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3. ADJUSTMENT AND CHECKS
6. Press the DOWN switch again to
continue lowering. Confirm that
the transducer stops at the mo-
ment when the EMERGENCY
STOP button is pressed. After you
have confirmed the EMERGENCY
STOP button stops the hull unit
lowering, release the EMERGEN-
CY STOP button by turning the
switch clockwise.
7. Press the DOWN switch again to continue lowering. Confirm that the transducer
stops at the moment when the lower limit switch is pressed.
During this process, via the side window on the raise/lower control box, check the
LEDs inside the casing and that the following values are displayed.
1600 mm travel
1200 mm travel
In cases where the LEDs do not display the above values, rectify the issue using
the table on the following page for reference.
Displayed values do not
change.
Displayed values are
negative.
Displayed value deviates
from normal value.
When you change the limit switch position intentionally, the LEDs do not display
the above values. If the issue cannot be rectified, the equipment may malfunction.
Contact your dealer to check the equipment.
8. Repeat the same tests while retracting the transducer.
9. Remove the ratchet wrench from its holder on the hull unit. Press the UP switch,
then the DOWN switch on the raise/lower control box to make sure the hull unit
does not move. Once you have confirmed there is no movement in the hull unit,
place the ratchet wrench back in its holder.
10. Check the following items in the control panel:
• Each of the LEDs, for UP, LTX and DN, light up when their respective limiter
switch is pressed.
• "UP" LED lights when the UP switch is pressed.
• "DOWN" LED lights when the DOWN switch is pressed.
3-6
Hull unit
Upper limit switch is ON Lower limit switch is ON
LED display
0
0
Possible cause
Cabling not connected.
Cabling is not connected
correctly.
Limit switch position has
moved.
Ratchet wrench
EMERGENCY STOP button
98 ~ 101
73 ~ 76
Remedy
Connect cabling correctly.
Re-connect cabling
correctly.
Re-position the limit switch.
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