Graco 127643 User manual

Instructions
12VDC PUMP FOR DIESEL
333466E
EXHAUST FLUID (DEF) (ISO 22241) EN • FR • ES
NOT APPROVED FOR USE IN EXPLOSIVE
ATMOSPHERES OR HAZARDOUS LOCATIONS
MODEL 127643
MAX WPR 345 kPa (3.4 bar) (50 psi)
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions

2 M0309
EN A TABLE OF CONTENTS
A TABLE OF CONTENTS 2
B MACHINE AND MANUFACTURER IDENTIFICATION 3
C MACHINE DESCRIPTION 3
C.1 HANDLING AND TRANSPORT 3
D GENERAL WARNINGS 3
E FIRST AID RULES 3
E.1 WARNINGS 4
F TECHNICAL DATA 6
G ELECTRICAL DATA 7
H OPERATING CONDITIONS 7
H1 ENVIRONMENTAL CONDITIONS 7
H2 ELECTRICAL POWER SUPPLY 7
H3 DUTY CYCLE 7
H4 PERMITTED AND NON-PERMITTED FLUIDS 7
I INSTALLATION 8
I1 POSITIONING, CONFIGURATIONS AND ACCESSORIES 8
I2 NOTES ON SUCTION AND DELIVERY LINES 9
J CONNECTIONS 10
J1 ELECTRICAL CONNECTIONS 10
J2 PIPING CONNECTIONS 11
K INITIAL START-UP 12
L EVERY DAY USE 13
M MAINTENANCE 13
N NOISE LEVEL 14
O PROBLEMS AND SOLUTIONS 14
P DEMOLITION AND DISPOSAL 15
Q OVERALL DIMENSIONS (mm) 15
R EC-DECLARATION OF CONFORMITY 16
WARRANTY 20

M0309 3
EN
B MACHINE AND MANUFACTURER IDENTIFICATION
DATE CODE
PART NUMBER
TECHNICAL
DATA
127643 XXXX
MAX WPR 345 kPa (3.4 bar)(50 psi)
12V D C 260 W
22A 2600 Rpm
DUTY CYCLE 20´ON/20´OFF
36 lpm/9.5 gpm
-5C to 40C 23F to 104F
IP55/RAINPROOF
LOT XXXXXXX
Read instruction manual 333466.
Artwork No. 294247 Rev. B
Graco Inc.
P.O. Box 1441
Mpls, MN 55440
www.graco.com
MADE IN ITALY
F 14 A
C MACHINE DESCRIPTION
PUMP: Five-chamber positive-displacement diaphragm pump.
MOTOR: Asynchronous motor, single-phase, 2 pole, closed type, protection class IP55 according to CEI-EN 60034-5.
C.1 HANDLING AND TRANSPORT
Due to the limited weight and dimensions of the pumps, special lifting equipment is not required to handle them. The
pumps are carefully packed before dispatch. Check the packing when receiving the material and store in a dry place.
D GENERAL WARNINGS
Important pre-
cautions
To ensure operator safety and to protect the pump from
potential damage, workers must be fully acquainted with
this instruction manual before performing any operation.
Symbols used
in the manual
The following symbols will be used throughout the manual
to highlight safety information and precautions of particular
importance:
WARNING
This symbol indicates safe working practices for
operators and/or potentially exposed persons.
NOTICE
This symbol indicates that there is risk of damage to
the equipment and/or its components.
NOTE
This symbol indicates useful information
Manual preser-
vation
This manual should be complete and legible throughout.
It should remain available to end users and specialist
installation and maintenance technicians for consultation at
any time.
Reproduction
rights
All reproduction rights are reserved by Graco Inc. The text
cannot be reprinted without the written permission
E FIRST AID RULES
Contact with
the flui
In the event of problems developing following EYE/
SKIN CONTACT, INHALATION or INGESTION of the treated
product, please refer to the SAFETY DATA SHEET/ASU32 /
DEF / AD-Blue (ISO22241)
Persons who
have suffe ed
electric shock
Disconnect the power source, or use a dry insulator to
protect yourself while you move the injured person away
from any electrical conductor. Avoid touching the injured
person with your bare hands until he is far away from any
conductor. Immediately call for help from qualified and
trained personnel. Do not operate switches with wet hands.
NOTE Please refer to the safety data sheet for the fluid

4 M0309
EN E.1 WARNINGS
The following warnings are for the setup, use, grounding, and repair of this equipment. The
exclamation point symbol alerts you to a general warning and the hazard symbols refer to
procedure-specific risks. When these symbols appear in the body of this manual or on warn-
ing labels, refer back to these Warnings. Product-specific hazard symbols and warnings not
covered in this section may apear thoughout the body of this manual where applicable.
WARNING
FIRE AND
EXPLOSION When flammable fluids are present in the work area,
such as gasoline and wind-
shield wiper flui , be aware
that flammable fumes can
ignite or explode. To help
prevent fi e and explosion:
Use equipment only in will ventilated area.
Eliminate all ignition sources, such as cigarettes
and portable electric lamps.
Keep work area free of debris, including rags
and spilled or open containers of solvent and
gasoline.
Do not plug or unplug power cords or turn
lights on or off when flammable fumes are
present.
Ground all equipment in the work area.
Stop operation immediately if static spark-
ing occurs or if you feel a shock. Do not use
equipment until you identify and correct the
problem.
Keep a working fi e extinguisher in the work
area.
EQUIPMENT
MISUSE
!
Misuse can cause death or
serious injury Do not operate the unit when fatigued or un- der the influen e of drugs or alcohol.
Do not exceed the maximum working pres-
sure or temperature rating of the lowest rated
system component. See Technical Data in all
equipment manuals.
Use fluids and solvents that are compatible
with equipment wetted parts. See Technical
Data in all equipment manuals. Read fluid and
solvent manufacturer’s warnings. For com-
plete information about your material, request
MSDS from distributor or retailer.
Do not leave the work area while equipment is
energized or under pressure.
Turn off all equipment when equipment is not
in use.
Check equipment daily. Repair or replace worn
or damaged parts immediately with genuine
manufacturer’s replacement parts only.
Do not alter or modify equipment. Alterations
or modific tions may void agency approvals
and create safety hazards.
Make sure all equipment is rated and approved
for the environment in which you are using it.
Use equipment only for it intended purpose.
Call your distributor for information.
Route hoses and cables away from traffi areas,
sharp edges, moving parts, and hot surfaces.
Do not kink or over bend hoses or use hoses to
pull equipment.
Keep children and animals away from work area.
Comply with all applicable safety regulations.
Burn
Hazard Equipment surfaces and
fluid that is heated can
become very hot during
operation
To avoid severe burns do not touch hot fluid or
equipment.

M0309 5
EN
Toxic Fluid
or Fumes
Hazard
Toxic fluids or fumes ca
cause serious injury or
death if splashed in the
eyes or on skin, inhaled, or
swallowed.
Read MSDS’s to know the specific hazards of
the fluids ou are using.
Store hazardous fluid in approved contain-
ers, and dispose of it according to applicable
guidelines.
Prolonged contact with the treated product
may cause skin irritations: always wear pro-
tective gloves during dispensing.
Personal
Protective
Equipment
Wear appropriate protec-
tive equipment when in
the work area to help pre-
vent serious injury, includ-
ing eye injury, hearing loss,
inhalation of toxic fumes,
and burns.
This equipment includes but is not limited to:
Protective eyewear, safety shoes, close-fittin
clothing and hearing protection.
Respirators, protective clothing, and gloves as
recommended by the fluid and solvent manu-
facturer.
Wear protective equipment that is suited to the
operations that need to be performed and re-
sistant to cleaning products.

6 M0309
EN F TECHNICAL DATA
F1 PERFORMANCE SPECIFICATIONS
The performance diagram shows fl w rate as a function of back pressure.
Functioning
Point
Flow Rate (litres/minute) Voltage (V) Amps (A)
Typical Delivery Configu ation
No. 4 metres of ¾” pipe - K24 Meter Manual nozzle Automatic Dispensing Nozzle
A
(Maximum fl w rate) 36 12 16 • •
B
(High fl w rate) 33 12 17 •••
C
(Normal conditions) 30 12 19 • • •
D
(By pass) 012 20 Delivery closed
NOTE
The curve refers to the following operating condi-
tions:
Fluid: DEF
Temperature: 20° C (68 °F)
Suction conditions: The pipe and the pump position
relative to the fluid level is such that a low pressure
of 0.3 bar (4 psi) is generated at the nominal flow
rate.
Under different suction conditions higher low
pressure values can be created that reduce the flow
rate compared to the same back pressure values. To
obtain the best performance, it is very important to
reduce loss of suction pressure as much as possible
by following these instructions:
• shorten the suction pipe as much as possible
• avoid useless elbows or throttling in the pipes
• keep the suction filter clean
• use a pipe with a diameter equal to, or greater
than, indicated (see Installation).
NOTE By-pass pressure is 1.7 bar (24 psi)
NOTE The wetted materials used in this device are :
stainless steel, plastic and rubber suitable for AdBlue.

M0309 7
EN
G ELECTRICAL DATA
PUMP MODEL POWER SUPPLY CURRENT
Current Voltage (V) Max (*) (A)
127643 DC 12 20
(*) Refers to functioning in by-pass mode.
H OPERATING CONDITIONS
H1 ENVIRONMENTAL CONDITIONS
TEMPERATURE min. +23 °F / max +104 °F
min. -5 °C / max +40 °C
RELATIVE HUMID-
ITY max. 90%
LIGHTING The environment must conform to directive 89/654/EEC
on work environments.
In case of non-EU countries, refer to directive EN ISO
12100-2 § 4.8.6.
NOTICE The temperature limits shown apply to the pump
components and must be respected to avoid
possible damage or malfunction.
H2 ELECTRICAL POWER SUPPLY
NOTICE N.B.: THE PUMP SHOULD BE POWERED BY A SAFE
SOURCE: BATTERY OR POWER SUPPLY 12/24V WITH
SAFETY TRANSFORMER.
In accordance with the model, the pump must be
powered by a direct current line, the nominal values
of which are indicated on the table in the paragraph
“I – ELECTRICAL SPECIFICATIONS”.
The maximum acceptable variations from the electri-
cal parameters are:
Voltage: +/- 10% of the nominal value
NOTICE Power supply from lines with values that do not fall
within the indicate limits could cause damage to
the electrical components and reduction of working
performance.
H3 DUTY CYCLE
NOTICE The pumps have been designed for intermittent use
and a 20-minute duty cycle under conditions of max-
imum back pressure.
NOTICE Functioning under by-pass conditions is only
allowed for short periods of time (max. 3
minutes).
H4 PERMITTED AND NON-PERMITTED FLUIDS
FLUIDS
PERMITTED - AUS32 (DEF, AD-Blue); - WATER
FLUIDS NON-
PERMITTED AND
RELATED
HAZARDS
- DIESEL FUEL - OXIDATION OF PUMP
- PETROL - FIRE
- INFLAMMABLE LIQUIDS - EXPLOSION
- CORROSIVE CHEMICAL PRODUCTS - CORROSION AND INJURY TO
PERSONS
- SOLVENTS - DAMAGE TO GASKET SEALS
- LIQUIDS WITH VISCOSITY >20 cst - MOTOR OVERLOAD

8 M0309
EN I INSTALLATION
WARNING FIRE AND EXPLOSION HAZARD
The motors are not of the anti-explosive-type.
do not install them where infl mmable vapours could
be present.
WARNING EQUIPMENT MISUSE HAZARD
It is the responsibility of the installer to provide the
necessary line accessories to ensure the correct
and safe operation of the pump. The accessories
that are not suitable to be used with the previously
indicated material could damage the pump and/
or cause injury to persons, as well as causing
pollution.
NOTICE The pump must never be operated before the deliv-
ery and suction lines have been connected.
PRELIMINARY
INSPECTION
- Verify that all components are present. Request any missing parts
from the manufacturer.
- Check that the pump has not suered any damage during trans-
port or storage.
- Carefully clean the suction and delivery inlets and outlets, remov-
ing any dust or other packaging material that may be present.
- Check that the electrical data corresponds to those indicated on
the data plate.
- Always install in an illuminated area.
- Install the pump at a height of min. 80 cm (31.5 in).
I1 POSITIONING, CONFIGURATIONS AND ACCESSORIES
NOTICE In the case of installation in the open air, proceed to
protect the pump by providing a protection roof.
NOTE The pump can be installed in any position (pump axis
vertical or horizontal)
The pump must be secured in a stable way using the
holes on the bed of the motor and vibration damping
devices.
NOTICE The broad range of pump accessories make it suit-
able for many different uses, installations and ap-
plications. The supporting base can be positioned in
different ways.
NOTICE To maximise performance and prevent damage
that could affect pump operation, always de-
mand original accessories.

M0309 9
EN
I2 NOTES ON SUCTION AND DELIVERY LINES
DELIVERY
EFFECTS ON
FLOW RATE Length and diameter of pipe, fl w rate of dispensed liquid, accessories fit ed, can create back pressures above those allowed.
In this case, the pump mechanical control (bypass) will trip to re-
duce the fl w rate.
HOW TO REDUCE
EFFECTS ON
FLOW RATE
To avoid these problems, system fl w resistances must be reduced
using shorter and/or larger diameter pipes, as well as line accessories
with low resistances (e.g., automatic nozzle for higher fl w rates).
NOTICE
CHARACTERISTICS
OF DELIVERY PIPES
The delivery pipe must have the following technical
characteristics:
- recommended minimum nominal diameter: ¾”
- recommended nominal pressure: 10 bar (145 psi)
SUCTION
FOREWORD Diaphragm positive-displacement pumps are self-priming and
feature good suction capacity.
During the start-up phase, when the suction pipe is empty and the
pump is wet, the electric pump unit is able to suck liquid from a
maximum vertical distance of 2 mt. (6.5 ft)
NOTE Priming time can last a few minutes. We suggest
performing priming operations without automatic
nozzle and making sure the pump is properly wet.
NOTICE Always install a foot valve to prevent the suction pipe
from being emptied and to keep the pump wet at all
times. In this way, the pump will always start up im-
mediately the next times it is used.
CAVITATION The pump is able to work with vacuums of up to 0.5 bar (7 psi) at the
suction mouth. Over this value, CAVITATION can occur that causes a
fall in fl w rate and increase in noise levels.
HOW TO
PREVENT
CAVITATION
It is important to ensure low vacuums at suction mouth by using:
- short pipes with larger or identical diameter to that recommended
- reduce bends to the utmost
- use large-section suction fil ers
- use foot valves with minimum possible resistance
- keep the suction fil ers clean because, when they become clogged,
they increase the resistance of the system.
NOTICE The vertical distance between the pump and the fluid
must fall within the 2 mt. (6.5 ft) maximum required
for priming. If the distance is greater, a foot valve
must be installed to allow the suction pipes to fill up
and the diameter pipes must be larger. It is recom-
mended that the pump not be installed at a vertical
distance greater than 2 meters.
NOTICE If the suction tank is higher than the pump, an anti-
siphon valve should be installed to prevent acciden-
tal product leaks. Size the installation to contain the
back pressures caused by water hammering.
NOTICE It is a good system practice to immediately install
vacuum and air pressure gauges at the inlets and
outlets of the pump which allow verification that
operating conditions are within anticipated limits.
To prevent the suction pipes from being emptied
when the pump stops, a foot valve should be
installed.
NOTICE
CHARACTERISTICS
OF THE SUCTION
PIPES
The suction pipe must have the following technical
specifications:
- recommended minimum nominal diameter: ¾”;
- recommended nominal pressure: 10 bar (145 psi);
- use pipes suitable for low vacuum operation (e.g.
with metal core)

10 M0309
EN J CONNECTIONS
J1 ELECTRICAL CONNECTIONS
WARNING : ELECTRIC SHIOCK HAZARD
It is the responsibility of the installer to carry out the
electrical connections in compliance with the applicable
regulations.
Comply with the following (not exhaustive) instructions to
ensure a proper electrical connection:
- Before installation and maintenance make sure that power supply
to the electric lines has been turned o;
- Use cables with minimum cross-sections, rated voltages and instal-
lation type that are suitable for the characteristics indicated in para-
graph G ELECTRICAL DATA.
- Always close the cover of the terminal strip box before switching
on the power supply, after having checked the integrity of the seal
gaskets that ensure the IP55 protection grade.
ELECTRICAL
FITTINGS
• Cables with faston connector coupling for connection to the power
supply line;
• RED cable: positive pole (+)
• BLACK cable: negative pole (-)
• Terminal strip box (protection class IP55 in conformance with the
directive EN 60034-5-97) complete of:
-ON/OFF switch;
-Safety fuse against short circuits and overcurrent, featuring the fol-
lowing characteristics:
25A for 12V models
15A for 24V models
• power cable complete of pincers for connection to the battery
INTERRUTTORE
FUSIBILE
CAVI MOTORE +
+
__
SCATOLA
MORSETTIERA
ROSSO
NERO
ROSSO
NERO
FUSE
RED RED
BLACK BLACK
MOTOR CABLE
SWITCH
ELECTRICAL BOX