

marked 1”.

* Set the hoisting/lowering switch S302 in the motor

control unit to REMOTE position.

j SelecttheHullUnittoMIDDLEpositionbyashortpress

ontheLOWERbutton,andcheckifthetextLOWERING:

MIDDLE is shown in the menu. Check that both the

HOIST and LOWER buttons light during the lowering,

and that both extinguish when the transducer stops in

the middle position. The menu should now show the text

TRANSD. POS: MIDDLE.

j Press the LOWER button, and check if the text

LOWERING: LOWER is shown in the menu. Also check

thatbothbuttonslightduringthelowering,andthatonly

the LOWER button lights when the transducer stops in

the fully lowered position. The menu should now show

the text TRANSD. POS: LOWER.

j Select the MIDDLE position by a short press on the

HOIST button, and check if the text HOISTING:

MIDDLE is shown in the menu. Check that both the

HOIST and LOWER buttons light during the hoisting,

and that both extinguish when the transducer stops in

the middle position. The menu should now show the text

TRANSD. POS: MIDDLE.