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1. MOUNTING
5. Coat the threads of the bolts with a slight amount of lithium grease to prevent
scorching, then secure the attachment flange to the retraction tank, referring to the
following figure.
Gasket
O-ring
Insulation
packing
Flat washer
Spring washer
Hex nut
Hex nut
Detailed view for OP10-50
Gasket
Insulation
packing
Spring washer
6. Orient the hull unit so that the bow mark (inscribed) on its flange points toward the
ship's bow.
Note: If the bow mark on the hull unit flange is not facing the ship's bow, rotate the
transducer so that the bow mark on the transducer points toward the ship's bow
(see section 1.2.9).
1-38
For OP10-50
O-ring
Retraction
tank
Flat washer
Hex nut
For OP10-51/52/53
Detailed view for OP10-51/52/53
Spring washer
Gasket
Insulation
packing
Hex nut
Hex nut
Spring washer
Flat washer
Gasket
O-ring
Insulation
packing
Flat washer
Hex bolt
Hex nut
Flat washer
O-ring
Hex bolt
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