Furuno CH-500 Installation Manual page 40

1. MOUNTING
Soundome
19. Insert the supplied grease cotton (V8133L) to the flange assembly as follows:
The grease cotton is supplied with the flange assembly.
1) Remove two hex. bolts (M8 25) and flat washer from the flange assembly to
remove the cotton retainer.
2) Wrap the supplied grease cotton to the soundome shaft.
3) Mark on the grease cotton as shown in the figure below and unwrap the cotton,
then cut the cotton along the mark.
Note: Unwrap the grease cotton from the soundome shaft before cutting the
cotton. If the grease cotton is cut with the cotton wrapped to the soundome
shaft, the shaft can be damaged.
4) Wrap the grease cotton to the soundome shaft again, then push the cotton into
the flange assembly.
5) Reattach the cotton retainer.
Note: After attaching the cotton re-
tainer, confirm that the gap between
the cotton retainer and flange assem-
bly is 7 to 9 mm. If water leaks around
the cotton retainer, the grease cotton
may not be attached correctly. Reat-
tach the grease cotton.
20. Clean the supplied gasket, retraction tank flange, and flange assembly.
1-30
Flat washer
Gasket
shaft
Wrap the grease cotton to
the soundome shaft at least
three times and cut it
diagonally, as shown below.
Flat washer
Cotton retainer
Cable gland
Soundome
Tighten the cable gland
for gap of approx. 3 mm.
Transducer cable
Spread the joints of the grease
cotton so they are approx. 120°
apart, then push them into the
flange assembly.
Hex. bolt (M8×25)
7 to 9 mm
Cable gland
shaft
3 mm
Cotton
retainer
Grease
cotton
Soundome
shaft