Furuno SEARCHLIGHT CH-250 - Manual (Page 41)

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3. ADJUSTMENTS
3.1 General Checks
Table 3-1 General checks
On-keel Installation
Off-keel Installation
Within 1 m
1 cm
400 stroke:
Minimum 30 cm
250 stroke:
Minimum 22 cm
Check Item Check point, Rating
Retraction tank level
Clearance between transducer and
bottom of retraction tank when
transducer is completely retracted
by hand crank
Transducer travel
(lowered by hand clank)
Note: When checking, a clearance
of approximately 1 meter is required
under the bottom of the transducer.
Transducer heading
Bow mark on the shaft sleeve should face
ship's bow.