Furuno CH-37 Installation Manual page 15

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4. Fasten the main shaft to the soundome assembly as follows:
a) Attach screw lock nut to main shaft.
b) Fully screw main shaft into the soundome neck, and then unscrew by four
turns. Coat threads with adhesive (HIGH SUPER).
c) Screw in main shaft completely and tighten the lock nut with spanner.
d) Tighten socket-set screw on lock nut.
e) Fasten two reinforce metal fittings to connect the main shaft and the
soundome assembly securely (Not using the stopper washer).
Apply adhesive
(HIGH SUPER).
Set screw
Figure 1-6 How to fasten main shaft to soundome assembly
While holding soundome neck with pipe
wrench, tighten lock nut with wrench.
Lock nut
Reinforcement
metal fittings
Reinforcement
metal fittings
1-5
M10
100
SW, PW,
Nut

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