Humminbird HELIX Series Installation Manual page 3

HELIX® SERIES IN-DASH MOUNTING Installation Guide
3. Install one end cap on the end of each bolt.
Installing the In-Dash Mount Bracket on the Control Head
4
| Install the Control Head
1. From the front of the dashboard, with the control head screen facing out, carefully lower the
control head diagonally into the mounting hole. Insert one end of the bracket through the hole
first.
2. Adjust the angle so the control head is centered in the mounting hole.
3. Press down lightly on the control head. Confirm the control head is seated flush against the
dash. Make adjustments, as needed.
4. From under the dash, place the bracket reinforcement plate around the back of the control
head.
5. Finger-tighten each bolt until the end cap is flush against the bracket reinforcement plate.
Then, use a 5/16" socket wrench to hand-tighten the bolts no more than 2 additional turns.
Hand-tighten only!
Do NOT over-tighten the bolts. There should be no play or gaps between the unit and the dash.
The bracket should remain straight without bending.
6. Finger-tighten each nut until the nut and washer are flush against the bracket. Fully tighten
each nut using a 3/8" wrench while holding the bolt in place. Do NOT over-tighten the nuts.
Hand-tighten only!
WARNING! Do NOT use power tools to secure the hardware.
WARNING! Do NOT over-tighten the bolts. If the bracket is bending or bowing, it is too tight.
Over-tightening the bolts may damage the control head.
5
| Route and Connect the Cables
1. See the installation guides included with each hardware component to install power and other
optional equipment.
2. Route all cables (power, transducer, accessories) to the control head and insert the connectors
into the correct ports on the back of the control head (see the illustration Connecting the
Cables).
end cap washer nut bolt
bracket
reinforcement
plate
Confirm the in-dash mount
bracket is parallel with the
face of the control head.
3
532365-3_A
Connecting the Cables