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CHAPTER 5 - INSTALLATION GUIDE
Refer to the wiring diagram in section D during installation of the
PosiGround system.
1. Pick a spot for the PosiGround controller box to be mounted. Do not
mount the controller where it can be kicked, or where it will likely be
struck by tools or equipment, or where it will be exposed to road wind
and spray. It should be mounted where its face can be easily seen by
the operator. The controller must be not be mounted on a separate
vehicle from the loading system that it is controlling, for example, if
the PosiGround is shutting down a truck engine which drives a PTO
pump, the controller must be mounted on the truck and not the trailer.
2. Install the wiring fittings into the enclosure and mount the display
enclosure using the mounting flange holes.
3. If applicable to your installation, connect the pressure port of the
pneumatic switch to the appropriate sensing point for loading control.
Contact Garnet if you are unsure about how to sense when loading is
activated.
4. If the truck does not have an existing ground cable and clamp, install
one now. Mount a second cable and clamp for the ground sense
line. In order for the first grounding reel to function correctly it must
be mounted to a clean, conductive surface using the four mounting
holes provided in the reel's base. The second grounding reel, for the
ground sense line, must be isolated which can be achieved with an
isolation plate and shoulder washers (supplied). See wiring diagram
on page 15.
5. Connect the clamp module between the end of the ground sense
cable and the ground sense clamp. The RED wire from the module
goes to the cable, and the BLACK wire from the module goes to the
clamp.
6. The system can now be wired.
Section D. Connect the controller black GROUND wire to ground, and
the controller yellow GROUND SENSE wire to the ground sense cable.
7. Connect the controller red 12V DISPLAY LIGHT wire to a 12 volt source.
This 12 volt source should be an ignition source so the truck battery is
not drained when the truck is off.
8. If applicable to your installation, connect the controller orange HORN
wire to an electrical warning horn. The controller completes a circuit
to ground when the warning horn is to sound, so one side of the
warning horn needs 12 volts provided to it, and the other side goes
to the HORN wire.
672-H Manual
Refer to the wiring diagram in
Page 23
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