Furuno FSV25S, Operator'S Manual

Page: 144 / 163

8. MAINTENANCE, TROUBLESHOOTING
8-18
8.12.2 How to raise the transducer manually
Follow the procedure below to raise the transducer manually.
1. Open the lid on the raise/lower control box of the hull unit and turn off the motor
breaker. Confirm that the power lamp is off. (See the illustration on page 8-16 for
the location of those parts.)
2. Unscrew the motor shaft cover. See (a).
3. Attach the ratchet wrench to the motor shaft. See (b).
4. While holding the ratchet wrench, pull the release lever toward you and upward to
release the brake. See (c).
Note: Hold the ratchet wrench when releasing the brake, to prevent the transduc-
er from falling.
5. Turn the ratchet wrench clockwise to raise the transducer. See (d).
6. After retracting the transducer into the tank, set the release lever to the holder.
See (e).
7. Remove the ratchet wrench and return it to its holder. Restore the motor brake to
its normal position.
Note: Be sure to return the ratchet wrench to its holder. Otherwise the hull unit will be
stopped and the transducer cannot be raised or lowered.
WARNING
Before operating the hull unit manually,
check that the motor brake and shaft are
working properly. See section 8.13.1.
Ratchet
wrench
(a) (b)
UP
Release
lever
Holder
Lower
Raise
(d)
Set release
lever to holder.
(e)
(c)
Motor
Motor shaft cover