GPI MR 5-30 Owner's Manual

General Information ������������������ 2
Safety Instructions �������������������� 2
Installation �������������������������������� 2
Operation ���������������������������������� 3
Calibration �������������������������������� 4
Maintenance ����������������������������� 4
Troubleshooting ������������������������5
Specications ��������������������������� 5
Illustrated Parts List ������������������ 6
Parts and Service ��������������������� 7

TABLE OF CO NTENTS

5252 East 36th Street North
Wichita, KS USA 67220-3205
TEL: [phone]
FAX: [phone]

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SA VE THESE INSTRUCTIONS

MR 5-30 A viation

Fuel Meter

Owner’s Manual

To the owner…

Congratulations on receiving your GPI
MR 5-30 Meter� We are pleased to provide
you with a meter designed to give you

maximum reliability and efciency.

Our business is the design manufacture,
and marketing of liquid handling,
agricultural, and recreational products� We
succeed because we provide customers
with innovative, reliable, safe, timely, and
competitively-priced products� We pride
ourselves in conducting our business with
integrity and professionalism�

We are proud to provide you with a quality
product and the support you need to
obtain years of safe, dependable service�

President

Great Plains Industries, Inc

10/11 Rev� - 922092-09

GENERAL INFORMATION

The purpose of this manual is to assist
you in installing, operating and main­taining your mechanical fuel meter�
Please take a few moments to read
these instructions before installing and
operating your fuel meter�

The MR 5-30 Mechanical Fuel Meter is

designed for the eld measurement of

thin viscosity petroleum fuels only and
intended for use with pump systems
in the 5 to 30 GPM or 19 to 114 LPM

ow range (not intended for gravity
ow systems). Using mechanical gears,
these meters translate ow data from a

nutating disc into calibrated units which
are indicated on the face of the meter�
This meter is factory calibrated for kero-

sene grade (JET A). Field calibration
feature is available for other uids, see

Calibration section�

For ground-based refueling only.
Do not use in or on the aircraft.

Use this meter with aviation gasoline
(AVGAS 100LL) and kerosene grade
(JET A).

Do not use this equipment for dis-

pensing any uids other than those

for which it was designed. To do so
may damage the meter and will void
the warranty.

SAFETY INSTRUCTIONS

The following safety
alert symbols are used
in this manual.

DANGER

DANGER indicates a hazardous
situation which, if not avoided, will

result in death or serious injury.

WARNING

WARNING indicates a hazardous
situation which, if not avoided, could

result in death or serious injury.

CAUTION

CAUTION indicates a hazardous
situation which, if not avoided, may
result in minor or moderate injury.

It is your responsibility to:

• know and follow applicable na­tional, state and local safety codes
pertaining to installing and operat­ing electrical equipment for use

with ammable liquids.

• know and follow all safety precau-

tions when handling petroleum
fuels

• ensure that all equipment op­erators have access to ade­quate instructions concerning
safe operation and maintenance�

1�

DANGER

Observe precau-

tions against re or explosion when

dispensing fuel� Do not operate
the meter in the presence of any
source of ignition including run­ning or hot engines, lighted ciga­rettes, or gas or electric heaters�

2�

WARNING

Any components
such as hose, nozzle, or pump
added to your meter must be
statically grounded and approved
for use with petroleum fuels�

3�

WARNING

Avoid prolonged
skin contact with petroleum fuels�

Use protective goggles, gloves,

and aprons in case of accidental
splashing or spillage� Change
saturated clothing and wash skin
contact areas promptly with soap
and water�

2

WARNING

INSTALLATION

Before installing your meter , review the
safety instructions given above� Exam­ine your meter to make sure there are
no visible signs of shipment damage�
Plan your meter installation by review­ing the following procedures� Your sys­tem must be mounted on a vented tank�
If the tank is unvented, your local dealer
or distributor can supply a pressure cap�

If the meter is located in a rigid piping

system where the uid is trapped (for
example, by gravity, valves or nozzles)

thermal expansion of the fluid can
create pressure spikes that can damage
a meter�

Install a thermal relief valve or otherwise

allow for thermal expansion of the uid.
Prior to installation, determine the tting

angle desired and whether horizontal or
vertical orientation is required�

Rotate Fittings

To rotate inlet and/or outlet fittings,
remove the two nuts and bolts that

secure each tting. Rotate the tting to

the desired orientation� Make sure the
O-ring is fully seated� Tighten the nuts
and bolts snugly�

C

hange Orientation

1� Pull the knob to remove from unit�

Remove screws that hold bezel in
place and set aside�

2� Remove the two screws that hold

the faceplate in place and remove
faceplate. (Figure 1)

3� Remove two screws to release

the counter assembly. (Figure 2)

4� Remove the bevel gear from the

center of the coverplate� Remove
the eight pairs of nuts and bolts
that hold the coverplate assembly
in place�

5� Now you can rotate the coverplate

to the desired orientation�
Reassemble in reverse order,
making sure the O-ring is fully
seated� T orque eight nuts and bolts
to 60 - 72 in-lb�

Meter Installation

1� Remove protective plugs from the

meter inlet and outlet ports�

2� Wrap threaded male connections

with thread tape or use a pipe
sealant compound compatible with
petroleum fuels� We recommend

thread sealant at the inlet tting in

horizontal orientation�

3� Install the meter on the pump using

an appropriately sized nipple� The

meter’s ow path is marked on the

housing exterior with an arrow point­ing toward the outlet port�

4� Install other system components on

the meter and tighten snugly�

OPERATION

ALWAYS FOLLOW SAFETY
PRECAUTIONS WHEN OPERATING
THIS EQUIPMENT. REVIEW THE
SAFETY INSTRUCTIONS. Before

each use, visually check the meter to
ensure it is securely connected to other
system components and there is no
leakage� Promptly wipe spilled fuel from
the meter’s exterior and other system
components�

3

Figure 1

Figure 2