SKF 143 Series User manual

Operating instructions
ATEX Directive 2014/34/EU
ATEX-compliant gerotor pump units
of series 143
for SKF CircOil centralized lubrication systems
Version 03

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951-180-074-EN Version 03, last updated 2019 / 07
EU Declaration of Conformity
Jürgen Kreutzkämper
Manager R&D Germany
EU Declaration of Conformity pursuant to ATEX Directive 2014/34/EU, Annex X
The manufacturer, SKF Lubrication Systems Germany GmbH, Berlin Plant, Motzener Straße 35/37, DE -12277 Berlin, hereby declares
conformity of the device
Designation: Gerotor pump units
Type: 143
Item number: 143-2XFXXXX-XE+XXX
Year of manufacture: See rating plate
Explosion protection marking: II 2G Ex h IIC T4 Gb
II 2D Ex h IIIC T120°C Db
with all essential safety and health requirements of ATEX Directive 2014/34/EU as well as the basic safety and health requirements protec-
tion 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 at a 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 Standardiza-
tion is the authorized representative for the technical documentation. See the manufacturer information for the address.
Furthermore, the following Directives and (harmonized) standards were applied in the applicable areas:
2011/65/EU RoHS II Directive
Electromagnetic compatibility
6/28/EC Electromagnetic compatibility | Automotive
Standard Edition Standard Edition Standard Edition
EN ISO 12100 2010 EN 60204-1 2006 EN 1127-1 2011
Berichtigung 2013 Berichtigung 2010 EN ISO 80079-36 2016
EN 809 +A1/AC 2010 EN 50581 2012 EN ISO 80079-37 2016
EN 60034-1 2010
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
Machinery Directive 2006/42/EC and all other applicable Directives.
Berlin, July 15, 2019
Richard Lindemann
Manager Sustain Engineering Berlin

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Masthead
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
and Machinery Directive 2006/42/EC.
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, negligence, or accidents
○Improper reaction to malfunctions
○Unauthorized modifications to the
product
○Intentional or gross negligence
○Use of non-original
SKF spare/replacement components
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]
Hockenheim Plant
2. Industriestraße 4
68766 Hockenheim
Germany
Tel. [phone]
Fax [phone]
E-mail: [e-mail]
www.skf.com/lubrication

EN
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Table of contents
ATEX-compliant gerotor pump units
of series 143 1
1. Safety instructions 7
1.1 Special safety instructions regarding
explosion protection 7
1.2 Operation in potentially explosive atmospheres 8
1.3 Explosion protection marking 8
1.4 Explosion protection measures 8
1.5 Nullification of ATEX approval 8
1.6 Prohibition of certain activities 8
1.7 Intended use 9
1.8 Foreseeable misuse 9
1.9 Modifications to the product 9
1.10 Persons authorized to use the product 9
1.11 General safety instructions 9
1.12 General behavior when handling the product 10
1.13 Inspections prior to delivery 10
1.14 Emergency pump shut-down 10
1.15 Referenced documents 10
1.16 Transport, assembly, servicing, repair,
maintenance 10
1.17 Initial commissioning, daily startup 11
1.18 Cleaning 11
1.19 Identification of hazards 11
1.20 Provision of necessary information 11
1.21 Duty to provide instruction and training 11
1.25 Information on CE marking 12
1.22 Instruction of outside fitters 12
1.23 Verification of proper usage 12
1.24 Provision of personal protective gear 12
1.26 Existing residual risks 13
1.27 Warning labels on the product 15
2. Lubricants 16
2.1 General information 16
2.2 Selection of lubricants 16
2.3 Material compatibility 16
2.4 Aging of lubricants 16
2.5 Lubricants in potentially explosive
atmospheres 16
3. Overview, functional description 17
3.1 Assemblies 17
3.2 Product codes 17
3.3 Order example 143-21FD03E-RE+1GD 18
3.4 Functional description of gerotor pump units 18
3.5 Operation of the gerotor pump units 19
4. Technical data 20
4.1 Basic data 20
4.2 Oil lubrication pump units in types IM B34 and
IM B14 21
Delivery rates and characteristic curves 21
4.3 Operating viscosity, characteristics 20 mm2/s,
50 Hz 22
4.4 Operating viscosity, characteristics 140 mm2/s,
50 Hz 22
4.5 Operating viscosity, characteristics 750 mm2/s,
50 Hz 22
4.6 Operating viscosity, characteristics 1000 mm2/s,
50 Hz 22
4.7 Viscosity-temperature relationship of oils
with different rated viscosity 23
4.7.1 Viscosity range from 2.6 to 50 mm2/s 23
4.7.2 Viscosity range from 50 to 2000 mm2/s 23
5. Delivery, returns, and storage 24
5.1 Delivery 24
5.2 Returns 24
5.3 Storage until initial use 24
5.4 Special storage conditions for ATEX motors 24
5.5 Transporting the gerotor pump unit 24
5.5.1 Transporting the gerotor pump unit by forklift 25
5.5.2 Transporting a gerotor pump unit by crane 25
6. Assembly 26
6.1 General information on assembly of the gerotor
pump unit and the lubrication system 26
6.1.1 Operator 26
6.1.2 Specialist in maintenance/servicing in
potentially explosive atmospheres 26
6.1.3 Attachment 26
6.2 Minimum mounting dimensions 28
6.3 Setup and attachment 28
6.4 Assembly of gerotor pump unit in foot design,
type IM B34 29
6.5 Assembly of gerotor pump unit in flange design,
type IM B14 29
6.6 Assembly drawing 30
6.6.1 Foot design, type IM B34, assembly holes
and minimum mounting dimensions 30
6.6.2 Flange design, type IM B14, assembly holes
and minimum mounting dimensions 31
6.7 Electrical motor connection 32
6.7.1 Establishing grounding connection for motor 34
6.8 Lubrication line arrangement 34
6.9 Lubrication line connection 35
6.10 Note on the rating plate 35
Table of contents

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Table of contents
7. Commissioning, operation 36
7.1 Commissioning 36
7.1.1 Venting the pump unit 36
7.1.2 Inspections before initial commissioning 37
7.1.3 Enabling the gerotor pump unit 37
7.1.4 Inspections during initial commissioning 37
7.2 Operation 38
7.2.1 Filling the gerotor pump units 38
8. Shutdown and disposal 39
8.1 Temporary shutdown 39
8.2 Recommissioning after downtime 39
8.3 Permanent shutdown and disposal 39
8.4 Disposing of dismantled parts 39
9. Maintenance and cleaning 40
9.1 Maintenance instructions 40
9.2 Safety measures before maintenance work 40
9.3 Maintenance checklist 41
9.4 Cleaning 42
9.4.1 Cleaning agents 42
9.4.2 Exterior cleaning 42
9.4.3 Interior cleaning 42
10. Malfunctions, causes, and remedies 42
10.1 Prior to beginning troubleshooting 42
10.2 Safety measures before maintenance work 42
10.3 Commissioning, product, and system
malfunctions 43
11. Supplier documentation with Declarations
of Conformity 44
11.1 Supplier documentation 44
11.2 Declaration of Conformity for coupling 44
11.3 Declaration of Conformity for motor 45

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Explanation of symbols and signs
Symbols used
Symbol Meaning
General warning
Electrical component hazard, electric shock
hazard
Slipping hazard
Hazard from hot surfaces
Risk of being drawn into machinery
Hand injuries / crushing hazard
Pressure injection hazard
Wear personal safety equipment
(goggles)
Note
Environmentally sound disposal/
recycling
Environmentally sound disposal of
waste electrical and electronic equipment
You will find these symbols, which warn of
specific dangers to persons, material as-
sets, or the environment, next to all safety
instructions in these instructions.
Read the instructions thoroughly and follow
them. Please heed these instruc-
tions and proceed with special
care in such cases.
Warning level Consequence Probability
DANGER Death / serious injury Immediate
WARNING Serious injury Possible
CAUTION Minor injury Possible
IMPORTANT NOTE Property damage Possible
Information symbols within the text Symbol
Operating instructions for personnel. Operating instructions are pro-
vided in chronological order of the steps.
Indicates bullet list items
Refers to other facts, causes, or consequences
Provides additional information within procedures
Abbreviations and conversion factors
Language SI units US units
approx. approximately °C degrees Celsius °F degrees Fahrenheit
e.g. for example K Kelvin Oz. ounce
etc. et cetera N Newton fl. oz. Fluid ounce
i.e. that is h hour in. inch
incl. including s second psi pound per square inch
max. maximum d day sq.in. square inch
min. minimum Nm Newton meter cu. in. cubic inch
min minute ml milliliter mph miles per hour
usually usually ml /d milliliters per day rpm revolutions per minute
ccm cubic centimeter gal. Gallon
mm millimeter lb. pound
l liter hp horsepower
db (A) sound pressure level kp kilopound
> greater than fpsec feet per second
< less than
± plus minus
Ø diameter
kg kilogram Conversion factors
RH relative humidity Length 1 mm = 0.03937 in.
≈ approximately Area 1 cm² = 0.155 sq.in.
kW kilowatt = equal to Volume 1 ml = 0.0352 fl.oz.
U voltage % percent 1 l = 2.11416 pints (US)
R Resistance ‰ per mil (thousandth) Mass 1 kg = 2.205 lbs
I current intensity ≥ greater or equal 1 g = 0.03527 oz.
V volt ≤ less or equal Density 1 kg/cm³ = 8.3454 lb./gal(US)
Wwatt mm2square millimeter 1 kg/cm³ = 0.03613 lb./cu.in.
AC alternating current rpm Revolutions per minute Force 1 N = 0.10197 kp
DC direct current Pressure 1 bar = 14.5 psi
A ampere Temperature °C = (°F-32) x 5/9
Ah ampere hour Power 1 kW = 1.34109 hp
Hz Frequency (Hertz) Acceleration 1 m/s² = 3.28084 ft./s²
NC normally closed contact Speed 1 m/s = 3.28084 fpsec
NO normally open contact 1 m/s = 2.23694 mph

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1
1. Safety instructions
1. Safety instructions
Only gerotor pump units of series 143
tested and
approved by SKF in accordance with ATEX
Directive 2014/34/EU are permitted to be
used in potentially explosive atmospheres.
The relevant class of explosion protection is
indicated on the gerotor pump unit’s rating
plate.
1.1 Special safety instructions regarding
explosion protection
○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/gerotor pump unit
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.
○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 maxi-
mum permissible surface temperature.
○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 ex-
plosive 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
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/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 components of the product in
such a way that no sparks may arise
from tilting, dropping, slipping, rubbing,
or striking. If necessary, cover compo-
nents by appropriate means.
○Fill level monitoring with min. pre-warn-
ing and max. must be provided or appro-
priate organizational measures taken to
monitor the temperature of the bearings.
○Prevent/immediately remove 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.
○Terminal boxes must be securely closed
and the cable glands properly sealed.
○Any additional electrical monitoring
equipment must be securely connected
and correctly configured.
○The motor bearings must be replaced
once they reach their nominal service life
or they must be inspected to verify suit-
ability for further use. (see Chapter 9
as well as operating instructions from the
motor manufacturer).
o Electrical circuits such as electrical fill
level monitors must be established by an
intrinsically safe circuit, e.g., through the
installation of an ATEX-compliant isolat-
ing switch by the customer.
o Any components connected or flanged
to the ATEX gerotor pump unit must be
ATEX-compliant.
o The motor connection of the gerotor
pump unit is connected in accordance
with the enclosed instructions from the
ATEX motor manufacturer. These instruc-
tions are stored in the motor’s terminal
box.
o The customer must install adequate
overload protection (motor circuit break-
er) for the power consumption of the
gerotor pump motor.
o When installing the gerotor pump unit,
make sure that the setup location is flat
and low-vibration.
o To limit the maximum system pressure,
the customer must install a pressure
regulating valve immediately after the an-
nular gear.
o Only lines that are made of corrosion-
resistant material may be used. These
must also be grounded.
o The user must make sure through the
choice of the lubricant to be delivered
that no reactions capable of serving as an
ignition source will occur in conjunction
with the potentially explosive atmosphere
expected.

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1. Safety instructions
1.6 Prohibition of certain activities
The following activities must be performed
only by employees of the manufacturer
or authorized persons due to the poten-
tial sources of error (that are not appar-
ent to the operator) or due to statutory
requirements:
○Repairs, modifications to the pump, the
motor, or the coupling
1.5 Nullification of ATEX approval
The ATEX approval is nullified by:
○Improper usage
○Unauthorized alterations
○Use of non-original SKF spare/
replacement components
○Failure to comply with this manual and
referenced documents
○Use of non-specified equipment
○Failure to observe the prescribed repair
and maintenance intervals
○non-standard-compliant varnishing of
grounded metals or a conductive surface
1.4 Explosion protection measures
Based on a comprehensive assessment of
the work area, the operator ensures that the
equipment and all installation materials are
suitable for operation in potentially explosive
atmospheres and are assembled, installed,
and operated in such a way that they do not
cause an explosion.
If modifications, extensions, and/or conver-
sions are performed in potentially explosive
atmospheres, the operator shall take the
necessary measures to ensure that these
modifications, extensions, or conversions
fulfill the minimum explosion protection
requirements.
The operator
○documents the measures for explosion
protection.
○marks the potentially explosive areas.
○prepares written operating instructions.
○selects suitable employees.
○provides the employees with adequate
and appropriate instruction regarding
explosion protection.
○employs a release system for hazardous
activities and for those that may become
dangerous in interaction with other work.
○performs required tests and monitoring.
○ensures that only original spare parts are
used.
o The gerotor pump unit must undergo a
function and leak test at regular intervals.
The intervals are defined by the operator/
system manufacturer.
o Perform appropriate repairs in the event
of damage, leaks, or rust. Replace the
product if necessary.
o Read in full the operating instructions
included for the motor in the document
package accompanying the ATEX gerotor
pump unit. Follow and apply their in-
structions and content.
o The paint layer on the gerotor pump unit
must be less than
0.2 mm thick. This value must not be
exceeded under any circumstances.
1.2 Operation in potentially explosive
atmospheres
Operation of the gerotor pump unit is per-
mitted only in compliance with:
○All information within this manual and
the information within the referenced
documents
○All laws/regulations that the operator
must observe
○The information on explosion protection
according to Directive 1999/92/EC
(ATEX 137)
○The ATEX approval
1.3 Explosion protection marking
The explosion protection marking is located
on the Declaration of Conformity and on the
rating plate.

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1
1. Safety instructions
1.7 Intended use
ATEX gerotor pump units of SKF series 143
are for supplying centralized lubrication sys-
tems with lubricant and are intended for use
in centralized lubrication systems. They feed
mineral and synthetic oils that are compat-
ible with plastic and FKM (FPM) elastomers.
The permissible operating viscosity for the
oils is 20 to 1000 mm2/s at a permissible
pumped medium temperature of 0 to 60 °C.
The assembly instructions in Chapter 6
must be adhered to. The information in
Chapter 4, “Technical data,” must be fol-
lowed as well.
Only media approved for these gerotor
pump
units may be used. Unsuitable media may
result in pump unit failure and potentially
severe bodily injury or death and property
damage.
The use of synthetic and biodegradable oils
requires prior approval from SKF.
Commissioning of the gerotor pump unit is
prohibited until such time as the final prod-
uct is determined to confirm with Directive
2006/42/EC.
1.8 Foreseeable misuse
Any usage of the pump differing from the
conditions presented in this manual and the
specified purpose is strictly prohibited. Par-
ticularly prohibited are use:
○in another, more critical explosion pro-
tection
zone than specified in this manual
○without a pressure regulating valve
○outside the specified temperature range
○in areas with aggressive, corrosive sub-
stances (e.g., high ozone loads); these
may corrode the seals and the finish.
○in areas with damaging radiation (e.g.,
ionizing radiation)
○To feed, forward, or store hazardous
substances and mixtures as defined in
Annex I Part 2-5 of the CLP Regulation
(EC 1272/2008)
○To feed / forward / store gases, liquefied
gases, dissolved gases, vapors, or fluids
whose vapor pressure exceeds normal
atmospheric pressure (1013 mbar) by
more than 0.5 bar at their maximum
permissible operating temperature
○overcoating the pump
1.9 Modifications to the product
Unauthorized modifications/changes can
have an unpredictable effect on safety. Un-
authorized modifications/changes are there-
fore prohibited.
1.10 Persons authorized to use
the product
Operator
A person competent due to training and
experience to execute the functions and
activities associated with normal operation;
this also includes the avoidance of possible
hazards that may arise when operating the
machine.
Specialist in maintenance/servicing in po-
tentially explosive atmospheres
A person competent due to qualified techni-
cal education, training, and
experience to recognize risks and
possible hazards when working on the
machine or subcomponents in potentially
explosive atmospheres and to rectify these
by taking suitable actions. The specialist has
knowledge of the various types of protec-
tion, installation procedures, and explosive
atmosphere classifications. The specialist
is familiar with the rules and requirements
relevant to his or her activity and explo-
sion protection, especially ATEX Directive
2014/34/EU.
1.11 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
instructions. Putting the machine into
operation or operating it without having
read the instructions is prohibited.
○The instructions must be kept readily
available together with the product.
○The products described here was manu-
factured according to the state of the
art. Risks may, however, arise from their
usage and may result in personal injury
or damage to material assets. Any mal-
functions which may affect safety must
be remedied immediately. In addition to
these instructions, the statutory regula-
tions and general regulations for accident
prevention and environmental protection
must be observed.

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1. Safety instructions
1.12 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 specified assembly and operat-
ing 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.
○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 can-
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 installed
immediately following conclusion of work
and then checked 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.
○Observe the relevant safety data sheets
when handling lubricants.
○Never use any part of the centralized
lubrication system as a stand, step, or for
climbing.
1.13 Inspections prior to delivery
The following tests were performed prior to
delivery:
○ATEX tests
○Electrical tests according to DIN EN
60204-1:2007/ VDE 0113-1:2007.
○Safety and functional tests
1.14 Emergency pump shut-down
Shut down the pump in an emergency by:
○Switching off the machine/system in
which the gerotor pump unit is integrated
○If necessary, pressing the emergency on/
off switch on the main machine
1.15 Referenced documents
In addition to this manual, the following
documents must be observed by the re-
spective target group:
○The explosion protection document of
the operator
○Operational instructions/approval rules of
the operator
○The material safety data sheet (MSDS) of
the lubricant used
○The instructions for the motor used
If necessary:
○Project planning documents
○Instructions for other components for
setting up the centralized lubrication
system
○Other relevant documents for integra-
tion of the pump into the main machine/
system The operator must supplement
these documents with applicable na-
tional/local regulations for the country
of use. The documentation
must be included if the product is sold or
transferred to a new operator.
1.16 Transport, assembly, servicing,
repair, maintenance
○All relevant persons (e.g., operating per-
sonnel, supervisors) must be informed
of the activity prior to the start of work.
Precautionary operational measures /
work instructions must be observed.
○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.
○Install the pump only outside the op-
erating range of moving parts, at an
adequate distance from sources of heat
or cold.
○Dry any wet, slippery surfaces.
○Cover hot or cold surfaces appropriately.
○Prior to performing work, the pump must
be depressurized and secured against
unauthorized activation. Work on electri-
cal components may be performed only
by qualified electricians. Note possible
waiting times for discharge.
○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.
○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.
○
All work on electrical components may be
performed only with voltage-insulated
tools.
○Fuses must not be bridged. Always re-
place fuses with fuses of the same type.
○Drill any required holes on the system/
machine 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.
○Other units of the machine must not be
damaged or their function impaired by
the installation of the centralized lubrica-
tion system.

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1
1. Safety instructions
○All components used must be designed
for:
- The maximum operating pressure
- The maximum/minimum ambient
temperature
-The lubricant to be delivered
-The required ATEX zone
-The operating/ambient conditions
at the place of use.
○No parts of the centralized lubrication
device may be subjected to torsion, shear,
or bending.
○Check all parts for contamination before
use and clean if necessary. Lubrication
lines should be filled with lubricant prior
to assembly. This simplifies subsequent
venting of the system.
○Adhere to the specified torques. Use
a calibrated torque wrench when
tightening.
○Use suitable hoisting equipment when
working with heavy parts.
○Avoid mixing up/incorrectly assembling
disassembled parts. Label parts.
1.17 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 machine are
fully present, visible, and undamaged.
○Illegible or missing warning labels are
immediately replaced.
○The machine is properly grounded
1.18 Cleaning
○Fire and explosion hazard from the use
of flammable cleaning agents. Use only
non-flammable cleaning agents that are
suitable for the intended purpose.
○Do not use harsh cleaning agents.
○Do not use sharp-edged or sparking
tools for cleaning (e.g., of the cooling fins
on the motor).
○Do not use stream-jet equipment / high-
pressure cleaners. This may damage
electrical components. Observe the IP
protection class.
○Cleaning work on conducting compo-
nents may be performed only by quali-
fied electricians.
○Mark wet areas accordingly.
1.19 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.
1.20 Provision of necessary
information
The operator must the relevant required
instructions available to all persons assigned
with operation, repair, and maintenance.
The operator must ensure that the persons
in question have read and understood the
required instructions.
The same applies to all relevant safety
data sheets, operational instructions,
accident prevention regulations, instructions
from suppliers of purchased parts and
consumables.
Depending on the operational organiza-
tion, the relevant instructions may need
to be made available to further persons/
departments.
1.21 Duty to provide instruction and
training
The operator clearly defines the responsi-
bilities of the personnel for operation/instal-
lation/maintenance. Prior to the first use of
the machine, the operator is obligated to in-
struct all persons authorized to use the ma-
chine on its proper handling in accordance
with their respective field of activity
and responsibility using practical exercises.
The instruction includes at least:
○Zone classification
○Scope and limits of the area of activ-
ity and responsibility for the respective
group of people
○Safety-conscious behavior/behavior in an
emergency
○Avoidance of hazards when handling the
machine
○Meaning of warnings, warning labels
○Handling operating materials and clean-
ing agents
○If necessary, use and monitoring of per-
sonal protective gear
These instructions must be documented and
repeated at regular intervals. New staff may
operate the gerotor pump unit/the machine
only under the supervision and instruction
of experienced staff.

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1. Safety instructions
1.22 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.
1.23 Verification of proper usage
The operator must take appropriate mea-
sures to verify at regular intervals that the
machine is used as intended, no alterations
or manipulations have been performed on
the machine, and all components are fully
functional.
1.24 Provision of personal protective
gear
The operator must provide personal protec-
tive gear appropriate for the location and
intended application. This includes ESD
clothing and ESD tools for work in a poten-
tially explosive atmosphere.
1.25 Information on CE marking
The CE marking is based on the require-
ments of the applied Directives:
○2014/34/EU
Equipment and protective systems in-
tended for use in potentially explosive
atmospheres
○2014/30/EU
Electromagnetic compatibility
○2011/65/EU
(RoHS II) Directive on the restriction of
the use of certain hazardous substances
in electrical and electronic equipment
Note on Low-Voltage Directive 2014/35/EU
The protection objectives of the Low-
Voltage Directive 2014/35/EU are met in
accordance with Annex I, No. 1.5.1 of Ma-
chinery Directive 2006/42/EC.
The protection objectives of the Low-
Voltage Directive 2014/35/EU are met in
accordance with Annex II, No. 1.2.7 of ATEX
Directive 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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1. Safety instructions
1.26 Existing residual risks
Residual risk Remedy
Operating in a potentially explosive atmosphere
Use with non-standard-compliant varnishing
of grounded metals or a conductive surface
○Prior to initial commissioning and then at regular intervals, inspect the varnishing and if neces-
sary have it replaced by a person competent to do so. The maximum permissible varnish layer
thickness is 0.2 mm and must not be exceeded under any circumstances.
Electrostatic hazard due to motor
contamination.
○Immediately remove existing contamination using a moist cloth.
○According to the specific operating conditions, clean the surface of the motor with a moist cloth at
regular intervals.
Heating of non-supplied lubrication points
in the ignition temperature range by an un-
detected malfunction within the centralized
lubrication system.
○System design according to characteristics of the gerotor pump unit
Explosion hazard at excessively high tem-
perature increase
○A volumetric flow meter must be used if the viscosity is <30 mm2/s and the pressure (P) is greater
than 30 bar.
Heating of components in the ignition tem-
perature range/formation of a potentially ex-
plosive atmosphere by agitated/swirled dust.
○Avoid accumulated dust/remove any accumulated dust on a regular basis. Select an installation
location with the lowest possible dust level.
Strong heating of the motor due to jam at
high load or failure of motor circuit breaker.
○Turn off the pump unit. Let parts cool off; remedy the cause. Replace/correctly configure the mo-
tor circuit breaker.
Generation of electrostatic charges, sparks
due to unsuitable clothing or tools. ○Always use ESD clothing and ESD tools within potentially explosive atmospheres.
Generation of sparks by the dropping of
parts. ○Secure parts against falling. If necessary, cover parts to avoid sparking.
Missing or insufficient grounding. ○Check grounding of gerotor pump unit and connection made by customer.
Introduction of catalytic, unstable, or pyro-
phoric substances into the potentially explo-
sive atmosphere.
○Ensure that none of these substances enter the potentially explosive atmosphere. Have all sub-
stances approved by the operator in advance.
Heating due to excessively high back pres-
sure or ceased feeding
○Use a pressure-limiting valve
○Set the pressure-limiting valve correctly

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1. Safety instructions
Residual risk Remedy
Incorrect mounting position.
- Foreign objects fall into the motor’s air inlet.
○Install an appropriate canopy over the air inlet.
Electrical shock due to reduced insulation
resistance. ○Check the insulation resistance at a regular basis.
Electrical shock when connecting the pump
unit.
○Before connecting the pump unit, de-energize all relevant electrical components. Observe any
discharge times. Electrical connections may only be established by electricians tasked and quali-
fied to do so and in accordance with the terminal diagram.
Lifecycle: Transport, assembly, commissioning, operation, malfunction, troubleshooting, maintenance, servicing, shutdown, disposal
Falling of hoisted parts/tools. ○Nobody is allowed to be present below hoisted parts. Unauthorized persons must be kept away.
Secure hoisted parts using suitable lifting gear (e.g., belts, straps, ropes).
Falling of inadequately secured parts.
○Secure parts only to components with a sufficient load-carrying capacity. Observe weights. Ob-
serve specified torques for screw connections. If no torques are specified, use those specified for
screw size for 8.8 screws. See literature from screw manufacturer.
Electric shock due to defective power lead. ○Inspect power lead for damage.
People slipping due to floor contamination
with lubricant.
○ Caution when connecting the hydraulic connections
○ Promptly apply suitable binding agents and then remove the leaked/spilled lubricant
○Follow operational instructions for handling the lubricant and contaminated parts
Tearing/damage to lines when installed on
moving machine components ○Do not install on moving components. if this cannot be avoided, use flexible hose lines.
Tearing/damage to lines when installed on
wearing sports or installed with an exces-
sively small bend radius.
○Use protection lines or anti-kink coils.
○If necessary, add strain relief for cables
Lubricant spraying out due to faulty compo-
nent fitting / faulty line connection
○Use hydraulic screw unions and lines suitable for the indicated pressures. These must be checked
for proper connection and for damage prior to commissioning.
Environmental contamination by lubricant
and wetted parts. ○Dispose of contaminated parts according to the applicable legal/company rules
Strong heating of the motor
due to a jam. ○Switch off pump, let parts cool off; remedy the cause.
Personal injury/property damage due to tilt-
ing or falling product due to non-compliance
with specified torques
Adhere to the specified torques. Secure the product only to components with a sufficient load-
carrying capacity. If no torques are specified, use those specified for the screw size for screws of
strength class 8.8.

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1. Safety instructions
1.27 Warning labels on the product
see Figure 1
The following warning labels are affixed to
gerotor pump units of series 143. Before
commissioning, check that the labels are
present and intact. Immediately replace
warning labels if damaged or missing. The
product must not be operated until then.
See the positioning diagram for the order
number and position on the product.
Positioning of warning labels, Fig. 1
S
S
Item 1
Item 2
Item 1 Rotation arrow
Order No.: 760-072
Item 2 Hot surface
Only for gerotor pump units
of type: 143-2...R...
143-2...T...
143-2...V...
Order No.: 951-111-035
CAUTION
Damage to pump motor/pump
When establishing the electrical
connection of the pump motor, be
mindful of the correct direction of
rotation. The direction of rotation
must match the arrow on the
motor.
CAUTION
Hot surface
Heating of the pump/motor by hot
pumped medium, hot surface of
motor.
Touch hot surfaces only with ap-
propriate protective gloves or after
cooling.

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2. Lubricants
2. Lubricants
2.1 General information
Lubricants are used specially for specific
applications. To fulfill the task, lubricants
must meet various requirements to varying
degrees. The most important requirements
for lubricants are:
○Reduction in friction and wear
○Corrosion protection
○Noise reduction
○Protection against contamination/ingress
of foreign matter
○Cooling (primarily for oils)
○Durability (physical/chemical stability)
○Compatible with as many materials as
possible
○Economic and environmental aspects
2.2 Selection of lubricants
SKF Lubrication Systems considers lubri-
cants to be an element of system design.
The selection of a suitable lubricant should
reasonably be made during the design of
the machine and forms the basis for plan-
ning the centralized lubrication system.
The manufacturer/operator of the machine
should preferably make the selection with
the supplier of the lubricant on the basis of
the requirements profile of the specific task.
If you have no or little experience selecting
lubricants for centralized lubrication sys-
tems, please contact SKF.
We gladly assist our customers in the selec-
tion of suitable components for feeding the
selected lubricant and in the planning and
design of a centralized lubrication system.
This may spare you potentially costly
downtime due to damage to the machine/
system and/or damage to the centralized
lubrication system.
Only lubricants specified for the
product may be used (see “Tech-
nical data” chapter). Unsuitable
lubricants lead to failure of the
product and possibly to property
damage.
Do not mix lubricants. This can
have unpredictable effects on the
usability and this function of the
centralized lubrication system.
Due to the large number of pos-
sible additives, it is possible that
individual lubricants that meet
the required specifications ac-
cording to the manufacturer’s
data sheet are not suitable for
use in centralized lubrication sys-
tems (e.g., incompatibility
between synthetic lubricants and
materials). To avoid this, always
use lubricants tested by SKF.
2.3 Material compatibility
The lubricants must be compatible with
the following materials:
○Steel, gray cast iron, brass, copper,
aluminum
○FKM (FPM), ABS, PA, PU
2.4 Aging of lubricants
In case of extended machine downtime,
check before re-commissioning that the
lubricant is still suitable for use in terms of
chemical/physical signs of aging. We recom-
mend performing this inspection after 1
week
of machine downtime.
In case of doubt regarding the suitability of
the lubricant, replace it before re-commis-
sioning and, if necessary, perform an initial
lubrication manually.
It is possible for lubricants to be tested in the
company's laboratory for their suitability for
pumping in centralized lubrication systems
(e.g., "bleeding").
Please contact SKF if you have further ques-
tions regarding lubricants.
An overview of the lubricants we have
tested is available on request.
2.5 Lubricants in potentially explosive
atmospheres
The lubricant’s ignition tempera-
ture has to be at least 50 kelvin
above the maximum permissible
surface temperature.

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3. Overview, functional description
2
3. Overview, functional description
3.1 Assemblies
Overview, Fig. 2
Item Description
1Gerotor pump unit
in flange design
1.1 Gerotor pump
1.2 Electric motor
1.3 Electric motor terminal box
1.4 Pump flange
1.5 Suction port (S), opposite
pressure port (P)
2Gerotor pump unit
in foot design
2.1 Gerotor pump
2.2 Electrical motor
2.3 Electric motor terminal box
2.4 Pump foot
2.5 Suction port (S), opposite
pressure port (P)
S
Gerotor pump unit
in flange design
1
1.1
1.2
1.3
1.5 Gerotor pump unit in foot design
2
1.4 2.1
2.2
2.3
2.4
2.5
+–341
Product code:
Product series 143
Model design
Seal design
Code for pump design
Voltage
code
Motor certification
Terminal box position
Terminal box position as seen from shaft
extension of drive side
RRight (standard)
OTo p
XOn motor in flange design
(IMB14), terminal box position on
suction port side of pump
(other designs available on request)
Model design
1Motor in foot design (IMB34)
2Motor in flange design (IMB14)
Seal design
FFKM (FPM)
Code for pump design
- see following page 18
Motor certification
EATEX, IEC Ex
Voltage code
XXX - see the following table
3.2 Product codes
2F
Voltage code
+1GD 230/400 V, 50 Hz; 265/460 V, 60 Hz
+1GK 400 /690 V, 50 Hz; 460 V, 60 Hz
E-

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3. Overview, functional description
3.4 Functional description of gerotor
pump units
)See Figure 3
SKF gerotor pump units of product series 143 are used in circu-
lating-oil and total-loss lubrication systems in a flow rate range of
0.85 to 50 l/min.
The standard permissible ambient temperature is between 0 and
+40°C. Higher ambient temperatures are possible, though they lead
to a reduction in motor performance and thus the delivery rate. In
this case, the maximum permissible temperature of the pumped
medium must be reduced.
The permissible temperature of the pumped medium is between 0
and +60°C.
The gerotor pumps include a gasket set made of FKM (FPM).
SKF gerotor pump units feed lubricating and hydraulic oils from a
reservoir and into the pipe system of a centralized lubrication sys-
tem. In doing so, they increase the energy of the pumped medium
(pressure increase) to overcome flow resistance in the pipelines
(pressure loss), the components (filters, valves, distributors), and the
bearings and friction points.
SKF gerotor pump units of different types and performance ratings
are used depending on the type and size of the centralized lubrica-
tion system and the lubricant (see pump code or “Technical data”
chapter).
C
Nominal delivery
rate1) Back pressure, max. Motor drive power Permiss. operating viscosity
range Frame size
Number of
poles
[l/min] [bar] [kW] [mm²/s]
B03D 0.85 30 0.25 20–1000 71 4
D03E 1.7 30 0.37 20–1000 71 2
F02D 2.5 20 0.25 20–1000 71 4
F05F 2.5 50 0.55 20–1000 80 4
H02F 5.25 20 0.55 20–1000 80 4
H05J 5.25 50 1.1 20–1000 90 4
K02H 9 20 0.75 20–1000 80 4
K05K 9 50 1.5 20–1000 90 4
M02H 12.5 20 0.75 20–1000 80 4
M05L 12.5 50 2.2 20–1000 100 4
P02L 19 20 2.2 20–1000 100 4
R02M 30 20 3 20–1000 100 2
R03M 30 30 3 20–750 100 2
R03N 30 30 4 20–1000 112 2
T02M 40 20 3 20–750 100 2
T03N 40 30 4 20–1000 112 2
V02N 50 20 4 20–1000 112 2
V03N 50 30 4 20–750 112 2
V03P 50 30 5.5 20–1000 132 2
1) Nominal delivery rate at motor speed 1400/2800 rpm acc. to number of motor poles.
Code for pump design
3.3 Order example
143-21FD03E-RE+1GD
o Gerotor pump unit of product series 143 (143)
o Motor in foot design (1)
o FKM (FPM) gasket (F)
o Nominal delivery rate 1.7 l/min, back pressure 30 bar,
motor 0.37 kW/output (D03E)
o Terminal box on right (R)
o ATEX, IEC Ex motor certification (E)
o Voltage code
230/400 V, 50 Hz; 265/460 V,
60 Hz (±10%) (+1GD)

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3. Overview, functional description
SKF CircOil centralized lubrication system, Fig. 3
3.5 Operation of the gerotor pump units
)See Figure 4
SKF gerotor pump units of product series 143 have a constant dis-
placement volume and one delivery circuit.
The annular-toothed feeding element, also referred to as the gero-
tor, is equipped with a cycloid contour, which creates a large
tooth meshing length. This yields a low volumetric flow pulsation
and thus very smooth running, low noise production, and good suc-
tion characteristics.
SKF gerotor pumps consist primarily of pump housing (1), the shaft
(2), the displacement elements toothed rotor (3) and annular gear
(4), and the lid (5).
They are driven by attached AC motors of frame sizes 71 to 132 with
flameproof enclosures.
The motors are designed for a rated motor voltage of 230/400 V or
400/690 V for 50 Hz networks with mains voltage fluctuations of
up to ± 10% and frequency fluctuations from -5% to +3% accord-
ing to EN ISO 60034-1.
The normal coils used for this purpose in motors are tailor-
made and meet the IE3 efficiency level according to EU Directive
2009/125/EC.
Special voltage versions with special coils for 50 Hz and 60 Hz net-
works are available for order.
Suction and displacement process
See Figure 4
The shaft drives the centrally mounted toothed rotor in the indicated
direction of rotation via a feather key. The toothed rotor meshes
with the outer, eccentrically mounted annular gear and rotates with
it. The openings between teeth arising in the suction area (S) draw
the pumped medium in. The suction and pressure area is separated
from the tooth meshing area (Z) by a radial gap (R) formed by the
tooth profiles of the annular gear and the toothed rotor as they slide
onto one another. In the pressurized area (P), the fluid is fed to the
pressure port through increasingly small chambers.
1
543
P
S
2
Z
P
R
S
P
S
Gerotor pump units, Fig. 5
Foot design
Functional description of a gerotor pump, Fig. 4

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4. Technical data
Gerotor pump unit
Explosion protection marking II 2G Ex h IIC T4 Gb (ATEX motor- see Chapter 11.1)
II 2D Ex h IIIC T120°C Db (ATEX motor- see Chapter 11.1)
Mounting position Design horizontal/vertical
Permissible ambient temperature 0°C to +40°C
Pumped medium temperature range 0°C to +60°C
Assembly location Maximum 1000 m above sea level / special versions available
Operating noise level Depends on maximum motor operating noise and operating viscosity of medium
Duty type per VDE 0530 S1
Pump
Type Gerotor pump
Flow rate range depending on design 0.85 to 50 l/min
Max. operating pressure depending on design 20 to 50 bar
Pumped medium
Lubricating and hydraulic oils
Lubricating and hydraulic oils with a minimum purity class acc. to ISO 4406 (c) 20/17/14.
This corresponds to the U.S. standard NAS code (1638) class 8 and SAW AS 4059 class 8.
A filter rating of approx. 5 to 10 µm meets this requirement.
Operating viscosity 20 to 1000 mm2/s
Drive speed depending on design 1400 and 2800 rpm
Protection class according to DIN EN 60529 IP 54
Sealing material FKM (FPM)
Suction head, max. 1000 mm
Motor
Direction of rotation See rotation arrow on motor
Cooling method IC 411 (surface cooling with fan)
Temperature monitoring PTC thermistor acc. to DIN 44081, critical temperature 145°C
Terminal box design Metal EAR80
General data
Varnishing Standard varnish RAL 7024 (graphite gray)
Total weight See Chapter 4.2 below
Materials
Pump housing Hydraulic cast (pressure-proof) with good wear and antifriction properties
Gerotor insert Sintered material
Shafts Low-deformation case-hardened steels
Bearings SKF plain bearing
4.1 Basic data
4. Technical data