Furuno CSH-8LMARK-2 Installation Manual page 12

1. MOUNTING
1.1.3 Assembly and installation of the hull unit
The hull unit is shipped disassembled as the parts shown on page 1-11 through 1-13.
Assemble the hull unit as follows:
Necessary tools
Tool
Wrench
Wrench
Pipe Wrench
Hex Wrench
1. Temporarily install the waterproofing attachment on the top of the main shaft and
drill holes for socket-set screws.
Waterproofing
attachment
a) Mark drilling point on the shaft surface by tightening M6 socket-set screws (2
pcs.).
b) Remove the waterproofing attachment.
c) Drill holes less than 2 mm in depth. The
drill bit should be stainless steel, 5, 120°
tip. Do not drill holes through the shaft.
Use a low rpm drill, and use cutting oil.
2. Fasten the raise/lower drive assembly to the
main body flange with the trunnion shaft.
Passing main shaft through the raise/lower drive assy.
1-4
Rating
M10 (Diagonal 17 mm)
M10 (Diagonal 30 mm)
55 mm
M6 (Diagonal 3 mm)
30 mm
O-ring
Installation of waterproofing attachment
Main body flange
Flat washer
Flat
washer
Trunnion shaft
Split pin
For tightening gland
For tightening transducer flange
Push in fully. (O-ring will resist.)
Shaft
M6 socket-set screw
(Use the diagonal 3 mm wrench.)
ø5 mm
Remarks
Less than 2 mm
Cut level.
Raise/lower
drive assembly