Ragazzini RC2-Mxl User manual

Piston Pumps
RC2-MxI model
Instructions for use
Original version in Italian
Second edition –January 2021
Document code
LM05EN002

INSTRUCTIONS FOR USE
2LM05EN002
All rights reserved. The user is not allowed to reproduce, store in a filing system or transmit in any form or by any
means, such as a mechanical, photocopying, recording or other system, any part of this publication without the prior
written consent of Ragazzini S.r.l. Short excerpts appearing in articles in specialised publications are exempt from the
above prohibitions.
, and are trademarks registered by Ragazzini S.r.l.
The logos and are owned by Ragazzini S.r.l.

INSTRUCTIONS FOR USE
3LM05EN002
TABLE OF CONTENTS
A CHARACTERISTIC DATA –MACHINE CONFIGURATION (attached to the machine)
BGENERAL WARNINGS ....................................................................................................................................................... 5
B.1 RESPONSIBILITY....................................................................................................................................................................................................................6
B.2 ORIGINAL VERSION OF THE INSTRUCTIONS....................................................................................................................................................................6
B.3 CONFORMITY OF THE PRODUCT........................................................................................................................................................................................6
B.3.1 COPY OF THE EC DECLARATION OF CONFORMITY: .................................................................................................................................................7
B.3.2 IDENTIFICATION PLATE..................................................................................................................................................................................................8
B.4 EXPLANATION OF THE SYMBOLS AND PICTOGRAMS USED IN THE MANUAL ............................................................................................................9
B.4.1 WARNING NOTES ............................................................................................................................................................................................................9
B.4.2 HAZARD PICTOGRAMS THAT MAY BE PRESENT IN THE INSTRUCTIONS FOR USE.............................................................................................9
CSAFE INTERACTION WITH THE MACHINERY ............................................................................................................... 10
C.1 WORK ENVIRONMENT ........................................................................................................................................................................................................10
C.2 MAN-MACHINE INTERFACES .............................................................................................................................................................................................10
C.3 INTENDED USE OF THE NON-ATEX VERSION PUMP .....................................................................................................................................................10
C.3.1 INTENDED USE OF THE MACHINE..............................................................................................................................................................................10
C.3.2 PROHIBITED USE...........................................................................................................................................................................................................10
C.3.3 REASONABLY FORESEEABLE MISUSE OF THE MACHINE......................................................................................................................................10
C.4 INTENDED USE OF THE ATEX VERSION PUMP...............................................................................................................................................................11
C.4.1 INTENDED USE OF THE MACHINE..............................................................................................................................................................................11
C.4.2 PROHIBITED USE...........................................................................................................................................................................................................11
C.5 GUARDS AND SAFETY DEVICES.......................................................................................................................................................................................12
C.5.1 ELECTRICAL SAFETY DEVICES (STANDARD CONFIGURATION WITH ELECTRICAL PANEL).............................................................................12
C.5.2 SAFETY FUNCTIONS ACCORDING TO THE EN13849-1 STANDARD.......................................................................................................................12
C.5.3 MEASURES TO REDUCE NOISE RISKS ......................................................................................................................................................................12
C.5.4 MEASURES TO REDUCE EXTREME TEMPERATURES RISKS.................................................................................................................................12
C.5.5 MEASURES TO REDUCE OTHER RISKS.....................................................................................................................................................................12
C.6 RESIDUAL RISKS .................................................................................................................................................................................................................13
C.6.1 RESIDUAL RISKS DURING NORMAL USE OF THE MACHINE...................................................................................................................................13
C.6.2 RISKS GENERATED BY TAMPERING AND/OR PROHIBITED BEHAVIOUR .............................................................................................................13
C.6.3 RESIDUAL RISKS DURING MAINTENANCE ................................................................................................................................................................13
C.6.4 DANGEROUS AREAS.....................................................................................................................................................................................................13
C.6.5 RISKS FOR EXPOSED PERSONS ................................................................................................................................................................................14
C.6.6 INFORMATION AND WARNINGS APPLIED ON THE MACHINE .................................................................................................................................14
C.7 PROTECTIVE MEASURES TO BE TAKEN BY THE USER ................................................................................................................................................15
C.7.1 PERSONAL PROTECTIVE EQUIPMENT.......................................................................................................................................................................15
DGENERAL DESCRIPTION................................................................................................................................................. 16
D.1 PISTON PUMP UNIT.............................................................................................................................................................................................................16
D.2 THEORY OF OPERATION....................................................................................................................................................................................................16
D.3 DIMENSIONS AND VOLUME ...............................................................................................................................................................................................17
ETRANSPORTATION - HOISTING - STORAGE................................................................................................................. 18
E.1 GENERAL WARNINGS.........................................................................................................................................................................................................18
E.2 PERSONAL PROTECTIVE EQUIPMENT.............................................................................................................................................................................18
E.3 TRANSPORTATION..............................................................................................................................................................................................................19
E.4 HOISTING..............................................................................................................................................................................................................................19
E.5 POSITIONING AND FIXING THE MACHINE........................................................................................................................................................................19
E.5.1 POSITIONING OF THE PUMP, VERSION WITH WHEELS ..........................................................................................................................................19
E.5.2 POSITIONING AND FIXING OF THE PUMP, VERSION WITH FIXED FRAME (OPTIONAL)......................................................................................19
E.6 STORAGE..............................................................................................................................................................................................................................19
FINSTALLATION ................................................................................................................................................................. 20
F.1 GENERAL WARNINGS.........................................................................................................................................................................................................20
F.2 PERSONAL PROTECTIVE EQUIPMENT.............................................................................................................................................................................20
F.3 OPERATION AND MAINTENANCE AREAS ........................................................................................................................................................................20
F.4 CHECKS BEFORE INSTALLATION .....................................................................................................................................................................................21
F.5 ELECTRICAL CONNECTION................................................................................................................................................................................................21
F.5.1 STANDARD CONFIGURATION WITH ELECTRICAL PANEL.......................................................................................................................................21
F.5.2 CONFIGURATION WITHOUT ELECTRICAL PANEL (OPTIONAL)...............................................................................................................................21
F.6 CONNECTION WITH PRODUCT RECEIVING SYSTEM.....................................................................................................................................................22
F.7 PIPES - CORRECT INSTALLATION.....................................................................................................................................................................................23
F.7.1 FLUID PRODUCTS .........................................................................................................................................................................................................23
F.7.2 VISCOUS PRODUCTS....................................................................................................................................................................................................23
F.7.3 OVERPRESSURE...........................................................................................................................................................................................................23
F.7.4 PUMP STOPPED ............................................................................................................................................................................................................23
GINSTRUCTIONS FOR COMMISSIONING - OPERATION - SHUT-DOWN ....................................................................... 24
G.1 GENERAL WARNINGS FOR NORMAL OPERATION OF THE MACHINE.........................................................................................................................24
G.1.1 CHECKS AND INSPECTIONS FOR THE SAFE USE OF THE MACHINE....................................................................................................................24
G.2 PERSONAL PROTECTIVE EQUIPMENT.............................................................................................................................................................................25
G.3 EMERGENCY STOP .............................................................................................................................................................................................................25
G.3.1 RESET AFTER AN EMERGENCY STOP.......................................................................................................................................................................25
G.4 START....................................................................................................................................................................................................................................26
G.5 OPERATION..........................................................................................................................................................................................................................26
G.5.1 ACTIONS TO BE AVOIDED............................................................................................................................................................................................26
G.6 STOPPING.............................................................................................................................................................................................................................26
G.6.1 STOPPING THE PUMP...................................................................................................................................................................................................26
G.6.2 DRAINING THE PUMP....................................................................................................................................................................................................26
G.6.3 CLEANING THE PIPES...................................................................................................................................................................................................27

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G.6.4 PROLONGED STOPS.....................................................................................................................................................................................................27
G.7 COMPLIANCE WITH HYGIENE REQUIREMENTS .............................................................................................................................................................27
G.7.1 DRAINAGE ......................................................................................................................................................................................................................27
G.7.2 CLEANING.......................................................................................................................................................................................................................27
G.8 RESIDUAL RISKS .................................................................................................................................................................................................................27
G.8.1 USE WITH FOOD............................................................................................................................................................................................................27
G.8.2 PUMPING OF DANGEROUS FLUIDS............................................................................................................................................................................27
HTROUBLESHOOTING ....................................................................................................................................................... 28
IMAINTENANCE ................................................................................................................................................................. 30
I.1 GENERAL WARNINGS.........................................................................................................................................................................................................30
I.2 PRECAUTIONS AND WARNINGS WHEN PREPARING THE MACHINE FOR ROUTINE MAINTENANCE.....................................................................30
I.3 PERSONAL PROTECTIVE EQUIPMENT.............................................................................................................................................................................31
I.4 PROCEDURES FOR PLACING THE MACHINE IN MAINTENANCE STATUS ..................................................................................................................31
I.5 NORMAL WEAR PARTS.......................................................................................................................................................................................................32
I.5.1 CHECK AND REPLACE THE VALVES ..........................................................................................................................................................................32
I.5.2 CHECK AND REPLACE THE CAPS...............................................................................................................................................................................32
I.5.3 CHECK AND REPLACE THE ROD SEAL RINGS (GLAND)..........................................................................................................................................33
I.5.4 ROD INSPECTION AND REPLACEMENT.....................................................................................................................................................................33
I.6 REPLACEMENT/ADJUSTMENT OF THE BELTS................................................................................................................................................................34
I.7 MOTOR / GEARBOX.............................................................................................................................................................................................................35
I.7.1 MOTOR............................................................................................................................................................................................................................35
I.7.1 ATEX VERSION ..............................................................................................................................................................................................................35
I.7.2 GEARBOX .......................................................................................................................................................................................................................35
I.8 COMPONENTS MAINTENANCE –PUMP ATEX VERSION ...............................................................................................................................................36
JSPARE PARTS .................................................................................................................................................................. 37
J.1 HOW TO ORDER SPARE PARTS........................................................................................................................................................................................37
J.2 SPARE PARTS ORDER EXAMPLE......................................................................................................................................................................................37
J.3 SPARE PARTS LIST .............................................................................................................................................................................................................38
J.4 SEALS....................................................................................................................................................................................................................................39
J.4.1 CAPS ...............................................................................................................................................................................................................................39
J.4.2 VALVES ...........................................................................................................................................................................................................................39
J.4.3 RINGS..............................................................................................................................................................................................................................40
J.4.4 SUMMARY TABLE: .........................................................................................................................................................................................................41
KDEMOLITION AND DISPOSAL ......................................................................................................................................... 42
K.1 GENERAL WARNINGS CONCERNING DEMOLITION AND DISPOSAL OF THE MACHINE ...........................................................................................42
K.1.1 SPECIAL AND HAZARDOUS WASTE ...........................................................................................................................................................................42
K.2 PERSONAL PROTECTIVE EQUIPMENT REQUIRED DURING MACHINE DEMOLITION AND DISPOSAL....................................................................42
K.3 MACHINE DISMANTLING.....................................................................................................................................................................................................42
K.4 SORTING THE MATERIALS.................................................................................................................................................................................................43
K.5 DISPOSING OF MACHINE MATERIALS AND PRODUCTS................................................................................................................................................43
LPUMP OPTIONAL CONFIGURATIONS ............................................................................................................................ 44
L.1 OPTIONAL MOTOR VERSIONS...........................................................................................................................................................................................44
L.1.1 ATEX VERSION ..............................................................................................................................................................................................................44
L.2 PRESSURE SWITCH ............................................................................................................................................................................................................45
L.2.1 TECHNICAL DATA..........................................................................................................................................................................................................45
L.2.2 ELECTRICAL CONNECTIONS.......................................................................................................................................................................................45
L.2.3 CALIBRATION.................................................................................................................................................................................................................45
L.2.4 OVERALL DIMENSIONS ................................................................................................................................................................................................45
L.2.5 ATEX VERSION ..............................................................................................................................................................................................................45
MIDEAL CHARACTERISTIC PERFORMANCE OF THE PISTON PUMP........................................................................... 46

INSTRUCTIONS FOR USE
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BGENERAL WARNINGS
Carefully read the manual before starting any operation.
The machine must be used as supplied by Ragazzini S.r.l., following all the instructions and
indications given in this manual.
The necessary spare parts for each component will be supplied by Ragazzini S.r.l.; otherwise we
decline any kind of responsibility for the product and/or for the damage it may cause.
These instructions contain useful information for training and informing the operator, in order to avoid
improper and dangerous use of the machine.
The instructions must be integrated by the legislative provisions and technical standards in force; they
do not replace any system regulations and any additional prescriptions, even non-legislative, which
have been issued in any case for safety purposes.
The instructions for use are an integral part of the machine; it is necessary to keep them in good
condition, in a safe place and available to the operator (or anyone who requests them, as long as this
person is authorised to use the machine) for the entire productive life of the machine.
In the case of sale, rental, use or financial leasing of the machine, the instructions must be attached to
the machine.
The employer (or their representative) must have the operators read the contents of these
instructions.
Unfamiliarity with the information and warnings given in this manual can lead to situations of risk for
the health and safety of operators.
The operator must comply with the warnings and procedures set down in these instructions in all
stages of the machine's life cycle.
Piston pumps are machines that have dangerous parts, as they are live and equipped with moving
parts. Therefore:
oAny improper use
oThe removal of the protections and/or the disconnection of the protection devices
oThe lack of inspections and maintenance
Can cause serious damage to people or things.
If the operator detects discrepancies between what is described in this document and the machine,
they must immediately inform their supervisor
1
without using the machine: incorrect or rash
manoeuvres can be a source of danger to the health of the operator and/or the people who are near
the machine.
The safety manager must ensure that the machine is handled, installed, commissioned, used,
serviced and repaired exclusively by qualified personnel who must therefore have:
oSpecific technical training and experience.
oKnowledge of technical standards and applicable laws.
oKnowledge of the general national, local and plant safety requirements.
The machine is intended to be part of an industrial plant. It is the customer's responsibility (through
their Health and Safety Manager) to guarantee overall safety and carry out the analysis of the risks
associated with the interfacing with other plant components.
Adopt the necessary additional protection measures and related signs.
The following works cannot be carried out without the authorisation of the Health and Safety Manager:
oInstallation
oSystem modifications (configuration or intended use)
oInterventions on the electrical parts of the machine.
1
Supervisor: they represent the operational function, the person who has a good knowledge of the workplace and its occupants, who
supervises the work activities and ensures that the instructions given are observed. They have duties of surveillance and supervision
of the instructions given.

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B.1 RESPONSIBILITY
The manufacturer Ragazzini S.r.l. is not responsible for:
Improper use of the machine or its use for purposes other than those envisaged;
Failure to comply with the instructions for use and maintenance provided by Ragazzini S.r.l.;
Failure to comply with the regulations and safety measures contained in this manual and/or in the
supplementary documentation provided;
Any tampering, replacement or modification (not authorised in writing by the manufacturer
Ragazzini S.r.l.) of one or more parts of the machine;
Any intervention that is not part of ordinary maintenance.
Therefore, Ragazzini S.r.l. is not responsible for any direct or indirect damage deriving from failure to
comply with the above mentioned indications.
B.2 ORIGINAL VERSION OF THE INSTRUCTIONS
This document was originally issued in Italian.
In the event of disputes due to translated versions, even if provided by Ragazzini S.r.l, the only valid text
shall remain solely and exclusively the original Italian version.
B.3 CONFORMITY OF THE PRODUCT
The machine described in these instructions was designed and built to be installed in a plant with industrial
characteristics.
The machine is marketed:
With EC declaration of conformity pursuant to directive 2006/42/EC, annex II, point 1 A.
With EC declaration of conformity pursuant to directive 2014/34/EU, annex X, letter b (ATEX
version).
Any modification that alters the design and construction characteristics of the machine in terms of the place
of use and of safety and risk prevention, may only be carried out by the manufacturer, who will
subsequently certify its compliance with the safety standards in force.
Any changes in location, modifications or maintenance operations not contemplated in this document are
to be considered unauthorised.
Under no circumstance will Ragazzini S.r.l. be held responsible in case of non-compliance with the above
safety dispositions.

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B.3.1 Copy of the EC declaration of conformity:

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B.3.2 Identification plate
The machine is identified by the type, serial number and year of construction marked on the identification
plate applied on the machine.
The following warnings must to be respected at all times:
Never remove the identification plate from the original position chosen by the machine manufacturer;
Do not alter or falsify the technical information on the plate;
Do not clean the plate using abrasive tools (such as steel brushes) to avoid making the information
illegible.
PLEASE NOTE: All the data marked on the plate must always be legible. Refer to the identification data in
all communications with the manufacturer, e.g. requests for replacement parts, information, and technical
assistance. If the plate deteriorates with use and is no longer legible, even in only one of its elements,
another one must be requested from the manufacturer, by referring to the data contained in this manual or
on the original plate.

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B.4 EXPLANATION OF THE SYMBOLS AND PICTOGRAMS USED IN THE
MANUAL
B.4.1 Warning notes
Warnings relating to possible risks to the health and safety of the operator are highlighted with warning
notes accompanied by the relative hazard pictogram (see paragraph B.4.2 “Hazard pictograms that may
be present in the instructions for use”); the text of the note is highlighted with a yellow background.
Below is an example of a warning note:
MOVING PARTS HAZARD: It is forbidden to remove or tamper with the guards.
The specific instructions / warnings for ATEX pumps are highlighted as follows (the text of the note is
highlighted with a yellow background and shows the pictogram relating to environments subject to the risk
of explosion and fire).
Note text
Instructions whose non-fulfillment compromises the correct operation of the machine are highlighted as
follows:
Note text
B.4.2 Hazard pictograms that may be present in the instructions for use
This manual contains the following hazard pictograms:
DANGER
ELECTROCUTION
MOVING PARTS
HANGING LOADS
HIGH TEMPERATURE
DANGEROUS
SUBSTANCES

INSTRUCTIONS FOR USE
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CSAFE INTERACTION WITH THE MACHINERY
C.1 WORK ENVIRONMENT
Refer to the customer's production line.
C.2 Man-machine interfaces
Refer to section L “PUMP OPTIONAL CONFIGURATIONS” for further information on the controls to be
managed by the operator, if any. For a description of the controls, refer to the attached documentation.
C.3 INTENDED USE OF THE NON-ATEX VERSION PUMP
C.3.1 Intended use of the machine
The piston pump series was designed and built by Ragazzini S.r.l. for pumping fragile, abrasive, corrosive
and alimentary fluids compatibly with the materials of which the pump itself is made and wherever the
transfer of large masses of liquids is required. Based on the characteristics of the product to be transferred,
the machine is equipped with the most suitable seals as indicated in the paragraph J.4 “SEALS”.
The machine must only be used on flat surfaces. In the version supplied with wheeled frame, turn the front
wheels with respect to the axis of the machine as a braking system.
Environmental limits of the machine:
Ambient temperature: > 0°C and ≤40°C. For ambient temperatures ≥-20°C and ≤0°C, contact
Ragazzini Technical Service.
Work environment: indoor or outdoor with protection from sunlight and bad weather.
Lighting: The area of installation must be sufficiently lit (minimum 200 lux).
ANY OTHER USE DIFFERENT FROM THE ONE DESCRIBED IS NOT ALLOWED BY THE
MANUFACTURER.
C.3.2 Prohibited use.
The equipment must not be used:
To process flammable materials.
Without liquid to be pumped (dry running) for more than 10 minutes.
For operations other than those described under paragraph C.3.1 “Intended use of the machine”.
In open environments or in closed places without a lightning protection system.
With direct exposition to sunlight.
Restrictions on the use of the machine:
It is forbidden to:
Use the machine in a configuration other than the one envisaged by the manufacturer.
Use the machine in places subject to the risk of explosion and/or fire (the machine is not certified
according to the 2014/34/EU ATEX directive).
Use the machine with fluids at a temperature higher than the one allowed by the machine
components. (See paragraph J.4 “SEALS”)
Integrate other systems and/or equipment not foreseen by the manufacturer in the design.
Remove components and parts of the machine.
Perform interventions when the machine is stopped but before disconnecting the electrical power
supply. The machine could receive a remote (“auto”) consent signal and could restart suddenly.
Move the machine, when connected to the electric power supply.
C.3.3 Reasonably foreseeable misuse of the machine
It is forbidden to:
Tamper with the machine or its safety devices;
Tamper with fixed and removable guards;
By-pass the safety devices;
Climb onto and/or walk on the machine.

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C.4 INTENDED USE OF THE ATEX VERSION PUMP
C.4.1 Intended use of the machine
The piston pump series was designed and built by Ragazzini S.r.l. for pumping fragile,
abrasive, corrosive and alimentary fluids compatibly with the materials of which the
pump itself is made and wherever the transfer of large masses of liquids is required.
Based on the characteristics of the product to be transferred, the machine is equipped
with the most suitable seals as indicated in the paragraph J.4 “SEALS”.
The machine must only be used on flat surfaces. In the version supplied with wheeled
frame, turn the front wheels with respect to the axis of the machine as a braking
system.
To ensure the correct use of the pump, always check:
The presence of lubricant, where necessary (crankcase, variator, etc.).
That the pumped fluid is always compatible with the construction materials of the pump itself.
That in the processed fluid there are not and there may not be solid parts or foreign bodies of large
dimensions or such as to cause damage or compromise safety.
That there is no oxidized steel nor ferromagnetic parts, even small ones.
That there are no conditions that could cause motor overload.
The correct grounding of the pump, the motor or other components connected to it.
Environmental limits of the machine:
Ambient temperature: > 0°C and ≤40°C. For ambient temperatures ≥-20°C and ≤0°C, contact
Ragazzini Technical Service.
Work environment: indoor or outdoor with protection from sunlight and bad weather, classified as
ATEX zone II 2G h IIB T4 Gb - II 2D h IIIB T = 135°C Db.
Lighting: The area of installation must be sufficiently lit (minimum 200 lux).
ANY OTHER USE DIFFERENT FROM THE ONE DESCRIBED IS NOT ALLOWED BY THE
MANUFACTURER.
C.4.2 Prohibited use.
The equipment must not be used:
For operations other than those described under paragraph C.4.1 “Intended use of the machine”.
In places with temperatures outside the range between -20°C and +40°C.
Near systems generating stray electrical currents.
In open environments or in closed places without a lightning protection system.
With direct exposition to sunlight.
Without liquid to be pumped (dry running) for more than 10 minutes.
Restrictions on the use of the equipment:
It is forbidden to:
Use the equipment in a configuration other than the one envisaged by the manufacturer.
Use the equipment in areas classified as Zone 0-20.
Use the equipment in areas containing gases whose flammability temperature is below 135°C.
Use the machine in areas subject to the presence of IIC classified gases.
Pump products with a temperature above 40°C; exceeding this limit does not allow compliance with
the temperature class.
Integrate other systems and/or equipment not foreseen by the manufacturer in the design.
Remove components and parts of the machine.
Use the pump in case of product/pumped fluid leaks.

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C.5 GUARDS AND SAFETY DEVICES
The machine is equipped with safety devices to prevent damage to the operator and to the machine itself.
The machine is equipped with a fixed guard preventing access to dangerous components, such guard
being fixed by means of fastening devices that require the use of tools.
The other moving parts (electric motor) are commercial components already certified by their
manufacturers.
MOVING PARTS HAZARD: It is forbidden to remove or tamper with the guards.
C.5.1 Electrical safety devices (standard configuration with electrical panel)
The machine is equipped with an electrical panel where all the control devices are installed. The
components purchased as part of the electrical equipment are identified, CE-marked and accompanied by
the relevant EC Declarations of Conformity. The machine is equipped with a red emergency stop push-
button on a yellow backplate, positioned on the electrical panel.
ELECTROCUTION HAZARD: In case of fire in the vicinity of the machine (or on the machine
itself), the use of water or other aqueous/humid extinguishing agents is prohibited, as this
presents a risk of electrocution due to indirect contact.
C.5.2 Safety functions according to the EN13849-1 standard
The safety functions implemented on the machine
2
are listed below:
Name of the safety function
PL3
Stopping of the pump upon pressing the emergency button
c
ATEX version and on request: stopping of the pump upon pressure switch intervention
c
For the technical characteristics of the pressure switch, see paragraph L.2 “PRESSURE SWITCH”.
C.5.3 Measures to reduce noise risks
The value shown below refers to the measurements made on a pump produced by Ragazzini S.r.l.,
technically comparable and representative of the machine described in these instructions.
All the other machines produced by Ragazzini S.r.l. have a noise level lower than the one reported.
Type
6NCM
Series no.
16155252
A-weighted sound pressure level in the workplace
78.6 dB (A)
C.5.4 Measures to reduce extreme temperatures risks
HIGH TEMPERATURE HAZARD: in case of pumping fluids with a constant temperature
higher than 60°C it is necessary to provide suitable signs or shielding.
C.5.5 Measures to reduce other risks
HAZARD: The machine is not equipped with lightning protection; it must be installed in places
protected against this risk.
2
The definition of safety function is given in the UNI EN ISO 13849-1 standard; a safety function is a function of the machine whose
failure can lead to an immediate increase in the risk related to the machine itself.
3
PL (Performance Level): in the UNI EN ISO 13849-1 standard the Performance Level is defined as a discrete level used to specify
the ability of safety-related control parts to perform a safety function under the intended conditions. 5 values are assigned to the
Performance Level, from PLato PLeas the risk increases (PL=e > PL=d > PL=c > PL=b > PL=a).

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C.6 Residual risks
Risks deriving from:
Inattention of the operator,
Failure to comply with the information and warnings contained in this manual,
Unauthorised uses of the machine;
Cannot be totally eliminated by a inherently safe design, due to the machine construction type.
Information on the residual risks existing despite adopting the protection measures described in this
manual are described below.
WARNING: All handling, installation, maintenance and dismantling operations must be carried
out in the absence of an explosive atmosphere.
C.6.1 Residual risks during normal use of the machine
During the normal operation of the machine there are no dangers for the operator if the guards and
protections are intact and correctly installed, as the movements that entail a hazard condition are enclosed
within the guards.
C.6.2 Risks generated by tampering and/or prohibited behaviour
In the event of tampering and/or incorrect assembly of the protection devices (belt covers) both with the
machine running and with the machine stopped, the following residual risks are generated, related to
mechanical hazards:
List of hazards
Identification of the dangerous situation
Detailed description of the risk
Type or group
Origin
Potential
consequences
Dangerous
area
Phase of
the life cycle
Mechanical
High
pressure
Projection of objects
Friction/abrasion
Machine area
Production
Maintenance
Adjustment
Risk of damage due to the projection of
objects or fluids under pressure during
operation or when the machine is stopped
due to residual pressures in the pipes or
parts of blocked pipes.
Mechanical
Rotating
parts
Dragging or
entrapment
Crushing
Shearing
Machine area
Production
Maintenance
Adjustment
Risk of contact between moving parts of
the machine (drive components, belts,
electric motor, gearbox) and parts of the
operator's body
Another source of risk for the operator caused by prohibited behaviour can arise due to failure to use
adequate PPE (Personal Protective Equipment)
C.6.3 Residual risks during maintenance
During machine maintenance, the possibility of injury is reasonably foreseeable:
To the upper limbs (abrasion against mechanical parts),
To the lower limbs (fall of mechanical parts if not adequately supported),
To the eyes (dangers generated by pressurised fluids and live elements),
To the head (contact with machine parts).
If the emergency stop button is pressed, only the power cables remain energised.
C.6.4 Dangerous areas
Based on the above considerations, the following are to be considered dangerous areas:
The area inside the machine, during execution of the production cycle with guards tampered with or
removed;
The area adjacent to the electrical panels with the door open and voltage switched on, during
troubleshooting interventions.

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C.6.5 Risks for exposed persons
Exposed persons are people not involved in the operation of the machine, therefore other people working
in the company or visitors.
These instructions do not deal with problems external to the company using the machine: in this sense, a
person standing in an area close to the company premises is not considered an exposed person.
In this type of machine there are no risks for exposed persons during operation (with the door of the
electrical panel closed and the machine in its full safety condition).
WARNING: NO ACCESS TO UNAUTHORIZED PERSONNEL
During normal operation, keep exposed persons at a safe distance from dangerous areas.
During maintenance: it is absolutely forbidden to let people go near the machine. It is
recommended to fence off the entire external perimeter area of the machine, also displaying, if
necessary, the sign “MACHINE UNDER MAINTENANCE”.
C.6.6 Information and warnings applied on the machine
Following the identification of some residual risks, some warning signs have been installed on the
machine, which have been defined in accordance with the European and international standards relating to
graphical hazard symbols to be used on systems (EN ISO 7010).
The Customer must immediately replace any warning plate that, as a result of wear, has become illegible.
The warning plates applied on the machine are the following:
Prohibition to remove guards
Obligation to read the instructions for use
WARNING:
It is absolutely forbidden to remove the warning plates applied on the machine.
Ragazzini S.r.l. declines all liability as far as the machine safety is concerned in the event of
non-compliance with this prohibition.

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C.7 Protective measures to be taken by the user
C.7.1 Personal Protective Equipment
To safeguard the operator's health in the various stages of the machine's life cycle, it is mandatory to use
(or have available) the PPE (Personal Protective Equipment) mentioned below. The manufacturer obliges
the Customer to use the machine with PPE compliant with the directive on Personal Protective Equipment
duly provided with the CE marking. The operator must comply with the directive that defines the methods
of use of personal protective equipment during work. Since it is impractical to predict all possible machine
operating conditions, the PPE listed refer only to the use of the machine: the employer must prescribe the
use of any additional PPE required in compliance with the actual situation in their production site.
PPE to be used in the various stages of the machine's life cycle
Pictogram
Description
Stage of the life cycle of the machine
Note
FOOTWEAR
transportation;
installation;
use;
maintenance;
dismantling and demolition
Use of safety shoes to avoid the risks
generated by falling materials.
DIELECTRIC
FOOTWEAR
WITHOUT
METALLIC PARTS
FOR
ELECTRICIANS
maintenance on electrical parts
Use of insulating footwear to prevent the
dangers that can be generated by direct or
indirect contacts.
PROTECTIVE
GLOVES
transportation;
installation;
maintenance;
dismantling and demolition
Gloves for hand protection available in case of
manipulation of objects that can cause damage
or injuries.
INSULATING
PROTECTIVE
GLOVES
maintenance on electrical parts
Use of insulating protective gloves to prevent
the dangers that can be generated by direct or
indirect contacts
HELMET
transportation;
installation;
use;
maintenance;
dismantling and demolition
Protective helmet to be used during machine
hoisting operations to prevent the dangers
generated by hanging loads.
SUITABLE
CLOTHING
transportation;
installation;
use;
maintenance;
dismantling and demolition
Suitable clothing, such as overalls: it is
prohibited to wear wide sleeves and/or loosen
clothing that could be easily caught in
mechanical parts.
FACE SHIELD
maintenance
Face protective shield during work on parts of
the system and on electrical parts, especially if
live.
WARNING: The machine does not exceed the noise level established by law; therefore
hearing protection earmuffs are not mandatory.
However, the operator must also carefully evaluate the environment of use: if it is very noisy,
protective earmuffs must be used. When using protective earmuffs, the operator must pay
even more attention, as one of the senses of perception of danger (hearing) is missing.
Observe the surrounding environment well, as the visual perception must compensate for the
lacking sense of hearing.

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16 LM05EN002
DGENERAL DESCRIPTION
D.1 PISTON PUMP UNIT
The piston pump can consist of the following elements (picture is indicative only):
1) PUMP
2) SERIAL PLATE
3) FRAME WITH WHEELS
4) DRIVE
5) MOTOR
6) CONNECTION FITTINGS
7) COMPENSATORS
8) CONTROL PANEL
D.2 THEORY OF OPERATION
The pumps described in this manual are volumetric pumps with double-acting cylinders and free ball
valves.
The reciprocating movement of the pistons is obtained through a “sector system” which guarantees a
linear flow (minimum accelerations) and with a double guide that supports the piston in the cylinder.
The predisposition for the installation of compensation tanks directly on the delivery and suction pipes
ensures their stability.
The flow rate is proportional to the number of revolutions.
Dry running (empty pump) for max. 10 minutes does not cause any damage.
A four-way valve allows reversing the flow in the delivery and suction pipes.

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D.3 DIMENSIONS AND VOLUME
The above images are indicative only; for more details or references to dimensions for specific
configurations contact the Technical Service of Ragazzini S.r.l.

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ETRANSPORTATION - HOISTING - STORAGE
E.1 GENERAL WARNINGS
The operator responsible for transporting, hoisting and storing the machine must:
Be a person adequately trained and informed about the work they are about to do;
Use the personal protective equipment listed in the following paragraph (see paragraph E.2);
Use suitable equipment to carry out the operations safely and check that such equipment is in perfect
condition;
Use all service equipment as intended by their respective manufacturers.
Before handling the machine, it is necessary to check the capacity and efficiency of the lifting means:
HAZARD:
To hoist the machine or some parts of it, it is necessary to use means with a minimum capacity
greater than the declared weight of the machine (about 650 kg).
Carry out hoisting and transport operations bearing in mind the following warnings:
HANGING LOAD HAZARD
During the hoisting operations make sure that there are no exposed persons in the area
occupied by the machine and in the surrounding areas. Hoisting must be carried out
seamlessly (free from abrupt movements). During the hoisting procedures, the machine must
always be in a stable and secure position. For better load stability, keep the load as low as
possible when moving the machine.
During hoisting, avoid sudden movements that could damage to the machine.
WARNING: All handling operations must be carried out in the absence of an explosive
atmosphere.
E.2 PERSONAL PROTECTIVE EQUIPMENT
The operator responsible for transporting, hoisting and storing the pump must use the following personal
protective equipment:
Pictogram
Description
Note
FOOTWEAR
Use of safety shoes to avoid the risks generated by falling materials.
PROTECTIVE GLOVES
Gloves for hand protection available in case of manipulation of objects
that can cause damage or injuries.
HELMET
Protective helmet to be used during machine hoisting operations to
prevent the dangers generated by hanging loads.
SUITABLE CLOTHING
Suitable clothing, such as overalls: it is prohibited to wear wide sleeves
and/or loosen clothing that could be easily caught in mechanical parts.

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E.3 TRANSPORTATION
The pump must be handled by means of a suitable mechanical hoisting device.
The pump is protected by a packaging consisting of a rigid bottom (pallet) and a cardboard casing.
The materials that make up the packaging are recyclable.
E.4 HOISTING
To hoist the pump, where necessary, use special straps by applying them as shown in the figure (lifting
with overhead crane or crane).
E.5 POSITIONING AND FIXING THE MACHINE
E.5.1 POSITIONING OF THE PUMP, VERSION WITH WHEELS
The pumps supplied with wheeled frame are equipped with steering wheels with handle. To position the
pump in the place intended for operation, use the handle and manually pull or push the pump.
HAZARD:
It is forbidden to connect the pump to other machinery in order to move the pump.
The machine stops by rotating the steering wheels with respect to the fixed wheels.
The rear wheels can be equipped with an optional built-in brake.
E.5.2 POSITIONING AND FIXING OF THE PUMP, VERSION WITH FIXED FRAME (OPTIONAL)
Firmly fix the pump to a fixed structure using the dedicated holes on the frame.
Install the pump on anti-vibration mounts in order to reduce vibrations.
E.6 STORAGE
Do not store the machine outdoor, in areas exposed to bad weather or very humid.
For storage periods longer than 60 days, protect any coupling surfaces with suitable antioxidant products.
The ball valves and the spare caps must be stored in a dry environment with no direct light.

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FINSTALLATION
F.1 GENERAL WARNINGS
The operator responsible for machine installation must:
Be a person adequately trained and informed about the work they are about to do;
Use the personal protective equipment listed in paragraph F.2;
Use suitable equipment to carry out the operations safely and check that such equipment is in perfect
condition;
Use all service equipment as intended by their respective manufacturers.
WARNING: All installation operations must be carried out in the absence of an explosive
atmosphere.
F.2 PERSONAL PROTECTIVE EQUIPMENT
The operator responsible for the installation procedure of the pump must use the following personal
protective equipment:
Pictogram
Description
Note
FOOTWEAR
Use of safety shoes to avoid the risks generated by falling materials.
PROTECTIVE GLOVES
Gloves for hand protection available in case of manipulation of
objects that can cause damage or injuries.
HELMET
Protective helmet to be used during machine hoisting operations to
prevent the dangers generated by hanging loads.
SUITABLE CLOTHING
Suitable clothing, such as overalls: it is prohibited to wear wide
sleeves and/or loosen clothing that could be easily caught in
mechanical parts.
F.3 OPERATION AND MAINTENANCE AREAS
The area chosen for the installation of the machine must be well lit, ventilated, far from heat sources and
such as to guarantee the correct operation of the machine, considering in particular access to the controls
and to maintenance activities. The surrounding free space must be 500 800 mm.
In case the pump must be installed outdoor, suitable shelters from direct sun and bad weather must be
provided.
HAZARD:
The machine is not equipped with lightning protection; therefore, it must be installed in areas
protected from this risk.
HAZARD:
The machine must only be used on flat surfaces. Use the handle and turn the front wheels with
respect to the axis of the machine as a braking system.