Furuno CH-270 Installation Manual page 27

3. Calculate the length of the main shaft according to tank length "Lt."
4. Set the raise/lower drive assy. on the main
body flange assy. and insert trunnion pin.
5. Slide lock nut and stopper washer onto the
main shaft and transducer cable into the
main shaft.
6. Screw main shaft tightly into the neck of the
soundome. Unscrew the shaft by five turns
and coat threads with adhesive.
7. Fasten main shaft completely and tighten
lock nut with wrench.
Supplied length: 1.17 m (2.2m, 3.8 m)
Lt + 170 mm (350 stroke)
(Lt = Tank Length)
Be careful not
to damage.
Chamfer edge to
protect O-ring from
damage.
Trunnion
Pin
Main Shaft
Lock Nut
Stopper Washer
Coat with
adhesive.
Set Screw
15
Raise/Lower
Drive Assy.
Flat Washer
Split Pin
Coat with Molytone grease.