SKF SMBM-X User manual

Operating Instructions
Flow Limiters SMBM-X and
SMBM-V EEX
Created on: 16-03-2022
Document no.: 951-180-090-EN
Version: 03
Read these instructions before
installation or start-up of the
product and keep them readily
available for consultation.

2
EU Declaration of Conformity in accordance with Directive 2014/34/EU, Annex X
The manufacturer hereby declares under its sole responsibility conformity of the device described below with all relevant harmonization legislation of the
European Union at the time of placing on the market. The technical documentation pursuant to ATEX Directive 2014/34/EU Annex VIII No. 2 has been
compiled and filed with a conformity assessment body.
Designation: Flow limiter
Type: SMBM-…EEX
Item number: 5788-… / 6788-…
Year of manufacture: See type plate
2011/65/EU: RoHS II
2014/30/EU: Electromagnetic Compatibility
EN 60947-5-2:2007/A1:2012
EN 60947-5-6:2000
EN ISO 80079-36:2016 EN 1127-1:2019 EN 1127-2:2014
EN IEC 63000:2018
Walldorf, 18.08.2020
Jürgen Kreutzkämper
Stefan Schürmann
Manager, R&D
Germany
Manager, PD
Germany South
Manufacturer: SKF Lubrication Systems Germany GmbH, Heinrich-Hertz-Str. 2-8, 69190 Walldorf, Germany
Classification as simple electrical apparatus in accordance with EN 60079-14, No. 16.4
for use in potentially explosive atmospheres as defined in the ATEX Directive 2014/34/EU
We hereby confirm that the signal transmitter
Item number: 24-1072-2125
Year of manufacture: see type plate
is merely a passive switching element with a max. internal capacitance of Ci=1 nF and an internal inductance of Li= 5 µH and in its en-
tirety does not contain any own ignition sources.
Signal transmitter 24-1072-2125 is a passive construction element which, for the purpose of the intrinsically safe ignition protection
rating "i," is to be regarded as a simple electrical apparatus in accordance with the requirements of the standard DIN EN 60079-11, No.
5.7, when it is connected to an intrinsically safe electrical circuit with the following maximum values:
Ui = 30 V
Pi = 1 W
Ii = 100 mA
A simple electrical apparatus of this kind is independent of the device level. Simple electrical apparatus must be clearly identifiable by
permanent labeling. It can be labeled by the constructor by some kind of designation marking or coding that is preferred for the system.
For SKF, this identification is performed by the blue connection cable that belongs to the signal transmitter.
Walldorf, 18.08.2020
Jürgen Kreutzkämper
Stefan Schürmann
Manager, R&D
Germany
Manager, PD
Germany South
Manufacturer: SKF Lubrication Systems Germany GmbH, Heinrich-Hertz-Str. 2-8, 69190 Walldorf, Germany

3
Explosion protection marking in accordance with Directive 2014/34/EU
SMBM flow limiters without electrical attachments
The ignition hazard analysis conducted in accordance with EN 80079-36 / -37 found that SKF flow limiters of the series SMBM without
electrical attachments do not constitute own potential sources of ignition. They consequently do not fall under the scope of Directive
2014/34/EU and thus do not bear explosion protection marking. To better incorporate the flow limiters into the operator's explosion pro-
tection concept, these flow limiters have been equipped with an equipotential bonding terminal.
Combination of the SMBM flow limiters with electrical attachments
Signal transmitter 24-1072-2125
No additional ignition source results from the combination of the flow limiter described with the signal transmitters specified in these in-
structions, as it is to be classified as a simple electrical apparatus in accordance with EN 60079-14, No. 16.4. These flow limiters are also
designated as ATEX flow limiters in the following. See associated classification as simple electrical apparatus in accordance with EN
60079-14, No. 16.4, page 2.
Pulse generator 2340-00000091
II 1G Ex ia IIC T6…T1 Ga / II 1D Ex ia IIIC T135°C Da / -20…+57 °C
3/2 changeover valve 24-1254-3437
II 2G Ex e mb IIC T4 Gb / -20...+70 °C
As a result of the combination of the described flow limiters with the pulse generator/changeover valve specified in these instructions,
these devices thus fall within the application range of the directive 2014/34/EU and are therefore bear an explosion protection marking.
See EU Declaration of Conformity pursuant to ATEX Directive 2014/34/EU, Annex X, page 2.

4
Masthead
Manufacturer
SKF Lubrication Systems Germany GmbH
Email: [email protected]
www.skf.com/lubrication
Berlin Plant
Motzener Strasse 35/37
12277 Berlin
Germany
Tel. [phone]
Fax [phone]
Walldorf Plant
Heinrich-Hertz-Strasse 2-8
69190 Walldorf, Germany
Germany
Tel.: [phone]
Fax: [phone]
Warranty
The instructions contain no statements regarding the warranty
or liability for defects. That information can be found in our
General Terms of Payment and Delivery.
Training
We conduct detailed training in order to enable maximum safety
and efficiency. We recommend taking advantage of this training.
For further information, contact your authorized SKF dealer or
the manufacturer.

5
Table of contents
EU Declaration of Conformity in accordance with
Directive 2014/34/EU, Annex X ......................................... 2
Classification as simple electrical apparatus in accordance with
EN 60079-14, No. 16.4...................................................... 2
Explosion protection marking in accordance with Directive
2014/34/EU .......................................................................... 3
Combination of the SMBM flow limiters with electrical
attachments ..........................................................................3
Masthead.............................................................................................4
Table of contents ...............................................................................5
Safety alerts, visual presentation, and layout................................ 7
1. Safety instructions ........................................................................8
1.1 General safety instructions ....................................................8
1.2 General electrical safety instructions ...................................8
1.3 General behaviour when handling the product...................8
1.4 Intended use ............................................................................8
1.5 Persons authorized to use the product................................8
1.6 Foreseeable misuse ................................................................9
1.7 Referenced documents...........................................................9
1.8 Prohibition of certain activities..............................................9
1.9 Painting plastic components and seals ................................9
1.10 Safety markings on the product .........................................9
1.11 Note on the type plate..........................................................9
1.12 Notes on CE marking ........................................................ 10
1.13 Note on Low Voltage Directive ........................................ 10
1.14 Note on Pressure Equipment Directive .......................... 10
1.15 Emergency shutdown........................................................ 10
1.16 Assembly, maintenance, fault, repair.............................. 10
1.17 First start-up, daily start-up ............................................ 10
1.18 Special safety instructions regarding explosion
protection ..................................................................................... 11
1.19 Expiry of the ATEX approval............................................. 11
1.20 Operation in explosion-protected areas ......................... 11
1.21 Explosion protection marking .......................................... 11
1.22 Inspections prior to delivery ............................................. 11
1.23 Briefing of external technicians ....................................... 12
1.24 Provision of personal protective equipment .................. 12
1.25 Operator obligations.......................................................... 12
1.25.1 Determination of hazards ..................................... 12
1.25.2 Explosion protection measures............................ 12
1.25.3 Provision of necessary information..................... 12
1.25.4 Instruction and qualification obligations............. 12
1.26 Explosion protection marking according to Directive
2014/34/EU................................................................................. 12
1.27 Residual risks...................................................................... 13
1.28 Residual ATEX risks ........................................................... 14
2. Lubricants.....................................................................................15
2.1 General information............................................................. 15
2.2 Selection of lubricants ......................................................... 15
2.3 Material compatibility .......................................................... 15
2.4 Temperature properties...................................................... 15
2.5 Aging of lubricants ............................................................... 15
3. Overview, functional description ...............................................16
3.1 Type identification code of flow limiters of series SMBM16
3.1.1 Definition of the type and design ........................... 16
3.1.2 Definition of the electrical port and the plug-in
nozzles.................................................................................. 17
3.2 Plug-in nozzle table SMBM-X D1....................................... 20
3.3 Plug-in nozzle table SMBM-V with D1and D2................. 21
3.4 Ordering a complete flow limiter assembly group........... 22
3.5 Application............................................................................. 23
3.6 Functional description ......................................................... 23
3.7 Example of a circulating-oil- lubrication system with flow
limiter of series SMBM-X........................................................... 26
3.8 Example of a circulating-oil- lubrication system with flow
limiter of series SMBM-V .......................................................... 27
4. Technical data..............................................................................28
4.1 General technical data SMBM ............................................ 28
4.2 Pulse generator 2340-00000091 for gear wheel
indicator........................................................................................ 29
4.3 Oil filter .................................................................................. 29
4.4 Signal transmitter 24-1072-2125 for flow indicator .... 30
4.5 Electrical changeover valve 24-1254-3437 for switching
from start-up operation to normal operation......................... 30
4.6 Plug-in nozzle table SMBM-X D1....................................... 31
4.7 Plug-in nozzle table SMBM-V with D1and D2................. 32
4.8 Calculation of the resulting oil volumetric flow................ 33
4.8.1 Diagram for determination of the nozzle index ... 33
4.8.2 Diagram for determination of the correction factor
for the volumetric flow of the oil ...................................... 34
4.8.3 Determination example........................................... 35
5. Delivery, returns, storage...........................................................36
5.1 Delivery.................................................................................. 36
5.2 Return shipment .................................................................. 36
5.3 Storage .................................................................................. 36
5.4 Storage temperature range................................................ 36
5.5 Declaration of decontamination......................................... 36
6. Assembly.......................................................................................37
6.1 General information............................................................. 37
6.2 Minimum mounting dimensions ........................................ 37
6.3 Assembly drawings SMBM-X ............................................. 38
6.3.1 SMBM-X00 without gear-type flow indicator,
without signal transmitter................................................. 38
6.3.2 SMBM-X22 with signal transmitter ...................... 38
6.3.3 SMBM-X01/X02/X03 with gear-type flow indicator
.............................................................................................. 39
6.3.4 SMBM-X11/X12/X13 with gear-type flow indicator
and pulse generator........................................................... 39
6.3.5 SMBM-X51/X52/X53 with gear-type flow indicator
and signal transmitter........................................................ 40
6.3.6 Filter unit for SMBM-X............................................ 40
6.3.7 Base plates for SMBM-X......................................... 41
6.4 Assembly drawings SMBM-V ............................................. 43
6.4.1 SMBM-V00 without gear-type flow indicator,
without signal transmitter................................................. 43
6.4.2 SMBM-V22 with signal transmitter ...................... 43
6.4.3 SMBM-V01/V02/V03 with gear-type flow
indicator, without pulse generator ................................... 44
6.4.4 SMBM-V11/V12/V13 with gear-type flow indicator
and pulse generator........................................................... 44
6.4.5 SMBM-V51/V52/V53 with gear-type flow indicator
and signal transmitter........................................................ 45
6.4.6 Filter unit for SMBM-V............................................ 45
6.4.7 Changeover valve for SMBM-V.............................. 46

6
6.4.8 Base plates for SMBM-V......................................... 47
6.5 Assembling the flow limiters SMBM .................................. 49
6.6 Mechanical connection options SMBM.............................. 50
6.7 Electrical connection of ATEX pulse generator
2340-00000091 ........................................................................ 52
6.8 Electrical connection of signal transmitter 24-1072-2125
....................................................................................................... 52
6.8.1 General....................................................................... 52
6.8.2 Connection, signal transmitter 24-1072-2125
(connection type XS)........................................................... 53
6.9 Electrical connection of changeover valve 24-1254-3437
....................................................................................................... 54
6.10 Lubrication line connection............................................... 54
7. First start-up............................................................................... 55
7.1 Inspections before first start-up ........................................ 55
7.2 Inspections during first start-up ........................................ 55
8. Operation ..................................................................................... 56
8.1 Temporary shutdown .......................................................... 56
8.2 Permanent shutdown and disposal ................................... 56
8.3 Disposing of dismantled parts ............................................ 56
9. Maintenance and repair............................................................. 57
9.1 Maintenance for flow limiters ............................................. 57
9.2 Maintenance schedule ......................................................... 57
9.3 Changing the plug-in nozzle SMBM .................................. 58
9.3.1 Changing the plug-in nozzle SMBM-X .................. 58
9.3.2 Changing the plug-in nozzle SMBM-V.................. 58
9.4 New mounting or replacement of a flow limiter module
while retaining the base plate module ..................................... 60
9.4.1 New mounting with existing dummy module or
replacement of an SMBM-X module ............................... 60
9.4.2 New mounting with existing dummy module or
replacement of an SMBM-V module ............................... 60
9.4.3 Expanding an existing flow limiter assembly group
by adding an SMBM module ............................................. 61
10. Cleaning..................................................................................... 65
10.1 Cleaning agents.................................................................. 65
10.2 Exterior cleaning ................................................................ 65
10.3 Interior cleaning ................................................................. 65
10.4 Cleaning of the pulse generator....................................... 65
11. Faults, causes, and remedies ................................................. 66
11.1 Malfunctions at the flow limiter ....................................... 66
11.2 System malfunctions with effects on the flow limiter... 67
12. Repairs....................................................................................... 68
12.1 Replacement of signal transmitter 24-1072-2125 ..... 68
12.1.1 with defective signal transmitter.......................... 68
12.1.2 with new signal transmitter.................................. 68
12.2 Mounting or replacement of the pulse generator
2340-00000091 ........................................................................ 69
12.2.1 Subsequent mounting........................................... 69
12.2.2 Pulse generator replacement............................... 69
12.2.3 Carrying out a function check............................... 69
13. Shutdown, disposal.................................................................. 70
13.1 Temporary shutdown ........................................................ 70
13.2 Permanent shutdown, disassembly ................................ 70
13.3 Disposal ............................................................................... 70
13.3.1 Countries within the European Union ................. 70
13.3.2 Countries outside the European Union............... 70
14. Spare parts................................................................................ 71
14.1 Spare parts ......................................................................... 71
14.2 Accessories.......................................................................... 74

7
Safety alerts, visual presenta-
tion, and layout
While reading these instructions, you will encounter various
symbols, illustrations, and text layouts intended to help you
navigate and understand the instructions. Their meaning is ex-
plained below.
Safety alerts:
Activities that present specific hazards (to life and limb or possi-
ble damage to property) are indicated by safety alerts. Always
be sure to follow the instructions given in the safety alerts.
<
DANGER
These safety alerts indicate an imminent danger.
Ignoring them will result in death or serious injury
<
WARNING
These safety alerts indicate potentially imminent
danger. Ignoring them could result in death or se-
rious injury
<
CAUTION
These safety alerts indicate potentially imminent
danger. Ignoring them could result in minor injury
<
NOTICE
These safety alerts indicate a potentially harmful
situation. Ignoring them could result in damage to
property or malfunctions
Illustrations:
The illustrations used depict a specific product. For other prod-
ucts, they may have the function of a diagram only. This does
not alter the basic workings and operation of the product.
Text layout:
•First-order bulleted lists: Items on a bulleted list start with
a solid black dot and an indent.
–Second-order bulleted lists: If there is a further listing of
subitems, the second-order bulleted list is used.
1 Legend: A legend explains the numbered contents of an illus-
tration, presented as a numbered list. Items in a legend start
with a number (with no dot) and an indent.
–Second-order legend: In some cases, the numbered con-
tents of an image represent more than just one object. A
second-order legend is then used.
1.Instruction steps: These indicate a chronological sequence
of instruction steps. The numbers of the steps are in bold and
are followed by a period. If a new activity follows, the num-
bering starts again at “1.”
–Second-order instruction steps: In some cases, it is nec-
essary to divide up a step into a few substeps. A sequence
of second-order instruction steps is then used.

8
1. Safety instructions
1.1 General safety instructions
•Putting the products into operation or operating them without
having read the instructions is prohibited. The operator must
ensure that the instructions are read and understood by all
persons tasked with working on the product or who supervise
or instruct such persons. Retain the instructions for further
use.
•The product may only be used in awareness of the potential
dangers, in proper technical condition, and according to the
information in this manual.
•Any faults that could affect safety must be remedied accord-
ing to responsibility. The supervisor must be notified immedi-
ately in case of malfunctions outside one's individual scope of
responsibility.
•Unauthorized modifications and changes can have an unpre-
dictable effect on safety and operation. Unauthorized modifi-
cations and changes are therefore prohibited. Only original
SKF spare parts and SKF accessories may be used.
•Any unclear points regarding proper condition or correct as-
sembly/operation must be clarified. Operation is prohibited
until issues have been clarified.
•The components used must be suitable for the intended use
and the applicable operating conditions, e.g. max. operating
pressure and ambient temperature range, and must not be
subjected to torsion, shear, or bending.
1.2 General electrical safety instructions
•Electrical devices must be kept in proper condition. This must
be ensured by periodic inspections in accordance with the rel-
evant applicable standards and technical rules. The type, fre-
quency, and scope of the inspections must be determined in
accordance with the risk assessment to be carried out by the
operator. Work on electrical components may be performed
only by qualified electricians. Connect the electrical power
only in accordance with the valid terminal diagram and in ob-
servance of the relevant regulations and the local electrical
supply conditions.
•Work on electrical components may be performed only in a
voltage-free state and using tools suitable for electrical work.
Do not touch cables or electrical components with wet or
moist hands.
•Fuses must not be bridged. Always replace defective fuses
with fuses of the same type.
•Ensure proper connection of the protective conductor for
products with protection class I. Observe the specified enclo-
sure rating.
•The operator must implement appropriate measures to pro-
tect vulnerable electrical devices from the effects of lightning
during use. The electrical device is not furnished with a
grounding system for the dissipation of the respective electric
charge and does not have the voltage strength necessary to
withstand the effects of lightning.
1.3 General behaviour when handling the
product
•Familiarize yourself with the functions and operation of the
product. The specified assembly and operating steps and their
sequences must be observed.
•Keep unauthorized persons away.
•Wear personal protective equipment always.
•Precautionary operational measures and instructions for the
respective work must be observed.
•In addition to these Instructions, general statutory regulations
for accident prevention and environmental protection must be
observed.
•Precautionary operational measures and instructions for the
respective work must be observed. Uncertainty seriously en-
dangers safety.
•Safety-related protective and safety equipment must not be
removed, modified or affected otherwise in its function and is
to be checked at regular intervals for completeness and func-
tion.
•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. Im-
mediately inform your superior in the case of faults beyond
your competence.
•Never use parts of the centralized lubrication system or of the
machine as standing or climbing aids.
1.4 Intended use
Supply of lubricant to lubrication points.
The product is intended solely for installation in another ma-
chine.
Use is only permitted within the scope of commercial or eco-
nomic activity by professional users, in compliance with the
specifications, technical data, and limits specified in this manual.
1.5 Persons authorized to use the prod-
uct
Operator
A person who is qualified by training, knowledge and experience
to carry out the functions and activities related to normal oper-
ation. This includes avoiding possible hazards that may arise
during operation.
Specialist in electrics
Person with appropriate professional education, knowledge and
experience to detect and avoid the hazards that may arise from
electricity.
Specialist in mechanics
Person with appropriate professional education, knowledge and
experience to detect and avoid the hazards that may arise dur-
ing transport, installation, start-up, operation, maintenance, re-
pair and disassembly.

9
Operator
A person competent due to training, knowledge, and experience
to execute the functions and activities associated with normal
operation. This also includes the avoidance of possible hazards
that may arise during operation.
Specialist in maintenance and servicing in potentially ex-
plosive atmospheres
This is a person who, through their qualified technical education,
training, and experience, is competent to recognize risks and
possible hazards when working on the device or subcomponents
in potentially explosive atmospheres and to neutralize these by
taking suitable actions. The specialist has knowledge of the vari-
ous types of protection, installation procedures, and explosive
atmosphere classifications. The specialist is familiar with the
rules and requirements relevant to their activity and to explo-
sion protection, especially ATEX Directives 2014/34/EU and
1999/92/EC.
Qualified electrician
A person with appropriate technical training, knowledge, and
experience who can recognize and avoid the hazards that may
arise from electricity.
1.6 Foreseeable misuse
Any usage of the product other than as specified in this manual
is strictly prohibited and will invalidate its ATEX approval. Partic-
ularly prohibited are:
•Use outside the specified ambient temperature range.
•Use of non-specified consumables.
•Use of dirty lubricants or lubricants with air inclusions.
•Use of C3 versions in areas with aggressive, corrosive sub-
stances (e.g., high salt load).
•Use of plastic parts in areas with high exposure to ozone, UV
light, or ionizing radiation.
•Use to supply, convey, or store hazardous substances and
mixtures as defined in the CLP Regulation (EC 1272/2008) or
GHS with acute oral, dermal, or inhalation toxicity or sub-
stances and mixtures that are marked with hazard pictograms
GHS01-GHS06 and GHS08.
• Use to supply, convey, or store Group 1 fluids classified as
hazards as defined in the Pressure Equipment Directive
(2014/68/EU) Article 13 (1) a).
•Use to supply, convey, or store gases, liquefied gases, dis-
solved 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.
•Use to supply, convey, or store lubricants containing volatile
solvents.
•Use without proper safeguards against excessively high pres-
sures, in the case of pressurized products.
•Use in a different, more critical explosion protection zone than
that specified on the type plate.
•Use with a finish or paint coat applied improperly after deliv-
ery. The finish or paint coat must meet the requirements of
the standards applicable to ATEX.
•Use in potentially explosive gases and vapors whose ignition
temperature is less than 125% of the maximum surface tem-
perature.
•Use in potentially explosive dusts whose minimum ignition
temperature and glow temperature are less than 150% of the
maximum surface temperature.
•Use of lubricants with temperatures above the maximum per-
missible ambient temperature.
• Use while failing to observe the prescribed repair and mainte-
nance intervals or the referenced documents.
1.7 Referenced documents
In addition to this manual, the following documents must be ob-
served by the respective target group:
•Company instructions and approval rules
If applicable:
•Safety data sheet of the lubricant used
•Project planning documents
•Supplementary information regarding special designs of the
pump. This you will find in the special system documentation.
•Instructions for other components for setting up the central-
ized lubrication system.
1.8 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 attachments, e.g. sensors
•Repairs, modifications to the monitoring equipment
•Replacement, modifications to the nozzles and the pressure
balance of the throttle bushing
1.9 Painting plastic components and se-
als
The painting of any plastic components and seals of the prod-
ucts described is prohibited. Completely mask or remove plastic
components before painting the main machine.
1.10 Safety markings on the product
Symbol for equipotential bonding connections on the
product
1.11 Note on the type plate
The type plate provides important data such as the type desig-
nation, order number, and sometimes regulatory characteris-
tics. To avoid loss of this data in case the type plate becomes il-
legible, it should be entered in the manual.

10
Fig. 1
Type plate of the SMBM-X
Fig. 2
Type plate of the SMBM-V
Fig. 3
Type plate of an SMBM-assembly group
1.12 Notes on CE marking
CE marking is effected following the requirements
of the applied directives requiring a CE marking:
•2014/30/EC Electromagnetic Compatibility
•2011/65/EU Directive on the restriction of the use of certain
hazardous substances in electrical and electronic equipment
(RoHS II)
•2014/34/EU Directive for equipment and protective systems
intended for use in potentially explosive atmospheres (ATEX)
1.13 Note on Low Voltage Directive
The protection objectives of the Low Voltage Directive
2014/35/EU are met in accordance with Annex II, No. 1.2.7 of
the ATEX Directive 2014/34/EU.
1.14 Note on Pressure Equipment Direc-
tive
Due to its performance characteristics, the product does not
reach the limit values defined in Article 4, Paragraph 1, Subpar-
agraph (a) (ii) and is excluded from the scope of Pressure Equip-
ment Directive 2014/68/EU in accordance with Article 1, Para-
graph 2 Subparagraph (f).
1.15 Emergency shutdown
This is done by a course of action to be defined by the operator.
1.16 Assembly, maintenance, fault, re-
pair
Prior to the start of this work, all relevant persons must be noti-
fied of it. At a minimum, the following safety measures must be
taken before any work is done:
•Unauthorized persons must be kept away
•Mark and secure the work area
•Cover adjacent live parts
•Dry any wet, slippery surfaces or cover them appropriately
•Cover hot or cold surfaces appropriately
Where applicable:
•Depressurize
•Isolate, lock and tag out
•Check to ensure live voltage is no longer present
•Ground and short-circuit
The product should be protected as much as possible from
humidity, dust, and vibration, and should be installed so that it is
easily accessible. Ensure an adequate distance from sources of
heat or cold. Any visual monitoring devices present, such as
pressure gauges, min./max. markings, or oil level gauges must
be clearly visible. Observe the mounting position requirements.
Drill required holes only on non-critical, non-load-bearing
parts of the operator's infrastructure. Use existing holes where
possible. Avoid chafe points. Immobilize any moving or detached
parts during the work. Adhere to the specified torques.
If guards or safety devices need to be removed, they must be
reinstalled immediately following conclusion of work and then
checked for proper function.
Check new parts for compliance with the intended use before
using them.
Avoid mixing up or incorrectly assembling disassembled parts.
Label parts. Clean any dirty parts.
1.17 First start-up, daily start-up
Ensure that:
•All safety devices 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

11
1.18 Special safety instructions regarding
explosion protection
•Always behave so that explosion hazards are avoided.
•A written work approval from the operator is required prior to
working in potentially explosive areas. Keep unauthorized
persons away.
•There must be no indications that parts of the explosion pro-
tection are missing or are not working. Should such indica-
tions 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 surfaces 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.
•Only use tools and clothing which are permitted for use in po-
tentially explosive areas (ESD).
•Transport, installation, repairs and work on electrical compo-
nents 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 writing. If the work is not carried out by the
manufacturer, the repairs must be approved by a named ex-
pert and confirmed in writing. The repairs are to be marked
by a repair sign on the machine, stating the following.
–Date
–Company responsible for the work
–Type of repair
–Where appropriate, the identifying mark of the expert
•Transport damages may result in the loss of the explosion
protection. If transport damages can be seen, do not assem-
ble the product nor put it into operation.
•All parts of the equipotential bonding / earthing concept must
be correctly available and connected with the superordinate
machine.
•If transport lugs are dismantled after set-up, the threaded
bores must be permanently sealed in accordance with the de-
gree of protection.
•Handle the materials so that no sparks generated by tilting,
falling, sliding, rubbing, impacting, etc. If needed, cover mate-
rials with suitable means.
•Never disconnect plug-in connections when energized. Secure
plug-in connections against inadvertent manual disconnection
with the safety clips included in the delivery.
•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 ascertained, provide
a low-level signal or suitable organisational measures for
monitoring 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 for corrosion regularly. Replace the
affected parts.
•Terminal boxes must be firmly closed and the cable ducts
correctly sealed.
•Additional electrical monitoring devices must be firmly con-
nected and correctly adjusted.
1.19 Expiry of the ATEX approval
The ATEX certificate for this product expires through:
•Use not in accordance with the intended purpose, e.g. in a dif-
ferent, more critical potentially explosive atmosphere
•Unauthorized modifications.
•Use of non-original SKF spare parts / components.
•Non-observance of these instructions and other applicable
documents.
•Use of non-specified / unsuitable operating materials.
•Operation with damaged or lacking ATEX painting or ATEX
painting done wrongly later on
•Operation with damaged or lacking ATEX painting or ATEX
painting done wrongly later on
•Non-observance of the permissible operating and ambient
conditions
•Operation with damaged or lacking ATEX painting or ATEX
painting done wrongly later on.
•Non-observance of the operator’s explosion protection docu-
ment.
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 ref-
erenced documents.
•all laws and regulations to be complied with by the user.
•the information on explosion protection according to directive
1999/92/EC (ATEX 137).
1.21 Explosion protection marking
The explosion protection marking is found in the declaration of
conformity and on the type identification plate.
1.22 Inspections prior to delivery
The following inspections were carried out prior to delivery:
•Safety and functional tests
•In case of electrically driven products: electrical inspections
following EN 60204-1:2019-06; VDE 0113-1:2019-06
•Inspections following the requirements of the ATEX Directive.

12
1.23 Briefing of external technicians
Prior to commencing the activities, external technicians must be
informed by the operator of the company safety provisions, the
applicable accident prevention regulations to be maintained, and
the functions of the superordinate machine and its protective
devices.
1.24 Provision of personal protective
equipment
The operator must provide suitable personal protective equip-
ment for the respective location of operation and the purpose of
operation. For work in potentially explosive atmospheres this
also includes ESD clothing and ESD tools.
1.25 Operator obligations
1.25.1 Determination of hazards
•The operator must determine all hazards resulting from the
integration of the pump into the superordinate machine and
the hazards at the location of operation of the machine, and
carry out the measures necessary to ensure safety and health
protection.
1.25.2 Explosion protection measures
•Due to a holistic assessment of the workplace, the operator
ensures that the working equipment and all installation mate-
rials are suitable for operation in potentially explosive areas,
and that they are assembled, installed and operated so that
they do not give rise to explosions.
•If changes, extension and/or redesigns are undertaken in po-
tentially explosive areas, the operator must carry out the re-
quired measures so that these changes, extensions or rede-
signs fulfil the minimum regulations for explosion protection.
The operator
•documents the measures for explosion protection.
•marks the potentially explosive areas.
•prepares written operating instructions.
•selects suitable employees.
•provides the employees with sufficient and appropriate in-
structions related to explosion protection.
•applies an approval system for hazardous activities and for
those which may become hazardous in interaction with other
work.
•carries out the necessary inspections and monitoring.
•ensures that only original spare parts are used.
1.25.3 Provision of necessary information
•The operator must make the instructions required for the re-
spective activity accessible to all people commissioned with
operation, maintenance and repairs.
•He must ensure that these people have read the necessary
instructions and have understood them.
•The same applies for all relevant safety data sheets, company
instructions, accident prevention regulations, instructions
from suppliers of purchase parts and utilities.
•Depending on the business organization, the relevant instruc-
tions may have to be made accessible to other people and de-
partments.
1.25.4 Instruction and qualification obligati-
ons
•The operator clearly determines the responsibility of person-
nel for operation, installation and repairs. The operator is
obliged to instruct all people authorized for use in the correct
handling of the machine prior to initial use, in accordance with
the respective activity and area of responsibility, based on
practical exercises.
The instructions must contain at least:
•zone divisions
•scope and limits of the activity and area of responsibility of the
respective group of people
•safe behaviour and behaviour in case of emergency
•avoidance of hazards when dealing with the product and the
superior machine
•meaning of warning guidelines and warning labels
•dealing with lubricants and cleaning agents
•use and inspection of personal protective equipment, where
appropriate
These instructions are to be documented and repeated at regu-
lar intervals. New personnel may operate the machine under
supervision and instruction by experienced personnel only.
1.26 Explosion protection marking ac-
cording to Directive 2014/34/EU
The ignition hazard analysis conducted in accordance with EN
80079-36 /-37 found that the products without electrical at-
tachments described in these instructions do not constitute own
potential sources of ignition. They consequently do not fall un-
der the scope of Directive 2014/34/EU and thus do not bear ex-
plosion protection marking. The combination of the products
described here with the explosion-proof electrical components
specified in this manual does not create an additional source of
ignition. The explosion protecting marking on these products is
based solely on the attached explosion-proof electrical compo-
nent.

13
1.27 Residual risks
Table 1
Residual risks
Residual risk Possible in lifecycle Avoidance / Remedy
Personal injury / property damage due
to falling of hoisted parts
A B C G H K •Unauthorized persons must be kept away
•Personnel are not permitted to stand under hoisted
parts
•Lift parts using suitable lifting gear
Personal injury / property damage due
to tilting or falling product due to non-
compliance with specified torques
B C G •Adhere to the specified torques
•Secure the product only to components with a suffi-
cient load-carrying capacity
•If no torques are specified, use those specified for the
screw size for screws of strength class 8.8
Personal injury / property damage due
to electric shock resulting from connec-
tion cable damage
B C D E F G H •Inspect connection cables for damage prior to initial
use and then at regular intervals.
•Do not install the cable on moving parts or wearing
spots
•If this cannot be avoided, use anti-kink coils and/or
conduits
Personal injury / property damage due
to spilled, leaked lubricant
B C D F G H K •Be careful when filling the lubricant reservoir and
when connecting or disconnecting the lubricant lines.
•Use only hydraulic screw unions and lubrication lines
suitable for the specified pressure
•Do not install lubrication lines on moving parts or
wearing spots.
•If this cannot be avoided, use flexible hose lines or
anti-kink coils and/or conduits
Lifecycles: A = Transport, B = Assembly, C = First start-up, D = Operation, E = Cleaning, F = Maintenance, G = Malfunction, repair,
H = Shutdown, K = Disposal

14
1.28 Residual ATEX risks
Table 2
Residual hazards when operating in a potentially explo-
sive atmosphere
A
voidance / Remedy
Use in a potentially explosive atmosphere without checking
equipotential bonding for electrical continuity
•Check the equipotential bonding for continuity before first start-up, af-
ter every repair, and additionally at regular intervals defined by the op-
erator
Use of non-standard-compliant varnishing of grounded
metals or a conductive surface
•Prior to first start-up and then at regular intervals, inspect the varnish-
ing and if necessary have it replaced by a person competent to do so
Heating of non-supplied lubrication points to the ignition
temperature range by an undetected malfunction within
the centralized lubrication system
•The operator must critically examine whether operation without corre-
sponding detection options results in a new hazard potential (e.g., due
to heating of non-supplied bearings on the machine to the range of the
ignition temperature)
•If this cannot be reliably excluded, take appropriate countermeasures
Heating of components to the ignition temperature range /
formation of a potentially explosive atmosphere by agi-
tated/swirled dust
•Avoid accumulated dust / remove accumulated dust on a regular basis
•Select an installation location with the lowest possible dust level
Generation of electrostatic charges, sparks by dropping of
parts
•Secure parts against falling
•If necessary, cover parts to avoid sparking
Introduction of catalytic, unstable, or pyrophoric sub-
stances into the potentially explosive atmosphere
•Ensure that none of these substances enters the potentially explosive
atmosphere
•Have all substances approved by the operator in advance
Use of isolating amplifiers, for example to operate a capac-
ity sensor in the potentially explosive atmosphere
•Install isolating amplifiers only outside of the potentially explosive at-
mosphere
Incorrect mounting position. Loss of proper fill level re-
porting function
•Follow the prescribed mounting position (tolerance range ± 5°) / correct
the mounting position as necessary
Use of an unsuitable lubricant at low temperatures. At low
temperatures, excessive lubricant viscosity can cause loss
of flow limiter function
•Use only lubricants suitable for the specific operating temperature in
each case

15
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)
•Compatibility with as many materials as possible
•Economic and environmental aspects
<
NOTICE
Safe operation of the flow limiters is ensured only
when clean lubricating oil is being supplied. The
lubricating oil must be free of air inclusions during
its conveyance.
2.2 Selection of lubricants
SKF Lubrication Systems considers lubricants 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 planning the centralized lubrication system.
The manufacturer/operator of the machine should preferably
make the selection with the supplier of the lubricant on the ba-
sis of the requirements profile of the specific task.
If you have no or little experience selecting lubricants for cen-
tralized lubrication systems, please contact SKF.
We gladly assist our customers in the selection of suitable
components for supplying the selected lubricant and in the
planning and design of a centralized lubrication system.
This will spare you potentially costly downtime due to damage
to the machine/system and/or damage to the centralized lubri-
cation system.
NOTE
•Only lubricants specified for the product may be used (see
"Technical data" chapter). Unsuitable lubricants may lead
to failure of the product.
•Do not mix lubricants. This can have unpredictable effects
on the usability and thus on the functioning of the cen-
tralized lubrication system.
•Due to the large number of possible additives, individual
lubricants that meet the required specifications according
to the manufacturer’s data sheet are under some circum-
stances not suitable for use in centralized lubrication sys-
tems (e.g., incompatibility between synthetic lubricants
and materials). To avoid this, always use lubricants that
have been tested by SKF.
•Observe the relevant safety data sheets and any instruc-
tions regarding hazards marked on the packaging when
handling lubricants.
2.3 Material compatibility
The lubricants must generally be compatible with the following
materials:
•Steel, gray cast iron, brass, copper, aluminum
•NBR, FPM, ABS, PA, PU
2.4 Temperature properties
The lubricant used must be suitable for the specific operating
temperature of the product.
The viscosity required for proper functioning of the product
must be maintained and must not be exceeded at low tempera-
tures or fall too low at low temperatures. See the "Technical
data" chapter for the required viscosities.
The lubricant’s ignition temperature has to be at least 50 kel-
vin above the maximum surface temperature of the compo-
nents.
2.5 Aging of lubricants
In case of extended machine downtime, check before putting
back into operation that the lubricant is still suitable for use in
terms of chemical and physical signs of aging. We recommend
performing this inspection after one week of machine downtime.
In case of doubt regarding the suitability of the lubricant, re-
place it before putting into operation again and, if necessary,
perform an initial lubrication manually.
It is possible for lubricants to be tested in the company's la-
boratory for their pumpability in centralized lubrication systems
(e.g., "oil separation").
Please contact SKF if you have further questions regarding
lubricants.
An overview of the lubricants we have tested is available on
request.

16
3. Overview, functional description
3.1 Type identification code of flow limiters of series SMBM
3.1.1 Definition of the type and design
S M B M - V 1 1 C S 0 2 5 - E E X
Component designation:
SMB Flow limiter
Type:
M Modular design
Design/switchover option:
X Single flow rate (one plug-in nozzle D1)
For details, see Figure 4
V Starting hydraulic flow (plug-in nozzle D1) and
operating hydraulic flow (plug-in nozzle D2)
For details, see Figure 5
Design key / monitoring:
00 without gear-type flow indicator, without signal
transmitter
22 without gear-type flow indicator, with signal
transmitter 24 V DC (with LED)
01 with gear-type flow indicator, 333 pulses per li-
ter, without pulse generator, max. plug-in nozzle
size 295
02 with gear-type flow indicator, 167 pulses per li-
ter, without pulse generator
03 with gear-type flow indicator, 83 pulses per liter,
without pulse generator
11 with gear-type flow indicator, 333 pulses per li-
ter, with pulse generator, max. plug-in nozzle
size 295
12 with gear-type flow indicator, 167 pulses per li-
ter, with pulse generator
13 with gear-type flow indicator, 83 pulses per liter,
with pulse generator
51 with gear-type flow indicator, 333 pulses per li-
ter, max. plug-in nozzle size 295 and signal
transmitter 24 V DC (without LED)
52 with gear-type flow indicator, 167 pulses per liter
and signal transmitter 24 V DC (without LED)
53 with gear-type flow indicator, 83 pulses per liter
and signal transmitter 24 V DC (without LED)

17
3.1.2 Definition of the electrical port and the plug-in nozzles
S M B M - V 1 1 C S 0 2 5 - E E X
Electrical connection:
XX without connection cable
CA Connection cable with angle plug
CS Connection cable with straight plug
XA with angle plug, without cable
XS with straight plug, without cable
Plug-in nozzle index:
3-digit code of the plug-in nozzles for the SMBM-X
(D1) see table 3
3-digit code of the plug-in nozzles for the SMBM-V
(D1/D2) see table 4
ATEX design:
-EEX
Further order example:
SMB MX22 XS 150-EEX
•Flow limiter
•Modular design
•Single-Flow
•Without gear-type flow indicator, with signal transmitter 24 V DC (with LED)
•With straight plug, without cable
•Plug-in nozzle D1with nominal volumetric flow 1.67 l/min / 3.53 pts/min
•Explosion-proof design

18
Overview of the flow limiter SMBM-X version (Single-Flow)
Fig. 4
Flow limiter SMBM-X
Legend:
1 SMBM-X00 (code in the type identification code: 00)
2 SMBM-X22 (code in the type identification code: 22)
3 SMBM-X01, SMBM-X02 oder SMBM-X03 (code in the type identification code: 01, 02 or 03)
4 SMBM-X11, SMBM-X12 or SMBM-X13 (code in the type identification code: 11, 12 or 13)
5 SMBM-X51, SMBM-X52 or SMBM-X53 (code in the type identification code: 51, 52 or 53)
6 Filter with shut-off valve
7 Inlet section

19
Overview of the flow limiter SMBM-V version (Dual-Flow)
Fig. 5
Flow limiter SMBM-V
Legend:
1 SMBM-V00 (code in the type identification code: 00)
2 SMBM-V22 (code in the type identification code: 22)
3 SMBM-V01, SMBM-V02 or SMBM-V03 (code in the type identification code: 01, 02 or 03)
4 SMBM-V11, SMBM-V12 or SMBM-V13 (code in the type identification code: 11, 12 or 13)
5 SMBM-V51, SMBM-V52 or SMBM-V53 (code in the type identification code: 51, 52 or 53)
6 Changeover valve
7 Filter with shut-off valve
8 Inlet section

20
3.2 Plug-in nozzle table SMBM-X D1
Table 3
Nozzle in-
dex1)
Nominal volumetric flow2)
[l/min] [pts/min] Item number
<Content>
050 0.08 0.17 24-0455-2574
055 0.12 0.25 24-0455-2575
060 0.15 0.32 24-0455-2576
065 0.20 0.42 24-0455-2577
070 0.25 0.53 24-0455-2578
075 0.29 0.61 24-0455-2579
080 0.35 0.74 24-0455-2580
085 0.41 0.87 24-0455-2581
090 0.47 0.99 24-0455-2582
095 0.56 1.18 24-0455-2583
100 0.65 1.37 24-0455-2584
105 0.73 1.54 24-0455-2585
110 0.79 1.67 24-0455-2586
115 0.88 1.86 24-0455-2587
120 0.98 2.07 24-0455-2588
125 1.09 2.30 24-0455-2589
130 1.18 2.49 24-0455-2590
135 1.30 2.75 24-0455-2591
140 1.43 3.02 24-0455-2592
145 1.56 3.30 24-0455-2593
150 1.67 3.53 24-0455-2594
155 1.79 3.87 24-0455-2595
160 1.92 4.06 24-0455-2596
165 2.07 4.37 24-0455-2597
170 2.21 4.67 24-0455-2598
175 2.36 4.99 24-0455-2599
180 2.52 5.33 24-0455-2600
185 2.67 5.64 24-0455-2601
190 2.80 5.92 24-0455-2602
195 2.98 6.30 24-0455-2603
200 3.16 6.68 24-0455-2604
205 3.30 6.97 24-0455-2605
210 3.43 7.25 24-0455-2606
215 3.58 7.57 24-0455-2607
220 3.79 8.01 24-0455-2608
225 3.98 8.22 24-0455-2609
Table 3
Nozzle in-
dex1)
Nominal volumetric flow2)
[l/min] [pts/min] Item number
<Content>
230 4.18 8.83 24-0455-2610
235 4.37 9.24 24-0455-2611
240 4.57 9.66 24-0455-2612
245 4.80 10.14 24-0455-2613
250 5.00 10.57 24-0455-2614
255 5.19 10.97 24-0455-2615
260 5.37 11.35 24-0455-2616
265 5.55 11.73 24-0455-2617
270 5.77 12.19 24-0455-2618
275 5.99 12.66 24-0455-2619
280 6.22 13.15 24-0455-2620
285 6.49 13.72 24-0455-2621
290 6.74 14.24 24-0455-2622
295 6.95 14.69 24-0455-2623
300 7.17 15.15 24-0455-2624
305 7.31 15.45 24-0455-2625
310 7.48 15.81 24-0455-2626
315 7.72 16.32 24-0455-2627
320 7.98 16.86 24-0455-2628
1) Coding in the type identification code
2) The nominal volumetric flows specified in the table are in ref-
erence to a dynamic viscosity of 300 mm2/s at an oil tempera-
ture of 20 °C. They are approximate values and may need to be
modified in accordance with different viscosities. See section 4.8
Calculation of the resulting oil volumetric flow.