SKF FB User manual

EN
FB/FB-ATEX
Multiline pump units
Assembly instructions acc. to EC Dir. 2006/42/EC for
partly completed machinery with associated operating instructions
Operating instructions acc. to Dir. 2014/34/EC, Annex X
Version 04

Page 2
EN
Multiline pump units FB; FB ATEX
Notes
Masthead
These assembly instructions with associated
operating instructions according to EC
Machinery Directive 2006/42/EC are an inte-
gral part of the described product and must
be kept for future use.
These assembly instructions with associated
operating instructions have been prepared in
accordance with the established standards and
rules for technical documentation, VDI 4500
and EN 292.
© SKF Lubrication Systems Germany GmbH
This documentation is protected by copyright.
SKF Lubrication Systems Germany GmbH re-
serves all rights, including those to the photo-
mechanical reproduction, duplication, and
distribution by means of special procedures
(e.g., data processing, data media, and data
networks) of this documentation in whole or
in part.
Subject to changes in contents and technical
information.
Service
If you have technical questions, please contact
the following addresses:
SKF Lubrication Systems Germany GmbH
Berlin Plant
Motzener Straße 35/37
12277 Berlin
Germany
Tel. [phone]
Fax [phone]
www.skf.com/lubrication
Hockenheim Plant
2. Industriestraße 4
68766 Hockenheim
Germany
Tel. [phone]
Fax [phone]
www.skf.com/lubrication

Page 3 EN
Table of contents
Table of contents
Assembly instructions
Information concerning EC Declaration of
Conformity and EC Declaration of Incorporation 4
Explanation of safety and informational symbols
and safety signal words 5
1. Safety instructions 7
1.1 Intended use 7
1.2 Authorized personnel 7
1.3 Electric shock hazard 8
1.4 System pressure hazard 8
1.5 Hydraulic pressure hazard 8
1.6 Explosion protection information 9
2. Lubricants 10
2.1 General information 10
2.2 Selection of lubricants 10
2.3 Approved lubricants 11
2.4 Lubricants and the environment 11
2.5 Lubricant hazards 12
3. Overview 13
4. Assembly 14
4.1 Setup and attachment 14
4.1.1 Assembly of the pumps FB
and FB in ATEX design 14
4.2 Port dimensions
4.2.1 Assembly drawing for FB/FB-ATEX 16
4.3 Electrical motor connection 18
4.3.1 FB motor ratings 19
4.3.2 FB-ATEX motor ratings 19
4.3.3 Assembly of the electric fill level
switches 20
4.3.3 FB-ATEX Assembly of the electric
fill level switches 21
4.3.5 Attaching ground connection to
FB-ATEX 22
4.4 Lubrication line connection 23
4.4.1 Assembly of the lubrication lines 23
4.5 Lubrication line arrangement 24
4.6 Note on the rating plate 25
Operating instructions
1. Safety instructions 28
2. Lubricants 28
3. Transport, delivery, and storage 29
3.1 Lubrication units 29
3.2 Electronic and electrical devices 29
3.3 General notes 29
3.4 Lifters 30
4. Assembly 31
4.1 Information on assembly 31
4.2 Assembly of FB multiline
pump units 31
4.3 Dismantling and disposal 31
5. Design and function 32
5.1 Pump operation 32
5.2 Pump element operation 33
6. Commissioning 34
6.1 Commissioning / recommissioning 34
6.2 Varying pump displacement 35
7. Shutdown and disposal 37
7.1 Temporary shutdown 37
7.2 Permanent shutdown 37
8. Maintenance 38
8.1 General information 39
8.2 Visual inspection 39
8.3 Removing a pump element 40
8.4 Installing a pump element 41
9. Malfunctions 44
9.1 Commissioning malfunctions 45
9.2 Operational malfunctions 46
9.3 Malfunctions on fill level control 48
10. Technical data 49
10.1 FB and FB-ATEX multiline
pump unit 49
11. Accessories 50
12. Spare parts 52
12.1 Spare parts list for FB multline
pump unit 52
12.2 Spare parts list for FB-ATEX
multiline pump unit 54

Page 4
EN EC Declaration of Incorporation
EC Declaration of Incorporation according to Machinery Directive 2006/42/EC, Annex II Part 1 B
The manufacturer SKF Lubrication Systems Germany GmbH Hockenheim Plant, 2. Industriestr. 4, DE - 68766 Hockenheim hereby declares that the partly
completed machinery:
Designation: FB/FB-ATEX Multiline pump units
Type: FB*
Part no.: 767-* außer 767-030-*
Year of construction: See type identification plate
complies with the following basic requirements of the EC Machinery Directive 2006/42/EC at the time when first being launched in the market.
1.1.2 · 1.1.3 · 1.3.2 · 1.3.4 · 1.5.1 · 1.5.6· 1.5.8 · 1.5.9 · 1.6.1 · 1.7.1 · 1.7.3 · 1.7.4
The special technical documents were prepared following annex VII part B of this directive. Upon justifiable request, these special technical documents can be forwarded
electronically to the respective national authorities. The person empowered to assemble the technical documentation on behalf of the
manufacturer is the head of standardization; see manufacturer‘s address.
Furthermore, the following directives and harmonized standards were applied in the respective applicable areas:
2011/65/EU RoHS II
2014/30/EU Electromagnetic compatibility | Industry
Standard Edition Standard Edition Standard Edition Standard Edition
DIN EN ISO 12100 2011 DIN EN 60947-5-1 2010 DIN EN 61000-6-2 2006 DIN EN 61000-6-4 2011
DIN EN 809 2012 DIN EN 61131-2 2008 Amendment 2011 DIN EN 60947-5-1 2010
DIN EN 60204-1 2007 Amendment 2009 DIN EN 61000-6-3 2011
Amendment 2010 DIN EN 60034-1 2015 Amendment 2012
DIN EN 50581 2013 DIN EN 61000-6-1 2007
The partly completed machinery must not be put into service until the final machinery into which it is to be incorporated has been declared in conformity with the
provisions of the EC Machinery Directive 2006/42/EC and any other applicable directives.
Hockenheim, den 17.10.2016
Jürgen Kreutzkämper
Manager R&D Germany
SKF Lubrication Business Unit
Stefan Schürmann
Manager R&D Hockenheim/Walldorf
SKF Lubrication Business Unit

Page 5 EN
Jürgen Kreutzkämper
Manager R&D Germany
SKF Lubrication Business Unit
EU Declaration of conformity following ATEX directive 2014/34/EU, annex X
The manufacturer SKF Lubrication Systems Germany GmbH Hockenheim Plant, 2. Industriestr. 4, DE - 68766 Hockenheim hereby declares that the apparatus
Designation: FB/FB-ATEX Multiline pump units
Type: FB*D4128*; FB*D4130*; FB*D4141*
Part numbers: 769-*; 767-*
Year of construction: See type identification plate
Explosion Protection Identification: II 2G c IIC T4 Gb => FB*D4128; FB*D4141 II 2D c IIIC T 125°C Db => FB*D4130
complies with the following basic safety and health requirements of ATEX directive 2014/34/EU and the safety and health requirements of machinery directive
2006/42/EC at the time when first being launched in the market.
1.1.2, 1.1.3, 1.3.2, 1.3.4, 1.5.1,·1.5.6, 1.5.8, 1.5.9, 1.6.1, 1.7.1, 1.7.3, 1.7.4
The special technical documents were prepared following:
 ATEX directive 2014/34/EU annex VIII (2) and stored at the named institute.
 Machinery directive 2006/42/EC, annex VII, part B was prepared.
We undertake to send this in electronic form to the respective authorities upon justifiable request. The authorized representative of technical documentation on behalf
of the manufacturer is the head of technical standardization. See manufacturer's address.
Furthermore, the following directives and harmonized standards were applied in the respective applicable areas:

 2011/65/EU RoHSII directive
 2014/30/EU EMC directive | Industry

Standard Edition Standard Edition Standard Edition Standard Edition
EN ISO 12100 2011 DIN EN 1127-1 2011 DIN EN 13463-1 2009 DIN EN 50581 2013
DIN EN 809 2012 DIN EN 60204-1 2007 DIN EN 13463-5 2011
The machinery must not be put into service until the final machinery into which it is to be incorporated has been declared in conformity with the previsions of
ATEX directive 2014/34/EU of machinery directive 2006/42/EC and any other applicable directives.
Hockenheim, 25/04/2016
EU Declaration of conformity
Stefan Schürmann
Manager R&D Hockenheim/Walldorf
SKF Lubrication Business Unit

Page 6
EN
Informational symbols
Indicators used with safety instructions
and their meaning
Hazard symbols
Explanation of symbols
Explanation of safety and informational symbols and safety signal words
You will find these symbols, which warn of
specific dangers to persons, material assets, or
the environment, next to all safety instructions
in these operating instructions.
Please heed these instructions and proceed
with special care in such cases. Please pass all
safety instructions to other users.
General hazard
DIN 4844-2-W000
Electrical voltage/current
Hot surface
Signal word Meaning
Danger! Danger of bodily injury
Warning! Risk of damage to property
and the environment
Note! Provides additional
information
Note
Prompts an action
Bullet list items
Points out other facts, causes, or
consequences
Provides additional information
Instructions placed directly on the machines/
grease lubrication pump unit, such as:
Arrow indicators
Labels for fluid connections
must be followed and kept in fully legible
condition.
You are responsible!
Please read the assembly and operating
instructions thoroughly and follow the safety
instructions.
Danger of being drawn into machinery
DIN 4844-2-W008
DIN 4844-2-W026
BGV 8A
Slipping hazard
DIN 4844-2-W028
Warning of potentially explosive
atmosphere
DIN 4844-2-W021

Page 7 EN
Assembly instructions
1. Safety instructions
The operator of the described product
must ensure that the assembly instruc-
tions are read and understood by all
persons assigned with the assembly,
operation, maintenance, and repair of
the product. The assembly instructions
must be kept readily available.
Note that the assembly instructions
form part of the product and must
accompany the product if sold to a new
owner.
In addition to the assembly instructions,
statutory regulations and other general
regulations for accident prevention
and environmental protection must be
observed and applied.
1.2 Authorized personnel
Only qualified technical personnel may install,
operate, maintain, and repair the products de-
scribed in the assembly instructions. Qualified
technical personnel are persons who have
been trained, assigned, and instructed by the
operator of the final product into which the
described product is incorporated. Such per-
sons are familiar with the relevant standards,
rules, accident prevention regulations, and as-
sembly conditions as a result of their training,
experience, and instruction. They are qualified
to carry out the necessary actions and in do-
ing so recognize and avoid potential hazards.
The definition of trained personnel and the
prohibition against employing non-qualified
personnel are laid down in DIN VDE 0105 and
IEC 364.
The described product is manufactured in ac-
cordance with the generally accepted rules and
standards of industry practice and with occu-
pational safety and accident prevention regu-
lations. Risks may, however, arise from its us-
age and may result in physical harm to
persons or damage to other material assets.
Therefore the product may only be used in
proper technical condition and in observance
of the assembly instructions. In particular, any
malfunctions which may affect safety must be
remedied immediately.
1.1 Intended use
Pump units of SKF's FB series are used to supply
centralized lubrication systems in vehicles, sy-
stems and machines.
They deliver mineral oils or environmentally fri-
endly oils from ISO VG 46 and greases up to NLGI
Grade 3.
The technical data specifications in
Chapter 10 in the operating instructions must
be adhered to.
Only media approved for these types of pump
units may be used. Unsuitable media may re-
sult in pump unit failure and potentially severe
bodily injury and property damage. The
use of synthetic and biodegradable oils re-
quires prior approval from SKF Lubrication
Systems Germany GmbH.
Any other usage is deemed non-compliant
with the intended use.

Danger!
The protective earth connector must
always be connected. Ensure that the
contact is secure and that the connec-
tor diameter is adequate and standard-
compliant.
Warning!
Dangerous contact voltages may arise
on the unit if the protective earth con-
nector is not connected or is discon-
nected.
Page 8
EN Assembly instructions
1.4 System pressure hazard
Lubrication systems are pressurized
during operation. Centralized lubri-
cation systems must therefore be
depressurized before starting assembly,
maintenance or repair work, or any
system modifications or system repairs.
1.5 Hydraulic pressure hazard
The described product is pressurized
during operation. The product must
therefore be depressurized before
starting assembly, maintenance or
repair work, or any system modifica-
tions or system repairs.
1.3 Electric shock hazard
Electrical connections for the described prod-
uct may only be established by qualified and
trained personnel authorized to do so by the
operator, and in observance of the local condi-
tions for connections and local regulations
(e.g., DIN, VDE). Serious injury or death and
property damage may result from improperly
connected products.
Danger!
Performing work on an energized
pump or product may result in serious
injury or death.
Assembly, maintenance and repair work
may only be performed on products
that have been de-energized by
qualified technical personnel. The
supply voltage must be switched off
before opening any of the product's
components.

Page 9 EN
Assembly instructions
1.6 Explosion protection information
Danger!
Only the FB pump models tested and
approved by SKF Lubrication Systems
Germany GmbH in accordance with
ATEX Directive 2014/34/EC are permit-
ted to be used in potentially explosive
areas. The relevant class of protection
is engraved on the pump's rating plate.
When filling lubricant into the pump,
make sure the lubricant is clean. The
reservoir must be filled in good time
(pay attention to fill level monitoring).
The lubricant may only be filled via the
filler socket G 12" on the pump flange.
Lubricant may only be filled via the "res-
ervoir cover" if absolutely certain that no
potentially explosive atmosphere exists.
In case of overfilling, the excessive
amount of lubricant must be removed.
Make sure there is no potentially explo-
sive atmosphere when doing this.
The switching circuits of the fill level
monitor must be supplied by an in-
trinsically safe circuit, e.g., through the
installation of an ATEX-compliant isolating
switch by the customer.
The unit must be grounded via a ground
connection. The customer must install
adequate overload protection for the
power consumption of the motor.
To avoid electrostatic discharge, lay
hydraulic connecting lines in corrosion-
resistant metal tubing, e.g., stainless steel
pipe.
When setting up the pump, make sure
the setup location is level and not subject
to vibrations or jolts.
During maintenance work, use only tools
intended for use in potentially explosive
spaces or else make certain that there is
no potentially explosive atmosphere pres-
ent.
The service life of the grease/oil lubrica-
tion pump is limited. It must therefore
undergo a function and leak test at regu-
lar intervals. Perform appropriate repairs
in the event of malfunctions, leaks, or
rust. Replace the pump if necessary.
The user must make sure through the
choice of the lubricant to be delivered that
no chemical reactions capable of serving
as ignition sources will occur in conjunc-
tion with the explosive atmospheres
expected.
The lubricant’s ignition temperature has
to be at least 50 Kelvin above the pump’s
maximum surface temperature (tempera-
ture class).
Prior to commissioning the FB-ATEX
multiline pump, the operator must have
performed all ATEX-relevant safety pre-
cautions and ATEX tests.
The tests must conform with the pre-
scribed standard.
Prior to commissioning the FB-ATEX
multiline pump, the operator must
have checked that there is no explosive
atmosphere in the vicinity of the FB-ATEX
multiline pump.

Page 10
EN Assembly instructions
2. Lubricants
2.1 General information
All products from SKF Lubrication
Systems Germany GmbH may be used
only for their intended purpose and in
accordance with the information in the
product's assembly instructions.
Intended use is the use of the products for the
purpose of providing centralized lubrication/
lubrication of bearings and friction points us-
ing lubricants within the physical usage limits
which can be found in the documentation for
the devices, e.g., assembly instructions/operat-
ing instructions and the product descriptions,
e.g., technical drawings and catalogs.
Hazardous materials of any kind, especially
the materials classified as hazardous by CLP
Regulation EC 1272/2008 may only be used
to fill SKF centralized lubrication systems and
components and deliv-ered and/or distributed
with the same after consulting with and re-
ceiving written approval from SKF.
No products manufactured by SKF Lubrication
Systems Germany GmbH are approved for use
in conjunction with gases, liquefied gases,
pressurized gases in solution, vapors, or such
fluids whose vapor pressure exceeds normal
atmospheric pressure (1013 mbar) by more
than 0.5 bar at their maximum permissible
temperature.
Other media which are neither lubricant nor
hazardous substance may only be fed after
consulting with and obtaining written approval
from SKF Lubrication Systems Germany GmbH.
SKF Lubrication Systems Germany GmbH
considers lubricants to be an component of
the system design which must be factored into
the selection of components and the design of
centralized lubrication systems. The lubricating
properties of the lubricants are critically im-
portant in these considerations.
2.2 Selection of lubricants
Observe the instructions from the
machine manufacturer regarding the
lubricants that are to be used.
Warning!
The amount of lubricant required at
a lubrication point is specified by the
bearing or machine manufacturer. It
must be ensured that the required
quantity of lubricant is provided to the
lubrication point. The lubrica-
tion point may otherwise not receive
adequate lubrication, which can lead to
damage and failure of the bearing.
The selection of a lubricant suitable for the lu-
brication task is made by the machine/system
manufacturer and/or the operator of the ma-
chine/system in cooperation with the lubricant
supplier.
When selecting a lubricant, the type of bear-
ings/friction points, the expected load during
operating, and the anticipated ambient condi-
tions must be taken into account. All economic
and environmental aspects must also be
considered.

Page 11 EN
Assembly instructions
2.4 Lubricants and the environment
Lubricants can contaminate soil and
bodies of water. Lubricants must be
properly used and disposed of. Observe
the local regulations and laws regarding
the disposal of lubricants.
It is important to note that lubricants are envi-
ronmentally hazardous, flammable substances
which require special precautionary measures
during transport, storage, and processing.
Consult the safety data sheet from the lubri-
cant manufacturer
SKF Lubrication Systems Germany
GmbH
supports customers
in the selection of suitable components
for feeding the selected lubricant and in
the planning and design of a
centralized lubrication system.
Please contact SKF Lubrication Systems
Germany GmbH if you have further questions
regarding lubricants. Lubricants can be tested
in the company's laboratory for their suitability
for pumping in centralized lubrication systems
(e.g., "bleeding").
You can request an overview of the lubricant
tests offered by SKF Lubrication Systems
Germany GmbH from the company's Service
department.
2.3 Approved lubricants
Only lubricants approved for the prod-
uct may be used. Unsuitable lubricants
can lead to failure of the product and
damage to property.
Different lubricants must not be mixed,
as mixing may result in damage and
necessitate costly and complicated
cleaning of the product/lubrication
system. It is recommended that an
indication of the lubricant in use be
attached to the lubricant reservoir in
order to prevent accidental mixing of
lubricants.
The described product can be operated using
lubricants that meet the specifications in the
technical data. Depending on the product de-
sign, these lubricants may be oils, fluid greas-
es, or greases.
Oils and base oils may be mineral, synthetic,
and/or rapidly biodegradable. Consistency
agents and additives may be added depending
on the operating conditions.
Note that in rare cases, there may be lubri-
cants whose properties are within permissible
limit values but whose other characteristics
render them unsuitable for use in centralized
lubrication systems. For example, synthetic lu-
bricants may be incompatible with elastomers.

Page 12
EN Assembly instructions
for information regarding transport, storage,
processing, and environmental hazards of the
lubricant that will be used.
The safety data sheet for a lubricant can be
requested from the lubricant manufacturer.
2.5 Lubricant hazards
Centralized lubrication systems must
always be free of leaks. Leaking
lubricant is hazardous due to the risk
of slipping and injury. Beware of any
lubricant leaking out during assembly,
operation, maintenance, or repair of
centralized lubrication systems. Leaks
must be sealed off without delay.
Lubricant leaking from centralized lubrication
systems is a serious hazard. Leaking lubricant
can create risks that may result in physical
harm to persons or damage to other material
assets.
Follow the safety instructions on the
lubricant's safety data sheet.
Lubricants are hazardous substances. The
safety instructions on the lubricant's safety
data sheet must be followed. The safety data
sheet for a lubricant can be requested from
the lubricant manufacturer.

Page 13 EN
Assembly instructions
Components of the FB, FB-ATEX unit, Fig. 1
3. Overview
Components of the unit
Item Description
1 Fill level switch, 4 switching points
2 Reservoir cover (with fill level control)
3 Lubricant reservoir
4 Grease follower plate
5 Agitator
6 Pump element with ring connection,
second row, pump elements 13 to 24
7 Pump element with ring connection,
first row, pump elements 1 to 12
8 Filler socket
9 Gearbox
10 Pump motor
1
3
6
8
9
7
10
2
4
5
Danger!
Prior to assembly of the FB-ATEX multiline
pump, all safety-relevant ATEX guidelines and
certificates must be present and observed. It
must be ensured (checked) that no explosive
atmosphere is present. The applicable ATEX
guidelines must be observed.

Page 14
EN Assembly instructions
4. Assembly
4.1 Setup and attachment
The product should be protected from humid-
ity and vibration, and should be mounted so
that it is easily accessible, allowing all further
installation work to be done without difficulty.
Ensure that there is sufficient air circulation to
prevent the product from overheating. For the
maximum permissible ambient temperature,
see "Technical data."
The mounting position of the product is verti-
cal as shown in the assembly drawing.
Pressure gauges, oil level glasses, temperature
gauges and other visual monitoring equipment
must be clearly visible.
During assembly and especially when drilling,
always pay attention to the following:
Existing supply lines must not be dam-
aged by assembly work.
Other units must not be damaged by as-
sembly work.
4.1.1 Assembly of the pumps FB
and FB in ATEX design
FB and FB-ATEX multiline pump units are al-
ready factory-mounted on a pump baseplate.
The baseplate includes four assembly holes
with which the multiline pump unit is flanged
to the tunnel boring machinery. The pump's
base plate must not be under stress. Ensure
sufficient clearance during installation for later
service and maintenance work (see page 16).
When the reservoir is empty and its cover is
removed, the agitator of the lubrication pump
should be visible so that the functioning and
direction of rotation of the pump can be
checked by switching the pump on briefly.
The installed pump elements (see operating
instructions, page 33) are set for full stroke,
with the ring pieces with the check valve (5)
pointing upwards. The cap nut (WAF 24) (6)
keeps the ring piece pressed against the screw
socket (2). If you want to point the ring piece
in a different direction, loosen the cap nut and
tighten it again with the prescribed tightening
torque (see operating instructions, page 43)
after moving the ring piece around.
The number of pump elements can also be
changed later. The pump has to be shut done
while this is done - see the Maintenance
chapter in the operating instructions. Internal
threads for installing pump elements have to
be sealed off with screw plugs M 20 x 1.5 (see
Chapter 11, Accessories) if not in use.
The product must not be installed within
range of moving parts.
The product must be installed at an ad-
equate distance from sources of heat.
Maintain safety clearances and comply
with local regulations for assembly and
accident prevention.

Page 15 EN
Assembly instructions
Warning!
When drilling the assembly holes, you
must be careful of any supply lines or
other units, as well as of other hazards
such as
moving parts.
Maintain safety clearances and comply
with local regulations for assembly and
accident prevention.
Warning!
Do not tilt or drop the FB multiline
pump unit!
Danger!
The reservoir cover must be installed
before turning on or commissioning the
FB multiline pump units. The agitator
may cause injury if the reservoir cover
is not installed.
The multiline pump units are installed using 4
screws (and washers). If M18 tapped bores
are used to fasten the unit, the screws must
have a minimum length of 25 mm.
Fastening material to be provided by the
customer:
Hexagon head screws (3x) acc. to
DIN933-M18x25-8.8
Washers (4x) acc. to
DIN 125-B21-St
Drill assembly holes (M18) according to the
assembly drawing (Fig. 2) and the condi-
tions on the surface.
Clean the surface to remove drilling chips.
Place the pump unit with the mounting
plate onto the surface and roughly align it.
Pass hexagon head screws (4x) acc. to
DIN933-M18-8.8 with associated washers
(4x) acc. to DIN 125-B21-St through the
fixing holes on the mounting plate and
apply the screws to the M18 threads on
the surface
Gently tighten hexagon head screws (4x).
Align the mounting plate and tighten the
hexagon head screws with the following
tightening torque:
Tightening torque 300 Nm

Page 16
EN Assembly instructions
Dim. "B"
Dim. "A"
Dim. "C"
Assembly drawing for FB and FB-ATEX multiline pump unit, Fig. 2
4.2 Port dimensions
4.2.1 Assembly drawing for FB and FB-ATEX
FB
Multiline pump unit
FB ATEX
Multiline pump unit
<<<<
Minimum mounting
dimensions
Dim. Min. install
dimension
[mm]
A 950
B 750
C 1400

Page 17 EN
Assembly instructions
FB and FB-ATEX multiline pump unit, Fig. 3
Baseplate
t=10
420
500M10฀Ø 2081020
53060650
850
฀Ø 245
Maximum dimensions
8
10 9
1
4
3
2
5
12
11
6
7
21
22
13 15
14
24
23
16
17
19
18
20
second row
rst row
second row
rst row

Page 18
EN Assembly instructions
4.3 Electrical motor connection
Connect the pump unit motor according to
the specifications on the motor rating plate
and the motor characteristics.
Electric shock hazard
Electrical connections for the product
may only be established by qualified
and trained personnel authorized to do
so by the operator. The local conditions
for connections and local regulations
(e.g., DIN, VDE) must be observed.
Serious injury or death and property
damage may result from improperly
connected products.
Warning!
Connect lines in accordance with the
technical specifications and the local
conditions for connections and local
regulations (e.g., DIN, VDE).
Consult the motor's rating plate for the elec-
trical characteristics of the motor, such as rat-
ed power, rated voltage, and rated current.
Observe the guidelines in EN 60034-1 (VDE
0530-1) for operation at the limits of the
ranges A (combination of ±5% voltage devia-
tion and ±2% frequency deviation) and B
(combination of ±10% voltage deviation and
+3/-5% frequency deviation). This applies es-
pecially with regard to heating and deviations
in operating parameters from the ratings on
the motor's rating plate. The limits must never
be exceeded.
The mains voltage (supply voltage) must
match the specifications on the rating plate of
the motor or of the electrical components.
Check the fuse protection of the electrical cir-
cuit. Use only fuses with the prescribed am-
perage, else bodily injury and property dam-
age may result.
Be sure to connect the motor so as to guaran-
tee a continuously safe electrical connection
(no protruding wire ends); use the assigned
cable end fittings (e.g., cable lugs, wire end
ferrules). Select connecting cables conforming
to DIN VDE 0100 taking into account the rated
current and the conditions of the specific sys-
tem (e.g., ambient temperature, type of rout-
ing, etc. in accordance with DIN VDE 0298 or
IEC / EN 60204-1).
Details regarding electrical connection of the
motor to the power supply, especially terminal
and connector pin assignment, can be taken
from the customer's drawing for the reservoir
unit.
Warning!
When establishing electrical connection
of the pump motor, be mindful of the
correct direction of rotation of the mo-
tor.
If the direction of motor rotation is
marked on the product by an arrow in-
dicator, the motor's direction of rotation
must match the arrow.

Danger!
The protective earth connector must
always be connected. Ensure that the
contact is secure and that the connec-
tor diameter is adequate and standard-
compliant.
Warning!
Dangerous contact voltages may arise
on the unit if the protective earth con-
nector is not connected or is discon-
nected.
Page 19 EN
Assembly instructions
4.3.1 FB motor ratings
FB motor ratings
Synchron.
speed
[min-1]
Frequen-
cy
[Hz]
Rated power
[kW]
Rated voltage
[V]
Rated current
[A]
Order code
1500 50 0.55 230/400 (3~ AC) 2.45/1.41 AG07
Protection class IP 55, temperature class F
Note!
These data relate to the Siemens three-phase motor 1LAA 7080-4AA12. There may be differences with motors from
other manufacturers.
4.3.2 FB-ATEX motor ratings
FB motor ratings
Synchron.
speed
[min-1]
Frequen-
cy
[Hz]
Rated power
[kW]
Rated voltage
[V]
Rated current
[A]
Order code
1800 60 0.55 280/480 (3~ AC) 1) AG34
acc. to ATEX EExde II CT4, protection class IP 55, temperature class F
Note!
These data relate to the Siemens three-phase motor 1MJ60804CA12. There may be differences with motors from
other manufacturers.
Warning!
1) For the rated current, see the ATEX
motor's rating plate.

Page 20
EN Assembly instructions
4.3.3 FB- Assembly of the electric fill level switches
Fill level switch J
Proximity switch (4x)
Design ............... PNP, XOR,
short-circuit-proof,
reverse-polarity-
protected
Function indicator ......LED
Switch design .........1 switching point
Switching capacity, max. 60 W/VA
Switching voltage, max. 10-30VDC
Connection via plug with cable . . . (3 m)
Protection class of plug/socket . . . IP 68
Dimensions for fill level switch on FB multline pump unit, Fig. 4
3
3514035300
1423
BNBKWHBU
+
-
1. Switching point for max. fill level
2. Switching point for max. fill level pre-warning
3. Switching point for min. fill level pre-warning
4. Switching point for min. fill level