Furuno CSH-8L 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. Use a drill with a Ø5, 120° tip. Do not drill holes
through the shaft. Use low rpm drill designed for stainless steel with cutting oil.
1-4
Rating
M10 (Diagonal 17 mm)
M10 (Diagonal 30 mm)
Ø55 mm
M6 (Diagonal 3 mm)
30 mm
O-ring
Installation of waterproofing attachment
5 mm
For tightening gland
For tightening transducer flange
Push in fully (O-ring will resist.)
Shaft
M6 Socket-set screw
(Use the wrench with diagonal 3 mm.)
Less than 2 mm
Cut level.
Remarks