GPI G8 User Manual

G8 Portable Fuel Transfer Pump

Owner’s Manual

GENERAL INFORMATION

This pump is designed
for use only with gasoline
(up to 15% alcohol blends
such as E15), diesel fuel
(up to 20% biodiesel
blends such as B20) and
kerosene. Do not use
this pump for dispensing
any uids other than
those for which it was
designed. To do so may damage
pump components and will void the
warranty.

This pump is designed to operate
on a typical 12-volt DC automotive
electrical system. The pump is
designed to operate with 12-volts DC
at the motor leads and the ratings
are determined at this voltage.
Performance may vary due to length
of power cord, battery condition or
output from vehicle charging system
that will affect system voltage.

The rated duty cycle of this pump
is 15 minutes ON and 30 minutes
OFF. Allow the pump to cool for 30
minutes.

Do not leave the system running
without uids. “Dry running” can
damage the pump. If the system fails
to deliver fuel after 15 to 20 seconds,
turn the system off and refer to the
Troubleshooting Section.

NOTE: This pump is not intended for
use with an automatic nozzle.

WARNING: This product shall not be
used for pumping fuel or other liquids
into aircraft.

NOTE: An automatic bypass valve
prevents pressure build up when the
pump is on with the nozzle closed. To
avoid motor damage, do not run the
pump more than 5 minutes with the
nozzle closed.

Do not pump the tank completely
dry, as contaminants from the bottom
of the tank may enter the pump.

IMPORTANT! DO NOT RETURN
THIS PRODUCT TO THE STORE.
Please contact Great Plains
Industries, Inc. before returning
any product. If you are missing
parts, or experience problems
with your installation, contact our
Customer Support Department.
We will be happy to assist you. Call
800-835-0113 or 316-686-7361 or
email: [e-mail].

922130-01 Rev-04/2017

SAFETY INFORMATION

Observe all safety precautions
concerning safe handling of
petroleum fuels.

If using solvent to clean pump
components or tank, observe
the solvent manufacturer’s
recommendations for safe use and
disposal.

For your safety, please take a
moment to review the warnings
throughout this manual.

To prevent physical injury, observe
precautions against re or explosion
when dispensing fuel. Do not operate
the system in the presence of any
source of ignition including running
or hot engines, lighted cigarettes, or
gas or electric heaters.

Observe precautions against
electrical shock when operating
the system. Serious or fatal shock
can result from operating electrical
equipment in damp or wet locations.

Inspect external pump wiring
regularly to make sure it is in good
condition. To avoid electrical shock,
use extra care when connecting the
pump to power.

Avoid prolonged skin contact with
petroleum fuels. Use protective
goggles, gloves, and aprons in
case of splashing or spills. Change
saturated clothing and wash skin
promptly with soap and water.

Observe precautions against
electrical shock when servicing the
pump. Always disconnect power
before repairing or servicing.

Never apply electrical power to the
system when any of the coverplates
are removed.

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INSTALLATION & OPERATION

Pump Installation

Make sure all threaded fuel
connections are wrapped with three
to four turns of the supplied thread
tape.

Make sure supply tank or container
is vented. A vent cap rated at 3 psi or

less is recommended.

NOTE: These components have
not been evaluated as part of the
UL Listed Equipment and are not
intended for use in a Hazardous
(Classied) Location.

Install Inlet Hose and Strainer

Wrap the threads of one end of the
inlet hose 3 or 4 times with thread
tape (supplied). Install hose end into
inlet side of pump (see Figure 1) and
tighten. Wrap threads on other end
of hose 3 or 4 times with thread tape
(supplied). Install metal strainer and
tighten. To avoid damage to pump
from dirt and debris, do not operate
pump without strainer.

Install Outlet Hose and Nozzle

Wrap the threads of one end of the
outlet hose 3 or 4 times with thread
tape (supplied). Install hose into
outlet side of pump (see Figure 1)
and tighten. Wrap threads on other
end of hose 3 or 4 times with thread
tape (supplied). Install manual nozzle
and tighten. To minimize static
electricity build up and possible
explosion, use only static wire
conductive hose when pumping

MANUAL NOZZLE

OUTLET SIDE

INLET SIDE

Figure 1

GROUND WIRE

ammable uids. Keep the ll
nozzle in constant contact with the
container being lled during the lling
process. Sparks or static discharge
will cause explosions.

Install Ground Wire

An external ground wire is provided
for use where required. GPI strongly
recommends grounding your pump
prior to use. To attach the ground
wire, remove one of the 1/4-20 x
1/2” hex head screws and install the
ground wire ring terminal (see Figure

2). Reinstall hex head screw and
tighten securely. Attach the alligator
clamp end of the ground wire to the
earth or chassis ground of the vehicle
your are lling.

STRAINER

Connect to Power Source

NOTE: This pump is designed to
operate on a typical 12-volt DC
automotive electrical system.
DO NOT attempt to connect to a 24­volt or 115-volt electrical system.

WARNING: Carefully route the power
cord to the battery, protecting the
power cord from hot surfaces, sharp
edges or anything that could damage
the power cord, resulting in a short
circuit.

A 20-amp inline fuse is supplied on
the power cord’s red wire to protect
the motor and power cord. Connect
the red wire with red clamp to the
positive (ungrounded) side of the
power source. Connect black wire
with black clamp to the negative
(grounded) side of the power source.

Figure 2

NOTE: Power cord components,
such as the switch and fuse, have
not been evaluated as part of the
U. L. Listed equipment.

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