Furuno CH-37 manual Adjustments, General Checks

ADJUSTMENTS

3.1	General Checks
		Table 3-1 General checks
	Check Item		Check point, Rating
			On-keel Installation
				Flush with keel
	Retraction tank level
			Off-keel Installation
				Above keel
			Within 1 m
	Clearance between transducer and bottom of
	retraction tank when transducer is
	completely retracted by hand crank.
				1 cm
	Transducer travel (lowered by hand crank)
	Note: When checking, a clearance of
	approximately 1 meter is required under the			Minimum 30 cm
	bottom of the transducer.
	Manual raise/lower of transducer		Transducer can be raised/lowered smoothly
			with hand crank.
	Transducer heading
			Bow mark inscribed on main shaft
			should face ship's bow.

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3-1