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7. Place the hull unit on the attachment flange (retraction tank).
Note: Place the hull unit so that the rollers on the tank guide do not come into con-
tact with the weld bead on the retraction tank. If the rollers contact the weld bead,
adjust the tank guide position (see section 1.10.3).
8. Coat threads of the bolts with a slight amount of lithium grease to prevent scorch-
ing, then secure the hull unit to the retraction tank, referring to the following figure.
Hex nut
Hex nut
Spring washer
Flat washer
Flat washer
Hex bolt
Detailed view: Bow side (Four places)
O-ring
9. Lower the transducer, then confirm that the rollers on the tank guide are not pro-
jecting from the retraction tank.
Tank guide must be positioned 30 mm inside from the bottom of the retraction
tank.
Note: The position for the lower limit switch can be raised 100 mm by using the bolt
holes on the flange assembly.
Flat washer
Spring washer
Hex nut
Hex nut
Detailed view: Bow side (11 places), Stern side (One place)
Flat washer
Spring washer
Hex nut
Torque
230N•m
O-ring
Hex nut
O-ring
Retraction tank
Hex bolt
Torque
230N•m
1. MOUNTING
Hex nut
Hex nut
Spring washer
Flat washer
Bow mark
Flat washer
Hex bolt
1-39
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