Furuno FSV-84 - Manual (Page 14)

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1.1.5 Installing stays (anti-vibration measure)
Install stays from the top of the hull unit to the ship’s hull. The stays should be angle iron
with a size of 75
Ч75Ч9 mm or more and at least two pieces should be used; one each to
ship’s bow and stern directions. This measure must be done to prevent damage to the
transducer.
Stay fixed to crossbeam on overhead
(WRONG installation method)
Stay installed horizontally
(PROPER installation method)
90
Hull Unit
Eye Bolt
Stay
Proper installation of stays
After installing the hull unit, attach the hand crank to the location shown in the figure below.
Double-end ratchet wrench
RN2430L
Handle fixing plate 2
10-086-5742
Wing bolt
M4x10, 2 pcs.
Pan head screw
M4x10, 2 pcs.
Handle fixing plate 1
10-086-5741
Fixing hand crank to hull unit