Furuno CSH8LMK2 Installation Manual page 19

1.1.4 Confirmation of transducer movement
After you have installed the hull unit, confirm that the transducer moves upward/down-
ward smoothly by using the ratchet wrench.
Note: When lowering the transducer, confirm that there is enough space below the
ship's bottom.
Turn off the POWER switch on the hull unit before manually
raising or lowering the transducer (with the ratchet wrench).
Bodily injury can result if the ratchet wrench rotates unexpectedly,
because the raise/lower motor may start up.
1. Turn off the POWER switch on the hull unit.
2. Remove four screws (M4 8) to remove the gear cover.
3. Remove two screws (M4 12) to unfasten the attachment.
4. Fasten the attachment onto the motor gear with the screws removed at step 3.
5. Turn the attachment in both clockwise and counterclockwise directions with the
ratchet wrench. Confirm that the transducer moves upward/downward smoothly.
CAUTION
Gear cover
Screw
(M4×8, 4 pcs.)
Raise/lower drive
assembly
POWER switch
Fasten the attachment
onto the motor gear.
1. MOUNTING
Gear cover
Motor gear
Screw
(M4×12, 2 pcs.)
Turn the attachment in both
clockwise and
counterclockwise directions
with the ratchet wrench.
Attachment
1-11