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9
1.3.4 Assembling and mounting of hull unit
The hull unit is shipped as the parts shown in the hull unit kit on Equipment Lists (page iv and
after). Assemble the hull unit as shown in the procedure below.
Necessary tools
Name Specification Remarks
Wrench For M10 (Hex. size 17 mm)
Recommended: double offset
wrench
Wrench For M20 (Hex. size 20 mm)
Pipe Wrench 55 mm For fixing gland
Ball Wrench Hex size 4 mm For fixing the dome
1. Calculate necessary length of main shaft from the length of retraction tank
Lt and cut off the
spare portion. When 1 m or 1.8 m long tank is used, main shaft (1.17 m or 1.97 m) can be
used without cutting off any portion.
Supplied length: 2.2 m or 3.8 m
Lt + 200 mm for 400 mm stroke
Lt + 50 mm for 250 mm stroke
Take care
not to damage.
Chamfer the edge to
protect O-ring from
damage.
2. Remove hex bolt, nut, spring washers, flat washers and trunnion pins from the main body
flange. And then, mount the raise/lower drive unit on the shaft sleeve by using the hardware
removed.