SKF DU1-GKS EEX User manual

951-181-015-EN
Version 03
2020/11/16
EN
Operating Instructions
following ATEX directive 2014/34/EU
Pressure-controlled change-over device
DU1-GKS EEX

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951-181-015
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EN
EU Declaration of conformity following ATEX directive 2014/34/EU, annex X
The manufacturer, SKF Lubrication Systems Germany GmbH, Walldorf Facilities, Heinrich-Hertz-Str. 2-8, DE - 69190 Walldorf hereby declares under sole re-
sponsibility that the electrical equipment
Designation: Pressure-controlled change-over device
Types: DU1-GKS EEX
Part numbers: 617-xxxxx-x
Year of construction: See type identification plate
complies with all relevant European Union harmonisation legislation at the time when first being launched in the market.
The technical documentation was prepared following:
○ATEX directive 2014/34/EU annex VIII (2) was drawn up and stored at the named conformity assessment body (CE0123)
Furthermore, the following directives and harmonized standards were applied in the respective applicable areas:
2011/65/EU RoHS II
Standard
EN ISO 80079-36:2016 EN 1127-1:2011
EN ISO 80079-37:2016 EN 50581:2012
The machinery must not be put into service until the final machinery into which it is to be incorporated has been declared in conformity with the previsions of
ATEX directive 2014/34/EU and any other applicable directives.
Walldorf, 2019/08/01
Jürgen Kreutzkämper
Manager R&D Germany
Stefan Schürmann
Manager PD Germany South

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Legal notice
Training courses
In order to provide a maximum of safety and
economic viability, SKF carries out detailed
training courses. It is recommended that the
training courses are attended. For more in-
formation please contact the respective SKF
Service address.
Copyright
© Copyright SKF
All rights reserved.
Warranty
The instructions do not contain any informa-
tion on the warranty. This can be found in
our general terms and conditions.
Disclaimer
The manufacturer shall not be held respon-
sible for damages caused by:
○non appropriate use
faulty assembly, operation, setting, main-
tenance, repair, negligence or accidents
○Use of inappropriate lubricants
○Improper or late response to
malfunctions
○Unauthorized modifications of the
product
○the use of non-original
SKF spare parts
Liability for loss or damage resulting from
the use of our products is limited to the
maximum purchase price. Liability for
consequential damages of whatever kind is
excluded.
Legal notice
Manufacturer
SKF Lubrication Systems Germany GmbH
e-mail: [e-mail]
skf.com/lubrication
Manufacturer's facilities
Head Office
Walldorf Facilities
Heinrich-Hertz-Str. 2-8
69190 Walldorf
Germany
Phone [phone]
Fax: [phone]
Berlin Facilities
Motzener Straße 35/37
12277 Berlin
Germany
Phone [phone]
Fax [phone]
www.skf.com/lubrication

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951-181-015
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EN Table of contents
Table of contents
EU Declaration of conformity following ATEX directive 2014/34/EU ..........2
Legal notice .................................................................................................3
Explanation of symbols, signs and abbreviations........................................6
1. Safety instructions.........................................................................8
1.1 General safety instructions....................................................................8
1.2 General behaviour when handling the product...................................8
1.3 Intended use............................................................................................ 9
1.4 Foreseeable misuse................................................................................9
1.5 Painting of plastic parts.......................................................................... 9
1.6 Modifications of the product................................................................10
1.7 Prohibition of certain activities............................................................10
1.8 Inspections prior to delivery ................................................................10
1.9 Other applicable documents................................................................10
1.10 Notes related to the type identification plate.....................................11
1.11 Notes related to the CE marking .........................................................11
1.12 Persons authorized to operate the pump ..........................................12
1.12.1 Operator.................................................................................................12
1.12.2 Specialist in mechanics ........................................................................12
1.12.3 Specialist in electrics ............................................................................12
1.12.4 Specialist for maintenance and repairs in potentially
explosive atmospheres.........................................................................12
1.13 Briefing of external technicians...........................................................12
1.15 Transport, installation, maintenance, malfunctions, repair,
shutdown, disposal ...............................................................................13
1.17 Cleaning .................................................................................................14
1.16 Initial commissioning, daily start-up ..................................................14
1.18 Special safety instructions regarding explosion protection .............15
1.19 Expiry of the ATEX approval.................................................................16
1.20 Operation in explosion-protected areas.............................................16
1.21 Explosion protection marking..............................................................16
1.22 Residual risks ........................................................................................17
1.23 Residual risks ATEX...............................................................................18
2. Lubricants................................................................................... 20
2.1 General information .............................................................................20
2.2 Selection of lubricants..........................................................................20
2.3 Material compatibility...........................................................................20
2.4 Temperature characteristics................................................................20
2.5 Ageing of lubricants..............................................................................21
3. Overview, functional description ................................................ 22
4. Technical data ............................................................................. 25
4.1 Technical data of the DU1 EEX............................................................25
4.2 Position switch ......................................................................................26
4.3 Tightening torques ...............................................................................27
5. Delivery, returns, and storage .................................................... 28
5.1 Delivery..................................................................................................28
5.2 Returns ..................................................................................................28
5.3 Storage...................................................................................................28

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Table of contents
6. Installation.................................................................................. 29
6.1 General information .............................................................................29
6.2 Place of installation...............................................................................29
6.3 Minimum assembly dimensions .........................................................30
6.3.1 Installation bores ..................................................................................31
6.4 Lubrication line connection .................................................................32
6.5 Adjusting the change-over pressure..................................................33
6.5.1 Increase the change-over pressure....................................................33
6.5.2 Reduce the change-over pressure......................................................33
6.6 Electrical connection of the position switch.......................................34
7. Initial start-up ............................................................................ 35
7.1 Inspections prior to initial start-up.....................................................35
7.2 Inspections during initial start-up ......................................................35
8. Operation.................................................................................... 36
8.1 Activating the DU1 EEX........................................................................36
9. Cleaning ...................................................................................... 37
9.1 Cleaning agents.....................................................................................37
9.2 Exterior cleaning ...................................................................................37
9.3 Interior cleaning....................................................................................37
10. Maintenance ............................................................................... 38
11. Troubleshooting.......................................................................... 39
12. Repairs........................................................................................ 40
12.1 Specialist for maintenance and repairs in potentially
explosive atmospheres.........................................................................40
13. Shutdown and disposal............................................................... 41
13.1 Temporary shutdown ...........................................................................41
13.2 Final shutdown and disassembly ........................................................41
13.3 Disposal..................................................................................................41
14. Spare parts ................................................................................. 42
14.1 Position switch ......................................................................................42
Declaration of conformity of the position switch...................................... 43

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951-181-015
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EN Explanation of symbols, signs and abbreviations
Explanation of symbols, signs and abbreviations
General warning Dangerous electrical voltage Risk of falling Hot surfaces
Unintentional intake Crushing hazard Pressure injection Suspended load
Electrostatically sensitive
components Risk of explosion Explosion-protected component
Wear personal protective
equipment (goggles)
Wear personal protective
equipment (face shield)
Wear personal protective
equipment (gloves)
Wear personal protective
equipment (protective clothes)
Wear personal protective
equipment (safety shoes)
Disconnect product from
mains General obligation
Keep unauthorized persons
away Protective earth Safety extra-low voltage (SELV) Safe galvanic isolation (SELV)
CE marking Disposal, recycling Disposal of waste electrical
and electronic equipment
Warning level Consequence Probability Symbol Meaning
DANGER Death, serious
injury imminent Chronological guidelines
WARNING Death, serious
injury possible Lists
CAUTION Minor
injury possible Refers to other facts, causes, or consequences
NOTICE Property damage possible
The following abbreviations may be used within these instructions. Symbols within safety notes mark the kind and source of the hazard.

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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
etc. et cetera h hour in. inch
poss. possibly s second psi pounds per square inch
if appl. if applicable d day sq.in. square inch
a.a.r. as a rule Nm Newtonmeter cu. in. cubic inch
incl. including ml millilitre mph miles per hour
min. minimum ml/d millilitre per day rpm revolutions per minute
max. maximum cc cubic centimetre gal. gallon
min. minute mm millimetre lb. pound
etc. et cetera l litre hp horse power
e.g. for example dB (A) sound pressure level kp kilopound
kW kilowatt > greater than fpsec feet per second
U Voltage < less than conversion factors
R resistance ± plus/minus Length 1 mm = 0.03937 in.
I current Ø diametre Area 1 cm² = 0.155 sq.in
V volt kg kilogram Volume 1 ml = 0.0352 fl.oz.
Wwatt rh relative humidity 1 l = 2.11416 pints (US)
AC alternating current ≈about Mass 1 kg = 2.205 lbs
DC direct current = equal to 1 g = 0.03527 oz.
A ampere % per cent Density 1 kg/cc = 8.3454 lb./gal(US)
Ah ampere hour ‰ per mille 1 kg/cc = 0.03613 lb./cu.in.
Hz frequency [Hertz] ≥greater than Force 1 N = 0.10197 kp
nc normally closed ≤less than Pressure 1 bar = 14.5 psi
no normally open contact mm2square millimetre Temperature °C = (°F-32) x 5/9
OR logical OR rpm-1 revolutions per minute Output 1 kW = 1.34109 hp
&logical AND 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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EN 1. Safety instructions
1. Safety instructions
1.1 General safety instructions
○The owner must ensure that safety infor-
mation has been read by any persons en-
trusted with works on the product or by
those persons who supervise or instruct
the before-mentioned group of persons.
In addition, the owner must also ensure
that the relevant personnel are fully fa-
miliar with and have understood the con-
tents of the Instructions. It is prohibited to
commission or operate the product prior
to reading the Instructions.
○These Instructions must be kept for fur-
ther use.
○The described products were manufac-
tured according to the state of the art.
Risks may, however, arise from a usage
not according to the intended purpose
and may result in harm to persons or
damage to material assets.
○Any malfunctions which may affect safety
must be remedied immediately. In addi-
tion to these Instructions, general statu-
tory regulations for accident prevention
and environmental protection must be
observed.
1.2 General behaviour when handling the
product
○The product may be used only in aware-
ness of the potential dangers, in proper
technical condition, and according to the
information in these instructions.
○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.
○Precautionary operational measures and
instructions for the respective work must
be observed.
○Responsibilities for different activities
must be clearly defined and observed.
Uncertainty seriously endangers safety.
○Safety-related protective and emergency
devices must not be removed, modified
or affected otherwise in their function
and are to be checked at regular intervals
for completeness and function.
○If protective and safety equipment has to
be dismantled, it must be reassembled
immediately after finishing the work, and
then checked for correct function.
○Remedy occurring faults in the frame of
responsibilities. Immediately inform your
superior in the case of faults beyond your
competence.
○Wear personal protective equipment.
○Never use parts of the centralized lu-
brication system or of the machine as
standing or climbing aids.

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1. Safety instructions
1.3 Intended use
Changing over of the main lines within a
centralized lubrication system following
the specifications, technical data and limits
stated in these Instructions:
Usage is allowed exclusively for professional
users in the frame of commercial and eco-
nomic activities.
1.4 Foreseeable misuse
Any usage differing from the one stated in
these Instructions is strictly prohibited. It is
expressly forbidden to be used:
○outside the indicated temperature range
○with non-specified means of operation
○with contaminated lubricants or lubri-
cants with air inclusions
○with lubricants the temperature of which
exceeds the maximum admissible ambi-
ent temperature
○without adequate pressure control valve
○in areas with aggressive or corrosive ma-
terials (e.g. high ozone pollution). These
may affect seals and painting.
○in areas with harmful radiation (e. g. ion-
ising radiation)
○to supply, transport, or store hazardous
substances and mixtures in accordance
with annex I part 2-5 of the CLP regula-
tion (EG 1272/2008) and marked with
GHS01 - GHS06 and GHS08 hazard
pictograms.
○to feed, forward, or store gases, liquefied
gases, dissolved gases, vapours, or fluids
whose vapour pressure exceeds normal
atmospheric pressure (1013 mbar) by
more than 0.5 bar at the maximum per-
missible operating temperature.
○to feed, forward, or store lubricants con-
taining volatile solvents
○in explosive gas and vapour atmos-
pheres, the ignition temperature of which
is smaller than 125 % of the maximum
surface temperature
○in explosive dust atmospheres, the mini-
mum ignition and glow temperature of
which is smaller than 150 % of the maxi-
mum surface temperature
○In a different, more critical potentially
explosive atmosphere than stated on
the type identification plate of the pump
used.
○with damaged or lacking ATEX paint-
ing or ATEX painting done wrongly later
on. The painting must comply with the
standards valid for ATEX.
○with change-over devices delivered with-
out painting
1.5 Painting of plastic parts
Painting of any plastic parts or seals of the
described products is expressly prohibited.
Remove or tape plastic parts completely
before painting the superior machine

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EN 1. Safety instructions
1.6 Modications of the product
Unauthorized conversions or modifica-
tions may result in unforeseeable impacts
on safety. Therefore, any unauthorized
conversions or modifications are expressly
prohibited.
1.7 Prohibition of certain activities
Due to potential sources of faults that may
not be visible or due to legal regulations
the following activities may be carried out
by manufacturer specialists or authorized
persons only:
○Repairs or changes to the drive
○Replacement of or changes on the
pistons.
1.8 Inspections prior to delivery
The following inspections were carried out
prior to delivery:
○Safety and functional tests
○Electrical inspections following DIN EN
60204-1:2007 / VDE 0113-1:2007.
○In case of explosion-protected products:
Inspections following the requirements of
the ATEX Directive.
1.9 Other applicable documents
In addition to these instructions, the fol-
lowing documents must be observed by the
respective target group:
○Operational instructions and approval
rules
○Safety data sheet (SDS) of the lubricant
or material used
Where appropriate:
○Project planning documents
○Any documents of other components
required to set up the centralized lubrica-
tion system
○Operator's explosion protection
document

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1. Safety instructions
1.10 Notes related to the type identica-
tion plate
The type identification plate states im-
portant characteristics such as type des-
ignation, order number, and regulatory
characteristics.
To ensure that the loss of data due to an
illegible type identification plate is avoided,
the characteristics should be entered in the
Instructions.
Model: _______________________________
P. No. ________________________________
S. No. ________________________________
Year of construction
____________________________
SKF Lubrication Systems Germany GmbH
Model:
P. No.:
S. No.:
xxx -xxx-xxx-xxx-xxx
xxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxx
Made in Germany
U & P: see motor type identification plate
KW/JJFactory address
-xx °C ≤ Ta ≤ +xx °C
IIxG Ex h IIx Tx Gb
IIxD Ex h IIIx Txxx°C Db
1.11 Notes related to the CE marking
CE marking is effected following the re-
quirements of the applied directives:
○2014/34/EU
Directive relating to equipment and
protective systems for use in explosive
atmospheres (ATEX)
○2011/65/EU
(RoHS II) Directive on the restriction of
the use of certain hazardous substances
in electrical and electronic equipment
Reference on Low Voltage Directive
2014/35/EU
The protective regulations of Low Voltage
Directive 2014/35/EU are fulfilled according
to annex II (1.2.7) of ATEX Directive
2014/34/EU.
Reference on Pressure Equipment Directive
2014/68/EU
Because of its performance data the prod-
uct does not achieve the limit values de-
fined in Article 4 (1) (a) (ii) and is therefore
excluded from the scope of application of
Pressure Equipment Directive 2014/68/EU
following Article 1 (2) (f).

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EN 1. Safety instructions
1.12 Persons authorized to operate the
pump
1.12.1 Operator
A person who is qualified by training, know-
ledge and experience to carry out the func-
tions and activities related to normal opera-
tion. This includes avoiding possible hazards
that may arise during operation.
1.12.2 Specialist in mechanics
Person with appropriate professional edu-
cation, knowledge and experience to detect
and avoid the hazards that may arise during
transport, installation, start-up, operation,
maintenance, repair and disassembly.
1.12.3 Specialist in electrics
Person with appropriate professional edu-
cation, knowledge and experience to detect
and avoid the hazards that may arise from
electricity.
1.12.4 Specialist for maintenance and
repairs in potentially explosive
atmospheres
A person who is qualified by training, know-
ledge and experience to identify and assess
possible risks and hazards during work
on the machine or partial components in
potentially explosive areas and to initiate
suitable measures to prevent such risks.
The specialist has knowledge of the differ-
ent ignition protection types, installation
procedures and zone divisions. He is famil-
iar with the rules and regulations relevant
for his activities and explosion protection, in
particular with ATEX directives 2014/34/EU
and 1999/92/EC.
1.13 Brieng of external technicians
Prior to commencing the activities, external
technicians must be informed by the opera-
tor of the company safety provisions, the
applicable accident prevention regulations
to be maintained, and the functions of the
superordinate machine and its protective
devices.
1.14 Provision of personal protective
equipment
The operator must provide suitable person-
al protective equipment for the respective
location of operation and the purpose of
operation. For work in potentially explosive
atmospheres this also includes ESD cloth-
ing and ESD tools.

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1. Safety instructions
○Ensure proper connection of the protec-
tive conductor.
○Undertake drilling at non-critical, non-
load bearing parts only. Use any available
boreholes. Do not damage lines and ca-
bles when drilling.
○Observe possible abrasion points. Protect
the parts accordingly.
○All components used must be designed
for:
- maximum operating pressure
- maximum / minimum ambient tem-
perature
- the lubricant to be supplied
- the ATEX zone required
- the operating / ambient conditions at
the place of usage
○Assemble the product only outside of the
operating range of moving parts, at an
adequate distance from sources of heat
or cold. Other units of the machine or ve-
hicle must not be damaged or impaired in
their function by the installation.
○Dry or cover wet, slippery surfaces
accordingly.
○Cover hot or cold surfaces accordingly.
○Work on electrical components must be
carried out by electrical specialists only.
Observe any waiting periods for dis-
charging, if necessary. Carry out works
on electrical components only while the
system is depressurized and use voltage
isolated tools suitable for electrical works
only.
○Carry out electrical connections only ac-
cording to the information in the valid
wiring diagram and taking the relevant
regulations and the local connection con-
ditions into account.
○Do not touch cables or electrical compo-
nents with wet or damp hands.
○Ensure proper grounding of the product.
1.15 Transport, installation, maintenance,
malfunctions, repair, shutdown,
disposal
○All relevant persons must be informed
of the activity prior to starting any work.
Observe the precautionary operational
measures and work instructions.
○Carry out transport using suitable trans-
port and hoisting equipment on suitable
ways only.
○Maintenance and repair work can be
subject to restrictions in low or high tem-
peratures (e.g. changed flow properties of
the lubricant).Therefore, where possible,
try to carry out maintenance and repair
work at room temperature.
○Prior to performing work, the product
and the machine, into which the product
will be integrated, must be depressur-
ized and secured against unauthorized
activation.
○Ensure through suitable measures that
movable or detached parts are immobi-
lized during the work and that no limbs
can be caught in between by inadvertent
movements.

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EN 1. Safety instructions
1.16 Initial commissioning, daily start-up
Ensure that:
○All safety devices are completely available
and functional
○All connections are correctly connected
○All parts are correctly installed
○No parts of the centralized lubrication
system may be subjected to torsion,
shear, or bending.
○Check all parts prior to their usage for
contamination and clean, if necessary.
○Lubricant lines should be primed with
lubricant prior to installation. This makes
the subsequent ventilation of the system
easier.
○Observe the specified tightening torques.
When tightening, use a calibrated torque
wrench.
○When working with heavy parts use suit-
able lifting tools.
○Avoid mixing up or wrong assembly
of dismantled parts. Mark these parts
accordingly.
1.17 Cleaning
○Risk of fire and explosion when using
inflammable cleaning agents Only use
non-flammable cleaning agents suitable
for the purpose.
○Do not use aggressive cleaning agents.
○Thoroughly remove residues of cleaning
agents from the product.
○Do not use steam jet and high pressure
cleaners. Electrical components may be
damaged. Observe the IP type of protec-
tion of the pump.
○Cleaning work may not be carried out on
energized components.
○Mark damp areas accordingly.

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1. Safety instructions
1.18 Special safety instructions
regarding explosion protection
○Always behave so that explosion hazards
are avoided.
○A written work approval from the opera-
tor is required prior to working in poten-
tially explosive areas. Keep unauthorized
persons away
○There must be no indications that parts
of the explosion protection are missing or
are not working. Should such indications
become apparent, switch off the machine
and inform a superior without delay.
○Measures for explosion protection
must never be deactivated, modified or
bypassed.
○It is forbidden to bring in ignition sources
such as sparks, open flames and hot sur-
faces in potentially explosive areas.
○Check the machine at regular intervals for
damage which may represent an ignition
risk.
○The ignition temperature of the lubricant
must lie at least 50 K over the maximum
admissible surface temperature of the
components.
○The ignition temperature of the ambient
explosive gas and vapour atmospheres
must be greater than 125 % of the maxi-
mum surface temperature.
○The minimum ignition and glow tem-
perature of the ambient explosive dust
atmospheres must be greater than 150 %
of the maximum surface temperature
○The limits of use related to explosion pro-
tection are clearly defined by the device
categories, gas and dust groups as well
as temperature classes stated in the ex-
plosion protection marking. In any case,
also if dust group IIIC is specified, light-
metal dusts as explosive ambient media
are prohibited
○Only use tools and clothing which are
permitted for use in potentially explosive
areas (ESD).
○Transport, installation, repairs and work
on electrical components may only be
carried out, if it has been ensured that the
atmosphere is not potentially explosive.
○Repairs or modifications to machines
which are protected against explosions
may be carried out only by the manufac-
turer or by a workshop recognized by a
named institution and confirmed in writ-
ing. If the work is not carried out by the
manufacturer, the repairs must be ap-
proved by a named expert and confirmed
in writing. The repairs are to be marked
by a repair sign on the machine, stating
the following:
- Date
- Executing company
- Type of repair
- If applicable, expert's code
○Transport damages can result in the loss
of the explosion protection. If transport
damages can be seen, do not assemble
the product nor put it into operation.
○All parts of the earthing concept must be
correctly available and connected with the
superordinate machine.

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EN 1. Safety instructions
○If transport lugs are dismantled after
set-up, the threaded bores must be per-
manently sealed in accordance with the
protection class.
○Handle the materials so that no sparks
generated by tilting, falling, sliding, rub-
bing, impacting, etc. If needed, cover
materials with suitable means.
○Never disconnect possibly existing plug-
in connections when energized. Secure
plug-in connections against inadvertent
manual disconnection with the safety
clips.
○The operator must check thoroughly
whether an operation without low-level
signal leads to a new hazard potential
(e.g. through heat-up of bearing points
on the machine in the area of ignition
temperature). If this cannot be ascer-
tained, provide a low-level signal or suit-
able organisational measures for moni-
toring of the bearing point temperature.
○Avoid dust accumulation and remove
dust immediately. Dust accumulations
have a thermally insulating effect and, if
whirled up, generate the formation of a
potentially explosive atmosphere.
○The product must be integrated in the
operator's lightning protection concept.
○All parts are to be checked regularly for
corrosion. Replace the affected parts.
○Terminal boxes must be firmly closed and
the cable breakthroughs correctly sealed.
○Additional electrical monitoring devices
must be firmly connected and correctly
adjusted.
1.19 Expiry of the ATEX approval
The ATEX certificate for this product expires
through:
○Inappropriate usage
○Unauthorized modifications
○Use of non-original SKF spare parts
○non-observance of these instructions
and other applicable documents.
○Use of non-specified lubricants
○Non-observance of the specified mainte-
nance and repair intervals
○Operation with damaged or lacking ATEX
painting or ATEX painting done wrongly
later on and not complying with the
standards applicable for ATEX
○Operation with lacking painting
1.20 Operation in explosion-protected
areas
Operation is permitted only, if in compliance
with:
○All information given in these instructions
or stated in the referenced documents.
○All laws and regulations to be complied
with by the user.
○Information on explosion protection
according to directive 1999/92/EC
(ATEX 137).
○ATEX approval.
1.21 Explosion protection marking
The explosion protection marking is found
in chapter "Technical data" and on the type
identification plate.

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1. Safety instructions
1.22 Residual risks
Residual risk Possible in life cycle Prevention/ remedy
Personal injury/ material damage due to
falling of raised parts A B C G H K Keep unauthorized persons away. No people may remain under suspended loads. Lift parts with adequate lifting devices.
Personal injury/ material damage due to
tilting or falling of the product because of
non-observance of the stated tightening
torques
B C G
Observe the specified tightening torques. Fix the product only to components
with sufficient load capacity. If no tightening torques are stated, apply tightening
torques according to the screw size characteristics for 8.8 screws.
Personal injury/ material damage due to
electric shock in case of damage to the
connection cable
B C D E F G H
Check the connection cable with regard to damages before the first usage and
then at regular intervals. Do not mount cable to moving parts or friction points. If
this cannot be avoided, use spring coils respectively protective conduits.
Personal injury/ damage to material due
to spilled or leaked lubricant B C D F G H K
Be careful when connecting or disconnecting lubricant feed lines. Always use
suitable hydraulic screw connections and lubrication lines for the stated pres-
sures. Do not mount lubrication lines to moving parts or friction points. If this
cannot be avoided, use spring coils respectively protective conduits.
Life phases:
A = transport, B = installation, C = initial start-up, D = operation, E = cleaning, F = maintenance, G = fault, repair, H = shutdown, K = disposal

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EN 1. Safety instructions
1.23 Residual risks ATEX
Residual risk Possible in life cycle Prevention/ remedy
Usage in a potentially explosive atmos-
phere without testing the equipoten-
tial bonding with regard to electrical
continuity
C D G
Check the equipotential bonding with regard to electrical continuity before the
initial start-up, after each repair and additionally at regular intervals to be deter-
mined by the operator.
Use with damaged, wrong, or lacking
ATEX painting. C D E F G Before the first start-up and later at regular intervals check the painting and let it be renewed by authorized personnel, where appropriate.
Heat-up of non-lubricated lubrication
points in the area of ignition temperature
through undetected faults within the
centralized lubrication system.
C D G
The operator must check critically whether an operation without corresponding
detection options might lead to a new risk potential (e.g. through heat-up of non-
lubricated bearing points on the machine up to the ignition temperature range). If
this cannot be excluded with certainty, provide adequate countermeasures.
Heat-up of components in the area
of ignition temperature or formation
of a potentially explosive atmosphere
through whirling up of dust.
C D E F G Avoid dust accumulation and remove dust immediately. Select a location of instal-
lation with as little dust as possible.
Life cycle: A = transport, B = installation, C = initial start-up, D = operation, E = cleaning, F = maintenance, G = fault, repair,
H = shutdown, K = disposal

1
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EN
1. Safety instructions
Residual risk Possible in life cycle Prevention/ remedy
Generation of electrostatic charges and sparks
through dropping parts. C D E F G Secure parts against falling. Where appropriate, cover parts in order to avoid the formation of sparks.
Bringing catalytic, unstable or pyrophoric sub-
stances into a potentially explosive area. C D E F G Ensure that none of these substances gets into the potentially explosive area. Have all substances approved by the operator first.
Use of isolating amplifiers to operate the ca-
pacitive sensor in potentially explosive areas. C D G Mount isolating amplifiers outside potentially explosive areas only.
Using a lubricant not suitable for low tempera-
tures. In case of low temperatures too high
lubricant viscosity may result in a functional
failure of the pump.
C D Only use lubricants suitable for the respective actual operating
temperature.
Life cycle: A = transport, B = installation, C = initial start-up, D = operation, E = cleaning, F = maintenance, G = fault, repair,
H = shutdown, K = disposal

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EN 2. Lubricants
2. Lubricants
2.1 General information
Lubricants are used specifically for certain
application purposes. In order to fulfil their
tasks, lubricants must fulfil various require-
ments to varying extents.
The most important requirements for lubri-
cants are:
○Reduction of abrasion and wear
○Corrosion protection
○Noise minimisation
○protection against contamination or
penetration of foreign objects
○Cooling (primarily with oils)
○longevity (physical/ chemical stability)
○economic and ecological aspects
2.2 Selection of lubricants
SKF considers lubricants to be an element
of system design. A suitable lubricant is se-
lected already when designing the machine
and forms the basis for the planning of a
centralized lubrication system.
The selection is made by the manufacturer
or operator of the machine, preferably to-
gether with the lubricant supplier based on
the requirement profile defined.
Should you have little or no experience with
the selection of lubricants for centralized
lubrication systems, please contact SKF.
If required we will be glad to support cus-
tomers to select suitable components for
feeding the selected lubricant and to plan
and design their centralized lubrication
system.
You will avoid possible downtimes through
damage to your machine or system or
damage to the centralized lubrication
system.
2.3 Material compatibility
Lubricants must generally be compatible
with the following materials:
○steel, grey iron, brass, copper, aluminium
○NBR, FPM, ABS, PA, PU
2.4 Temperature characteristics
The lubricant used must be suitable for
the specific operating temperature of the
product.The viscosity required for proper
operation of the product must be adhered
to and must not be exceeded in case of low
temperatures nor fall below specification in
case of high temperatures. Specified vis-
cosities, see chapter Technical data.
The ignition temperature of the
lubricant must lie at least 50 K
over the maximum admissible
surface temperature of the
components.