Macnaught FTWM120-001 User manual

Instruction Manual
REV 03/11/22
WARNING:
Read carefully and understand all INSTRUCTIONS before operating. Failure to follow the safety
rules and other basic safety precautions may result in serious personal injury.
Save these instructions in a safe place and on hand so that they can be read when required.
Keep these instructions to assist in future servicing.
Wall Mounted Pump Kit

GENERAL SAFETY REGULATIONS
WARNING: The warnings, cautions, and instructions
discussed in this instruction manual cannot cover all
possible conditions or situations that could occur. It
must be understood by the operator that common
sense and caution are factors that cannot be built into
this product, but must be supplied by the operator.
1. Keep the work area clean and dry. Damp or wet work areas can result in
injury.
2. Keep children away from work area. Do not allow children to handle this
product.
3. Use the right tool for the job. Do not attempt to force small equipment to do
the work of larger industrial equipment. There are certain applications for
which this equipment was designed. It will do the job better and more safely
at the capacity for which it was intended. Do not modify this equipment, and
do not use this equipment for a purpose for which it was not intended.
4. Check for damaged parts. Before using this product, carefully check that it
will operate properly and perform its intended function. Check for damaged
parts and any other conditions that may affect the operation of this product.
Replace damaged or worn parts immediately.
5. Do not overreach. Keep proper footing and balance at all times to prevent
tripping, falling, back injury, etc.
6. DO NOT use the equipment when tired or under the influence of drugs,
alcohol, or medication. A moment of inattention while operating this
equipment may result in serious personal injury.

DECLARATION OF CONFORMITY
IN ACCORDANCE WITH THE DIRECTIVES
89/392/CEE - 91/368/CEE - 93/44/CEE – 89/336/CEE – 92/31/CEE
THE MANUFACTURER:
MACNAUGHT AMERICAS
[phone] | [email protected]
DECLARES THAT THE FOLLOWING PUMP MODELS:
FTWM120-001
To which this declaration refers, conform to the following applicable regulations:
EUROPEAN REGULATIONS:
EN292-1-92 – Safety of Machinery – General Concepts, basic principles for design – terminolo-
gy, basic methodology
EN292-2-92 – Safety of Machinery – General Concepts, basic principles for design – specifica-
tions and technical principles
EN294-93 – Safety of Machinery – safe distances to prevent the operator’s upper limbs from
reaching dangerous areas
EN60034-1-2000 – Rotating electrical Machinery – nominal and functional specifications
EN60034-5-2001 – Classification of grades of protection for the housings of rotating electrical
machinery
EN61000-6-3 – Electro – magnetic compatibility – generic emission standards
EN61000-6-1 – Electro – magnetic compatibility – generic immunity standards
EN55014-1-00(A1/99-A2/99) limits and methods for measuring radio disturbance characteris-
tics
EN55014-2-97 – Electrical motor – operated and thermal appliances for household and similar
purposes, electric tools and similar electrical apparatus
EN60204-1-98 –safety of machinery – electrical equipment of machines
INTRODUCTION
The diesel transfer pump kit has been designed for the delivery of fuel from an open surface
tank. The pump mounted on a bracket for wall or tank mounting. This manual, apart from giving
all necessary information on ordinary maintenance and supporting engineers in failure
detection and repair, should also give all the information’s needed to fully employ the capacity
of the machine, as well as to the user’s needs.
PRELIMINARY INSPECTIONS
Before the power connection is done, verify the conductors aren’t live and general switches are
off.
DISMANTLING AND DISPOSAL PROCEDURE
The metallic parts which the machine is mainly made of will be dismantled and sent to the steel
mills. The fuels in the tanks of the installation will be collected and sent to an authorized
disposer. All plastic and non-degradable material parts will be separately collected and sent to
an authorized disposer or recycled.
E1

SAFETY DEVICES
GENERAL SWITCH
It is placed on the motor body and allows the operator to set it on standby in a very short time.
Once the machine is stopped, the whole starting procedure can be repeated.
HARMFUL FUNCTIONS
The noise from the machine is below 70 dB (A).
HARMFUL EMISSIONS
Steam emission is so reduced to result irrelevant.
FIRE PREVENTION
1. In case of fire never use water, but extinguishing powders charged with CO2 cat. A-B-C-D
only, employing the extinguishers placed next to the machine. Combustion of paints and
plastic parts may produce toxic emissions: use the normal precautions to be employed in
case of fire (always refer to the security supervisor of the place of installation).
3. MAXIMUM BY-PASSING TIME: 3 MINUTES.
4. DO NOT RUN WITHOUT FLUID.
DUTY CYCLE FOR DC PUMPS
Extreme operating conditions with working cycles longer than 30 minutes can cause the motor
temperature to rise, thus damaging the motor itself.
Each 30-minute working cycle should always be followed by a 30-minute power-off cooling
phase.
NOTICE:
THE VISION IS BUILT PAYING MAXIMUM CARE TO USER’S AND MAINTENANCE
ENGINEER’S SECURITY.
E2

TECHNICAL DETAILS
SAFETY PRECAUTIONS
1. During Diesel delivery always wear oil resistant and always wash hands with water and soap at
the end. Always clean at once fuel stains to avoid slips and/or pollution.
2. Use particular care with the zones next to the controls.
3. When cleaning, and specially when removing dust or waste, always wear suitable clothes, if
possible use aspirators only. Always use suitable clothes or protective devices. Never place
hands or limbs under moving parts.
SYSTEM DESCRIPTION
Functional Description
The diesel transfer system are hydraulic machine tools which feed with a given capacity (volume)
of fluid in the time unit, a collecting tank, sucking the liquid from an open surface feed tank; the
allowed suction lift (geodetic suction lift Hga) is also a specific characteristic of the pump. The
system is composed by complementary equipment, operating as whole to give a complete
service:
1. Diesel pump
2. Manual dispensing nozzle
3. 2M suction hose with filter
4. 4M delivery hose
MACHINE DESCRIPTION
The wall mounted pump kit has been designed and built according to the following standards:
1. Electric requirements: EN 60204-1 and EN 60529
2. Mechanical requirements: EN 292-1 and EN 292-2; EN 55081-2, EN 55011C/A
3. Other requirements 89/392 CEE
ALLOWED AND FORBIDDEN USE
1. Diesel transfer unit has been designed and built for DIESEL TRANSFER ONLY from reservoirs,
tanks and drums.
2. It is strictly forbidden to employ it to transfer liquids of different kind as gasoline, explosives and
corrosives (or flammable), alimentary liquids.
3. The machine isn’t designed for employment in the explosive environment.
4. Operating the pump is forbidden to children and disabled person.
5. It is forbidden to employ the unit next to flammable liquids (gasoline, alcohol, etc.).
6. It is forbidden the employment in closed environments in presence of gasoline, LPG, methane
fuelled vehicles.
TRANSPORT AND UNPACKING
Due to its weight and dimensions, the unit can easily be transported by hand. Control that the
package is good conditions and verify that the unit isn’t damaged. Each failure must be noticed in
10 days from receiving the machine.
For correct unpacking carefully follow these instructions:
1. Place the case on the ground following the indications on the package.
2. Carefully open the case, remove the machine and place it on the ground or on a steady
surface.
3. Control that the machine and its accessories aren’t damaged.
Item No.
FTWM120-001
Current
AC
Voltage
120V
Power
1100W
Electrical Power
15111200 120LPM/32GPM
Flow RateModel of Meter
E3

4. Check and tighten the screws which connect the pump and the board, pump and meter. For a
better employment the unit should be placed as near as possible to level of liquid to be
pumped. (Max. distance 2m).
5. Screw the delivery hose on the fitting of the flow meter and of the filling gun.
6. We suggest using a diesel resistant rubber or plastic suction hose; spiral shaped, with minimum
as 25mm internal diameter, the same as the union. The hose must be sealed to avoid leakage.
In case a 4 meters or longer hose is employed we suggest to use the foot valve with filter.
USE AND STARTING
STARTING
Once the hoses are sealed, the feeding cable is connected and the filling gun is in rest position,
the machine can be started. After placing the hose into the tank and the gun into the filling hole,
start the pump, gradually release the lever and start Diesel transfer. Once the filling is done
release the control of the gun and switch the pump off. When the pump isn’t in use disconnect it.
FLOW METER
1. The flow meter shows how many litres of liquid were pumped by the unit. Be aware that this
device is not suitable to measure products for resale.
2. The mechanical flow meters indicate the partial (resettable) and total (no reset function) of the
litres pumped. Each time the instrument must be reset, turn the knob on the left of the unit until
all zeroes are displayed.
Calibration
The meter used in the pumping unit is calibrated at the factory. Calibration is recommended upon
initial use, after disassembly or significant wear. Meter calibration can be easily changed with the
procedure hereafter. The proving container should be at least 50 litres.
Procedure:
Fill container to a know volume
Turn the calibration screw
+Clockwise to increase the number of liters counted
-Counterclockwise to decrease the number of liters counted
1. The gunlock has been provided to make filling easier. It is forbidden to leave the gun unattend-
ed to avoid overflow.
2. Don’t operate the machine if there is no liquid inside. Don’t start the pump before connecting
suction and delivery hoses.
3. Once the gun is closed switch the motor pump off as soon as possible. THE PUMP HAS TO
WORK IN BY-PASS CONDITION FOR SHORT PERIOD: MAXIMUM 3 MINUTES.
4. In case of current losses the pump should be switched off and the plug disconnected.
5. It is strictly forbidden to use the pump with wet hands, barefooted or dipped in water.
6. In case of blackout switch the pump off and disconnect the plug to avoid unexpected starts with
liquid overflow.
7. When transferring from open-air tanks, we suggest to place the machine as far as possible to
avoid sprays and sudden dips which may cause serious damage.
MAINTENANCE
Each kind of disassembly should always be carried out when the machine is stopped, the plug
is disconnected and after emptying the pump and the flow meter. For a better operation control
every three months that there isn’t any kind of debris in the flow meter filter.
E4

OPERATIONAL PROBLEMS
MECHANICAL RISKS
1. Mechanical parts subject to wear
The blades
The bearing
The rotor
These parts should be replaced with original spare parts by qualified personal only or in
authorized service centres.
2. Risks due to extreme temperatures
Remember that a very low temperature can freeze the Diesel inside the pump. This situation
can cause serious damage to the motor pump unit.
3. A very high temperature (about 45°C) may cause the plastic parts in the unit to expand. The
unit should thus be placed in a well-ventilated place and protected from the sun.
LIMITED WARRANTY
1. Macnaught warrantees this product against defects in material and craftsmanship, for a
period of two years from date of purchase, but not including wearing parts.
2.
Macnaught’s liability is limited to replacement or repair of defective material within the warranty
period, when returned freight prepaid to the distributor or their designated service depot.
3. The warranty does not cover damage caused by accident, misuse or faulty installation.
4. The product must be installed and maintained in compliance with the instructions.
ACCIDENTS
The pump doesn’t
work.
The pump works
doesn’t deliver
liquid.
CAUSES
1. Jammed shaft.
2. No electric feeding.
1. The pump sucks air from
the suction hose.
2. Air inside the pump.
REMEDIES
1. Disconnected the plug; unscrew on the pump,
remove the pump body and clean it inside.
Control that the shaft is now working correctly.
Reassemble the pump.
2. Control that the plug is correctly connected
and that the socket is live.
1. Control the suction hose seal on the pump.
Verify that the hose is completely immersed
into the liquid and free from chokes.
2. Control that the filter is clean. Ensure the
suction height less than 2M.
E5

Part No.
1
2
3
4
5
7
Description
Latex Washer
Nut
Bolt M12
Gun base
Board
Meter
Q’ty
4
4
1
1
1
1
Part No.
11
12
13*
14*
15
16
Description
Hose Connectors
Pump
Inlet
Outlet
Nozzle
Bolt
Q’ty
1
1
1
1
1
4
* Wearing parts.
EXPLODED AND PARTS LIST
E6

TECHNICAL DETAILS
OPERATING CONDITIONS
ENVIRONMENTAL CONDITIONS
1. TEMPERATURE: min. -20°C / max. +60°C.
2. RELATIVE HUMIDITY: max. 90%.
The temperature limits shown apply to the pump components and must be respected to
avoid possible damage or malfunction.
ELECTRICAL POWER SUPPLY
1. Depending on the model, the pump must be supplied by a single-phase alternating current
line whose nominal values are shown in the table in Paragraph C1 – ELECTRICAL
SPECIFICATIONS.
2. The maximum acceptable variations from the electrical parameters are:
- Voltage: +/-5% of the nominal value
- Frequency: +/-2% of the nominal value
Power from lines with values outside the indicated limits can damage the electrical
components.
WORKING CYCLE
The pumps are designed for continuous use under maximum back pressure.
Functioning under by-pass conditions is only allowed for brief periods of time (2-3min-
utes maximum).
FLUIDS PERMITTED / FLUIDS NOT PERMITTED
PERMITTED
1. DIESEL FUEL at a VISCOSITY from 2 to 5.35 cSt (at a temperature of 37.8°C) .
2. Minimum Flash point (PM): 55°C.
NOT PERMITTED
Item No.
17310801
17311000
17311200
17330900
17331200
Current
AC
AC
AC
AC
AC
Voltage(V)
230
230
230
120
120
Frequency
50/60Hz
50/60Hz
50/60Hz
60Hz
60Hz
80LPM
100LPM
120LPM
25GPM
32GPM
450W
750W
1100W
450W
1200W
1"
1"
1"
1"
1"
Nominal (*)
POWER
Inlet/outlet
Connection
Flow Rate
ELECTRICAL POWER
Description
Gasoline
Inflammable Liquids With Pm<55°C
Liquids With Viscosity>20cst
Water
Food Liquids
Corrosive Chemical Products
Solvents
Related Dangers
Fire – Explosion
Fire – Explosion
Motor Overload
Pump Oxidation
Contamination Of The Same
Pump Corrosion, Injury To Persons
Fire – Explosion, Damage To Gasket Seals
E7

MOVING AND TRANSPORT
1. Given the limited weight and size of the pumps (see overall dimensions), moving the pumps
does not require the use of lifting devices.
2. The pumps were carefully packed before shipment. Check the packing material on delivery
and store in the dry place.
INSTALLATION
1. DISPOSING OF THE PACKING MATERIAL
The packing material does not require special precautions, not being in any way dangerous or
polluting.
Refer to local regulations for its disposal.
2. PRELIMINARY INSPECTION
• Check that the machine has not suffered any damage during transport or storage.
• Clean the inlet and outlet openings, removing any dust or residual packing material.
• Make sure that the motor shaft turns freely.
• Check that the electrical specifications correspond to those shown on the identification plate.
3. POSITIONING THE PUMP
• The pump can be installed in any position (pump axis vertical or horizontal).
• Attach the pump using screws of adequate diameter for the attachment holes provided in the
base of the pump (see the section “OVERALL DIMENSIONS” for their position and dimen-
sion).
THE MOTORS ARE NOT OF AN ANTI-EXPLOSIVE TYPE. Do not install them where
inflammable vapours can be present.
4. CONNECTING THE TUBING
• Before connection, make sure that the tubing and the suction tank are free of dirt and thread
residue that could damage the pump and its accessories.
• Before connecting the delivery tube, partially fill the pump body with diesel fuel to facilitate
priming.
• Do not use conical threaded joints that could damage the threaded pump openings if
excessively tightened.
SUCTION TUBING:
- Minimum recommended nominal diameter: 1"
- Nominal recommended pressure: 10bar / 145psi
- Use tubing suitable for functioning under suction pressure
DELIVERY TUBING:
- Minimum recommended nominal diameter: 1"
- Nominal recommended pressure: 10bar/145psi
It is the installer’s responsibility to use tubing with adequate characteristics.
The use of tubing unsuitable for use with diesel fuel can damage the pump, injure
persons and cause pollution.
Loosening of the connections (threaded connections, flanging, gasket seals) can cause
serious ecological and safety problem.
Check all the connections after the initial installation and on a daily basis after that.
Tighten the connections, if necessary.
E8

5. CONSIDERATIONS REGARDING DELIVERY AND SUCTION LINES
DELIVERY
1. The choice of pump mode must be made keeping the characteristics of the system in mind.
2. The combination of the length of the tubing, the diameter of the tubing, the flow rate of the
diesel fuel and the line accessories installed can create back pressure greater than the
maximums anticipated such as to cause the (partial) opening of the pump by-pass with the
consequent noticeable reduction of the flow rate supplied.
3. In such cases, to allow correct functioning of the pump, it is necessary to reduce system
resistance, using shorter tubing and/or of wider diameter and line accessories with less
resistance(e.g. an automatic dispensing nozzle for greater flow rates).
SUCTION
1. All pumps are self-priming pump and characterized by good suction capacity.
2. During the start-up phase, with an empty suction tube and the pump wetted with fluid, the
electric pump unit is capable of suctioning the liquid with a maximum difference in height of 2
meters. It is important to point out that the priming time can be as long as one minute and
the pressure of an automatic dispensing nozzle on the delivery line prevents the evacuation
of air from the installation, and, therefore, prevents proper priming.
3. For this reason, it is always advisable to prime the pump without an automatic delivery
nozzle, verifying the proper wetting of the pump. The installation of a foot valve is recom-
mended to prevent the emptying of the suction tube and to keep the pump wet. In this way,
the pump will subsequently always start up immediately.
4. When the system is functioning, the pump can work with pressure at the inlet as high as 0.5
bar, beyond which cavitation phenomena can begin, with a consequent loss of flow rate and
increase of system noise.
5. As we have said up to this point, it is important to guarantee low suction pressure by using
short tubing of a diameter equal to or larger than recommended, reducing curves to a
minimum and using suction filter of wide cross-section and foot valves with the lowest
possible resistance.
6. The difference in height between the pump and the fluid level must be kept as small as
possible and, at any rate, within the 2 meters anticipated for the priming phase.
7. If this height is exceeded, it will always be necessary to install a foot valve to allow for the
filling of the suction tube and provide tubing of wider diameter. It is recommended that the
pump not be installed at a difference in height greater than 3 meters.
In the case that the suction tank is higher than the pump, it is advisable to install an
anti-siphon valve to prevent accidental diesel fuel leaks.
INITIAL START-UP
• Check that the quantity of diesel fuel in the suction tank is greater than the amount you wish
to transfer.
• Make sure that the residual capacity of the delivery tank is greater than the quantity you wish
to transfer.
• Do not run the pump dry. This can cause serious damage to its components.
• Make sure that the tubing and line accessories and in good condition. Diesel fuel leak can
damage objects and injure person.
• Never start or stop the pump by inserting or removing any plugs.
• Do not operate switches with wet hands.
• Prolonged contact with diesel fuel can damage the skin. The use of glasses and gloves is
recommended.
E9

Extreme operating conditions can raise the motor temperature and, consequently, cause
the thermal protection switch to stop it.
Turn off the pump and wait for it to cool before resuming use.
The thermal protection automatically turns off when the motor is sufficiently cool.
In the priming phase the pump must blow the air initially present in the entire installation out of
the delivery line.
Therefore it is necessary to keep the outlet open to permit the evacuation of the air.
If an automatic type dispensing nozzle is installed at the end of the delivery line, the
evacuation of the air will be difficult because of the automatic stopping device that
keeps the valve closed when the line pressure is too low. It is recommended that the
automatic dispensing nozzle be temporarily disconnected during the initial start-up
phase.
The priming phase can last from several seconds to a few minutes, as a function of the
characteristics of the system. If this phase is prolonged, stop the pump and verify:
• That the pump is not running completely dry;
• That the suction tubing is not allowing air to seep in;
• That the suction filter is not clogged;
• That the suction height does not exceed 2m. (if the height exceeds 2m, fill the suction hose
with fluid);
• That the delivery tube is allowing the evacuation of the air.
When priming has occurred, verify that the pump is operating within the anticipated range, in
particular:
• That under conditions of maximum back pressure, the power absorption of the motor stays
within the values shown on the identification plate;
• That the suction pressure is not greater that 0.5 bar;
• That the back pressure in the delivery line is not greater than the maximum back pressure
foreseen for the pump.
DAILY USE
1. If using flexible tubing, attach the ends of the tubing to the tanks. In the absence of an
appropriate slot, solidly grasp the delivery tube before beginning dispensing.
2. Before starting the pump, make sure that the delivery valve is closed (dispensing nozzle or
line valve).
3. Turn the ON/OFF switch to ON. The by-pass valve allows functioning with the delivery
closed only for brief periods.
4. Open the delivery valve, solidly grasping the end of the tubing.
5. Close the delivery valve to stop dispensing.
6. When dispensing is finished, turn off the pump.
Function with the delivery closed is only allowed for brief periods (2-3 minutes
maximum).
After use, make sure the pump is turned off.
E10

PROBLEMS AND SOLUTIONS
MAINTENANCE
All models are designed and constructed to require a minimum of maintenance.
In any case always bear in mind the following basic recommendations for a good functioning of
the pump:
- On a weekly basis, check that the tubing joints have not loosened, to avoid any leakage.
- On a monthly basis, check the pump body and keep it clean of any impurities.
- On a weekly basis, check and keep clean the line suction filter.
- On a monthly basis, check that the electric power supply cables are in good condition.
-
NOISE LEVEL
Under normal working conditions the noise emission from all models does not exceed the valve
of 70 db at a distance of 1 meter from the electric pump.
DISPOSING OF CONTAMINATED MATERIALS
In the event of maintenance or demolition of the machine, do not disperse contaminated parts
into the environment.
Refer to local regulations for their proper disposal.
ACCIDENTS
The Motor is not
turning.
The motor turns slowly
when starting.
Low or no flow rate
Increased pump noise
Leakage from the
pump body
CAUSES
Lack of electric power
Rotor Jammed
Motor Problems
Low voltage in the electric
power line
Low level in the suction tank
Foot valve blocked
Filter clogged
Excessive suction pressure
High loss of head in the
delivery circuit (working
with the by-pass open)
By-pass valve blocked
Air entering the pump or the
suction tubing
A narrowing in the suction
tubing
Low rotation speed
The suction tubing is resting
on the bottom of the tank
Cavitation occurring
Irregular functioning of the
by-pass
Air present in the diesel fuel
Seal Damaged
REMEDIES
Check the electrical connecting.
Check for possible damage or obstruction of the
rotating components.
Contact the Service Department
Bring the voltage back within the anticipated limits
Refill the tank
Clean and/or replace the valve
Clean the filter
Lower the pump with respect to the level of the
tank or increase the cross-section of the tubing
Use shorter tubing or of greater diameter
Dismantle the valve, clean and/or replace it.
Check the seals of the Connections
Use tubing suitable for working under suction
pressure
Check the voltage at the pump. Adjust the voltage
and/or use cables of greater cross-section
Raise the tubing
Reduce suction pressure
Dispense fuel until the air is purged from the
by-pass system
Verify the suction connection
Check and replace the seal
E11

DIAGRAM AND PARTS LIST
Part No.
1
2
3
4
5
6
7
8*
9
10*
Description
BY PASS VALVE COVER
O-RING
BY PASS SPRING
BY PASS VALVE
SCREW M6
SCREW M6
PUMP BODY
O-RING
ROTOR
BLADE
Q’ty
1
1
1
1
4
1
1
1
1
5
Part No.
11
12
13
14
15
16
17
18
19
20
Description
SCREW M5
PIN 5
PUMP COVER
KEY
TERMINAL BOARD
DOUBLE-POLE SWITCH
TERMINAL BASE
MOTOR
BEARING
SEAL
Q’ty
4
2
1
1
1
1
1
1
1
1
* Wearing parts.
E12

TECHNICAL DETAILS
* This Mechanical Fuel Meter can be used to measure the flow of kerosene, diesel oil, water or
other fluids of low viscosity.
PERSONAL SAFETY
• Stay alert, watch what you are doing and use common sense when operating a fuel meter. Do
not use a fuel meter while you are tired or under the influence of drugs, alcohol or medication.
• Dress properly. Do not wear loose clothing, dangling objects, or jewelry. Keep your hair,
clothing and gloves away from moving parts. Loose clothes, jewelry or long hair can be
caught in moving parts. Air vents often cover moving parts and should be avoided.
• U
se safety apparel and equipment. Use safety goggles or safety glasses with side shields
which comply with current national standards, or when needed, a face shield. Use as dust mask
in dusty work conditions. This applies to all persons in the work area. Also use non-skid safety
shoes, hardhat, gloves, dust collection systems, and hearing protection when appropriate.
•Do not overreach. Keep proper footing and balance at all times.
INSTALLATION
1. The meter can be installed in any position, directly on rigid pipelines or flexible hoses, or
directly on pumps or tanks.
2. The meter flow direction is fixed and indicated by an arrow. The meter is supplied in the
standard configuration (Figure A).
3. The counter and the cover can be rotated around the body in order to carry out the different
configurations (Figures B, C & D).
4. The reset knob can be installed either on the right side or on the left side of the meter in
order to modify the standard configuration, following the instructions provided in the section
“Disassembly/Reassembly.”
5. The meter body is equipped with 4 blind holes which can be threaded for a possible
fastening. If solid particles enter the measuring chamber the correct working of the nutating
disk may be affected.
6. Always filter the fluid by installing a filter (included) on the meter inlet.
CALIBRATION
The meter is pre-calibrated in factory to be used with kerosene.
Item No.
Meter mechanism
Flow rate range
Operating pressure
Storage humidity
Working temperature range
Accuracy
Inlet/Outlet connection
Weight
15111200
Nutating disk
20-120 LPM / 5-32GPM
Max. 3.5 bar/50PSI
Max. 95%
-10 - 58°C
±1%
1"
1.8 KGS
E13

As specific operating conditions (such as real flow rate, nature and temperature of the measured
fluid) may affect the meter accuracy, a recalibration should be carried out after the installation
has been completed. A new calibration is necessary each time the meter is disassembled for
maintenance or when it is used to measure fluids other than kerosene.
CALIBRATION PROCEDURE
1. Unscrew the plug (see diagram, #26).
2. Purge the system (pump, pipelines & meter) of air by dispensing until the flow stream is full
and steady.
3. Stop the flow by shutting off the nozzle, but let the pump continue to run.
4. Reset the batch register with the reset knob (#2).
5. Dispense at the most accurate flow rate, by using a calibrated container with a capacity of 5
gallons or more. Do not reduce the flow in order to reach the graduated zone of the
calibrated container. Instead, use a “top-off” method, starting and stopping the full flow
repeatedly until the required level is reached.
6. Compare the indication of the calibrated container (real value) with the meter’s indicated value.
a) If the indicated value is higher than the real value, loosen the screw (#24).
b) If the indicated value is lower than the real value, tighten the screw (#24).
7. Repeat the steps 4 to 6 until satisfactory accuracy is achieved.
8.
Tighten the plug (#26) again. The O-ring (#23) provided with the calibration screw will hold the
new calibration position to avoid accidental loosening of the adjustment screw but does not seal
the unit, so it is always necessary to properly fix the plug (#26) with the sealing gasket (#25).
USE
After installation and calibration, the meter is ready to work.
Turn the reset knob (#2) clockwise if it is mounted on the left of the meter and counterclockwise
if it is mounted on right, until the batch register is completely reset. The total register cannot be
reset in any way.
Make sure that during use pressure does not exceed 50 PSI.
OPERATION
GRAVITY-FED SYSTEMS
The meter can also be used in gravity-fed fuel units where the flow is generated by the
difference in fuel level between the tank and the nozzle outlet. As a general rule, a gravity-fed
system composed of a tank off the ground that has the meter installed at the bottom of the
tank, using a 9.8-ft. long 1” flexible pipe, guarantees a flow rate of approximately 8 GPM if the
height difference is greater than 5 feet. Longer pipes or nozzles producing higher pressure
losses will reduce the flow rate.
NOTE: Use of this meter for gravity-fed systems with level differences less than 3 feet is not
recommended because the reduced flow rate causes the meter to work outside its guaranteed
accuracy range. Onsite calibration is required in any gravity-fed installation.
Before disassembling the meter, always make sure that all fluid is drained from the meter and
pipes connected with the meter.
User can carry out periodic cleaning of the unit with a soft brush or small tool (i.e. a screw-
driver). During cleaning, be careful not to damage the chamber or the disk. Carefully check the
meter and replace any damaged parts. Only use the original spare part kits (not included)
shown in PART LISTS AND DIAGRAM.
NOTE: A new calibration is always necessary after cleaning or replacing the meter parts.
E14

DISASSEMBLY/REASSEMBLY
The meter can disassemble easily into its primary components without removing the body from
the pipes.
METER UNIT
Disassemble the meter unit as follows:
1. Remove the reset knob by firmly pulling it straight out.
2. Loosen four retaining screws (#22).
3. Loosen two screws (#5).
To reassemble the unit, reverse the above procedure.
MEASURING CHAMBER
To enter the measuring chamber, operate as follows:
1. Disassemble the meter unit as the above steps 1-3.
2. Loosen the eight screws (#7).
3. Remove the body cover (#6), together with the gear unit.
Be careful not to damage the sealing gasket (#16).
4. Remove the whole measuring chamber (#27) by lifting it from the meter body and at the
same time pulling it back towards the inlet in order to remove the O-ring (#17) from its seat
at the outlet.
5. Remove the O-ring (#17) and divide the measuring chamber (#27) into two half to check the
inside of the chamber containing the nutating disk.
To reassemble the chamber, reverse the above procedure. Be sure to:
1. Verify that the nutating disk rotates freely in the assembled chamber.
2. Install the gaskets (#16, #17) properly after inspecting and lubricating them with grease.
3. Make sure that when reattaching the cover to the body of the meter, the nutating disk needle
does not hit the driving lever (#14), which must remain free to be moved by the disk needle.
4. Tighten the screws (#7) completely.
GEAR UNIT
To reach the gear unit components:
1. Remove the cover Assy. (#28).
2. Loosen the screws (#13).
3. Remove the plate (#12). Now all gears can be reached for inspection.
4. Should the gasket (#10) be replaced, remove the bevel gear (#8) from the shaft by pulling
straight out, and then remove the gear unit (#11) together with the shaft.
To reassemble, reverse the above described procedure paying particular attention to:
1. Lubricating the O-ring with grease before installation.
2. Checking that the gear unit can rotate freely before reattaching the cover.
MAINTENANCE
No ordinary maintenance is required if the meter is properly installed and used according to
recommendations. An incorrect filtering on the meter inlet may block or wear out the measuring
chamber, thus affecting the meter accuracy. Should this problem occur, disassemble the
measuring chamber, as shown in section DISASSEMBLY/REASSEMBLY, and evaluate the
filter’s condition.
E15

Part No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Description
Name plate
Reset knob
External cover
Meter
Screws 4x20
Body cover
Screw 5x16
Bevel pinion
O-ring 3.62x2.62
Cover sealing
Gear kit
Gear plate
Screws 3x10
Driving lever
Q’ty
1
1
1
1
2
1
8
1
1
1
1
1
4
1
Part No.
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Description
Meter body
O-ring 110.72x3.53
O-ring 23.47x2.62
Measuring chamber
Measuring tray
Measuring chamber
Cylinder spring
Screws 4x20
O-ring 4.47x1.78
By-pass adjusting screw
O-ring 9.25x1.78
By-pass plug
Measuring chamber Assy.
Body cover Assy.
Q’ty
1
1
1
1
1
1
4
4
2
1
1
1
1
1
EXPLODED AND PARTS LIST
If the meter is not working properly, contact an authorized service representative. Do not
attempt to repair the meter by yourself.
E16

Size: 145x210mm REV 03/11/22 2.09.05.30.1087157克铜版纸
Macnaught Americas
[phone] | [email protected]
* Read Manual Before Use!