Furuno gp-330b User Manual

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1.4 Mounting
1.4.1 Pole/Rail (Pipe) Mount
The nut assembly supplied has standard 1-14" UNS threads that can be screwed 
to a standard marine antenna mount, extension pole, or rail-mount bracket. Before 
beginning the installation, plan for securing the pole/rail bracket to the boat and 
purchase locally all the necessary hardware. It may be helpful to fasten the
pole/rail bracket to the boat before proceeding.
1. Unscrew the mount base (part C) from the surface bracket (part E). (The sur-
face bracket is not used in this installation. See the next page for part (E)).
2. Remove the label from the GPS receiver’s socket (underside of receiver). The 
label may be discarded.
Fasten the mount base (part C) to the GPS receiver (part A) with the supplied 
two panhead screws, flat washers and spring washers. The torque for the 
screws is 1.35 N
Q
m.
3. Decide if you want the cable to exit through the center or along the side of the 
pole/rail bracket. Slide the nut assembly (captive nut and adaptor) onto the 
cable at the 9-pin GPS connector end. Do not connect the GPS receiver at this 
time.
1) Center exit—Pass the instrument connector end of the cable down through 
the center of the pole. Be sure to leave several inches of cable extending 
beyond the nut assembly.
2) Side exit—Place the cable side-exit adaptor (part D) over the cable. Being 
sure the cable is passing through the slot in the side, screw the nut assembly 
onto the adaptor. Hand-tighten onlyDo not over tighten. 
Note: Use the adaptor supplied as it has smooth edges that will not chafe the 
cable. Do not use a purchased part.
CAUTION: If you use a thread locker, use teflon pipe thread tape. Do not use a 
liquid thread locker as it may weaken the plastic, causing it to swell and crack.
4. Screw the  extension pole/rail bracket onto the nut assembly / cable side-exit 
adaptor. Hand-tighten onlyDo not over tighten.
GPS receiver (part A)
Mount base (part C)
Panhead screw (2 pcs.)
GPS connector
Cable side-exit
adaptor (part D)
Alignment tab
Captive nut
Slot for cable exit
1)
2)
Flat washer (2 pcs.)
Spring washer (2 pcs.)
Adaptor
Nut
Assembly