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5. Before setting the hull unit on top of the retraction tank, observe the
following cautions:
• Clean the hull unit flange to make sure no foreign material falls
into the retraction tank.
• Confirm that waterproofing gasket is in place.
6. Set the hull unit on top of the retraction tank. Pass flat washer onto hex bolt and insert them
in stud bolt hole from the top of the hull unit flange. At the retraction tank, fasten the bolt
with insulation packing, flat washer, spring washer and nut, in the order shown in the figure
below.
Figure 7-6 Fastening the hull unit to the retraction tank
7. Install stays from the top of the hull unit, using the eye bolts.
Hex bolt
Flat washer
Insulation gasket
Hull unit flange
Tank flange
Insulation gasket
Flat washer
Spring washer
Nut
Stay
Post
Figure 7-7 Installing stays on the hull unit
27
Figure 7-5 Tank flange
Stay
Bolt
hole
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