AP-2
APPENDIX 2 FRP TANK INSTALLA-
TION
Keep the following points in mind when installing the FSV-25 inside a FRP tank.
• FURUNO does not supply any type of FRP tank.
Keep in mind the structural integrity and waterproofing of the vessel when fabricating a FRP
tank. FURUNO takes no responsibility for the fabrication or design of the FRP.
• The FRP tank flange must be as smooth as possible. Peaks and troughs should be 0.5 mm or
less.
• The term “liquid gasket” refers to the sealant recommended by the fabricator.
• Use a Joint Sheet equivalent to “Tombo No. 1995 CLINSIL - Brown” as the waterproofing gas-
ket.
Prepare the following items:
Installation
1. Clean the retraction tank flange using a cloth and ethyl alcohol. Allow the area to dry before
moving to the next step.
2. Apply a coat of liquid gasket to the retraction tank flange.
Apply extra liquid gasket to the inner edge of the flange, to
prevent water leakage. (See figure to the right.)
3. Place the waterproofing gasket on the liquid gasket, then
apply an even coat of liquid gasket over the waterproofing
gasket.
4. Clean the hull unit flange, taking care not to drop anything
on the retraction tank flange.
• Spanner - M20 with opposite side of 30 mm.
• Ethyl alcohol - 99.5%.
• Waste cloths - Appropriate amount.
• Lithium grease - Daphne Eponex No.2 or equivalent.
• Liquid gasket - ThreeBond TB1184 or equivalent.
ø680±0.
3
3
ø
60
0
24-ø23
ø7
6
0
Waterproofing gasket dimensions
1
2
Liquid gasket
Waterproofing gasket
FRP tank
Bolt hole
To Next Page
