SKF LINCOLN FF Series User manual

Version 02
951-180-076-EN
EN
Operating instructions
according to ATEX Directive 2014/34/EU
FF and FB
EEX multiline pump units
for use in progressive centralized lubrication systems

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951-180-076-EN
Version 02
EN
Jürgen Kreutzkämper
Manager R&D Germany Stefan Schürmann
Manager R&D Walldorf
EU Declaration of Conformity pursuant to ATEX Directive 2014/34/EU, Annex X
The manufacturer, SKF Lubrication Systems Germany GmbH, Walldorf Plant, Heinrich-Hertz-Straße 2-8, DE - 69190 Walldorf hereby declares the confor-
mity of the device:
Designation: Multiline pump unit, FF...A4056; FF...A4060; FF...A4070; FF...A4073
FB...D4128; FB...D4130
Year of manufacture: See rating plate
Explosion protection marking: II 2G Ex h IIC T4 Gb =>FF... A4056; FB...D4128
II 2D Ex h IIIC T125°C Db => FF... A4060; FF... A4070; FB...D4130
II 2D Ex h IIIC T135 °C Db => FF... A4073
with all essential safety and health requirements of ATEX Directive 2014/34/EU as well as the basic safety and health requirements protection requirements
of Machinery Directive 2006/42/EC specified below at the time of placing on the market.
1.1.2 · 1.1.3 · 1.3.2 · 1.3.4 · 1.5.1 · 1.5.6· 1.5.8 · 1.5.9 · 1.6.1 · 1.7.1 · 1.7.3 · 1.7.4
The technical documentation pursuant to:
ATEX Directive 2014/34/EU Annex VIII No. 2 has been prepared and filed with the conformity assessment body.
Machinery Directive 2006/42/EC Annex VII Part B has been prepared.
We undertake to transmit these in electronic form in response to a reasoned request by the national authorities. The Head of Technical Standards is the
authorized representative for the technical documentation. See the manufacturer information for the address.
Standard
Standard
Edition
Standard
Edition
Standard
Edition
Guideline
Edition
EN ISO 12100:2010 EN 1127-1 2011 EN ISO 2016 EN 50581 2012 2014/30/EU 2014
EN 809: 1998+A1:2009/AC2010 EN 60204-1:2006/AC:2010 EN ISO 2016 2011/65/EU RoHS II 2011
The device must not be put into service until the machinery into which it is to be incorporated has been declared in conformity with the provisions of ATEX Di-
rective 2014/34/EU, Machinery Directive 2006/42/EC, and all other applicable Directives.
Walldorf, 11/12/2019
EU Declaration of Conformity

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Masthead
Training
SKF conducts detailed training in order to
enable the maximum safety and efficiency.
SKF recommends taking advantage of this
training. For information, contact the rel-
evant SKF service address.
Copyright
© Copyright SKF
All rights reserved.
Warranty
The instructions do not contain any infor-
mation on the warranty. This can be found in
our General Terms and Conditions.
Notes on operating instructions
These operating instructions are manufac-
turer operating instructions in accordance
with ATEX Directive 2014/34/EU, Annex X.
The instructions are an integral part of the
described products and must be kept for
future use.
Disclaimer of liability
The manufacturer shall not be held liable for
damage resulting from:
○Improper usage, assembly, operation,
configuration, maintenance, repair, or
accidents
○Improper reaction to malfunctions
○Unauthorized modifications to the
product
○Intentional or gross negligence
○Use of non-original SKF spare parts
The maximum liability for loss or damage
resulting from the use of our products is
limited to the purchase price. Liability for
indirect damage of any kind is excluded.
Masthead
Manufacturer
SKF Lubrication Systems Germany GmbH
Address of manufacturer plants
Headquarters
Walldorf Plant
Heinrich-Hertz-Str. 2-8
69190 Walldorf
Germany
Tel.: [phone]
Fax: [phone]
Berlin Plant
Motzener Strasse 35/37
12277 Berlin
Germany
Tel. [phone]
Fax [phone]
E-mail: Lubrication-german[email protected]om
www.skf.com/lubrication

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EN Table of contents
Table of contents
Masthead .......................................................................................... 3
Explanation of symbols and signs ....................................................... 7
1. Safety instructions ........................................................................ 9
1.1 General safety instructions ....................................................................9
1.2 General behavior when handling the product .....................................9
1.3 Intended use ..........................................................................................10
1.4 Foreseeable misuse ..............................................................................10
1.5 Painting plastic components ...............................................................11
1.6 Modifications to the product ................................................................11
1.7 Prohibition of certain activities ............................................................11
1.8 Inspections prior to delivery ................................................................11
1.9 Referenced documents ........................................................................12
1.10 Markings on the product ......................................................................12
1.11 Notes on the rating plate .....................................................................13
1.12 Note on CE marking .............................................................................13
1.13 Persons authorized to use the product ..............................................14
1.13.1 Operator ...........................................................................................14
1.13.2 Qualified mechanic .........................................................................14
1.13.3 Qualified electrician ........................................................................14
1.13.4 Specialist in maintenance and servicing in
potentially explosive atmospheres ...............................................14
1.14 Instruction of outside fitters ................................................................14
1.15 Provision of personal protective gear .................................................14
1.16 Operation ...............................................................................................15
1.17 Emergency shutdown ..........................................................................15
1.18 Transport, assembly, maintenance, malfunction,
repair, shutdown, disposal ...................................................................15
1.19 Initial commissioning, daily startup ....................................................17
1.20 Cleaning .................................................................................................17
1.21 Special safety instructions regarding explosion protection .............18
1.22 Nullification of ATEX approval .............................................................20
1.23 Operation in potentially explosive atmospheres ...............................20
1.24 Explosion protection marking .............................................................20
1.25 Obligations of the operator ..................................................................20
1.25.1 Identification of hazards ................................................................20
1.25.2 Explosion protection measures.....................................................21
1.25.3 Provision of necessary information ..............................................21
1.25.4 Duty to provide instruction and training ......................................22
1.26 Residual risks ........................................................................................23
1.27 Residual ATEX risks...............................................................................24
2. Lubricants ................................................................................... 26
2.1 General information .............................................................................26
2.2 Selection of lubricants ..........................................................................26
2.3 Material compatibility ...........................................................................27
2.4 Aging of lubricants ................................................................................27
2.5 Lubricants in potentially explosive atmospheres ..............................27
3. Overview, functional description ................................................ 28
3.1 Operation of a multiline pump unit ....................................................29
3.2 Pump element operation .....................................................................30
3.3 Designs ..................................................................................................30

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Table of contents
4. Technical data ............................................................................. 32
4.1 FF multiline pump unit, characteristics for designs 1M and 2M ....32
4.1.1 VEM motor characteristics, design “tb” (dust) .............................33
4.1.2 Siemens motor characteristics, design “tb” (dust) ......................35
4.1.3 VEM-Sondermotorkenngrößen, Ausführung "tb" (Staub) .......36
4.1.4 Cemp -Sondermotorkenngrößen, Ausführung "tb" (Staub) ....37
4.1.5 VEM motor characteristics, design “d/de” (gas) ..........................38
4.1.6 Displacement of pump elements ..................................................40
4.1.7 FF type code ....................................................................................41
4.2 FB multiline pump unit, characteristics for designs 1M and 2M ....42
4.2.1 VEM motor characteristics, design “tb” (dust) .............................43
4.2.2 VEM motor characteristics, design “d/de” (gas) ..........................44
4.2.3 Displacement of pump elements ..................................................46
4.2.4 FB type code ....................................................................................47
5. Delivery, returns, storage, transport .......................................... 48
5.1 Delivery ..................................................................................................48
5.2 Return shipment ...................................................................................48
5.3 Storage ...................................................................................................48
5.3.1 Corrosion protection .......................................................................48
5.3.2 Special storage conditions for motors ..........................................49
5.4 Transport ...............................................................................................49
5.4.1 Transporting the multiline pump unit using transport
net and crane ..................................................................................50
5.4.2 Transport by pallet truck or forklift ...............................................51
6. Assembly ..................................................................................... 52
6.1 General information .............................................................................52
6.1.1 Assembly location ...........................................................................53
6.2 Mechanical connection .........................................................................53
6.2.1 Minimum mounting dimensions ..................................................53
6.2.2 Tightening torques .........................................................................54
6.2.3 Assembly holes ...............................................................................54
6.2.4 Assembly process ...........................................................................54
6.2.5 Assembly drawing FF, 1M ..............................................................56
6.2.6 Assembly drawing FF, 2M ..............................................................57
6.3 Removal and clearance dimensions of the FF fill level controls ......58
6.3.1 Assembly drawing FB, 1M; drive position A (standard) .............59
6.3.2 Assembly drawing FB, 1M; drive position B ................................60
6.3.3 Assembly drawing FB, 1M; drive position G (standard) .............61
6.3.4 Assembly drawing FB, 1M; drive position E ................................62
6.3.5 Assembly drawing FB, 2M; drive position H ...............................63
6.4 Removal and clearance dimensions of the FB fill level controls .....64
6.5 Electrical connection ............................................................................65
6.5.1 Establish the motor connection ....................................................67
6.5.2 Establishing equipotential bonding connection ..........................67
6.6 Manual fill level control ........................................................................69
6.7 Electrical connection of fill level controls ...........................................69
6.7.1 Fill level control E ............................................................................70
6.7.2 Fill level control F ............................................................................71
6.7.3 Fill level control H ...........................................................................72
6.7.4 Fill level control J (only on 30-kg reservoir) ................................74
6.7.5 Fill level control W for oil applications ..........................................75
6.8 Lubrication line connection .................................................................76
6.8.1 Assembly of the lubrication lines ..................................................77

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7. Initial commissioning .................................................................. 78
7.1 Venting of pump elements ..................................................................78
7.2 Varying pump displacement ................................................................79
7.3 Filling with lubricant .............................................................................80
7.4 Inspections before initial commissioning ...........................................82
8. Operation .................................................................................... 83
8.1 Refilling lubricant ..................................................................................83
9. Cleaning ...................................................................................... 84
9.1 Cleaning agents.....................................................................................84
9.2 Exterior cleaning ...................................................................................84
9.3 Interior cleaning ....................................................................................84
10. Maintenance ............................................................................... 85
10.1 General ...................................................................................................85
10.2 Maintenance checklist for pump units ..............................................86
10.3 Electric motor maintenance schedule ................................................87
10.4 Gear train (gearbox) maintenance ......................................................88
11. Malfunctions, causes, and remedies ........................................... 89
11.1 Commissioning malfunctions ..............................................................89
11.2 Operational malfunctions ....................................................................90
11.3 Malfunctions on fill level control .........................................................91
12. Repairs ........................................................................................ 92
12.1 Removing a pump element .................................................................92
12.2 Installing a pump element ...................................................................93
13. Shutdown, disposal .................................................................... 96
13.1 Temporary shutdown ...........................................................................96
13.2 Permanent shutdown, disassembly ...................................................96
13.3 Disposal ..................................................................................................96
14. Spare parts ................................................................................. 97
14.1 Pressure regulating valve for grease
(for insertion into pump elements) .....................................................97
14.2 Pump element with ring piece ............................................................97
14.3 Screw union...........................................................................................98
14.4 Threaded socket....................................................................................98
14.5 Fill level control
(complete reservoir kit) ........................................................................98
15. Appendix ................................................................................... 100
15.1 Declaration of Conformity for motor, manufacturer VEM ............. 100
15.2 Declaration of Conformity for motor, manufacturer ATB .............. 103
15.3 Declaration of Conformity for motor, manufacturer Siemens ..... 104
15.4 Declaration of Conformity for motor, manufacturer CAMP ......... 105
15.5 Declaration of Conformity for fill level control W ........................... 106
15.6 Declaration of Conformity for fill level control J ............................. 107
15.7 Associated supplier documentation ................................................ 108

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Explanation of symbols, signs, and abbreviations
Explanation of symbols and signs
General warning Risk of electrical shock Risk of slipping Hot surfaces
Being drawn into machinery Crushing hazard Pressure injection Suspended load
Electrostatic sensitive
components
Potentially explosive
atmosphere Pressure injection Unauthorized persons must be kept away.
Wear personal protective gear
(goggles)
Wear personal protective gear
(face mask)
Wear personal protective gear
(gloves)
Wear personal protective gear
(protective clothing)
Wear personal protective gear
(protective footwear) Unlock the product General notes CE marking
Disposal, recycling Disposal of waste electrical
and electronic equipment
Warning level Consequence Probability Symbol Meaning
DANGER Death, serious
injury Immediate lChronological instructions
WARNING Death, serious
injury Possible ¡Bullet list items
CAUTION Minor
injury Possible Indicates the requirements that must be met for the actions
described in the following
IMPORTANT NOTE Property damage Possible

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951-180-076-EN
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EN Explanation of symbols, signs, and abbreviations
Abbreviations and conversion factors
re regarding °C degrees Celsius °F degrees Fahrenheit
approx. approximately K Kelvin Oz. ounce
i.e. that is N Newton fl. oz. Fluid ounce
incl. including h hour in. inch
min. minimum s second psi pound per square inch
max. maximum d day sq.in. square inch
min minute Nm Newton meter cu. in. cubic inch
etc. et cetera ml milliliter mph miles per hour
e.g. for example ml/d milliliters per day RPM revolutions per minute
kW kilowatt ccm cubic centimeter gal. Gallon
U voltage mm millimeter lb. pound
R Resistance l liter hp horsepower
I current intensity db (A) sound pressure level kp kilopound
V volt > greater than fpsec feet per second
Wwatt < less than Conversion factors
AC alternating current ± plus minus Length 1 mm = 0.03937 in.
DC direct current Ø diameter Area 1 cm² = 0.155 sq.in.
A ampere kg kilogram Volume 1 ml = 0.0352 fl.oz.
Ah ampere hour RH relative humidity 1 l = 2.11416 pints (US)
Hz Frequency (Hertz) ≈ approximately Mass 1 kg = 2.205 lbs
NC normally closed contact = equal to 1 g = 0.03527 oz.
NO normally open contact % percent Density 1 kg/cm³ = 8.3454 lb./gal(US)
‰ per mil (thousandth) 1 kg/cm³ = 0.03613 lb./cu.in.
≥ greater or equal Force 1 N = 0.10197 kp
≤ less or equal Pressure 1 bar = 14.5 psi
mm2square millimeter Temperature °C = (°F-32) x 5/9
rpm Revolutions per minute Power 1 kW = 1.34109 hp
Acceleration 1 m/s² = 3.28084 ft./s²
Speed 1 m/s = 3.28084 fpsec
1 m/s = 2.23694 mph

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1. Safety instructions
1. Safety instructions
1.1 General safety instructions
○The operator must ensure that the in-
structions are read by all persons tasked
with working on the product or who
supervise or instruct such persons. The
operator must also ensure that the staff
fully understands the content of the in-
structions. Putting the products into op-
eration or operating them without having
read the instructions is prohibited.
○Retain the instructions for further use.
○The products described here were
manufactured according to the state of
the art. Risks may, however, arise from
non-compliant usage and may result in
personal injury or damage to material
assets.
○Any malfunctions which may affect safety
must be remedied immediately. In ad-
dition to these instructions, the statu-
tory regulations for accident prevention
and environmental protection must be
observed.
1.2 General behavior when handling the
product
○The product may only be used in aware-
ness of the potential dangers, in proper
technical condition, and according to the
information in this manual.
○Familiarize yourself with the functions
and operation of the product. The speci-
fied assembly and operating steps and
their sequences must be observed.
○Any unclear points regarding proper
condition or correct assembly/operation
must be clarified. Operation is prohibited
until issues have been clarified.
○Unauthorized persons must be kept
away.
○Wear personal protective equipment.
○All safety regulations and in-house
instructions relevant to the particular
activity must be observed.
○Responsibilities for different activities
must be clearly defined and observed.
Uncertainty seriously endangers safety.
○Protective and safety mechanisms must
not be removed, modified, nor disabled
during operation and must be checked
for proper function and completeness at
regular intervals.
○If protective and safety mechanisms
must be removed, they must be rein-
stalled immediately following conclusion
of work and then inspected for proper
function.
○Any malfunctions that occur must be
resolved according to responsibility. The
supervisor must be notified immediately
in case of malfunctions outside one's in-
dividual scope of responsibility.

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EN 1. Safety instructions
1.3 Intended use
Feed lubricants only in compliance with the
specifications, technical data, and limits pre-
sented in this manual.
Only media approved for these types of
pump units may be used. Unsuitable media
may result in pump unit failure and po-
tentially severe bodily injury or death and
property damage. The use of synthetic and
biodegradable oils or greases requires prior
approval from SKF Lubrication Systems
Germany GmbH.
Usage is permitted exclusively in the context
of commercial business activity by profes-
sional users.
1.4 Foreseeable misuse
Any usage of the product other than as
specified in this manual is strictly prohibited.
Particularly prohibited are:
○Use outside the specified operating tem-
perature range
○Use of non-specified equipment
○Use without a pressure regulating valve
○Use in continuous operation
○Use in areas with aggressive, corrosive
substances (e.g., high ozone loads)
○in areas with damaging radiation (e.g.,
ionizing radiation)
○Use to feed, forward, or store hazardous
substances and mixtures as defined in
Annex I Part 2-5 of the CLP Regulation
(EC 1272/2008) that are marked with
hazard pictograms GHS01-GHS 09
○Never use any part of the centralized
lubrication system as a stand or step or
for climbing.
○Use to feed / forward / store gases,
liquefied gases, dissolved gases, va-
pors, or fluids whose vapor pressure
exceeds normal atmospheric pressure
(1013 mbar) by more than 0.5 bar at
their maximum permissible operating
temperature
○Use in another, more critical explosion
protection zone
○Use with a missing, damaged, or improp-
erly performed subsequent finish The
finish must meet the requirements of
standards applicable to ATEX.

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1. Safety instructions
1.5 Painting plastic components
The painting of all plastic components and
seals of the products described here is pro-
hibited.
Completely remove or mask affected com-
ponents before painting the main machine.
1.6 Modifications to the product
Unauthorized modifications and changes
can have an unpredictable effect on safety.
Unauthorized modifications and changes
are therefore prohibited.
1.7 Prohibition of certain activities
The following activities must be performed
only by employees of the manufacturer or
authorized persons due to possibly unde-
tectable sources of error or due to statutory
requirements:
○Repairs, modifications to the drive
○Replacement, modifications to the pis-
tons of the pump elements
1.8 Inspections prior to delivery
The following tests were performed prior to
delivery:
○Safety and functional tests
○For electrically operated products: Elec-
trical tests according to DIN EN 60204-
1:2007, VDE 0113-1:2007
○For explosion-proof products: Inspec-
tions pursuant to the requirements of the
ATEX Directive

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EN 1. Safety instructions
1.10 Markings on the product
Symbol Description Order No. Quantity
Motor rotation arrow
24-1826-2570
1 set, consisting of
1 arrow and 10 PE
stickers
Equipotential bonding connection (PE)
Pinch point
(on open reservoir) 44-1826-3096 1
Rotation arrow
PE connection
PE connection
1.9 Referenced documents
In addition to this manual, the following
documents must be observed by the re-
spective target group:
○Operational instructions, approval rules
○The safety data sheet of the lubricant
used
If necessary:
○Project planning documents
○Instructions from suppliers of purchased
parts
○Instructions for other components for
setting up the centralized lubrication
system
○Other relevant documents for integration
of the product into the main machine,
system
○The explosion protection document of
the operator
Fig.1 Positioning of warning labels

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1. Safety instructions
1.11 Notes on the rating plate
The rating plate provides important data
such as the type designation, order number,
etc.
To avoid loss of this data in case the rating
plate becomes illegible, these characteristics
should be entered in the manual.
Model 76____________________________
P. No AG___________________________
______________________________
KW/JJ
XYZ
SKF Lubrication Systems Germany GmbH
Made in Germany
-15 °C < Ta < +40°C
EX
1.12 Note on CE marking
The CE marking is based on the require-
ments of the applied Directives:
○2014/34/EU ATEX Directive
○2014/30/EU
Electromagnetic compatibility
Note on Low-Voltage Directive 2014/35/EU
The protection objectives of Low-Voltage
Directive 2014/35/EU are met in ac-
cordance with Annex II, No. 1.2.7 of ATEX
2014/34/EU.
Note on Pressure Equipment Directive
2014/68/EU
Due to its performance characteristics, the
product does not reach the limit values
defined in Article 4, Paragraph 1, Subpara-
graph (a) item (i) and is, pursuant to Article
4, Paragraph 3, excluded from the scope of
Pressure Equipment Directive 2014/68/EU.

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EN 1. Safety instructions
1.13 Persons authorized to use the
product
1.13.1 Operator
A person competent due to training, knowl-
edge, and experience to execute the func-
tions and activities associated with normal
operation; this also includes the avoidance
of possible hazards that may arise during
operation.
1.13.2 Qualified mechanic
A person with appropriate technical train-
ing, knowledge, and experience who can
recognize and avoid the hazards that may
occur during transport, assembly, commis-
sioning, operation, maintenance, repair, and
dismantling
1.13.3 Qualified electrician
A person with appropriate technical training,
knowledge, and experience who can recog-
nize and avoid hazards that may result from
electricity
1.13.4 Specialist in maintenance and
servicing in potentially explosive
atmospheres
This is a person competent due to qualified
technical education, training, and
experience to recognize risks and possible
hazards when working on the device or sub-
components in potentially explosive atmo-
spheres and to rectify these by taking suit-
able actions. The specialist has knowledge of
the various types of protection, installation
procedures, and explosive atmosphere clas-
sifications. The specialist is familiar with the
rules and requirements relevant to his or
her activity and explosion protection, espe-
cially ATEX Directives 2014/34/EU and
1999/92/EC.
1.14 Instruction of outside fitters
Before commencing work, the operator
must inform outside fitters of the opera-
tional safety regulations, applicable accident
prevention regulations, and the functions of
the main machine and its protective devices.
1.15 Provision of personal protective gear
The operator must provide personal protec-
tive gear appropriate for the location and
intended application. This also includes ESD
clothing and ESD tools for work in a poten-
tially explosive atmosphere.

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1. Safety instructions
1.16 Operation
The following must be observed during
commissioning and operation:
○All information within this manual and
all information within the referenced
documents
○All laws and regulations that the operator
must observe
1.17 Emergency shutdown
Shut down the product in an emergency by:
○Switching off the main machine in which
the product is integrated
○If necessary, pressing the on/off switch
on the main machine
1.18 Transport, assembly, maintenance, malfunction, repair, shutdown, disposal
○All relevant persons must be informed of
the activity prior to the start of this work.
Precautionary operational measures,
work instructions must be observed.
○Transport only with suitable transport
and lifting gear on suitable paths.
○Maintenance and repair work can be
subject to restrictions at low or high tem-
peratures (e.g., altered flow properties
of the lubricant). Maintenance and repair
work should therefore preferably be per-
formed at room temperature.
○Prior to performing work, the product
and the machine in which the product
will be integrated must be de-energized,
depressurized, and secured against un-
authorized activation.
○Take appropriate measures to ensure
that moving, detached parts are im-
mobilized during the work and that no
limbs can be pinched by unintended
movements.
○Assemble the product only outside the
operating range of moving parts, at an
adequate distance from sources of heat
or cold. Other units of the machine, the
vehicle must not be damaged or impaired
in their function by the installation.
○Dry any wet, slippery surfaces or cover
appropriately.
○Cover hot or cold surfaces appropriately.
○Work on electrical components may be
performed only by qualified electricians.
Note possible waiting times for discharge.
○Work on electrical components
may be performed only in a voltage-free
state and using tools suitable for electri-
cal work.

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EN 1. Safety instructions
○All components used must be designed
for:
- The maximum operating pressure
- The maximum/minimum ambient tem-
perature
-The lubricant to be delivered
-The required ATEX zone
-The operating and ambient conditions
at the place of use.
○No parts may be subjected to torsion,
shear, or bending.
○Check parts for contamination before use
and clean if necessary.
○Lubrication lines should be filled with lu-
bricant prior to assembly. This simplifies
subsequent venting of the system.
○Adhere to the specified torques. Use
a calibrated torque wrench when
tightening.
○Establish the electrical connection only in
accordance with the valid circuit diagram
and in observance of the relevant regula-
tions and the local electrical operating
conditions.
○Do not touch cables or electrical compo-
nents with wet or moist hands.
○Fuses must not be bridged. Always re-
place defective fuses with fuses of the
same type.
○Ensure proper grounding of the product.
○Drill required holes only on non-critical,
non-load-bearing parts. Use existing
boreholes. Do not damage lines or cables
when drilling.
○
Observe any possible wearing spots. Pro-
tect components appropriately.
○Use suitable hoisting equipment when
working with heavy parts.
○Avoid mixing up/incorrectly assembling
disassembled parts. Label parts.

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1. Safety instructions
1.19 Initial commissioning, daily startup
Ensure that:
○All safety mechanisms are fully present
and functional.
○All connections are properly connected.
○All parts are correctly installed.
○All warning labels on the product are fully
present, visible, and undamaged.
○Illegible or missing warning labels are
immediately replaced.
1.20 Cleaning
○There is a fire hazard from the use of
flammable cleaning agents. Use only
non-flammable cleaning agents that are
suitable for the intended purpose.
○Do not use corrosive cleaning agents.
○Thoroughly remove residue of cleaning
agents on the product.
○Do not use stream-jet equipment or
high-pressure cleaners. This may dam-
age electrical components.
○Observe the IP protection class.
○Cleaning work must not be performed on
conducting components.
○Mark wet areas accordingly.

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1.21 Special safety instructions regarding explosion protection
○Inspect the product at regular intervals
for damage that may present a risk of
ignition.
○The lubricant’s ignition temperature
has to be at least 50 kelvin above the
maximum surface temperature of the
components.
○Use only tools and clothing approved for
use in potentially explosive atmospheres
(ESD).
○Transport/assembly/repairs and work on
electrical components may be performed
only if it is ensured that there is no explo-
sive atmosphere present.
○Repairs or modifications to explosion-
proof machinery may be performed only
by the manufacturer or a workshop rec-
ognized by a notified body and accepted
by the manufacturer. If the work is not
performed by the manufacturer itself, the
○Always behave so as to avoid explosion
hazards.
○A written work authorization from the
operator is required prior to initiating
work in potentially explosive atmo-
spheres. Unauthorized persons must be
kept away.
○There must be no evidence that parts of
the explosion protection are missing or
non-functional. If this is not excluded,
switch off the machine and immediately
notify the supervisor.
○Explosion protection measures must
never be deactivated, changed, or
bypassed.
○The introduction of ignition sources such
as sparks, open flames, and hot surfaces
into potentially explosive atmospheres is
prohibited.
repair must be accepted and approved
in writing by a recognized expert. The
repair is marked by a repair sign on the
machine containing the following infor-
mation:
- Date
- Executing company
- Type of repair
- If applicable, mark by expert
○Shipping damage may lead to the loss of
explosion protection. If there is apparent
shipping damage, do not install or put
into operation the product.
○All parts of the grounding concept must
be properly present and connected with
the main machine.
○If lifting eyes are removed after installa-
tion, seal the threaded holes according to
the protection class.
○Handle materials in such a way that no
sparks may arise from tilting, dropping,

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1. Safety instructions
slipping, rubbing, or striking. If necessary,
cover materials by appropriate means.
○Never disconnect plug-in connections
under electrical voltage. Secure plug-in
connections against disconnection by
hand using the provided locking clips.
○Fill level monitoring must be provided for
○The operator must ensure high-reliability
fill level monitoring
○The operator must critically examine
whether operation without an empty
signal results in a new hazard potential
(e.g., due to heating of bearings on the
machine in the range of the ignition
temperature). If this cannot be reliably
excluded, an empty signal must be pro-
vided or appropriate organizational mea-
sures taken to monitor the temperature
of the bearings.
○Avoid / immediately remove any accu-
mulated dust. Accumulated dust has a
thermal insulating effect and promotes
the formation of a potentially explosive
atmosphere when agitated/swirled.
○The product must be integrated into the
operator’s lightning protection scheme.
○All parts must be inspected for corro-
sion on a regular basis. Replace affected
parts.
○Junction boxes must be securely closed
and the cable glands properly sealed.
○Any additional electrical monitoring
equipment must be securely connected
and correctly configured.
○Depending on the operating conditions,
check the product for damage that may
present a risk of ignition and check for
proper function. An inspection must be
conducted at least every 12 months.
○The ignition temperature of the sur-
rounding potentially explosive gases and
vapors must be greater than 125% of the
maximum surface temperature.
○The minimum ignition temperature and
the glow temperature and the surround-
ing potentially explosive dusts must be
greater than 150% of the maximum sur-
face temperature.

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EN 1. Safety instructions
1.22 Nullification of ATEX approval
The ATEX approval is nullified by:
○Improper usage
○Unauthorized alterations
○Use of non-original SKF spare/replace-
ment components
○Failure to comply with this manual and
referenced documents
○Use of non-specified equipment
○Failure to observe the prescribed repair
and maintenance intervals
○Operation with a damaged, missing, or
improperly performed subsequent finish
that does not meet the requirements of
the standards applicable to ATEX.
1.23 Operation in potentially explosive
atmospheres
Operation is only permitted in compliance
with:
○All information within this manual and
the information within the referenced
documents
○All laws and regulations that the operator
must observe
○The information on explosion protection
according to Directive 1999/92/EC
(ATEX 137)
○The ATEX approval
1.24 Explosion protection marking
The explosion protection marking is located
on the Declaration of Conformity and on the
rating plate.
1.25 Obligations of the operator
1.25.1 Identification of hazards
The operator must identify all hazards
resulting from integration into the main
machine as well as the hazards at the ma-
chine’s place of installation. The operator
must take necessary measures for safety
and health protection.