Humminbird 900 Series, 997c Combo manual Access Under Mounting Location

3.Use electrical tape to secure the NMEA pigtail to the cable as shown.

NOTE: Leave the NMEA pigtail secured to the cable unless needed. This will make removing the receiver easier.

4.Route the GPS receiver cable through the stem and continue with the planned route you chose in step 1.

5.Attach the GPS receiver to its base using the included #6 - 7/8" screws.

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1	NMEA Pigtail Taped	3	Mounting Screws
2	NMEA Pigtail Cable Out	4	Cable Route

Access Under Mounting Location

Follow these steps to deck mount the GPS receiver when routing the cable down through the mounting location:

1.Determine the best location, then test route the 20' (6 m) cable from the mounting location to the control head.

NOTE: Installation details may vary with unit configuration.

2.Mark the mounting location and drill a 3/4" (19 mm) hole for the cable and cable plug. Route the cable.

3.Cover the cable hole with the receiver. Make sure the receiver is flush on the surface and mark the two mounting holes with a pencil or punch.

4.Move the receiver to the side and drill two pilot holes using a 9/64" (3.5 mm) bit.

NOTE: Remember to caulk or seal screw holes and drilled holes as needed to protect your boat from water damage.

5.Align the GPS receiver screw holes over the pilot screw holes and attach with the #8 - 1 1/4" Phillips head screws. Hand tighten only!

NOTE: If the mounting surface is thin and made of a lighter material, a backing material may be needed below the mounting surface.

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