SKF PEP User manual

Installation and operation manual
Electromagnetic pump PEP
Date of issue May 2021
Form number 951-130-403-1
Read manual prior to installation or use of
this product. Keep manual nearby for future
reference.

Imprint
This manual – containing installation, ope-
ration and maintenance instructions com-
plies with EC-Machinery Directive //
EC and is an integral part of the described
lubrication system. It must be kept for future
use.
This manual – containing installation,
operation and maintenance instructions was
created in accordance with the valid stan-
dards and regulations on documentation.
© SKF
This documentation is protected by copy-
right. All rights reserved. The photomecha-
nical reproduction, copying, and distribution
of this documentation or parts thereof by
means of processes such as data processing,
data carriers, and data networks is strictly
prohibited without the express permission of
SKF.
Subject to editorial or technical
modifications.
Manufacturer
SKF France SAS
, bld Charles de Gaulle, B.P. 
 St-Cyr-sur-Loire, FRANCE
Service
For all technical questions, please contact:
SKF Lubrication Systems Germany GmbH
E-mail : [e-mail]
Berlin Plant
Motzener Strasse /
 Berlin
Germany
Tel. + () -
Fax + () -
Walldorf Plant
Heinrich-Hertz-Strasse -
 Walldorf
Germany
Tel. + ()  -
Fax + ()  -
Or an SKF Service Centre, the addresses
of which are given on our website:
www.skf.com/lubrication


Contents
Imprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Authorized personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Danger relating to electric current . . . . . . . . . . . . . . . . . . 
. Danger relating to system pressure . . . . . . . . . . . . . . . . . . 
. Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Lubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Approved lubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Selection of lubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Lubricants and the environment . . . . . . . . . . . . . . . . . . . . 
. Danger relating to lubricants . . . . . . . . . . . . . . . . . . . . . . . 
. Design and function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Versions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Positioning and installation . . . . . . . . . . . . . . . . . . . . . . . . 
. Hydraulic connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Electric connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Transport, delivery and storage . . . . . . . . . . . . . . . . . . . . . . . . 
. Transport. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Activation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Bleeding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Adjusting the flow rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Temporary shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Permanent shutdown. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 


Information concerning the EC Declaration of Incorporation
EC Declaration of Incorporation
in accordance with EC-Machinery Directive 2006/42/EC, Appendix II Part B
The manufacturer SKF France SAS, , Bld Charles de Gaulle, B.P.  –  St-Cyr-sur-Loire – FRANCE, declares herewith the confor-
mity of the partly completed machine
Designation: Electromagnetic pump
Type: PE
Order No.: see ID plate
Year of construction: see ID plate
with the following essential health and safety requirements of the EC Machinery Directive //EC when released on the market.
.. · . · .. · .. · .. · ..· .. · .. · .. · .. · .. · ..
The relevant technical documentation is compiled in accordance with part B of Annex VII of this Directive. We undertake to transmit in electro-
nic format the relevant technical documentation in response to a reasoned request by the competent national authorities. The person
empowered to draw up the declaration is the technical standards manager. See the manufacturer's address.


Guillaume Amilien
R&D Manager
SKF France
Lubrication Business Unit
Gérard Gaudin
Production unit manager
SKF France
Lubrication Business Unit
Furthermore the followings directives and (harmonized) standards have been applied.
//CE RoHS II
//EU Low voltage directive
The partly completed machine must not be put into service until the final machinery into which it is to be incorporated has been declared in
conformity with the provisions of the EC Machinery Directive //EC and other relevant Directives.
St Cyr-sur-Loire, January th, 


General
Meaning of symbols and
corresponding information
In this manual, the symbols and safety wor-
dings shown on this page are intended to
communicate a particular risk to persons,
material assets, or the environment.
All safety instructions must be respected
by person exposed to these risks. The safety
instructions must be communicated to all
other persons.
Instructions attached directly to the
equipment, such as
• rotational direction arrows
• fluid connection labels, etc.
must be respected and remain perfectly
legible.
It is essential to read these instructions
thoroughly and to respect the safety instruc-
tions given.


1. Safety
instructions
The described product was manufactured in
accordance with all generally acknowledged
regulations pertaining to technology, occu-
pational safety, and accident prevention.
However, dangers that can cause physical
injury to persons or damage to other mate-
rial assets might still occur during the use of
the product.
NOTE
These instructions must be read and
understood by all persons who are involved
with the installation, operation, maintenance,
and repair of the product. These instructions
must be kept close to the equipment for
future reference.
Note that these installation instructions is
an integral part of the product. It must be
handed over to the new operator of the pro-
duct if the product is sold.
In addition to the information provided in
the installation instructions, all generally
applicable regulations on accident prevention
and the environment must be observed.
1.1 Intended use
Electromagnetic pumps PE serve to supply
lubricant to centralized lubrication systems.
Other use or use beyond this purpose is
considered unintended.
Products of SKF must not be used in
conjunction with substances and mixtures
classified as hazardous by the Annex I part
- of the CLP regulation (EC /),
and identified with hazard pictograms
GHS-GHS and GHS.
None of the products manufactured by
SKF can be used in conjunction with gases,
liquefied gases, pressurized gases in solution
and fluids with a vapor pressure exceeding
normal atmospheric pressure ( mbar)
by more than . bar at their maximum per-
missible temperature.
Unless otherwise noted, products of SKF
must not be used in conjunction with explo-
sive atmospheres according to the ATEX-Di-
rective //EU.


NOTE
All SKF products may be used strictly respec-
ting the instructions described in this bro-
chure or the operating instructions.
1.2 Authorized
personnel
The products described in the installation
instructions may only be installed, operated,
maintained, and repaired by qualified
experts. Qualified experts are persons who
have been trained, instructed, and familia-
rized with the end product into which the
described product is installed.
These persons are considered capable of
such tasks due to their education, training,
and experience with valid standards, condi-
tions, accident prevention regulations in
effect, and installation conditions. They
should be able to carry out the required
tasks and to recognize – and thus avoid – any
dangers that might otherwise occur.
A definition of what constitutes a qualified
person and who are unqualified persons are
stipulated in DIN VDE  and IEC .
1.3 Danger relating
to electric current
The electrical connection for the described
product may only be established by qualified,
instructed persons who have been autho-
rized by the operator or owner to carry out
this task. If the product is improperly
connected, substantial material or personal
damage my be the consequence.
1.4 Danger relating
to system pressure
CAUTION!
Working on products that have not been
disconnected from the power supply can
cause serious injury or death to persons.
Installation, maintenance, and repair work
may only be carried out by qualified experts
on products that have been disconnected
from the power supply. The supply voltage
must be turned off before any product com-
ponents are opened.
CAUTION!
Centralized lubrication systems are under
pressure when they are being operated. Such
systems must therefore be depressurized
before starting installation, maintenance, or
repair work and before making any changes
to the system.


1.5 Warranty
The instructions do not contain any informa-
tion on the warranty. This can be found in
the General Conditions of Sales, which are
available at: www.skf.com/lubrication.
2. Lubricants
2.1 General
NOTE
All SKF products must only be used for their
intended purpose and in accordance with the
specifications of the installation instructions
for the product in question.
The intended use of this product is for the
centralized lubrication/lubrication of bea-
rings and wear points with lubricants. All
physical limitations of use stipulated in the
documentation of the product such as the
owner’s manual, technical drawings and
catalogs must be observed.
More specifically, we call your attention to
the fact that substances and mixtures classi-
fied as hazardous by the Annex I part - of
the CLP regulation (EC /), and
identified with hazard pictograms GHS-
GHS and GHS, can only be used to feed
the SKF centralized lubrication systems,
transported or distributed by these systems
after consultation with SKF and obtaining
written permission.
All products manufactured by SKF are not
approved for use in conjunction with gases,
liquefied gases, pressurized gases in solution
and fluids with a vapor pressure exceeding
normal atmospheric pressure ( mbars)
by more than , bar at their maximum per-
missible temperature.
Should there be a need to use the product
to convey media other than lubricants or
hazardous substances, this must be dis-
cussed with SKF first and the company must
give express written permission.
In the opinion of SKF, lubricants constitute
a design element that must be considered
when selecting components and designing
centralized lubrication systems.The lubrica-
tion properties of the lubricants in question
must be considered.


NOTE
You must observe the machinery manufac-
turer's information on the lubricants to be
used in the machinery.
NOTE
The manufacturer of the bearing or
machinery to be lubricated will specify the
lubricant requirements for each point to be
lubricated. You must make sure that the
required quantity of lubricant is provided to
the relevant lubricating point. If a lubricating
point is insufficiently lubricated, the bearing
may become damaged or jammed.
While the machinery/bearing manufacturer
usually specifies lubricants, it is the owner/
operator (or maintenance person) who must
finally select the appropriate lubricant, with
the help of the lubricant supplier. When
selecting a lubricant, the type of bearing/
wear point, the stresses and strains to be
expected during operation, and anticipated
ambient conditions must be taken into
Note
If required, SKF can help customers to
select suitable components for the
conveyance of the selected lubricant and to
plan and design their centralized lubrication
system.
!
If you have further questions, you can
contact SKF.
We can test lubricants in our own labora-
tory to establish their suitability for
CAUTION!
Only lubricants that have been approved by
SKF for use with the product may be used.
Unsuitable lubricants can cause product
malfunctions and damage to property.
2.2 Selection of
lubricants
account. All financial/economic aspects must
also be considered.
NOTE
If an electromagnetic pump unit is not listed
in table , please refer to the delivered tech-
nical sheet to know the specific technical data
of the electromagnetic pump.
conveyance (e.g. 'oil separation' behavior) in
centralized lubrication systems.
You can request an overview of lubricant
tests offered by SKF from our Service Center.
2.3 Approved
lubricants


CAUTION!
Different lubricants must not be mixed
together. Doing so can cause damage and
require extensive cleaning of the products/
centralized lubrication system. To prevent
confusion, we recommend that you attach
information indicating the lubricant to be
used on the lubricant reservoir.
The described product can be operated with
lubricants that comply with the specifications
in the technical data.
Note that some lubricants may have pro-
perties that lie within the permitted limit
values and yet not be suitable for use in cen-
tralized lubrication systems for other rea-
sons. For example, some synthetic lubricants
are not compatible with elastomers.
WARNING!
Lubricants can pollute the soil and water.
Lubricants must be used and disposed of in
compliance with the rules. Instructions and
local regulations must be observed when
handling lubricants.
Note that lubricants are harmful to the envi-
ronment and flammable; their transporta-
tion, storage, and processing are subject to
special precautionary measures. For specifi-
cations on transportation, storage, proces-
sing, and dangers to the use and the envi-
ronment for the lubricant, refer to the
material safety data sheet provided by or
available from the lubricant manufacturer.
You can ask the manufacturer of the lubri-
cant for the material safety data sheet.
Leaking centralized lubrication systems or
components of the lubrication equipment
are a source of danger in relation to slip
hazard and the risk of injury. These dan-
gers can cause physical injury to persons
or damage to other material assets.
Refer to safety precautions in the lubri-
cant manufacturer's material safety data
sheet.
2.4 Lubricants and
the environment
2.5 Danger relating
to lubricants
CAUTION!
Centralized lubrication systems must be
absolutely leak-free. Leaking centralized
lubrication systems can cause a slip hazard.
When performing installation, maintenance,
and repairs test the centralized lubrication
system for leaks. Leaky parts of the central-
ized lubrication system or components of the
lubrication equipment have to be sealed
immediately.


Lubricants are hazardous substance. It is
essential to respect any safety instructions
given in the lubricant safety data sheet. You
can ask the manufacturer of the lubricant for
the material safety data sheet.
3. Design and
function
3.1 Versions
Electromagnetic pumps PEP are available
in different designs. They differ in the
number of outlets as well as in the flow rate
per stroke.
The electromagnetic pumps PEP are
delivered with three plungers correspond-
ing to the flow rates. One of the plunger is
mounted into the pump (flow rate indicated
in the order No.). The two other plungers
are separately delivered.
How your electromagnetic pump is
equipped is indicated on the nameplate and
delivery papers. The adjacent table explains
the type key.
NOTE
If an electromagnetic pump unit is not listed
in table , please refer to the delivered tech-
nical sheet to know the specific technical data
of the electromagnetic pump.


Table 2
PEP electromagnetic pump codification system
Order No. PEP - 2 - 20 + 924
Number of outlets
1=  lubricant outlet
2=  lubricant outlets
3=  lubricant outlets
Flow rate stroke/outlet
20 =  mm
40 =  mm
60 =  mm
Voltage key
924 =  V DC


3.2 Description
The electromagnetic pump PEP consists
of a housing-mounting flange, an electric
connector (to be ordered separately) and
an electromagnet (swiveling by –90°, 0°,
+90°) that acts on the plunger. In the case
of the pump PEP-1, the plunger pushes the
pumping piston, which is centered in the
pump housing. With the pumps PEP-2 and
PEP-3, the plunger pushes the pumping
pistons by means of a barrel centered in the
pump housing. A return spring pulls each
piston back into its initial position.
The PEP pump can supply 1, 2 or 3 outlet
ports. Each outlet port is equipped with a
check valve.
Oil is fed directly from the gravity reser-
voir into the intake chamber. The pump is
vented by an opening.
Power (direct current) is supplied to the
pump via a swiveling connector.
The pump can be operated by hand at any
time or when there is a power failure.


1
2
5
9
8
3
46
7
Fig. 1
Electromagnetic pump PEP
1 Fixing holes (× 2)
2 Lubricant inlet
3 Outlet ports
4 Lubricant inlet
5 Bleed opening
6 Pump housing
7 Electromagnet
8 Manual control
9 Electrical connection


Ø2,5 × 418,21753744 PG9
535
9,7×2 Ø5,5
4522,5
45(76)
21,54578012
PEP-2-...(9)PEP-1-...X’XFig. 2
PEP dimensions


3.3 Function
When the electromagnet of the pump is
switched on the barrel moves all the pistons
towards and a minimal quantity of lubricant
is delivered passing the check valves to the
lubrication lines connected to the outlet
ports. The lubricant flows to lubricating bru-
shes connected at the end of the lubrication
line.
When the electromagnet is switched off,
return springs bring the pistons back to their
initial position and suck lubricant from the
intake chamber.
The electromagnetic pump PEP has a
maximal working frequency of  strokes /
second and a duty ratio of %. OILP3P2P1PFig. 3
Function principle of the PEP


4. Installation
instructions
The product described in the mounting
instructions may only be installed, ope-
rated, maintained, and repaired by quali-
fied experts. Qualified personnel are per-
sons who have been trained, instructed,
and familiarized by the user of the end
product into which the system is installed.
These persons are considered capable of
such tasks due to their education, training,
and experience with valid standards,
conditions, accident prevention regula-
tions in effect, and installation conditions.
They should be able to carry out the
required tasks and to recognize – and thus
avoid – any dangers that might otherwise
occur.
A definition of what constitutes a quali-
fied person and who are unqualified per-
sons are stipulated in DIN VDE  and
IEC .
Before installing/positioning the pro-
duct, remove the packaging material and
any transportation safety devices such as
sealing plugs. Keep the packaging material
Country-specific accident prevention regula-
tions and the operating and maintenance
instructions for the operator must be obser-
ved when carrying out all installation work
on machines.
4.1 Positioning and
installation
The pump must be mounted in a way that
protects it from humidity and vibrations. It
should also be easily accessible so that all
other installation work can be carried out
without hindrance. Ensure that there is suffi-
cient circulating air to prevent the system
from overheating. For information on the
maximum admissible ambient temperature,
see the technical data section.
•
• The XX' main axis of the electromagnetic
pump has to be always horizontal.
• The reservoir is located above the pump
(gravity) to get a lubricant inlet pressure
between . and . bar.
• Distance between the reservoir and the
lubricant inlet port  m max.
• Lubricant supply with steel or polyamide
tube, inner diameter .
• The vent opening has to be at the highest
point.
The electromagnetic pump PEP is fixed with
two M × screws, distance between the
holes  mm.
CAUTION!
The electromagnetic pump must not not be
tilted or dropped.
until any and all problems have been
clarified.


CAUTION!
The electromagnetic pump must be firmly
attached to the support plate to prevent any
accidental fall. If the pump falls it could be
damaged or cause damage and can also
injure an operator or another person.
WARNING!
The supply voltage on site must agree with
the information on the nameplate. Check the
fusing of the circuit. Use only the original fuse
with the required ampere value. If other
fuses are used, damage to property of perso-
nal injury may be the consequence.
CAUTION!
When drilling installation holes always pay
attention to any supply lines or other units as
well as further sources of dangers such as
moving parts.
4.2 Hydraulic
connection
4.2.1 Lubricant inlet
The lubricant reservoir must be above (gra-
vity) the electromagnetic pump. The inlet
pressure is between , and , bar.
The tube (steel or polyamide) Ø ×, is
connected to the inlet port G / according to
NF E - with a maximal depth of 
mm.
CAUTION!
The maximum inlet pressure specified for
operating the electromagnetic pump must
not be exceeded.
4.2.2 Lubricant outlet
Coming out the electromagnetic pump the
lubricant is directed either to projection
nozzles or to lubricating brushes.
Connection of tubing to outlet ports M
× according to NFR -.
•
• Oiling brushes: metallic or polyamide tube
Ø  x ,
For the oiling brushes the tubing len-
gth between the pump and the bru-
shes must not exceed  m. Avoid
using any connectors, banjo fittings or others
on the line.
!


4.3 Electric
connection
WARNING!
Only qualified, instructed specialists who are
authorized by the operator may install the
electrical connections for the electromagne-
tic pump. The connection conditions and the
local regulations (e.g. DIN, VDE, NF) must be
scrupulously respected. If the electromagne-
tic pump is improperly connected, substantial
material or personal damage my be the
consequence.
The electromagnetic pump connector has
four wires (  poles and  ground). 12(3)12(3)Wiring diagram for  V DC pump without
integrated bridge rectifier and with LED
