SKF CLS User manual

Assembly Instructions
CLS pump
Pump for single-line systems
Created on:
22.06.2023
Document no.:
951-171-069-EN
Version:
05
Read these instructions before
installation or start
-up of the
product and keep
them readily
available for later consultation!

2
Original EC Declaration of Incorporation in accordance with Directive 2006/42/EC,
Appendix II Part 1 B
The manufacturer hereby declares at its sole responsibility that the partly completed machinery conforms to the essential health and safety requirements
of the Machinery Directive 2006/42/EC, Annex I, marked in the Annex to the EC Declaration of Incorporation as applicable and fulfilled at the time of placing
on the market.
The special technical documents were prepared following Annex VII part B. Upon justifiable request, these special technical documents can be forwarded
electronically to the respective national authorities. The authorized company for the compilation of the technical documentation is the manufacturer.
Designation:
Electrically operated pump for the feeding of lubricants in interval operation inside a centralized lubrication system
Type:
CLS-xxxxxx-xxxx-xxxx-xxxxxxxx
Furthermore, the following directives and standards were applied in the respective applicable areas:
2006/42/EC: Machinery Directive
2014/30/EU: Electromagnetic Compatibility
2011/65/EU: RoHS II
EN ISO 12100:2010
EN 60204-1:2018
EN 809:1998+A1:2009/AC:2010
EN 61000-6-2:2005/AC:2005
EN 61000-6-4:2007/A1:2011
EN IEC 63000:2018
The partly completed machinery must not be put into service until it has been established that the machinery into which it is to be incorporated is in
compliance with the provisions of the Machinery Directive 2006/42/EC and all other applicable Directives.
Walldorf, 20.12.2021
Jürgen Kreutzkämper
Dr. Holger Schmidt
Manager R&D Germany
Manager Modularization
SKF Lubrication Management
Hersteller: SKF Lubrication Systems Germany GmbH, Heinrich-Hertz-Str. 2-8, DE - 69190 Walldorf
Original UK Declaration of incorporation according to the Supply of Machinery (Safety)
Regulations 2008 No. 1597 Annex II
The manufacturer hereby declares under sole responsibility that the partly completed machinery complies with the essential health and safety
requirements of UK legislation Supply of Machinery (Safety) Regulations 2008 No. 1597 Annex I, marked in the Annex to the EC Declaration of
Incorporation as applicable and fulfilled at the time of placing on the market.
The special technical documents were prepared following Annex VII part B. Upon justifiable request, these special technical documents can be forwarded
electronically to the respective national authorities. The authorized company for the compilation of the technical documentation is SKF (U.K.) Limited,
2 Canada Close, Banbury, Oxfordshire, OX16 2RT, GBR.
Designation:
Electrically operated pump for the feeding of lubricants in interval operation inside a centralized lubrication system
Type:
CLS-xxxxxx-xxxx-xxxx-xxxxxxxx
Furthermore, the following regulations and standards were applied in the respective applicable areas:
Supply of Machinery (Safety) Regulations 2008 No. 1597
Electromagnetic Compatibility Ordinance 2016 No. 1091
The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012 No. 3032
EN ISO 12100:2010
EN 60204-1:2018
EN 809:1998+A1:2009/AC:2010
EN 61000-6-2:2005/AC:2005
EN 61000-6-4:2007/A1:2011
EN IEC 63000:2018
The partly completed machinery must not be put into service until it has been established that the machinery into which it is to be incorporated is in
compliance with the provisions of UK legislation Supply of Machinery (Safety) Regulations 2008 No. 1597 and all other applicable Directives.
Walldorf, 20.12.2021
Jürgen Kreutzkämper
Dr. Holger Schmidt
Manager R&D Germany
Manager Modularization
SKF Lubrication Management
Hersteller: SKF Lubrication Systems Germany GmbH, Heinrich-Hertz-Str. 2-8, DE - 69190 Walldorf

3
Appendix to Declaration of Incorporation in accordance with 2006/42/EC, Annex II, No. 1 B
Description of the essential health and safety requirements according to 2006/42/EC, Annex I, which have been applied and fulfilled. Any
essential health and safety requirements not listed here are not relevant to this product.
Table 1
Appendix to Declaration of Incorporation
Valid for: CLS lubricant feed pumps
No.:
Essential health and safety requirement
Applicable:
Fulfilled:
1.1.1
Definitions
Yes
Yes
1.1.2
Principles of safety integration
Yes
Yes
1.1.3
Materials and products
Yes
Partially1)
1.1.5
Design of machinery to facilitate its handling
Yes
Yes
1.1.6
Ergonomics
Yes
Partially
2)
1.2
Control systems
Yes
Yes
1.2.1
Safety and reliability of control systems
Yes
Yes
1.2.3
Starting
Yes
Yes
1.2.6
Failure of the power supply
Yes
Yes
1.3
Protection against mechanical hazards
Yes
Yes
1.3.1
Risk of loss of stability
Yes
Yes
1.3.2
Risk of break-up during operation
Yes
Yes
1.3.4
Risks due to surfaces, edges or angles
Yes
Yes
1.3.7
Risks related to moving parts
Yes
Yes
1.3.9
Risks of uncontrolled movements
Yes
Yes
1.5
Risks due to other hazards
Yes
Yes
1.5.1
Electricity supply
Yes
Yes
1.5.6
Fire
Yes
Partially3)
1.5.8
Noise
Yes
Yes
1.5.11
External radiation
Yes
Yes
1.5.13
Emissions of hazardous materials and substances
Yes
Yes
1.5.15
Risk of slipping, tripping, or falling
Yes
Yes
1.6
Servicing
1.6.1
Machinery maintenance
Yes
Yes
1.6.2
Access to operating positions and servicing points
Yes
Partially4)
1.6.4
Operator interventions
Yes
Yes
1.7
Information
Yes
Yes
1.7.1
Information and warnings on the machinery
Yes
Yes
1.7.1.1
Information and information devices
Yes
Yes
1.7.2
Warning of residual risks
Yes
Yes
1.7.3
Marking of machinery
Yes
Yes
1.7.4
Operating instructions/assembly instructions
Yes
Yes
1.7.4.1
General principles for the drafting of operating instructions/assembly instructions
Yes
Yes
1.7.4.2
Contents of the operating instructions/assembly instructions
Yes
Yes
1.7.4.3
Sales literature
Yes
Yes
1) Not completely fulfilled: Hazards due to the lubricant used must be assessed by the operator on the basis of the Safety Data
Sheet (SDS) and, if necessary, protective measures must be taken.
2) Not completely fulfilled: The operator must ensure that the pump is integrated into the higher-level machine in such a way that
the pump can be operated and filled ergonomically.
3) Not completely fulfilled: For pumps without control, the operator must take suitable measures to ensure that the cyclic duration
factor (see Technical Data) is adhered to. Otherwise, the heat of the motor could become unacceptably high.
4) Not completely fulfilled: The operator must ensure that the pump is integrated into the higher-level machine in such a way that
the pump can be operated without danger.

4
Masthead
Manufacturer
SKF Lubrication Systems Germany GmbH
Email: Lubrication-[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]
Authorized local distributors
- Great Britain -
SKF (U.K.) Limited,
2 Canada Close, Banbury, Oxfordshire,
OX16 2RT, GBR.
- North America -
SKF Lubrication Business Unit
Lincoln Industrial
5148 North Hanley Road, St. Louis,
MO. 63134 USA
- South America -
SKF Argentina Pte. Roca 4145,
CP 2001 Rosario, Santa Fe
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
Masthead ...............................................................................................4
Table of contents..................................................................................5
Safety alerts, visual presentation, and layout.................................7
1. Safety instructions...........................................................................8
1.1 Intended use...............................................................................8
1.2 Persons authorized to use the product.................................8
1.3 General behavior when handling the product......................8
1.4 Transport, assembly, maintenance, malfunction, repair,
shutdown, disposal...........................................................................8
1.5 First start-up, daily start-up...................................................9
1.6 Foreseeable misuse ..................................................................9
1.7 Referenced documents ............................................................9
1.8 Safety markings on the product.............................................9
1.9 Note on the type plate........................................................... 10
1.10 Notes on CE marking .......................................................... 10
1.11 Note on Low Voltage Directive.......................................... 10
1.12 Note on Pressure Equipment Directive........................... 10
1.13 Note on UL mark .................................................................10
1.14 Note on ECE mark ...............................................................10
1.15 Note on UKCA marking.......................................................10
1.16 Note on EAC marking.......................................................... 10
1.17 Note on China RoHS mark................................................. 10
1.18 Prohibition of certain activities.......................................... 10
1.19 Residual risks........................................................................ 11
2. Lubricants ...................................................................................... 12
2.1 General information............................................................... 12
2.2 Material compatibility ............................................................ 12
2.3 Temperature properties........................................................ 12
2.4 Aging of lubricants .................................................................12
2.5 Avoidance of faults and hazards.......................................... 12
2.6 Solid lubricants ....................................................................... 12
3. Overview, functional description................................................ 13
3.1 Pump housing, upper part ................................................... 13
3.1.1 Electrical connections................................................ 13
3.1.2 Button for additional lubrication............................. 13
3.2 Reservoir..................................................................................14
3.2.1 Reservoir with follower plate ................................... 14
3.2.2 Reservoir without follower plate ............................. 14
3.3 Pump housing, lower part.................................................... 14
3.4 Filling hole................................................................................15
4. Technical data ............................................................................... 16
4.1 Tightening torques................................................................. 17
4.2 Hydraulic connection diagrams ........................................... 18
4.3 Type identification code ........................................................ 19
5. Delivery, returns, storage ........................................................... 21
5.1 Delivery ....................................................................................21
5.2 Return shipment.....................................................................21
5.3 Storage..................................................................................... 21
5.4 Storage temperature range ................................................. 21
5.5 Storage conditions for products filled with lubricant....... 21
5.5.1 Storage period up to 6 months............................... 21
5.5.2 Storage period between 6 and 18 months........... 21
5.5.3 Storage period more than 18 months................... 21
5.6 Declaration of decontamination .......................................... 21
6. Assembly ........................................................................................ 22
6.1 Mounting dimensions ............................................................ 22
6.2 Assembly holes .......................................................................22
6.3 Connection of the lubrication line........................................23
6.4 Electrical connection .............................................................. 23
7. First start-up................................................................................. 24
7.1 Inspections before first start-up.......................................... 24
7.2 Inspections during first start-up..........................................24
7.3 Triggering additional lubrication ......................................... 25
7.3.1 Pumps without control but with optional button for
additional lubrication............................................................25
7.3.2 Pumps without control and without optional button
for additional lubrication .....................................................25
7.4 Acknowledge receipt of a fault indication .......................... 25
8. Operation........................................................................................ 26
8.1 Filling the pump with lubricant............................................26
8.1.1 Initial filling of a pump delivered without lubricant,
with follower plate................................................................26
8.1.2 Regular filling via the fill connection....................... 26
8.1.3 Regular filling via the filler nipple............................ 27
8.1.4 Regular filling with lubrication oil via the filling hole
.................................................................................................27
8.1.5 Regular filling with fluid grease via the filling hole
.................................................................................................27
9. Maintenance and repair .............................................................. 28
9.1 Maintenance............................................................................ 28
9.2 Repairs .....................................................................................28
10. Cleaning ....................................................................................... 29
10.1 Basics .....................................................................................29
10.2 Interior cleaning ...................................................................29
10.3 Exterior cleaning ..................................................................29
10.4 Cleaning the filter of the fill connection...........................29
10.4.1 Fill connection 169-460-406............................... 29
10.4.2 Fill connection 995-997-297............................... 30
10.5 Cleaning the vent pipe ........................................................30
11. Faults, causes, and remedies................................................... 31
12. Shutdown, disposal.................................................................... 32
12.1 Temporary shutdown..........................................................32
12.2 Permanent shutdown, disassembly ................................. 32
12.3 Disposal..................................................................................32
13. Spare parts and accessories .................................................... 33
13.1 Closure screw .......................................................................33
13.2 Plug screw for CLS pumps.................................................33
13.3 Fitting, complete, for CLS pumps .....................................33
13.4 Grease port, plug-in............................................................33
13.5 Grease port, plug-in with filter.......................................... 34
13.6 Fill connection, pivoted .......................................................34
13.7 Fill connection, pivoted, with filter....................................34
13.8 Adapter with filler fitting.....................................................34
13.9 Vent pipe assy.......................................................................35
13.10 Mounting brackets.............................................................35
13.11 Power lead..........................................................................35
13.12 Filter insert, complete.......................................................36
13.13 Accessories .........................................................................36
14. Appendix ...................................................................................... 37
14.1 Connection diagrams ..........................................................37
14.2 Overview of cables and possible connections................. 37

6
14.3 CL_-__1XY/Z_-X_FX-___X-MXX(7)(7)_............................38
14.4 CL_-__1XY/Z_-X_FX-___X-M(A)(A)(7)(7)_.......................39
14.5 CL_-__1XX_-X_FX-___X-MXX(7)(7)_ ...............................40
14.6 CL_-__1XX_-X_FX-___X-M(A)(A)(4)(4)_ ..........................41
14.7 CL_-__XXY/Z_-X___-___X-MXX(7)(7)_ ............................42
14.8 CL_-__XXX_-X__X-___X-MXX(4)(4)_ ...............................43
14.9 CL_-__1XY/Z_-X_FX-___X-X(A)(A)(W)(W)_ .....................44
14.10 CL_-__1XX_-X_FX-___X-X(A)(A)(W)(W)_......................45
14.11 CL_-__XXY/Z_-X___-___X-XXX(W)(W)_ ........................46
14.12 CL_-__XXX_-X___-___X-XXX(W)(W)_............................47
14.13 CL_-__4XY/Z_-X_X_-___X-X(A)(A)(W)(W)_...................48
14.14 CL_-__4XX_-X_X_-___X-X(A)(A)(W)(W)_ ......................49
14.15 China RoHS Table..............................................................50

7
Safety alerts, visual
presentation, 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
explained below.
Safety alerts:
Activities that present specific hazards (to life and limb or
possible 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
serious 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
products, 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
illustration, 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
contents 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
numbering starts again at “1.”
–Second-order instruction steps: In some cases, it is
necessary 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 Intended use
Supply of lubricants.
The product is intended solely for installation in another
machine.
Use is only permitted within the scope of commercial or
economic activity by professional users, in compliance with the
specifications, technical data, and limits specified in this manual.
1.2 Persons authorized to use the
product
Operator
A person who is qualified by training, knowledge and experience
to carry out the functions and activities related to normal
operation. This includes avoiding possible hazards that may
arise during operation.
Specialist in mechanics
Person with appropriate professional education, knowledge and
experience to detect and avoid the hazards that may arise
during transport, installation, start-up, operation, maintenance,
repair and disassembly.
Specialist in electrics
Person with appropriate professional education, knowledge and
experience to detect and avoid the hazards that may arise from
electricity.
1.3 General behavior when handling the
product
Putting the product into operation or operating it 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. All operating instructions, safety
instructions, and in-house instructions relevant to the particular
activity must be followed. Uncertainty seriously endangers
safety. Responsibilities for different activities must be clearly
defined and observed. In addition to these instructions, the
statutory regulations for accident prevention and environmental
protection must be observed.
Any faults that could affect safety must be remedied
according to responsibility. The supervisor must be notified
immediately in case of malfunctions outside one's individual
scope of responsibility. Guards and safety devices must not be
removed, modified, nor disabled during operation and must be
checked for proper function and completeness at regular
intervals.
Unauthorized modifications and changes can have an
unpredictable effect on safety and operation. Unauthorized
modifications and changes are therefore prohibited.
Tasks in the context of repair or maintenance work may be
carried out only with the spare parts and accessories offered by
SKF for the respective product.
Any unclear points regarding proper condition or correct
assembly/operation must be clarified. Operation is prohibited
until issues have been clarified.
The painting of any plastic components, visual monitoring
devices or seals is prohibited. Completely mask or remove parts
before painting.
Electrical devices must be kept in proper condition. This must
be ensured by periodic inspections in accordance with the
relevant applicable standards and technical rules. The type,
frequency, 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
observance of the relevant regulations and the local electrical
supply conditions. The operator must implement appropriate
measures to protect 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.
1.4 Transport, assembly, maintenance,
malfunction, repair, shutdown, disposal
Prior to the start of this work, all relevant persons must be
notified 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. Other units must not be damaged or impaired in their
function by the installation work.
Avoid chafe points when installing. 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.

9
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.
Shutdown in an emergency is to be performed by measures
specified by the operator, e.g. by pressing the emergency stop
switch of the higher-level machine or by cutting off the power
supply.
In the case of electrical products, the following must also be
observed:
•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
damp 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
enclosure rating.
1.5 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
1.6 Foreseeable misuse
Any usage of the product other than as specified in this manual
is strictly prohibited. Particularly prohibited are:
•Use of non-specified consumables, contaminated lubricants,
or lubricants with air inclusions.
•Use of C3 versions in areas with aggressive, corrosive
substances (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
substances 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,
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.
•Use in an explosion protection zone.
•Use without proper securing against excessively high
pressures, in the case of pressurized products.
•Use outside of the technical data and limits specified in this
manual.
1.7 Referenced documents
In addition to this manual, the following documents must be
observed 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
centralized lubrication system.
1.8 Safety markings on the product
NOTE
Further to the findings of the workplace risk evaluation the
operating company has to attach additional markings (e. g.
warnings, signs giving orders, prohibition signs or labelling
as specified by CLP / GHS), where appropriate.

10
1.9 Note on the type plate
The type plate provides important data such as the type
designation, order number, and sometimes regulatory
characteristics. To avoid loss of this data in case the type plate
becomes illegible, it should be entered in the manual.
Fig. 1
Type plate
Fig. 2
Type plate with ECE mark
1.10 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)
1.11 Note on Low Voltage Directive
The protection objectives of the Low Voltage Directive
2014/35/EU are met in accordance with Annex I, No. 1.5.1 of
the Machinery Directive 2006/42/EC.
1.12 Note on Pressure Equipment
Directive
Due to its performance characteristics, the product does not
reach the limit values defined in Article 4, Paragraph 1,
Subparagraph (a) (ii) and is excluded from the scope of Pressure
Equipment Directive 2014/68/EU in accordance with Article 1,
Paragraph 2 Subparagraph (f).
1.13 Note on UL mark
The UL Mark certifies that the product has UL
certification of compliance with U.S. and Canadian
safety regulations.
1.14 Note on ECE mark
The ECE test mark (E1) confirms that an ECE
type approval (components requiring approval on
motor vehicles) has been granted for a product
which bears this mark on its type plate.
1.15 Note on UKCA marking
The UKCA conformity marking confirms the
product’s conformity with the applicable legal
provisions of Great Britain.
1.16 Note on EAC marking
The EAC conformity marking confirms the
product’s conformity with the applicable legal
provisions of the Eurasian customs union.
1.17 Note on China RoHS mark
The China RoHS mark confirms that there is no
danger to persons or the environment from the
regulated substances contained within for the
intended period of use (year number shown in the
circle).
1.18 Prohibition of certain activities
•Repairs or modifications to the drive

11
1.19 Residual risks
Table 2
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. Nobody is
allowed to be present below 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. Mount the product
only on 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.
Personal injury, property damage due
to spilled, leaked lubricant.
B
C
D
F
G
H
K
Be careful when connecting or disconnecting the
lubricant lines. Use only hydraulic screw unions and
lubrication lines suitable for the specified pressure. Do
not mount lubrication lines on moving parts or chafe
points. If this cannot be avoided, use anti-kink coils
and/or conduits.
Fire hazard or damage to the pump
from operation with damaged electrical
components, such as power leads and
plugs.
B
C
D
E
F
G
H
Inspect electrical components for damage prior to
initial use and then at regular intervals. Do not install
the cable on moving parts or chafe points. If this cannot
be avoided, use anti-kink coils and/or conduits.
Damage to the pump from failure to
comply with the permissible relative
ON-time.
C
D
Operate the pump only within the permissible relative
ON-time.
Damage to the pump from installing at
the place of use without the mounting
brackets and fastening hardware
intended for that purpose (see
Installation chapter).
B
C
D
G
Install the pump only with the mounting brackets and
fastening hardware intended for that purpose.
Lifecycle phases: A = Transport, B = Assembly, C = First start-up, D = Operation, E = Cleaning, F = Maintenance, G = Malfunction, repair, H
= Shutdown, K = Disposal

12
2. Lubricants
2.1 General information
Lubricants are selected specifically for the relevant application.
The manufacturer or operator of the machine should ideally
make the selection in consultation with the supplier of the
lubricant. If you have no or little experience in selecting
lubricants for lubrication systems, please contact us. We would
be happy to assist you in selecting suitable lubricants and
components to build a lubrication system optimized for your
particular application. Consider the following points when
selecting/using lubricants. This will spare you potential
downtime and damage to the machine or lubrication system.
2.2 Material compatibility
The lubricants must generally be compatible with the following
materials:
•Plastics: ABS, CR, FPM, NBR, NR, PA, PET, PMMA, POM, PP,
PS, PTFE, PU, PUR
•Metals: steel, gray cast iron, brass, copper, aluminum
2.3 Temperature properties
The lubricant used must be suitable for the specific ambient
temperature of the product. The viscosity approved for proper
functioning must neither be exceeded at low temperatures nor
fall too low at high temperatures. For the approved viscosity,
see the “Technical data” chapter.
2.4 Aging of lubricants
Based on past experience with the lubricant used, checks should
be conducted at regular intervals defined by the operator, to
determine whether the lubricant needs to be replaced due to
aging processes (oil separation). In case of doubt regarding the
continued suitability of the lubricant, it must be replaced before
the system is started up again. If you do not yet have any
experience with the lubricant used, we recommend conducting
a check after just one week.
2.5 Avoidance of faults and hazards
To avoid faults and hazards, please observe the following:
•When handling lubricants, observe the relevant safety data
sheet (SDS) and any hazard labeling on the packaging.
•Due to the large number of additives, some lubricants that
meet the pumpability requirements specified in the manual
are not suitable for use in centralized lubrication systems.
•Whenever possible, always use SKF lubrication greases. They
are ideal for use in lubrication systems.
•Do not mix lubricants. This can have unpredictable effects on
the properties and usability of the lubricant.
•Use lubricants containing solid lubricants only after technical
consultation with SKF.
• The lubricant’s ignition temperature has to be at least
50 kelvin above the maximum surface temperature of the
components.
2.6 Solid lubricants
Solid lubricants may only be used after prior consultation with
SKF. When solid lubricants are used in lubrication systems, the
following rules generally apply:
Graphite:
•Maximum graphite content 8%
•Maximum grain size 25 µm (preferably in lamellar form)
MoS2:
•Maximum MoS2 content 5%
•Maximum grain size 15 µm
Copper:
•Lubricants containing copper are known to lead to coatings
forming on pistons, bore holes, and mating surfaces. This can
result in blockages in the centralized lubrication system.
Calcium carbonate:
•Lubricants containing calcium carbonate are known to lead to
very heavy wear on pistons, bore holes, and mating surfaces.
Calcium hydroxide:
•Lubricants containing calcium hydroxide are known to harden
considerably over time, which can lead to failure of the
centralized lubrication system.
PTFE, zinc, and aluminum:
•For these solid lubricants, it is not yet possible to define any
limit values for use in lubrication systems on the basis of
existing knowledge and practical experience.

13
3. Overview, functional
description
In the following you will find an overview of the most important
functions and equipment features of the pump described in this
manual. The pump essentially consists of 3 modules:
•The upper part of the pump housing (12 or 12a) with or
without filling hole (8)
•The reservoir (1) with or without follower plate (2)
•The lower part of the pump housing (13)
Fig. 3
CLS pump, front view
Fig. 4
CLS pump with flat upper part on pump housing, front view
3.1 Pump housing, upper part
The upper part of the pump housing (12) contains:
•The electrical connections
•Possibly a button to trigger an additional lubrication
•Possibly a filling hole for filling from above
Pump housing, flat upper part
The pump housing with flat upper part (12a) is standard on
pumps without a M12 plug.
3.1.1 Electrical connections
The electrical connections (10.1 to 10.4) are used for the power
supply and for signals and communications. The following
electrical connections are possible depending on the exact
version of the pump.
Fig. 5
Electrical connections
Table 3
Possible positions of the electrical connections
<Conte nt>
Top left (10.1) or top right (10.3)
M12x1 plug, 4
-pin,
A
-coded
DIN EN ISO
61076-2-101
Bottom left (10.2) or bottom right (10.4)
600
Bayonet connector, 4
-pin
A
-coded
ISO 15170
-1
Bayonet connector, 7
-pin
A
-coded
ISO 15170
-1
Rectangular connector 3 +
PE
DIN EN 175301
-803
3.1.2 Button for additional lubrication
On pumps without control, there can optionally be a button (14)
on the right or the left of the upper part of the pump housing, to
trigger an additional lubrication. An additional lubrication can be
triggered only during the pump’s interval time. The additional
lubrication continues as long as the button is pressed.

14
Fig. 6
Button for additional lubrication
3.2 Reservoir
The reservoir (1) stores the lubricant. The reservoir ventilation
(3) aerates the reservoir while the pump is running and
supplying lubricant, and bleeds the reservoir while the pump is
being filled with lubricant from below. When filling is done from
above, the reservoir is aerated primarily through the open filling
hole (8). The MAX marking must not be exceeded when the
reservoir is being filled with lubricant. As a rule, the lubricant
level must not fall below the MIN marking during pump
operation.
<
NOTICE
Damage to the main machine from pump
failure due to empty reservoir
Take care to ensure that the lubricant level does
not fall below the MIN marking during pump
operation.
Different variants of the pump come with different reservoir
designs:
3.2.1 Reservoir with follower plate
The follower plate (2) lies on top of the lubricant and presses it
with spring force in the direction of the gear pump in the lower
part of the pump. Its pressure improves the suction
characteristics of the pump. On pumps with follower plate, the
low-level warning is issued by a magnet in the follower plate
which triggers a low-level signal when it reaches the reed
contact in the contact rod (11).
Fig. 7
CLS pump, front view, reservoir with follower plate
3.2.2 Reservoir without follower plate
On pumps without a follower plate, the low-level warning is
issued by a level sensor (15) located inside the reservoir, on the
right-hand side.
Fig. 8
CLS pump, front view, reservoir without follower plate
3.3 Pump housing, lower part
Gear pump
The gear pump in the lower part of the pump housing can be
operated with up to 2 outlets (5). If an outlet is not needed, it
can be sealed off with a plug screw (6), or alternatively the
pivoted fill connection 995-997-297 can be used in this
position. The gear pump is equipped with an internal pressure
limiting valve to safeguard it against excessive pressure.
Fill connection
In position (A), the pump could have a grease fitting or one of
the fill connections described in these instructions, depending
on the specific pump type. The pivoted fill connection 995-997-
297 can also be mounted in one of the outlets (5) on the left or
the right.

15
3.4 Filling hole
The filling hole (8) is situated over the filling port (8.1) for filling
with clean lubricant. On pumps for lubrication oil, the filling port
(8.1) contains a filter insert (8.2). The filter insert (8.2) must be
checked regularly for clogging and replaced if needed. After
filling, close the filling hole (8) again completely (you should hear
it lock shut).
Fig. 9
Filling hole open

16
4. Technical data
Table 4
General technical data
Operating pressure
Max. 38 bar
Mounting position
2)
Vertical
Relief pressure
0.5 bar
Sound pressure level
< 70 dB (A)
Ambient temperature1)
-25 °C to 65 °C
Weight (empty)
Approx. 5 kg
Pump type
Gear pump
Outlets
2 (equal priority)
Reservoir capacity
3)
1 liter nominal
Feedable lubricants
Lubrication oils with 20–1500 mm2/s, fluid greases NLGI 00–000
Purity level of lubrication oils
Code 19/17/14 acc. to ISO 4406:1999 or class 8 acc. to NAS 1638
Filling
Filling hole at top of reservoir
Filler nipple / filler coupling
Nominal delivery rate4)
50 cm3/min)
Electrical data
24 VDC pump
Rated voltage
24 VDC ± 25 %
Current input, max.
3 A
Rated current
0.6 A
Rated capacity
5.7 W
Recommended back-up fuse
3.0 A (slow)
Nominal speed (motor output)
750 rpm
Cyclic duration factor (IEC 60034
-1:2017)
S3 duty: 15 % duty cycle over 15 minutes
max. operating time 2.5 minutes / min. pause time 15 minutes
Enclosure ratings5)
Pumps with filling hole
IP 54
Pumps with rectangular connector
IP 65 (IEC 60529)
>
Pumps with M12 connector
IP 67 (IEC 60529)
Pumps with bayonet connector
IP69K (ISO 20653)
Switching capacity, max.
5 W / 5 VA
Switching voltage of low-level signal
10-30 V AC/DC
Switched current, max.
500 mA
Protection class of nominal voltage connection (IEC 61140)
Protection class of signal line connection (IEC 61140)
1) The lower limit for the permissible ambient temperature is contingent on the pumpability of the lubricants used.
2) Upright, as shown in the instruction manual, meaning the reservoir is at the top.
3) About 1.2 liters of lubricant are required to fill a pump that was delivered empty.
4) With back pressure of 5 bar and viscosity of 90 mm2/s.
5) The specified enclosure rating is contingent on the use of appropriate connection sockets and cables, and on proper connection. The
enclosure rating of the pump depends on its configuration: it is the lowest enclosure rating out of all the components used.

17
4.1 Tightening torques
Fig. 10
Table 5
Tightening torques for CLS pump
Item
Number
Name
Torque
A
/
Pump at the place of use
10 Nm ± 1.0 Nm
7.40 ft.lb. ± 0.74 ft.lb.
B
1
Grease fitting in adapter M 22 x 1.5
10 Nm ± 1.0 Nm
7.40 ft.lb. ± 0.74 ft.lb.
2
Adapter in housing M 22 x 1.5
20 Nm ± 2.0 Nm
14.43 ft.lb. ± 1.5 ft.lb
3
Plug screw for fill connection M 22 x 1.5
10 Nm ± 1.0 Nm
7.40 ft.lb. ± 0.74 ft.lb.
4
Optional fill connection, pivoted
20 Nm ± 2.0 Nm
14.43 ft.lb. ± 1.5 ft.lb.
6
Fitting in housing M 22 x 1.5
20 Nm ± 2.0 Nm
14.43 ft.lb. ± 1.5 ft.lb.
7
Plug screw in fitting M 16 x 1.5
10 Nm ± 1.0 Nm
7.40 ft.lb. ± 0.74 ft.lb.
C
1
Grease fitting in adapter M 22 x 1.5
10 Nm ± 1.0 Nm
7.40 ft.lb. ± 0.74 ft.lb.
2
Adapter in housing M 22 x 1.5
20 Nm ± 2.0 Nm
14.43 ft.lb. ± 1.5 ft.lb
3
Plug screw for fill connection M 22 x 1.5
10 Nm ± 1.0 Nm
7.40 ft.lb. ± 0.74 ft.lb.
4
Optional fill connection, pivoted
20 Nm ± 2.0 Nm
14.43 ft.lb. ± 1.5 ft.lb.
5
Optional fill connection
20 Nm ± 2.0 Nm
14.43 ft.lb. ± 1.5 ft.lb.
Not shown: center screw of the rectangular connector on pumps with rectangular
connector
0.5 Nm
0.37 ft.lb.
NOTE
For pumps with an optional fill connection 169-460-406 or optional fill connection 995-997-297, the tightening torques in the
section “Cleaning the filter of the fill connection” must also be adhered to.

18
4.2 Hydraulic connection diagrams
Fig. 11
Pumps with follower plate, without low-level signal
Pumps with follower plate and low-level signal
Fig. 12
Pump without follower plate and without low-level signal
Pump without follower plate and with low-level signal
Fig. 13
Pump with filling from above and without low-level signal
Pump with filling from above and with low-level signal
Table 6
Hydraulic connection diagram acc. to ISO 1219-1:2019-01
1 = Pump
6 = Low-level signal
2 = Motor
7 = Filling from above*
3 = Pressure limiting valve
8 = Filler nipple / fill connection *
Dr
4 = Pressure-relief valve
P = Pressure line
5 = Follower plate
* With filter in the case of oil applications, without filter in the case of fluid grease
applications

19
4.3 Type identification code
PUMP
-
CLS
-
X
2
-
X
3
-
X
-
Type
CLS pump
Conformity
X: = CE
E: = CE + ECE (E1) mark
Pumpable lubricants
U: Lubrication oil
F: Fluid grease up to and including NLGI
00
Low-level signal
X: Without
1: With low-level signal*
4: With pre-warning for low-level signal**
Control element
X: Without button for additional lubrication
Y: With button for additional lubrication, right
Z: With button for additional lubrication, left
Power supply
2: 24 VDC
Corrosion protection class
3: C3 (not selectable)
Follower plate
X: Without follower plate
F: With follower plate
Filling from above
X: No filling from above
F: With filling from above
Fill connection / outlet: left, center, right
See Table 7
Table 7
Fill connection / outlet
Code
Outlet
Item
Left
Center
Right
S
Filler nipple
/
YES
/
M
Fill connection, plug-in (with or without filter)***
/
YES
/
F
Fill connection, plug-in and swivel-mounted (with or without
filter)***
YES
YES
YES
Z
Closed with plug screw#
YES (outlet)
YES
YES (outlet)
(M16x1.5)
(M22x1.5)
(M16x1.5)
* (Signal sent by reed contact on pumps with follower plate)
* (Signal sent by capacitive sensor on pumps without follower plate)
*** Item number 169-460-406 with filter (for oil applications), item number 995-000-870 without filter (for fluid grease applications)
**** Item number 995-997-297 with filter (for oil applications), item number 5590-00000026 without filter (for fluid grease
applications)
# At least one outlet must be connected during operation
Plug screw for right or left outlet: item number 995-001-854 (M16 x 1.5)
Plug screw for center inlet: item number 519-60445-1 (M22 x 1.5)

20
PUMP
-
CLS
-
X
2
-
X
3
-
X
-
Application
X: Industrial applications
M: Mobile applications
Electrical connection on upper part of pump housing
See Table 8
Top right
Top left
Bottom right
Bottom left
Lubricant
See Table 9
Table 8
Electrical connections on upper part of pump housing
Top right / top left
Bottom left / bottom right
Code
Connection
Code
Connection
X
No connection
X
No connection
A
M12 connector (4-pin, A-coded)
4
Bayonet connector (4-pin)
7
Bayonet connector (7-pin)
W
Rectangular connector (3+PE)
NOTE
The electrical connection of the pump is located on the upper part of the pump housing, on the right or the left. See also section 3.1 .
Table 9
Lubricants
Code
Lubricant
XX
Without lubricant
FT
Fluid grease Fuchs Plantogel ECO 00S or 000 S
RA
Special fluid grease