Humminbird 987C SI COMBO manual

www98x Manual..reelsche531376-1 A.qxd m2/23/2005atic11:39..coAM mPage 20

5. Align the metal mounting bracket with the mounting holes. The center slot should be above the two outer slots. (This bracket and all other hardware supplied is top quality stainless steel for maximum strength and corrosion protection.) Insert the three 1" (25 mm) flat head wood screws into the drilled holes, but do not

To mount the transducer pivot assembly to the bracket:

1.	Slide the assembled transducer into the metal bracket from the bottom,
	aligning the large hole at the top of the bracket with the hole in the pivot.
2.	Insert the headed pin through the pivot holes in the bracket and pivot. The
	headed pin can be inserted from either side of the bracket.

Attaching the Bracket

completely tighten.

3. Place the nylon washer over the opposite end of the headed pin. Place the

stainless washer over the 1/4"-20 x 5/8" (16 mm) screw threads, then insert into

To attach the pivot to the transducer:

1.Attach the pivot to the transducer body, using the two 1/4"-20 x 5/8" (16 mm) machine screws, toothed washers, and square nuts. The toothed washers must fit on the inside of the transducer ears, between the pivot and the ears. The square nuts will be prevented from rotating by the pocket in the back of the pivot. An Allen wrench is provided which fits all the 1/4"-20 screws, but do not fully tighten the screws at this time.

		3
1	2	4

1 Insert the square nuts
2	Toothed Washer
3	Pivot	Attach the Pivot

4Machine Screw

the opposite end of the headed pin and finger tighten only. The screw has a

thread locking compound on the threads to prevent loosening, and should not

be fully tightened until all adjustments are made.

NOTE: The running position of the transducer is now completely adjustable. Subsequent adjustment may be necessary to tweak the installation after high speed testing.

1	5		1	Screw
3		2
			2	Headed Pin
	4		3	Allen Wrench
			4	Nylon Washer
			5	Stainless Washer

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