Andritz MC Manual

Medium-consistency pump MC
STANDARD, C-01-000000
Rev. 0, 2010.02.09 Kap. , Seite 1 of 2
GRZ-2698563-v1-Title_page.FM
Erection Work, Operating and Maintenance Instructions
Machine: Centrifugal pump MC
TRANSLATION OF ORIGINAL
Issued: HPU-CP/ Revision:
Checked: HPU-CP/ Checked:

Medium-consistency pump MC
STANDARD, C-01-000000
Rev. 0, 2010.02.09 Kap. , Seite 2 of 2
GRZ-2698563-v1-Title_page.FM
The operating manual is protected by copyright. All usual rights reserved. It must not
be wholly or partly reproduced without authorization by Andritz AG. Contraventions
shall entail damage claims and may have penal consequences. All rights shall also be
reserved for any patents granted, registration of trade marks and technical
modifications without prior notification.
© 2010 Andritz AG

Medium-consistency pump - MC
STANDARD, C-01-000000
Rev. 0, 2010.02.09 TABLE OF CONTENTS Page 1 von 4
GRZ-2836263-v1-Table_of_contents.FM
TABLE OF CONTENTS
1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Standards and guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.3 How to use the manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.4 Warranty and guarantee . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.5 Manufacturer's name and address . . . . . . . . . . . . . . . . . . . . 4
1.6 Copyright . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2.1 General safety regulations . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2.2 Danger and warning signs . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2.3 Designated use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.4 General remarks on machine/plant safety . . . . . . . . . . . . . 2
2.5 User's obligations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.6 General obligations of personnel . . . . . . . . . . . . . . . . . . . . . 5
2.7 Safety devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.8 Safety at the machine installation site . . . . . . . . . . . . . . . . . 9
2.9 Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.10 Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.10.1 Noise Levels (dB). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.11 Electrical equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.12 Fluids, (liquids, gases, vapour or smoke) . . . . . . . . . . . . . 11
2.13 Welding work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.14 Hydraulic and pneumatic equipment . . . . . . . . . . . . . . . . 13
2.15 Oils and greases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.16 Chemicals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.17 ATEX directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.18 Work in enclosed vessels and in confined spaces. . . . . . 17
2.19 Permit for work in enclosed / confined spaces . . . . . . . . 20
3 DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
3.1 Field of application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
3.2 Main components of the medium-consistency pump . . . . 2
3.3 Centrifugal pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3.4 Degasser/ Control cabinet. . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.5 Standpipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.6 Type specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

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3.6.1 Applicable standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.6.2 Model designation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.7 Application limiting values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.8 Technological description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4 ERECTION WORK and TRANSPORT. . . . . . . . . . . . . . . . . . 1
4.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
4.2 Safety regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
4.3 Haulage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4.4 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4.5 Erection work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.5.1 Mounting the medium-consistency pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.5.2 Pipework . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.6 Cold test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5 START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
5.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
5.2 Safety regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
5.3 Prerequisites for start-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
5.4 Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
5.5 Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6 OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
6.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
6.2 Safety regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
6.3 Control via DCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
6.4 Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
6.5 Checks after initial start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
6.6 Normal operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
6.6.1 Limits due to Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
6.6.2 Obligations to the customer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
6.7 Specification of medium-consistency pump
(delivery head and flow rate) 6
6.8 Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6.9 Operating malfunctions and troubleshooting . . . . . . . . . . . . . . . . . . . . . . 8

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7 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
7.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
7.2 Safety regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
7.3 Regular maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
7.4 Maintenance schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
7.5 Fasteners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
7.6 Lubrication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
7.6.1 Oil lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
7.7 Aligning the coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7.8 Centrifugal pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7.8.1 Removing and installing the centrifugal pump . . . . . . . . . . . . . . . . . . . . . . . . 9
7.8.2 Removing and installing the impeller, fluidisator, casing cover and mechanical
seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7.9 Changing the anti-friction bearings with oil lubrication . . . . . . . . . . . . 17
7.9.1 Changing the front lining . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.9.2 Balancing the impeller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
8 TECHNICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
9 SUPPLIER DOCUMENTATION. . . . . . . . . . . . . . . . . . . . . . . 1
9.1 100 16 - Ball valves with actuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
9.1.1 Proximity switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
9.2 100 18 - Sealing water monitoring unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
9.2.1 Flow meter VDK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
9.2.2 Flow meter SLM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
9.3 611 90 - Pump parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
9.3.1 Mechanical seals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
9.4 700 00 - Coupling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
9.4.1 Coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
9.5 XXX XX - Measuring probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
9.5.1 Control valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
9.5.2 Differential pressure transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

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1 INTRODUCTION
This manual is part of the Andritz AG technical documentation for the
machine. It is intended as a supplement to supply the basic knowledge
required for proper, safe and economical use of the equipment delivered
by Andritz AG. Observing these instructions helps avoid hazards and
reduce repair and downtime costs, as well as increasing the reliability and
useful life of machines.
1.1 Use
Target group This operating manual is intended for users with a knowledge of
mechanical engineering and is for the exclusive use of the operator and
his personnel.
Personnel entrusted with work on the machine must have read and
understood these operating instructions and comply with them. This refers
in particular to the following tasks:
•Handling, starting and stopping
•Troubleshooting
•Maintenance and upkeep
•Transportation
•Maintenance and disposal of process materials, cleaning of machine
and area around the machine.
The following sections are especially important:
•Chapter on SAFETY,
•Safety instructions contained in various other chapters
Supplementary
instructions
The mill operator shall complete this manual by adding national
regulations on safety at work, health protection and environmental
protection.
Instructions on any special operational conditions concerning work
organization, sequence of work/operations and the personnel assigned to
the job shall also be added. This includes instructions on supervising and
reporting obligations.
Storage Keep the entire operating manual near the place where the machine is
installed and within easy reach.
1.2 Standards and guidelines
The machine/plant has been built in accordance with state-of-the-art
standards and the recognized safety rules. The equipment conforms to
the equivalent European standards.

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1.3 How to use the manual
Presentation •Chapter and paragraph headings are printed in capitals in the
continuous text.
Chapter on SAFETY
•Designations of indicating and handling elements are written in
inverted commas in the continuous text.
Operate switch ”xxx”
•Lists without numbering do not require operations to be carried out in a
certain order.
Pictograms The following pictograms are used in the manual:
Work steps
(operations)
Work steps are presented in tables. Work steps are numbered and must
be carried out in the order specified.
Warning signs
Warning signs are shown with an explanation of the
type of hazard.
The meanings of the different graduations of hazards
are described in the Chapter on SAFETY.
Marks an instruction on handling of the machine or
system.
Marks a useful piece of information
Marks a cross-reference to another Chapter with
absolute path indication.
e.g. /MEDIUM-CONSISTENCY PUMP/SAFETY

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Item numbers
Numbering of
pages, tables and
figures
Abbreviations
1.4 Warranty and guarantee
Andritz AG's general terms of delivery and sale shall apply.
Guarantee and liability claims towards Andritz AG shall become void if
personal injury or material damage is caused by one or several of the
following:
•Use of the machine/system for any purpose other than its designated
use.
•Non-conformity of erection work, start-up and handling of the
machine/system.
•Non-observance of the safety instructions in the manual.
•Non-authorized structural changes to the machine/system.
•Non-observance of the maintenance and upkeep instructions.
In the event of a claim for repair under guarantee, ANDRITZ AG reserves
the right to assess the damage to the machine/system.
12 The item numbers shown in this format refer to the
assembly drawing and the parts list.
Pages Consecutive numbering of Chapters 2-1
Tables Tab.+ Consecutive numbering of Chapters Tab. 2-1
Figures Fig. + Consecutive numbering of Chapters Fig. 2-1
Tab. Table
Fig. Figure

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1.5 Manufacturer's name and address
Andritz AG
Stattegger Strasse 18
A-8045 Graz
Our Service Department will be pleased to help you and can be contacted
at:
Andritz AG
Stattegger Strasse 18
A-8045 Graz
Service department for pumps
Tel.: [phone]
Fax: [phone]
email: Johann.T[email protected]
In case of emergency outside working hours:
Tel.: [phone]
1.6 Copyright
The operating manual is protected by copyright. All usual rights reserved.
It must not be wholly or partly reproduced without authorization by Andritz
AG. Contraventions shall entail damage claims and may have penal
consequences. All rights shall also be reserved for any patents granted,
registration of trade marks and technical modifications without prior
notification.
© 2010 Andritz AG

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2SAFETY
2.1 General safety regulations
The chapter on safety contains general safety regulations which must be
observed when working on the machine/plant.
In addition to the present safety regulations, the various chapters of the
operating manual contain further safety regulations relating to individual
tasks. DANGER and WARNING SIGNS highlight these additional safety
regulations in the operating instructions.
Safety instructions on components not supplied by ANDRITZ AG are
contained in the descriptions of these individual components (
/MEDIUM CONSISTENCY PUMP MC/ SUPPLIER DOCUMENTATION).
The safety instructions supplement ANDRITZ AG's operating instructions.
All safety instructions must be observed. Disregarding the safety
instructions may cause a risk to life and limb, environmental pollution
hazards and/or damage to property.
2.2 Danger and warning signs
The entire SAFETY chapter is of extreme importance and relevant to
safety. Thus, the information in this chapter is not marked with special
danger and warning symbols.
In the Chapters on ERECTION WORK, START-UP, OPERATION, and
MAINTENANCE in this Manual, warnings are marked by a pictogram. The
following warning signs are used:
DANGER
This symbol indicates there may be a risk to life and limb.
Non-compliance with the warning signs may lead to serious health
problems or even fatal injuries, and can cause extensive damage to
property.
WARNING
This symbol indicates that there is an imminent health risk, as well
as a risk of environmental pollution and of damage to property.
Non-compliance with the warning signs may cause moderate health
problems and/or extensive environmental pollution and damage to
property.
CAUTION
This symbol gives warning of a dangerous situation.
Non-observance of these signs may cause environmental pollution and
damage to property.

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Further symbols and pictograms used are described under
INTRODUCTION.
2.3 Designated use
The medium-consistency pump should only be used according to the
specifications forming part of the purchase order.
Any change in the application must be checked by the operator and, if
necessary, approved by Andritz AG.
Non-observance of the application can lead to environmental or property
damage, or to personal injury.
Any modifications to the scope of supply made without the agreement of
Andritz AG are considered contrary to the designated use.
The term designated use also covers adherence to the operating
instructions, compliance with the operating, inspection and maintenance
conditions and with the regulations on cleaning and upkeep.
The limit values stated in the operating instructions should not be
exceeded under any circumstances.
2.4 General remarks on machine/plant safety
Information mounted directly on the pump, e.g.
•Direction of rotation arrow, earthing connection
•Labelling by operator (e.g. medium, temperature, etc.)
•Labelling for connections
must always be taken into account and maintained in a legible condition.
The medium-consistency pump has been built in accordance with
state-of-the-art standards and the recognized safety rules. Nevertheless,
its use may constitute a risk to life and limb of the user or of third parties,
or cause damage to the machine/plant and to other material property.
The medium-consistency pump may only be operated when in perfect
condition and with due consideration to safety and the risks involved. All
protective devices and the emergency cut-out devices must be in place
and fully functional.
Malfunctions and unforeseen changes in the medium-consistency pump
must be remedied immediately.

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2.5 User's obligations
Designated use The user of the medium-consistency pump is responsible for its
designated use.
Work instructions In addition to the operating instructions, applicable legal stipulations in the
user countries and other rules governing safety at work, health and
environmental protection must be observed and personnel instructed in
these matters.
Qualification of
personnel
assigned
The medium-consistency pump may only be operated, maintained and
serviced by authorized, skilled personnel with hands-on training.
Personnel must be of the legal minimum age.
Any person undergoing training, serving an apprenticeship or being
instructed must not work on the medium-consistency pump except under
the supervision of an experienced person.
Instructions The user's operating and maintenance personnel will be instructed by
manufacturer's personnel or his contractual distributor upon completion of
installation work.
The user undertakes to have new, additional operating and maintenance
personnel instructed in machine operation and maintenance of the
medium-consistency pump to the same extent and applying the same
care, and with due consideration to the safety instructions.
Workers entrusted with the transportation, erection work and start-up of
the medium-consistency pump must have read and understood the
operating instructions, especially the chapter on SAFETY, the safety
instructions concerning a certain activity, as well as the safety instructions
issued by sub-suppliers.
Definition of areas
of responsibility
The user shall be responsible for:
•Definition of the machine operator's responsibility and his right to give
instructions
•Definition of the contents and of responsibility for keeping the records
on functioning and any failure of the monitoring equipment (log book),
•Personnel areas of responsibility in terms of operating, tooling,
maintenance and upkeep.

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Inspections The operator undertakes
•to check at regular intervals whether the safety instructions and
regulations governing work on the medium-consistency pump are
observed.
•to carry out regular training to confirm the level of knowledge of the
operating and maintenance personnel.
Attaching safety
devices
The user shall ensure that the following equipment, regulations, symbols
and instructions are mounted in the production area:
•Safety devices and regulations (see Chapter 2.7)
•Fire prevention regulations
•Markings on the floor for vehicle routes, protective fencing and danger
areas (yellow)
•Fencings and covers
•Railings (foot, centre and chest height)
•Emergency lighting
•Emergency-off switch or another electric separation unit appropriatly
identifiable
•Repair switch for drive motors
•Signs on fire-fighting equipment
•Signs for emergency calls
•Direction arrows to exits
•Direction arrows to escape routes
•Signs to first-aid post

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2.6 General obligations of personnel
To avoid personal and material damage, all persons working on the
machine shall observe the following safety instructions:
•Observe the safety instructions in the operating regulations and on the
medium-consistency pump.
•Stop and secure the medium-consistency pump in case of a
safety-relevant functional disorder. Report disorders and have them
repaired immediately.
•Do not perform any work in a manner disregarding safety
considerations.
•Use only the machine accesses, paths and passages foreseen for this
purpose.
•Do not touch moving and rotating parts and/or reach out beyond them.
•Keep the machine and the workplace clean. Do not place tools or
other objects on the medium-consistency pump.
•Do not wear any garments/pieces of jewellery which might get stuck
on rotating/moving pump parts, This includes ties, scarves, rings and
necklaces.
•Do not wear long hair hanging down.
•Familiarize yourself with the function and any failure of machine
monitoring equipment (log book) before starting work.
•Refrain from smoking in the vicinity of the medium-consistency pump.
•Personal protective apparel must be worn when working on the
medium-consistency pump. (see Section 2.8).
•Due to the high temperatures and humidity, people wearing glasses
may find that their glasses steam up, thus exposing the wearer to a
risk of injury.
•The operating personnel must be acquainted with the safety data
sheets in order to be able to recognise how dangerous the chemicals
can be.

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2.7 Safety devices
The medium-consistency pump must not be operated without effective
safety equipment.
Safety equipment must not be circumvented, dismantled or made
unserviceable during operations. The safety equipment is there to protect
operating personnel.
Safety equipment and access thereto must be kept clear.
Safety covers The medium-consistency pump must not be operated without safety
covers mounted.
Abb. 2-1 shows the protective covers for the medium-consistency pump.
Abb. 2-1 Safety covers at the medium-consistency pump
Safety cover
Safety Cover

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Indicative, warning
and prohibiting
signs
Indicative, warning and prohibiting signs must be observed. They must be
checked regularly for legibility and completeness and they must not be
removed or obstructed.
The following indicative, warning and prohibiting signs are attached to the
machine.
Chemicals:
If the pump is used in the chemicals sector, the operator must mount
appropriate safety instructions on the plant.
Examples of signs required where chemicals are used:
Hot surface Prohibiting sign at standpipe’s manhole
Burn hazard, pressurized steam
Warning against toxic
substances
Caustic substances Risk of oxidising
substance
Do not open during
operation and
without written
permission.

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General protective
apparel
Operating personnel must use and carry personal protective equipment
along with them in accordance with the national regulations or as
specified by the plant operator.
It should be compulsory to wear hard-toed boots throughout the entire mill
premises.
In adddition to the regulations applying, we recommend using the
following safety equipment for certain work:
Key to symbols
Activity Safety equipment
Time spent in the immediate
vicinity of the machine while it is
running
Taking pulp samples
Field installation and
maintenance work for which
parts of the machine have to be
removed
Tab. 2-1 Recommended safety equipment for certain work
Protective clothing to prevent the
pulp from coming into contact
with the skin
Safety shoes as protection
against foot injuries
Gloves to prevent hand injuries Ear protection to prevent damage
to hearing
Goggles to prevent eye injuries Standard hard hat as protection
against head injuries
Tab. 2-2 Purpose of the safety equipment

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2.8 Safety at the machine installation site
Adequate lighting must be provided (industrial lighting).
The foundations must be sized to withstand the loads caused by the
medium-consistency pump. The customer will be provided with a load
plan.
The area around machine and marked escapes are to be kept clear. The
area around machine must be marked as danger zone.
Make sure machine and surrounding area are kept clean. In particular, oil
and grease on the floor and on machine elements may cause slipping.
Thus, they present a considerable risk of injuries, particularly in
combination with tools.
The floor around the medium-consistency pump must be provided with a
non-slip finish.
In order to prevent any falls from or damage to the machine, it is forbidden
to climb onto machine elements or on the machine (except for the
treading areas provided). Use ladders or similar equipment in accordance
with recognised standards.
Ramps, platforms and lifts must be used to avoid injury or excessive
physical effort.
2.9 Temperature
If stock temperature exceeds 80°C the operator must take the necessary
steps as isolation, distance protection and exclusion zone as well as all
essential safety measures (e.g. protection for hands, training of operating
staff, etc.).
Furthermore the warning sign "Hot surface" mounted at the pump advices
against burn hazards.
Maintenance is not allowed to be started before the surface is cooled off.
2.10 Noise
The total noise emissions from all machines in the production room can
restrict spoken communication and impair hearing.
The machine is designed such that no operator is required in the
immediate vicinity of the machine during normal operation. Appropriate
hearing protection should be worn throughout maintenance and adjusting
work while the machine is running.

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2.10.1 Noise Levels (dB)
The sound power levels were detected according to ISO/DIS 9614, Part II.
It is impossible to measure all applications. That is why values have been
calculated according to the Europump Guideline 001/30/E, Forecasting
the Airborne Noise Emission of Centrifugal Pumps.
rpm dB
1000 73
1500 77
2200 83
Tab. 2-3 Noise levels in respect of motor speed level