Humminbird HELIX Guide D'installation page 3

HELIX® PORTABLE CONTROL HEAD Installation Guide
5. Secure the riser blocks to the base with the four included #8-15 x 3/4" screws. See the
illustration Installing the Riser Blocks on the Base. Hand tighten only!
CAUTION! Do not use a high speed driver on this combination of fasteners. Hand tighten only.
6. Select the gimbal bracket for your control head model.
7. Line up the mounting holes on the gimbal bracket with the screw holes on the top of the riser
blocks. Make sure the opening in the gimbal bracket arms faces away from the battery well
on the base.
Installing the Gimbal Bracket on the Riser Blocks
8. Using a Phillips-head screwdriver, secure the gimbal bracket with the four included #8 x 1 1/4"
screws. Hand tighten only!
9. Route the power cable and the transducer jumper cable from under the base and up through
the hole in the base. See the illustration Portable Base Assembly.
10. Install the gimbal knobs into each side of the control head. Tighten the knobs just enough so
you can slide the control head into the gimbal bracket arms.
11. Insert the power and the transducer jumper cable connectors into the correct ports on your
control head. Refer to the illustration that matches the number of ports on your control head.
NOTE: The control head ports are keyed to prevent reversed installation, so be careful not to
force the connectors into the wrong ports.
12. Confirm there is enough cable slack to allow the control head to pivot through its full tilt range
and for connecting or disconnecting the cables. Carefully pull the excess cable from beneath
the portable base.
13. Disconnect the cables from the control head. Slide the control head out of the gimbal bracket
and set it aside.
It is important to note the amount of cable you will need to reconnect to the control head when
you install it on the portable base later in the installation.
2
| Routing the Cables in the Base
In this procedure, you will route the power and transducer jumper cables on the underside of the
base and attach the tie-down straps that will be used to secure the battery to the base in a later
procedure.
screw
battery well
532503-2_A
Installing the Riser Blocks
on the Base
Portable Base Assembly
opening cables routed
in bracket behind the
arms bracket
Control Head with 3 Ports
COM (communications)
power transducer
Control Head with 4 Ports
(includes Ethernet)
COM (communications)
Ethernet power transducer
3
install each
riser block
with the
narrow end
facing up
screw