Bosch rexroth SB11 User manual

Instruction manual
RE66177-B/2022-05-03, EN
Load-sensing
control block SB11
for mobile applications

© BoschRexrothAG2022. All rights reserved,
also regarding any disposal, exploitation,
reproduction, editing, distribution,
as well as in the event of applications
for industrial property rights.
The data specified within only serves
todescribe the product. No statements
concerning acertain condition or suitability
for acertain application can be derived from
our information. The information given does
not release the user from the obligation of
own judgment and verification. It must be
remembered that our products are subject to
anatural process of wear and aging.
The cover shows an example application.
The product delivered may differ from the
image on the cover.
The original instruction manual was created
in German.

RE66177-B/2022-05-03, BoschRexrothAG
Contents | Load-sensing control block SB11 3/60
Contents
1 About this documentation ������������������������������������������������������������������������ 5
1.1 Validity of the documentation ...................................................................... 5
1.2 Required and supplementary documentation............................................... 5
1.3 Representation of information...................................................................... 6
1.3.1 Safety instructions ....................................................................................... 6
1.3.2 Symbols ....................................................................................................... 7
1.3.3 Designations ................................................................................................ 7
1.3.4 Abbreviations ............................................................................................... 8
2 Safety instructions ����������������������������������������������������������������������������������� 9
2.1 About this chapter........................................................................................ 9
2.2 Intended use ................................................................................................ 9
2.3 Improper use.............................................................................................. 10
2.4 Personnel qualifications ............................................................................. 10
2.5 General safety instructions ........................................................................ 10
2.6 Product-specific safety instructions ........................................................... 11
2.7 Personal protective equipment................................................................... 13
3 General instructions on property damage and product damage�������������� 14
4 Scope of delivery������������������������������������������������������������������������������������ 17
5 About these products ����������������������������������������������������������������������������� 18
5.1 Performance description............................................................................ 18
5.2 Product identification................................................................................. 18
5.3 Product description ................................................................................... 19
5.3.1 Definition of control block segments.......................................................... 19
5.3.2 Types of actuation ...................................................................................... 20
5.3.3 Definition of control block segment sides .................................................. 20
5.3.4 Port designations ....................................................................................... 21
5.3.5 Flange figure .............................................................................................. 21
5.3.6 Connecting plate for fixed pump (C2 and C4)............................................ 22
5.3.7 Connecting plate for variable pump (C6) ................................................... 24
5.3.8 Hitch control valve EHR11-EHS4................................................................. 26
5.3.9 Control valve SB11-EHS4 ........................................................................... 28
5.3.10 Intermediate plate...................................................................................... 29
5.3.11 Intermediate plate with RfB ....................................................................... 30
5.3.12 End plate (E1)............................................................................................ 30
5.3.13 End plate (E6)............................................................................................ 31
5.4 Control block versions ............................................................................... 32
5.4.1 Examples of control blocks with connecting plate and end plate............... 32
5.4.2 Examples of control blocks with connecting plate and end valve ............... 32
5.5 Combination options.................................................................................. 33
5.5.1 Control block for variable pump................................................................. 33
5.5.2 Control block for fixed pump ..................................................................... 34
6 Transport and storage ���������������������������������������������������������������������������� 35
6.1 Transporting the control block/control block segment............................... 35
6.1.1 Transport by hand ...................................................................................... 35
6.1.2 Transport with lifting devices ..................................................................... 35
6.2 Storage of control block/control block segment ........................................ 36

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7 Installation��������������������������������������������������������������������������������������������� 38
7.1 Unpacking .................................................................................................. 38
7.2 Assembly of control block segments to form acontrol block ..................... 38
7.3 Painting the control block/control block segment...................................... 38
7.4 Installation conditions................................................................................ 39
7.5 Installation position ................................................................................... 39
7.6 Assembly of the control block/control block segment................................ 39
7.6.1 Preparation ................................................................................................ 39
7.6.2 Fastening of the control block/control block segment................................ 39
7.6.3 Completion of installation.......................................................................... 40
7.6.4 Mechanical connection of the control block/control block segment .......... 40
7.6.5 Hydraulic connection of the control block/control block segment ............. 41
7.6.6 Customer-specific coupling connection...................................................... 42
7.6.7 Tightening torques for hydraulic ports ....................................................... 43
7.6.8 Electric connection of the control block/control block segment ................ 44
8 Commissioning��������������������������������������������������������������������������������������� 45
8.1 Before initial commissioning ...................................................................... 45
8.2 Initial commissioning ................................................................................. 46
8.3 Air bleeding................................................................................................ 47
8.3.1 Air bleeding at control block/control block segment.................................. 47
8.3.2 Bleeding SB control valves with EHS.......................................................... 47
8.3.3 Bleeding EHR hitch control valves with EHS............................................... 48
8.4 Recommissioning after standstill ............................................................... 49
9 Operation ����������������������������������������������������������������������������������������������� 50
9.1 Software description.................................................................................. 50
10 Maintenance and repair�������������������������������������������������������������������������� 51
10.1 Cleaning and care ...................................................................................... 51
10.2 Inspection and maintenance ...................................................................... 51
10.3 Repair ........................................................................................................ 51
10.4 Spare parts ................................................................................................ 52
11 Removal and replacement ���������������������������������������������������������������������� 53
11.1 Required tools............................................................................................ 53
11.2 Preparing for removal................................................................................. 53
11.3 Removal of control block/control block segment from machine................. 53
11.4 Preparing the components for storage or further use................................. 53
12 Disposal ������������������������������������������������������������������������������������������������� 54
13 Extension and conversion����������������������������������������������������������������������� 55
14 Troubleshooting ������������������������������������������������������������������������������������� 56
14.1 How to proceed for troubleshooting........................................................... 56
14.2 Malfunction table ....................................................................................... 57
15 Technical data ���������������������������������������������������������������������������������������� 58
16 Alphabetical index ��������������������������������������������������������������������������������� 59

RE66177-B/2022-05-03, BoschRexrothAG
About this documentation | Load-sensing control block SB11 5/60
1 About this documentation
1�1 Validity of the documentation
This documentation applies to load-sensing control blocks SB11 of BoschRexroth
including the following control block segments:
• Connecting plate, intermediate plate and end plate
• Control valves SB11-EHS4
• Hitch control valves EHR11-EHS4
This documentation applies for all mentioned control blocks and control block
segments independent from their manufacturing date until new revision of this
document.
This documentation is intended for machine/system manufacturers as well as
authorized specialists and dealers.
This documentation contains important information on safe and proper transport,
assembly and disassembly, commissioning, operation, maintenance and servicing
of the product.
▶ Read this documentation completely and in particular the chapters 2
"Safety instructions" on page9 and 3 "General instructions on property
damage and product damage" on page14 before starting to work with the
control block/control block segment.
1�2 Required and supplementary documentation
▶ Only commission the product if the documentation marked with the
book symbol is available, understood and complied with.
Table 1: Required and supplementary documentation
Title Document number Document type
Technical data sheet
Contains the permissible technical data.
Please bear in mind that different technical data sheets apply depending
on the version:
Data sheet
Load-sensing control block SB11 66177
Load-sensing directional valves in sandwich plate design SB11-EHS4 66176
Plates SB11 66181
Hitch control valves EHR11-EHS4 66126
Load-sensing control block SB11
Contains all information required for directional valve installation
66177-10-R Assembly
instructions
Pilot module EHS4
Safety-relevant project planning notes according to ISO 25119
66157-01-B Manual
Pilot module EHS4
Technical customer documentation (TKU)
66157-02-B Manual
Order confirmation
Contains the order-related technical data of the control block.
Order confirmation
Offer drawing
Contains the outer dimensions, all connections and the hydraulic circuit
diagram of the control block.
Offer drawing

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Table 1: Required and supplementary documentation
Title Document number Document type
Hydraulic fluids based on mineral oils and related hydrocarbons
Describes the requirements for mineral oil-based hydraulic fluids and
related hydrocarbons for operation with Rexroth hydraulic components
and provides support for selection of suitable hydraulic fluids for the
hydraulic system.
90220 Data sheet
Environmentally acceptable hydraulic fluids
Describes the requirements for environmentally acceptable hydraulic
fluids on mineral oil basis and related hydrocarbons for operation with
Rexroth hydraulic components, and provides support for selection of
suitable hydraulic fluids for the hydraulic system.
90221 Data sheet
For further documentation on installation and repair, refer to Table 16 on
page52 or consult your Bosch Rexroth Sales.
1�3 Representation of information
Uniform safety instructions, symbols, terms and abbreviations are used throughout
this documentation to ensure safe and proper use of the product. For clarification,
they are explained in the sections below.
1�3�1 Safety instructions
This documentation includes safety instructions in chapters 2.6 "Product-specific
safety instructions" on page11 and 3 "General instructions on property damage
and product damage" on page14, as well as prior to asequence of actions or
instructions with risk of injury or property damage. Always follow the measures for
danger prevention associated with the use of this product.
Safety instructions are set out as follows:
SIGNAL WORD
Type and source of danger
Consequences of non-compliance
▶ Danger prevention measures
•Warning sign: draws attention to the danger
•Signal word: identifies the degree of the danger
•Type and source of danger: indicates the type and source of the danger
•Consequences: describes the consequences of non-compliance
•Precautions: states how the danger can be avoided

RE66177-B/2022-05-03, BoschRexrothAG
About this documentation | Load-sensing control block SB11 7/60
Table 2: Hazard classes as defined in ANSI Z535�6
Warning sign, signal word Meaning
DANGER Identifies adangerous situation that will result in death or
serious injury if it is not avoided.
WARNING Identifies adangerous situation that may result in death or
serious injury if it is not avoided.
CAUTION Identifies adangerous situation that may result in minor to
moderate injury if it is not avoided.
NOTICE Property damage: The product or surrounding area may be
damaged.
1�3�2 Symbols
The following symbols indicate notices that are not safety-relevant but increase
understanding of the documentation.
Table 3: Meaning of symbols
Symbol Meaning
If this information is disregarded, the product cannot be used and/or
operated to its full extent.
▶ Single, independent action
1�
2�
3�
Numbered instruction:
The numbers indicate that the actions must be completed in order.
Black circle with white number:
Auxiliary marking for abetter understanding.
White circle with black number: Position or assembly group with
reference to the parts list and to the graphics within achapter.
White circle with black letters: Assembly group with reference to the
parts list and to the graphics within achapter.
1�3�3 Designations
This documentation uses the following designations:
Table 4: Designations
Designation Meaning
SB11-EHS4 Control valve with CAN bus-controlled electro-hydraulic actuating unit
EHR11-EHS4 Control valve with CAN bus-controlled electro-hydraulic actuating unit for
electrohydraulic hitch control
Control valve Directional valve type SB
Hitch control valve Directional valve type EHR
Control spool Main spool
Actuation Type of control spool actuation

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1�3�4 Abbreviations
This documentation uses the following abbreviations:
Table 5: Abbreviations
Abbreviation Meaning
AP Connecting plate
CAN Controller Area Network
PRV Pressure relief valve
DIN German Industrial Standard
DMV Pressure reducing valve
EHR Electrohydraulic hitch control
EHS Electro-hydraulic actuating unit
EVR End valve (with LS signaling direction from left to right)
EP End plate
IPC Individual pressure compensator
ISO International Organization for Standardization
(Internationale Normierungsorganisation)
RV Check valve
SPV Check valve
SVR Directional valve (with LS signaling direction from left to right)
ZP Intermediate plate

RE66177-B/2022-05-03, BoschRexrothAG
Safety instructions | Load-sensing control block SB11 9/60
2 Safety instructions
2�1 About this chapter
The product has been manufactured in accordance with generally accepted
engineering standards. There is still, however, adanger of personal injury or
property damage if this chapter and the safety instructions in this documentation
are not observed.
▶ Read this documentation completely and thoroughly before working with
the product.
▶ Keep this documentation in alocation where it is accessible to all users
at all times.
▶ Always include the required documentation when passing the product
on to third parties.
2�2 Intended use
Control blocks/control block segments are hydraulic components, meaning that
in their application area they are classified neither as complete nor as partly
completed machinery as defined in the EC Machinery Directive 2006/42/EC.
Acomponent is exclusively intended to form an incomplete or acomplete machine
together with other components. The component may only be commissioned after
it has been installed in the machine for which it is intended and the safety of the
entire system has been established in accordance with the machinery directive.
The control blocks/control block segments have been developed for applications
in the working hydraulics of agricultural machinery. Deviating use is only permitted
following consultation with BoschRexroth.
▶ Observe the technical data, the application and operating conditions and the
performance limits as specified in the data sheet and in the order confirmation.
Information about approved hydraulic fluids can be found in the corresponding
data sheet.
Intended use includes having completely read and understood this documentation
and particularly chapter 2 "Safety instructions" on page9.

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2�3 Improper use
Any use other than that described as intended use is considered improper.
BoschRexrothAG is not liable for damage resulting from improper use.
The user is solely responsible for any risks arising from improper use.
The following foreseeable forms of faulty usage are also considered improper
(this list is not exhaustive):
• Use outside the operating parameters approved in the data sheet and in the order
confirmation (unless specifically approved by the customer)
• Use of non-approved fluids, e.g.water or polyurethane components
• Application of the control block/control block segment in potentially explosive
environments
2�4 Personnel qualifications
The activities described in this documentation require abasic understanding of
mechanics, electrics and hydraulics, as well as familiarity with associated technical
terms. For transporting and handling the product, knowledge regarding the use
of lifting devices and lifting accessories is required. Skilled personnel refers
to persons who possess the professional training, knowledge and experience,
as well as the understanding of the regulations relevant to the work to be done
that are necessary to recognize possible dangers and take the appropriate safety
measures. Skilled personnel must follow the rules relevant to their field and have
the necessary hydraulic expert knowledge.
Hydraulic expert knowledge includes:
• Being able to read and fully understand hydraulic circuit diagrams and
• Knowledge regarding the function and interaction of hydraulic components.
BoschRexroth offers you measures supporting training in specific areas.
For an overview of the training contents, visit our website under:
www.boschrexroth.com/training.
2�5 General safety instructions
• Observe applicable accident prevention and environmental protection
regulations.
• Observe the safety regulations of the country in which the product is used/
operated.
• For Germany, the following applies: Hydraulic machinery/systems are
"facilities for handling substances hazardous to water in accordance with the
German Federal Water Act (WHG)". Sections 1 and 19 WHG (§19g, 19i, 19l)
in particular must be complied with in this respect.
• Use Rexroth products only when they are in good working order.
• Do not install, operate, disassemble or maintain Rexroth products if under the
influence of alcohol, drugs or medication that may affect your reaction time.
• Only use genuine Rexroth accessories and spare parts to ensure there is no
hazard to persons from unsuitable spare parts.
• Observe the technical data and ambient conditions specified in the product
documentation.

RE66177-B/2022-05-03, BoschRexrothAG
Safety instructions | Load-sensing control block SB11 11/60
• If unsuitable products are installed or used in safety-relevant applications,
unexpected operating conditions may occur in the application, which could result
in personal injury or property damage. For this reason, only use the product
in safety-relevant applications if this use is expressly indicated and approved
in the product documentation, e.g. in safety-related parts of acontrol system
(functional safety).
• Only commission the product if it has been determined that the end product
(e.g.machinery/system) in which the Rexroth products are installed corresponds
to the country-specific provisions, safety regulations and standards for the
application.
• Use tools appropriate for the work being performed and wear appropriate
protective clothing to prevent punctures and cuts.
2�6 Product-specific safety instructions
The following safety instructions apply for chapters 6 to 14.
WARNING
Danger due to suspended loads!
Risk of death or injury, or property damage!
In the event of inappropriate transport, the control block/control block segment
may be dropped and cause injury, e.g. bruises or fractures and/or damage to
the product.
▶ Make sure that the lifting capacity of the lifting device is sufficient to safely
bear the weight of the control block/control block segment.
▶ Never step or grip under suspended loads.
▶ Ensure astabletransport position.
▶ Use your personal protective equipment (e.g.safety goggles, safety gloves,
suitableworking clothes, safety shoes).
▶ Use suitablelifting devices for transport.
▶ Observe the prescribed position of the lifting strap.
▶ Observe the national laws and regulations on occupational health and safety,
and transportation.
System/machine under pressure!
Danger to life or risk of injury, severe bodily injury when working on machines
which have not been put to astandstill! Property damage!
▶ Switch off the entire system and secure it against reactivation according to the
parameters provided by the machine/system manufacturer.
▶ Ensure that all relevant components of the hydraulic system are depressurized.
For this purpose, observe the parameters indicated by the machine/system
manufacturer.
▶ Please note that the hydraulic system might still be pressurized even after
separation from the actual pressure supply.
▶ Do not disconnect any line connections, ports or components as long as the
hydraulic system is under pressure.

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WARNING
Escaping hydraulic fluid mist!
Risk of explosion and fire hazard, health hazard, risk of environmental pollution!
▶ Depressurize the relevant machine/system component and repair the leak.
▶ Keep open flames and ignition sources away from the control block/control
block segment.
▶ If control blocks/control block segments are located in the vicinity of ignition
sources or powerful thermal radiators, ashield must be erected to ensure
any escaping hydraulic fluid cannot be ignited, and to protect hose lines
from premature aging.
Electrical voltage!
Danger to life or risk of injury due to electric shock or property damage!
▶ Always disconnect the voltage supply to the relevant machine/system
part before installing the product and/or connecting or disconnecting
the connector.
▶ Protect the machine/system against reactivation.
Malfunction of control functions due to contamination!
Risk of injury or property damage!
Under certain circumstances, moving parts in control equipment (e.g. control spool)
can get stuck in an undefined position due to contamination (e.g. impure hydraulic
fluid, abrasion or residual dirt from components). As aresult, the activated
consumer does no longer respond correctly to the operator’s specifications.
▶ Comply with the prescribed cleanliness level of the hydraulic fluid in
accordance with the data sheet.
Danger caused by pressurized, leaking hydraulic fluid!
Risk of death or injury due to leaking hydraulic fluid streams! Leakage at the
control block/control block segment can lead to hydraulic fluid escaping
under high pressure.
▶ Depressurize the relevant machine/system component and repair the leak.
▶ Never attempt to block or seal the leak or hydraulic fluid jet with acloth.

RE66177-B/2022-05-03, BoschRexrothAG
Safety instructions | Load-sensing control block SB11 13/60
CAUTION
Risk of injury from sharp edges and rough surfaces!
When working on and transporting the control block/control block segment,
there is arisk of injury, e.g.due to sharp edges at the valve housing,
threads or at assembled parts.
▶ Wear appropriate personal protective equipment (e.g.safety shoes,
safety goggles, safety gloves and suitable working clothes).
Crushing and impact hazard for limbs!
In the gap between the actuation element and the valve housing, there is arisk
of injury.
▶ Do not move any limbs into the gap between the actuation element/hand
lever and the valve housing.
Hot surfaces at control block/control block segment!
Risk of getting burnt!
▶ Allow the control block/control block segment to cool down sufficiently before
touching it.
▶ Wear heat-resistant, protective clothing, e.g.gloves.
Contact with hydraulic fluid!
Risk of adverse health effects, e.g.eye injury, skin irritation, toxication from
inhalation!
▶ Avoid any contact with hydraulic fluids.
▶ When handling hydraulic fluids, the safety instructions of the lubricant
manufacturer need to be observed at all times.
▶ Use your personal protective equipment (e.g.safety goggles, safety gloves,
suitableworking clothes, safety shoes).
▶ Immediately seek medical attention, however, if hydraulic fluid gets into your
eyes or blood circuit or if you swallow it accidentally.
Danger from improper handling!
Slip hazard! When using the control block/control block segment as climbing aid,
there is adanger of slipping on wet and/or fluid-afflicted surfaces.
▶ Do not use the control block/control block segment as handle or step.
▶ Check how to safely get on top of the machine/system.
2�7 Personal protective equipment
The personal protective equipment is the responsibility of the user of the control
block/control block segment. Observe the safety regulations in your country.
All pieces of personal protective equipment must be intact.

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3 General instructions on property
damage and product damage
The following safety instructions apply for chapters 6 to 14.
NOTICE
Danger from improper handling!
Product can be damaged!
▶ Do not expose the product to any mechanical, hydraulic or electric loads
under any circumstances.
▶ Never use the product as handle or step.
▶ During transport, do not lift the control block/control block segment at
sensitive attachments (e.g. actuation elements, sensors, solenoids, or valves).
▶ Carefully place the control block/control block segment onto the contact
surface and secure it against falling to prevent damage.
▶ Do not put/place any objects on the product.
▶ Do not set/place the control block/control block segment on actuation
elements.
▶ Do not hit sensitive assembled parts (e.g.sensors, solenoids or actuation
elements).
▶ Sealing surfaces must not be damaged.
▶ Do not remove the transport protection until actual assembly at the control
block/control block segment.
▶ Make sure the electronic components (e.g.sensors) do not build up
electrostatic charges (e.g.during painting operation).
Risk of property damage due to inadequate lubrication!
Product can be damaged or destroyed!
▶ When commissioning the control block/control block segment, always ensure
that there is enough hydraulic fluid in the system.
▶ When commissioning amachine/system, make sure that the housing area and
the working lines of the control block/control block segment are filled with
hydraulic fluid and remain filled during operation.
Fluids and foreign particles enter due to missing seals and plugs!
Loss of protection class and danger of short circuit! The connector only satisfies
the type of protection in the plugged and locked state!
▶ Prior to installation as well as during cleaning and painting operation,
make sure that all seals and plug-in connections are tight.

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General instructions on property damage and product damage | Load-sensing control block SB11 15/60
NOTICE
Mixing hydraulic fluids!
Product can be damaged!
▶ Observe the viscosity and cleanliness level specified in the data sheet for
hydraulic fluids.
▶ Mixture of different hydraulic fluids can lead to damage at the control block/
control block segment due to chemical reactions and changes in properties.
▶ Ensure that the different hydraulic fluids are compatible according to
manufacturer's specifications.
Contamination of hydraulic fluid!
The cleanliness of the hydraulic fluid has aconsiderable impact on the service
life of the product. Contamination of the hydraulic fluid may lead to premature
wear and malfunctions!
▶ Make sure that the working environment at the installation site is fully free
of dust and foreign substances in order to prevent foreign particles from
getting into the hydraulic lines and causing product wear and malfunctions.
The control block/control block segment must be installed in aclean condition.
▶ Only use clean ports, hydraulic lines and assembled parts
(e.g.measuring devices).
▶ When plugging the ports, no contamination must ingress.
▶ Before commissioning, ensure that all hydraulic connections are tight and
that all seals and plugs of the plug-in connection are correctly installed and
undamaged to prevent fluids and foreign particles from entering the product.
Improper cleaning!
Product can be damaged!
▶ Plug all openings with suitable protective devices to prevent cleaning agents
from entering the product.
▶ Never use solvents or aggressive cleaning agents. Use only water and,
if necessary, amild cleaning agent to clean the product.
▶ Do not point high-pressure cleaners at sensitive components, e.g. rubber
parts, electrical connections (solenoids and sensors), and actuation elements.
▶ Use fiber-free cleaning cloths for cleaning.
Environmental pollution due to improper disposal!
Careless disposal of the control block/control block segment and its assembled
parts, the hydraulic fluid and the packaging material can cause environmental
pollution!
▶ Dispose of the control block/control block segment, hydraulic fluid,
and packaging in accordance with the national regulations in your country.
▶ Dispose of the hydraulic fluid in accordance with the applicable safety data
sheet for the hydraulic fluid.

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NOTICE
Danger from chemical or corrosive environmental conditions!
Product can be damaged! If the control block/control block segment is exposed
to chemical or aggressive environmental conditions, corrosion and even
malfunctions may occur. Leaks may lead to leakage of hydraulic fluid.
▶ Take suitable measures for protection of the control block/control block
segment against chemical and aggressive environmental conditions.
Escaping hydraulic fluid!
Risk of environmental pollution and contamination of ground water!
▶ When filling and draining hydraulic fluid, always place adrip tray under the
control block/control block segment.
▶ Use asuitable binding agent to collect any leaked hydraulic fluid.
▶ Observe the parameters in the safety data sheet for the hydraulic fluid and the
specifications provided by the machine/system manufacturer.
Danger from hot components!
Nearby products can be damaged! Components which heat up (e.g.,solenoids)
can cause damage to nearby products if they are too close during installation.
▶ When installing the control block/control block segment, check the distances
to nearby products to prevent any damage.
The warranty exclusively applies to the delivered configuration.
The warranty claim becomes void with
• Faulty installation, commissioning and operation,
• Improper use,
• Removal of the tamper-proof caps and seals (e.g. with pressure settings),
• Control of the settings at the factory,
• Unauthorized conversions and additional installations,
• Opening of the directional valve,
• Improper handling,
• Use of non-original spare parts by Rexroth.

RE66177-B/2022-05-03, BoschRexrothAG
Scope of delivery | Load-sensing control block SB11 17/60
4 Scope of delivery
Included in the scope of delivery:
• Control blockIn control block segment according to order confirmation
The following parts are also assembled prior to delivery according to version:
• Protective covers
• Protective plugs/threaded plugs

18/60 Load-sensing control block SB11 | About these products
BoschRexrothAG, RE66177-B/2022-05-03
5 About these products
5�1 Performance description
Refer to the data sheet and the order confirmation for the technical data, operating
conditions and operating limits of the directional valves.
For the assignments of directional valves to data sheets, refer to chapter 1.2
"Required and supplementary documentation" on page5.
5�2 Product identification
The product can be identified from the name plate.
The details on the name plate apply to the product as delivered. If modifications
have been made to the product in comparison to the delivery state, the name
plate information may not apply to the present product.
▶ Make sure that the name plates in place are not damaged.
▶ Compare the material number of the product on the respective name plate with
the details on the offer drawing to verify that this instruction manual refers to
the product in question.
If in doubt, please contact BoschRexroth.
FD: XXXXX
XXXXX
MNR: XXXXXXXXXXXX
SN: XXXXXXXXXXXX
CNR: XXXXXXXXXXXX
Made in XXXXXXX
1
4
5
6
2
3
Fig. 1: Name plate (example)
1 Word mark (manufacturer)
2 Material number
3 Designation of origin
4 Manufacturing date
JJ w WW = Year w calendar week
5 Data Matrix code
6 Range/serial number
The information on the above name plate may vary depending on order-specific
requirements.
Any other labeling on the product is just for BoschRexroth-internal purposes.

RE66177-B/2022-05-03, BoschRexrothAG
About these products | Load-sensing control block SB11 19/60
5�3 Product description
For adescription of the layout and function of the control blocks and instructions
on the project planning of individual directional valves, refer to the data sheet.
For the assignments of directional valves to data sheets, refer to Table 1
"Required and supplementary documentation" on page5.
5�3�1 Definition of control block segments
Control blocks are parts of hydraulic systems for control of actuators like tractor
attachments.
The control block includes various control block segments in sandwich plate
design. The control block segments have various functions and are structured
as follows:
The connecting plate is equipped with the LS signal output (port Yo..). The
connecting plates are usually fitted with tie rod screws to slide on the block
segments. The flange surface is always fitted with O-rings in the flange surface
(flange surface O-ring side).
Connecting plates with inlet port (P..) are further distinguished as follows.
• Connecting plate for fixed pump
• Connecting plate for variable pump
The EHR control valve serves for electrohydraulic hitch control and is controlled via
CAN bus in acircuit with electronic control unit and sensors.
The SB11 control valve serves for control of various actuators and is controlled
via CAN bus.
The control valve SB11 in the version as end valve with LS signaling direction
from left to right (EVR) closes the control block.
The intermediate plate does not have any hydraulic functions and serves as spacer.
The control block is completed by the end plate which can also have other
functions. The flange surface is never fitted with O-rings in the flange surface
(flange surface O-ring opposite side).
The SB11 control block segments shown below are described by means of
dummies. For aprecise overview of all available combinations, refer to the
respective data sheet.
For the precise position and designation of external ports, refer to the
data sheet or the offer drawing.
Control block
Port Connecting
Hitch control valve EHR11
Control valve SB11
Intermediate plate
End plate

20/60 Load-sensing control block SB11 | About these products
BoschRexrothAG, RE66177-B/2022-05-03
5�3�2 Types of actuation
The CAN bus pilot signal is generated in acontrol unit according to afixed protocol.
By means of the directional valve on-board electronics, the CAN bus pilot signal is
converted in aspool deflection at the directional valve.
5�3�3 Definition of control block segment sides
Independent from the LS direction, the flange surface O-ring side always receives
the side designation .
Depending on the arrangement of the tie rod bores and the flange surface
O-ring side , the block segment sides are designated from ….
Right-side version
BB
AA
AP
AP
EP
EP
① ①
②
②
②
②
③ ③
④ ④
⑤ ⑤
⑥
⑥
⑥
⑥
Fig. 2: Definition of control block segment sides
Side : Consumer port side
Side : Flange surface O-ring opposite side or AP outer side
Side : Lower side
Side : Front face side A (EHS side)
Side : Front face side B
Side : Flange surface O-ring side and/or EP outer side
CAN bus control: