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11. When the above tests are complete, switch the [TEST/NORMAL] switch back to
[NORMAL] on the control panel.
12. On the control unit, press the
is lowered to the half-way point. This must be done from a fully retracted position.
While lowering, check that the LED on the left of the
flashing, the limiter makes a short beep sound and once the shaft stops at half-
protrude the LED lights constantly.
13. Adjust the LTX switch setting to allow clear
transmission at half-protrusion by doing the follow-
ing. If the retraction tank has been cut at 1212 mm,
skip to step 14.
1) Use the protrude/retract controls to adjust the
transducer height until the transducer face is
fully protruded.
2) Adjust the location of the LTX switch so that the
switch lever is the same height as the top of the
transducer shaft bar.
Calculate the mid-protrusion position (A) by the
tank length (T), referring to the following formula.
• A = T - 336 mm
14. Using the same method, check that the
protrude) key and the
and light constantly as appropriate and the limit
switch beeps.
15. Press the power key on the control unit to turn the
power off and check that the transducer is retracted
automatically. At full retraction, check that the power is OFF.
16. Check that the transducer is fully retracted using the
Brake test
Check that the brake is functioning correctly using the brake release switch and the
procedure outlined below.
1. Set the toggle switch in the raise/lower control unit to MBRAKE (motor brake).
2. Make sure the brake LED is turned on.
3. Press the brake release switch and check that the shaft does not move.
If the shaft moves, the brake which is not released may be malfunction. Consult
your dealer for repairs. Also, if the shaft moves faster than the designated speed,
the 7-segment LED shows [Err0].
4. Set the toggle switch to ABRAKE (drive shaft brake), then repeat steps 2 and 3.
(mid-protrusion) key and check that the hull unit
(Full-
(Retract) key LEDs flash
3. ADJUSTMENT AND CHECKS
(mid-protrusion) key is
*: Recommended
tank length
(Retract) key.
3-7
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