User manual STANDARD HORIZON P58 INSTALL GUIDE

[. . . ] Headroom required on a stepped transom Figure 2. Mounting location on single drive boat 75 mm (3") minimum beyond swing radius AIRMAR pivot post (2) slot (2) machine screw (2) ® Mounting & Adjusting 1. Apply marine sealant to the threads of two, #10 x 1-1/4", self-tapping bracket screws to prevent water seepage into the transom. Be sure the nuts are in the slots in the back of the bracket and any shim(s) is in place (see Figure 3). [. . . ] Place the 9° shim and bracket assembly on top. · Small aluminum and fiberglass boats (20° transom angle)-- Use the 9° shim with the taper up. If your boat is capable of speeds above 20kn (28MPH), install the bracket with only the 4. 5° shim, taper up. · If you are unsure about using the shim(s), do one of below: · Measure the transom angle of your boat using a digital level or bubble level and protractor. Then follow the instructions for your transom angle. · Experiment with the shims by following the instructions "Mounting & Adjusting". 2 AIRMAR cable cover ® cable clamp 50mm (2") parallel to waterline Hull projection 0­3mm (0­1/8") Figure 4. Vertical adjustment and cable routing 13° transom angle 14° ­17° angle 3° transom angle 9° shim with taper down 20° transom angle 4. 5° shim with taper up parallel May improve operation above 20kn (23MPH) 4. 5° shim with taper down slight angle May improve operation above 20kn (23MPH) 4. 5° shim with taper down nearly parallel May improve operation above 20kn (23MPH) 9° and 4. 5° shims with tapers down slight angle May improve operation above 20kn (23MPH) angle more angle more angle more angle Figure 5. Multisensor angle adjustment AIRMAR ® 4. If the performance improves while turning to the side on which the multisensor is installed, its position probably needs adjustment. The multisensor is probably in aerated water. To improve performance, try the following one at a time in the order given. Increase the multisensor's angle in the water. Review "Plastic Shims" and see Figure 5. Move the multisensor farther into the water in increments of 3mm (1/8") (see Figure 4). Move the multisensor closer to the centerline of the boat. Fill unused screw holes with marine sealant. 5. If a hole has been drilled in the transom, open the appropriate slot in the cable cover. Position the cover over the cable where it enters the hull. At each of the marked locations, use a 3mm or 1/8" bit to drill a hole 10mm (3/8") deep. To prevent drilling too deeply, wrap masking tape around the bit 10mm (3/8") from the point. Apply marine sealant to the threads of the #6 x 1/2" self-tapping screws to prevent water from seeping into the transom. [. . . ] Surfaces exposed to salt water that do not interlock, must be coated with anti-fouling paint. Never use ketonebased paint, since ketones can attack many types of plastic possibly causing damage to the multisensor. Apply paint every 6 months or at the beginning of each boating season. Be sure the ends of the shaft are flush with the housing. [. . . ]