To get a true vertical depth reading, the transducer should be mounted parallel to the water line. A 10 degree variation is acceptable. If the hull is reasonably flat with a dead rise of 10 degree or less, mount as shown in Figure 1a. If dead rise is greater than 10 degree, mount as shown in Figure 1b.

1. Assemble the stainless steel brackets to the transducer using the hardware furnished. Do not tighten until final adjustments are made.
   
   
2. Place assembly on transom at selected location with the front of the transducer extending 1/2" to 5/8" below the bottom of the boat and with the front part against the transom. The least amount that the transducer extends below the bottom is desired. If too low, spray and turbulence will occur.
   
   
3. With transducer in place, mark location of slotted holes in brackets.
   
   
4. Drill in center of slot outline with a 9/64" (3.5mm) drill, 3/4" (19mm) deep.
   
   
5. Fasten the transducer to the transom using the #10 x 3/4" screws.
   
   
6. Before final tightening the 4 screws holding the brackets to the transducer, tip the rear edge down approximately 1/8" as shown.
   
   
7. Tighten all screws. CAUTION. DO NOT use any thread locking compound on the screws. Most products such as LOCTITE contain chemicals that attack and weaken plastics. IMPORTANT. There should be no gap between the brackets and the transducer. A wide space between these parts will cause stress on the transducer mounting ears and result in breakage with time.
   
   
8. In running the cable to the sounder, avoid proximity to other wiring on the boat, particularly ignition and alternator cables. They can be a source of noise on the sounder display.