9. MAINTENANCE, TROUBLESHOOTING
9-13
9.12.2 How 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 above for location
of motor breaker and power lamp.)
2. Unscrew two screws to remove the cover.
3. Attach the ratchet wrench to the motor shaft, referring to the illustration below.
4. While holding the ratchet wrench, pull the release lever toward you and upward to
release the brake.
Note: Hold the ratchet wrench when releasing the brake, to prevent the transduc-
er from falling out.
5. Turn the ratchet wrench clockwise to raise the transducer.
6. After retracting the transducer into the tank, set the release lever to the holder as
shown below.
Motor
Ratchet wrench
Lower
Raise
Remove
cover
Release leve