Bosch rexroth CytroBox User manual

Operating instructions
RE51057-B/11.19
Replaces: –.–
English
Hydraulic power unit
CytroBox

The data specified above only serve 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. Please note that our
products are subject to a natural process of
wear and aging.
© All rights are reserved to BoschRexrothAG,
also regarding any disposal, exploitation,
reproduction, editing, distribution, as well
as in the event of applications for industrial
propertyrights.
The cover shows an example configuration.
Theproduct supplied may therefore differ from
the figure shown.
The original operating instructions were
prepared in German.

CytroBox, RE 51057-B/11.19, Bosch Rexroth AG
3/128Contents
Contents
1 About this documentation 7
1.1 Validity of the documentation 7
1.2 Required and amending documentation 7
1.3 Representation of information 9
1.3.1 Safety instructions 9
1.3.2 Symbols 10
1.3.3 Abbreviations 10
2 Safety instructions 11
2.1 General information on this chapter 11
2.2 Intended use 11
2.3 Improper use 12
2.4 Qualification of personnel 12
2.5 General safety instructions 13
2.6 Product-specific safety instructions 14
2.7 Personal protective equipment 17
2.8 Obligations of the machine end-user 17
3 General information on damage to property and damage to product 18
4 Scope of delivery 20
5 Product information 21
5.1 Performance description 21
5.2 Product description 23
5.3 Functional description 24
5.3.1 Drive controller 24
5.3.2 Sensor evaluation 27
5.3.3 Monitoring systems 32
5.3.4 Fixed command value memory 35
5.3.5 Oil and water cooling 37
5.3.6 Degassing and drainage 38
5.3.7 RGB LED as status display 39
5.3.8 Description of parameters and diagnosis 39
5.4 Component overview 48
5.5 Circuit diagram, hydraulic 52
5.6 Product identification 54
6 Transport and storage 55
6.1 Transporting the hydraulic power unit 55
6.1.1 Preparing for transport 56
6.1.2 Transport using forklifts and similar floor conveyors 56
6.1.3 Transport using lifting gear 56
6.2 Storage of the hydraulic power unit 58
7 Assembly 59
7.1 Unpacking the hydraulic power unit 59
7.2 Installing the hydraulic power unit 59
7.2.1 Dimensions of the hydraulic power unit
(dimensions inmm) 60
7.3 Hydraulic supply connection 61

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7.4 Water supply connection 64
7.5 Electrical interface assignment 65
7.5.1 Voltage supply feed-in assignment 65
7.5.2 Interface 20X1 assignment: Digital input and output signals 66
7.5.3 Interface 21X1 assignment: Safe Torque OFF (STO) 67
7.5.4 Interfaces 22X1 and 22X2: Multi-Ethernet
control communication as well as 30X1: CytroConnect 68
7.5.5 Interface 23X2 assignment: Connection of
cooling unit and 23X3: Watervalve connection(optional) 69
7.5.6 Interface X26 assignment 69
7.6 Electrical interface connection 70
8 Commissioning 71
8.1 First commissioning 71
8.1.1 Before commissioning 71
8.1.2 Filling of the hydraulic power unit 71
8.1.3 Switching on the power supply 73
8.1.4 Bleeding the entire hydraulic system of the machine 73
8.1.5 Commissioning of the "hydraulics" 73
8.1.6 Flushing the hydraulic system 75
8.1.7 Common errors during commissioning 76
8.1.8 Commissioning of the "electronics" 77
8.2 Re-commissioning after longer standstill 96
9 Operation 97
10 Maintenance and repair 98
10.1 Cleaning and care 98
10.2 Inspection 99
10.3 Warning devices 99
10.4 Maintenance schedule 100
10.5 Maintenance 100
10.5.1 Checking the electric components/installation 100
10.5.2 Filling level monitoring 101
10.5.3 Monitoring the oil temperature 101
10.5.4 Monitoring the filter element contamination (pressure filter) 102
10.5.5 Visual inspection of the air filter 103
10.5.6 Checking the pressure values 103
10.5.7 Hydraulic fluid care 103
10.5.8 Visual inspection for leakage, cracking, force effects and corrosion 104
10.6 Spare and wear parts 105
11 Decommissioning 108
11.1 Preparing for decommissioning 108
11.2 Decommissioning process 108
12 Disassembly and replacement 109
12.1 Preparing disassembly 109
12.2 Disassembly process 109
13 Disposal 110
13.1 Environmental protection 110
14 Extension and modification 111

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15 Troubleshooting 112
15.1 How to proceed for troubleshooting 112
15.1.1 Overview of the impact of defects 113
16 Technical data 116
17 Appendix 118
17.1 List of addresses 118
17.2 Declaration of incorporation 119
17.3 Prohibited substances - REACH, RoHS, WEEE 121
17.4 Accessories 122
18 Alphabetical index 123

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About this documentation 7/128
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1 About this documentation
1.1 Validity of the documentation
This documentation applies to the following product:
• Hydraulic power unit typeCytroBox, for material numbers, refer to datasheet51057.
These operating instructions apply only to the hydraulic power unit as such.
Ifthebasic device is operated with other attachments, e.g. hydraulic control,
accumulator station, documentation is required for the entire scope of delivery.
This documentation is intended for assemblers, operators, service engineers and
system end-users and machine and system manufacturers.
This documentation contains important information on the safe and proper transport,
assembly, commissioning, operation, use, maintenance, disassembly and simple
troubleshooting of the product.
 You should read this documentation thoroughly, and in particular chapter2
"Safety instructions" and chapter3 "General information on damage to property
and damage to product", before handling the hydraulic power unit.
1.2 Required and amending documentation
 Also observe the operating instructions and documentation of the overall
machinery/system.
 The hydraulic power unit must not be commissioned until you have been
provided with the documentation marked with the book symbol and you have
understood and observed it.
Table 1: Required and amending documentation
Title Document number Document type
CytroBox hydraulic power unit
Technical data, operating conditions, performance limits and project planning
information
51057 Datasheet
Pressure relief valve, direct operated; typeDBD
Includes technical data, operating conditions and performance limits.
25402 Datasheet
Pressure relief valve, direct operated (safety valve according to Pressure
Equipment Directive2014/68/EU); typeDBD...1X/..E
Includes amending information on datasheet 25402.
25402-B Operating
instructions
Filter elements type1.; 2.; 4.; 6.; 7. and 20. Filter elements
Includes technical data, operating conditions and performance limits.
51420 Datasheet
Hydraulic fluids based on mineral oils and related hydrocarbons
Describes the requirements on hydraulic fluids on mineral oil basis and related
hydrocarbons for operation with Rexroth hydraulic components and helps you to
select a hydraulic fluid for your hydraulic system
90220 Datasheet
Environmentally compatible hydraulic fluids
Includes application notes and requirements for Rexroth hydraulic components.
90221 Datasheet
Sytronix, SvP 7020 IMC, variable-speed pump drives
Includes a description how to commission SvP 7020 IMC.
R911376148 Description of the
commissioning

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Table 1: Required and amending documentation
Title Document number Document type
Sytronix, SvP 7020 IMC, variable-speed pump drives
Includes information on the electric drive system.
R911377187 Operating
instructions
Axial piston units A10FZO, A10VZO and A10FZG, A10VZG;
Series 10 for variable-speed drives
Includes technical data, operating conditions, performance limits and project
planning information
91485 Datasheet
General operating instructions for axial piston units
Includes amending information on datasheet 91485.
90300-B Operating
instructions
IndraDyn S, synchronous motors MS2N
Includes information for the operating, service and maintenance personnel and
basic instructions on installation, operation and maintenance of the motors.
R911347580 Operating
instructions
Rexroth IndraDrive, drive controllers, power sections HCS03
Includes information on the installation and operation of the drive controllers,
power sections HCS03 in short.
R911327655 Instructions for use
Rexroth IndraDrive, drive controllers, power sections HCS03
Includes information on the installation and operation of the drive controllers,
power sections HCS03.
R911339023 Operating
instructions
Rexroth IndraDrive, control sections CSB02, CSE02, CSH02, CDB02
Includes information on the installation and operation of the control sections
CSB02, CSE02, CSH02 and CDB02.
R911338961 Project planning
description
IndraDrive, MPx-20, functions
Describes all functional properties of variants MPB-20, MPM-20, MPC-20 and
MPE-20.
R911345607 Application
description
Rexroth IndraDrive, integrated safety technology "Safe Torque Off"
(as of MPx-16)
Includes information on the assembly and maintenance, on the correct and
safe operation and on the decommissioning of the integrated safety technology
"Safe Torque Off" of the IndraDrive drive technology.
R911332633 Application
description
MS2N synchronous servo motors
Explains the product properties, application possibilities, application conditions
and operating limits of the motors, includes the data of the available motors and
gives advice on product selection, handling and operation.
R911347582 Project planning
instructions
Rexroth IndraDrive, IndraDrive with PROFINET, example with
Siemens SIMATIC S7
This documentation explains the commissioning of the following drives:
IndraDriveC, IndraDrive M and IndraDrive Cs with PROFINET communication.
Theconnection to the drive for commissioning is established via a SIMATIC
control system by Siemens.
R911341342 Commissioning
instruction
Rexroth IndraDrive, IndraDrive with EtherCAT, example with Beckhoff TwinCAT
This documentation explains the commissioning of drive controllers of the
following drive families: IndraDrive C, IndraDrive M, IndraDrive Mi and IndraDrive
Cs with EtherCAT communication in connection with the external control TwinCAT
by Beckhoff.
R911341344 Commissioning
instruction

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1.3 Representation of information
Consistent safety instructions, symbols, terms and abbreviations are used in
this documentation so that you can quickly and safely work with your hydraulic
powerunit. For better understanding, they are explained in the following sections.
1.3.1 Safety instructions
In this documentation, safety instructions are contained in chapter2.6
"Product-specific safety instructions" and in chapter3 "General information on
damage to property and damage to product" and wherever a sequence of actions
or instructions are explained which bear the danger of personal injury or damage
to property. The hazard avoidance measures described must be observed.
Safety instructions are structured as follows:
SIGNAL WORD
Typeand source of danger!
Consequences in case of non-compliance
 Hazard avoidance measures
 Enumeration
• Warning sign: draws attention to the danger
• Signal word: identifies the degree of danger
• Typeand source of danger: specifies the typeand source of danger
• Consequences: describes the consequences of non-compliance
• Precautions: specifies how the danger can be prevented
Table 2: Risk classes according to ANSI Z535.6-2006
Warning sign, signal word Meaning
DANGER Indicates a dangerous situation which will cause death or
severe injury if not avoided.
WARNING Indicates a dangerous situation which may cause death or
severe injury if not avoided.
CAUTION Indicates a dangerous situation which may cause minor or
medium (personal) injury if not avoided.
NOTICE Damage to property: The product or the environment could
be damaged.

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1.3.2 Symbols
The following symbols indicate notices which are not safety-relevant but increase the
comprehensibility of the documentation.
Table 3: Meaning of the symbols
Symbol Meaning
If this information is not observed, the product cannot be optimally used and/
or operated.
 Individual, independent action
1.
2.
3.
Numbered instruction:
The numbers indicate that the actions must be carried out one after the other.
1.3.3 Abbreviations
The following abbreviations are used in this documentation:
Table 4: Abbreviations
Abbreviation Meaning
AB Power unit construction
BR BoschRexroth
DBV Pressure relief valve
EC EtherCAT
HPU Hydraulic Power Unit
IMC Injection Molding Control
OM Operation Mode
OZ Ordinal number
PE Protected Earth
PN ProfiNet
RE Rexroth document in English language
REXXXXXX-B Rexroth operating instructions in English
REACH Registration, Evaluation, Authorization and Restriction of Chemicals
RoHS Restriction of (the use of certain) Hazardous Substances in electrical and
electronic equipment
SC SERCOS
STO Safe Torque Off
SVHC Substances of Very High Concern
WEEE Waste of Electrical and Electronic Equipment

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2 Safety instructions
2.1 General information on this chapter
The hydraulic power unit was designed and manufactured according to the generally
accepted code of practice. However, there is still the danger of personal injury and
damage to property if you do not observe this chapterand the safety instructions in
this documentation.
 Read this documentation completely and thoroughly before working with the
hydraulic power unit.
 Keep this documentation in a location where it is accessible to all users at all times.
 Always include the required documentation when you pass the hydraulic
powerunit on to third parties.
Due to the interaction between the hydraulic power unit and the complete machine,
the installation of the hydraulic power unit into the overall machinery/system
willresult in additional potential hazards. This applies in particular to the
influence of hydraulic and electric controls on hydraulic drives generating
mechanical movements. It is therefore essential for the manufacturer of the
overall machinery/system to have undertaken an independent risk assessment.
Furthermore, the manufacturer must on this basis have prepared operating
instructions for the complete machinery.
These operating instructions do not serve as replacement of the operating
instructions of the overall machinery/system.
2.2 Intended use
The hydraulic power unit is a hydraulic system component.
You may use the product as follows:
The hydraulic power unit constitutes partly completed machinery in the sense of the
EC Machinery Directive2006/42/EC and is respectively not usable.
The hydraulic power unit is exclusively intended for integration into a machine or
system or for assembly with other components to form a machine or a system.
Theproduct may be commissioned only if it has been integrated into the machine or
system for which it is designed and if the machine or system fully complies with the
requirements of the EC Machinery Directive.
The hydraulic power unit serves for regulated generation of hydraulic flow and
hydraulic pressure.
The hydraulic power unit is not considered to be a safety component in the sense
of the EC Machinery Directive2006/42/EC.
The hydraulic power unit must not exceed the operating conditions and
performance limits specified in the technical data.
The hydraulic power unit is technical equipment exclusively intended for professional
and not for private use.

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Intended use includes having read and understood this documentation, especially
chapter2 "Safety instructions" and chapter 3 "General information on damage to
property and damage to product".
2.3 Improper use
Any use deviating from the intended use is improper and thus not admissible.
BoschRexrothAG does not assume any liability for damage caused by improper use.
The user assumes all risks involved with improper use.
The hydraulic power unit is not suitable for operation in explosive environments.
Improper use of the hydraulic power unit includes:
 Non-compliance with the technical data, operating conditions, performance limits
and environmental conditions specified in chapter 16.
 Operation of the hydraulic power unit with hydraulic fluid not complying with the
specifications in chapter16.
 Use of spare parts that are not approved by the manufacturer.
 Mechanical modification of the hydraulic power unit.
 Welding or soldering works at the hydraulic power unit.
2.4 Qualification of personnel
The activities described in this documentation require basic knowledge of mechanics,
electrics and hydraulics as well as knowledge of the appropriate technical terms.
Fortransporting and handling the hydraulic power unit, additional knowledge of how
to handle lifting gear and the necessary attachment devices is required. In order to
ensure safe use, these activities may only be carried out by a corresponding expert or
an instructed person under the direction and supervision of an expert.
Experts are those who are able to recognize potential dangers and apply the
appropriate safety measures due to their professional training, knowledge and
experience, as well as their understanding of the relevant conditions pertaining
to the work to be undertaken. An expert must observe the relevant specific
professional rules and have the necessary hydraulic and electrical expert knowledge.
Required experts are for example:
• Mechatronics engineer with additional hydraulic training
• Application engineer for parameterization of the drive parameters
• Automation engineer for parameterization of the field bus communication between
hydraulic power unit and machine control
BoschRexroth offers measures supporting the training in specific fields.
Pleasefind an overview of the training contents on the internet at:
http://www.boschrexroth.de/training

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2.5 General safety instructions
• Observe the valid regulations on accident prevention and environmental protection.
• Observe the safety regulations and provisions of the country in which the product
is used/applied.
• Exclusively use Rexroth products in technically perfect condition.
• Observe all notices on the product.
• Persons who assemble, operate, disassemble or maintain Rexroth products
mustnot consume any alcohol, drugs or pharmaceuticals that may affect their
ability to react.
• Only use accessories and spare parts approved by the manufacturer in order to
exclude hazards to persons due to unsuitable spare parts.
• Comply with the technical data and environmental conditions specified in the
product documentation.
• The installation or use of inappropriate products in safety-relevant applications
could result in unintended operating conditions when being used which in turn
could cause personal injuries and/or damage to property. Therefore, only use
a product for safety-relevant applications if this use is expressly specified and
permitted in the documentation of the product, e.g.in explosion-protected areas or
in safety-related parts of control systems (functional safety).
• Do not commission the product until you can be sure that the end product
(forexample a machine or system) where the Rexroth product is installed complies
with the country-specific provisions, safety regulations and standards of the
application.
• Only persons who have been authorized by the machine end-user may be granted
access to the direct operating range of the machine/system. This also applies
during any standstill of the machine/system.

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2.6 Product-specific safety instructions
WARNING
Pressurized hydraulic power unit, pressurized machine/system!
Danger to life, risk of injury, severe injury when working at running
machines/systems, burning, environmental pollution, damage to property!
 Ensure that all relevant components of the hydraulic system are depressurized
and that the electrical control is de-energized. For doing so, observe the
specifications of the machine/system manufacturer and/or end-user.
 Do not disconnect line connections, connections or components as long as the
hydraulic system is pressurized.
 Make sure that appropriate safety measures are implemented to prevent
any dangerous situations for personnel and real assets if commissioning or
maintenance work requires decommissioning of safeguard like fuses, pressure
relief valves, etc.
 Make sure that all safeguards like fuses, pressure relief valves, etc. of the
hydraulic power unit are in place, properly installed and fully functional on
re-commissioning, and that the doors of the hydraulic power unit are closed.
High electrical voltage!
Danger to life, risk of injury caused by electric shock or severe injury!
 Make sure the relevant system part is de-energized when working at the system.
 Secure the system against restarting.
 Operate the hydraulic power unit only with a permanently installed protective
grounding conductor.
(Pressurized) hydraulic fluid and oil mist leaking!
Danger to life! Risk of injury! Explosion hazard! Risk of fire! Environmental
pollution! Damage to property!
 Switch the system off immediately (emergency off switch).
 Identify and remedy the leakage.
 Never try to stop or seal the leakage or the oil jet using a cloth.
 Avoid direct contact with the leaking hydraulic fluid.
 Carry out visual inspections for leak-tightness of the hydraulic power unit and
the oil-containing components on a regular basis.
 Use your personal protective equipment.
 Keep open fire and ignition sources away from the hydraulic power unit.
 When dealing with hydraulic fluids, you must imperatively observe the notices of
the manufacturer.
 Make sure that the grounding (electric welding circuit) during welding works at
the system is not lead via the hydraulic power unit.

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WARNING
Unexpected start-up due to malfunctions/incorrect operation!
Danger to life! Risk of injury!
 Ensure that the hydraulic power unit is secured against unexpected start-up.
 Regularly check the hardware and software.
 Make sure that required measures for decommissioning
(SafeTorqueOfffunction) are implemented by the machine manufacturer as
the hydraulic power unit is not equipped with direct measures (e.g.switches)
fordecommissioning of the product.
Direct contact with live components in case of fault, e.g.loose terminals,
insulation defects, missing grounding, malfunction of fuses or damaged lines,
components or terminals!
Danger to life! Risk of injury! Danger caused by electric shock or severe injury!
 Before any maintenance work, de-energize the relevant system part.
 Ensure continuous connection of the protective grounding conductor.
 Observe the operating conditions and performance limits specified in the
technical data.
 Work at electric equipment may only be performed by specialized electricians.
 Comply with the recommended inspection and maintenance intervals.
 Close the doors of the hydraulic power unit.
Overheating of the hydraulic power unit!
Danger to life! Risk of injury! Explosion hazard!
 De-energize the relevant system part immediately.
 Correct the cause of overheating.
 Do not use the hydraulic power unit in potentially explosive atmospheres.
Functional restrictions of the hydraulic power unit due to EMC irradiation!
Danger due to uncontrolled machine movements due to electro-magnetic radiation
of unshielded connection lines.
 Observe the EMC limit values.
 Only use recommended electrical connection lines according to the
EMCDirectiveand shield the electronics from the source of interference,
ifnecessary.
 Keep the recommended distance to the source of interference.
 Provide for proper, safe PE connection.
Overheating of electric lines and components or short-circuit!
Danger to life! Risk of injury! Risk of fire!
 Observe the operating conditions and performance limits and safeguards
specified in the technical data.

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CAUTION
Hydraulic power unit has hot surfaces (motor, pump, block, valves, electronic
components)!
Risk of injury! Risk of burning!
 Allow the hydraulic power unit to cool down sufficiently before touching it.
 Wear heat-resistant gloves or protective clothing. During or after the operation,
temperatures may rise to values higher than 60°C, depending on the operating
conditions.
 Observe the protective measures of the machine/system manufacturer and/or
operator.
 Make sure that during operation, all doors are closed.
Leaked hydraulic fluid, oily surfaces!
Risk of injury! Slip hazard!
 If no separate hydraulic room is available, put the hydraulic power unit into a
drip pan.
 Protect and mark the danger zone.
 Immediately remove hydraulic fluid that has leaked out.
 Use an oil binding agent in order to bind the leaked hydraulic fluid.
 Remove and dispose of the contaminated oil binding agent, seechapter13
"Disposal".
 Wear the personal protective equipment prescribed for your activity.
 Perform a leak test.
Contact with hydraulic fluid!
Health hazard/impairment of health, e.g.eye injuries, skin lesions, intoxication
upon inhalation or due to swallowing, sensitization!
 Avoid contact with hydraulic fluids.
 When dealing with hydraulic fluids, you must imperatively observe the
safetyinstructions of the hydraulic fluid manufacturer.
 Use your personal protective equipment (like e.g.safety goggles,
protectivegloves, suitable working clothes, safety shoes).
 If nevertheless hydraulic fluid comes into contact with the eyes or gets into the
bloodstream or is swallowed, please consult a doctor immediately.
Electro-magnetic/magnetic fields!
Health hazard for persons with cardiac pacemakers, metal implants or hearing aids!
 Make sure that above specified personnel are prevented from accessing areas
where drive components are installed and operated or arrange consultation with
a doctor for approval.
Loud noise due to high sound pressure level (in case of malfunction)!
Danger of hearing damage (temporary/permanent), stress/loss of attention!
Faultin voice communication and acoustic signals!
 Wear your ear protection.
 Consult the machine manufacturer or BoschRexroth to identify any malfunction
if applicable.
 Make sure that during operation, all doors are closed.

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2.7 Personal protective equipment
During operation and maintenance work as well as during installation and removal of
the hydraulic power unit, always wear the following personal protective equipment:
• Heat- or cold-resistant protective gloves
• Ear protection
• Safety shoes
• Perfectly fitting safety goggles
• Protective helmet
2.8 Obligations of the machine end-user
In order to ensure safety when handling the hydraulic power unit and its
components, the machine end-user of the system must:
• guarantee the intended use of the hydraulic power unit and its components
according to chapter 2.2 "Intended use".
• instruct the operating personnel regularly in all items of the operating instructions
and make sure that they are observed.
• ensure compliance with the instructions on occupational safety and with the
operating instructions.
• ensure compliance with operating data (admissible operating temperature,
maximum operating pressure).
The machine end-user of the BoschRexroth hydraulic power unit is obliged to
provide personnel training on a regular basis regarding the following subjects:
•Observation and use of the operating instructions as well as the legal regulations.
•Intended operation of the BoschRexroth product.
•Observation of the instructions of factory security officers and of the operating
instructions of the machine end-user.
•Behavior in case of emergency

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3 General information on damage to
property and damage to product
The warranty only applies to the delivered configuration. The claim to warranty
expires if the product is assembled, commissioned and operated incorrectly,
notused as intended and/or handled improperly.
NOTICE
Danger due to improper handling!
Damage to property!
 You may only use the hydraulic power unit according to chapter 2.2
"Intended use".
 Do not expose the hydraulic power unit to any mechanical loads under any
circumstances.
 Do not place/put any objects on top of the hydraulic power unit.
 Never use the hydraulic power unit and/or brackets mounted to the hydraulic
power unit for electric or hydraulic lines as a handle or step.
 Do not apply any external loads on the hydraulic power unit.
Unauthorized changes to the drive parameters!
Damage to property!
 Only change the parameters specified in chapter 8.1.8 "Commissioning of the
"electronics"" according to your application and system requirements.
 Coordinate the any changes of other parameters with the BoschRexroth
customer service.
Operation with lack of hydraulic fluid!
Damage to property!
 When commissioning or re-commissioning the machine/system, the oil tank
aswell as the suction and working lines of the hydraulic power unit and
the components must be filled and remain filled with hydraulic fluid during
operation according to manufacturer's specifications.
 Observe the machine/system manufacturer's specifications regarding the point
"Control of the hydraulic fluid" and the prescribed remedial measures for the
control result.
Leaking or spilled hydraulic fluid!
Environmental pollution and contamination of the ground water!
 Use an oil binding agent in order to bind the leaked hydraulic fluid.
 When filling and draining the hydraulic fluid, always put a drip pan under the
hydraulic power unit.
 Observe the information in the safety datasheetof the hydraulic fluid and the
machine/system manufacturer's regulations.

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NOTICE
Mixing hydraulic fluids!
Damage to property!
 Generally avoid any mixing of hydraulic fluids of different manufacturers and/or
of different types of the same manufacturer.
Contamination by fluids and foreign particles!
Early wear and malfunctions!
Take the following measures to protect the hydraulic power unit:
 During assembly, provide for cleanliness in order to prevent foreign particles
e.g.welding beads or metal chips from getting into the hydraulic lines and
causing wear or malfunctions in the hydraulic power unit.
 Make sure that all connections, hydraulic lines and attachment parts
(e.g.measuring devices) are clean and free of chips.
 For removing lubricants or any other contamination, use industrial residue-free
wipes.
 Only complete cleaning processes at the hydraulic power unit if the hydraulic
connections are closed.
 Before commissioning, ensure that all hydraulic and mechanical connections
have been made.
 Ensure that no pollutants are able to penetrate when sealing the measuring ports.
Improper cleaning!
Damage to property!
 Cover all openings with the appropriate protective threads in order to prevent
cleaning agents from penetrating the system.
 Check that all seals and electric plug-in connections are firmly fitted to prevent
the penetration of cleaning agents.
 Do not use aggressive cleaning agents for cleaning. Clean the hydraulic power
unit using a suitable cleaning liquid.
 Do not use a high-pressure washer.
 Do not use compressed air for the cleaning at functional interfaces.
Environmental pollution caused by incorrect disposal!
Environmental pollution! Damage to property!
 Dispose of the hydraulic power unit, the hydraulic fluid and the packaging in
accordance with the applicable national regulations in your country.
 Dispose of the hydraulic fluid according to the applicable safety datasheetof
the hydraulic fluid.

20/128 Scope of delivery
Bosch Rexroth AG, CytroBox, RE 51057-B/11.19
4 Scope of delivery
Included within the scope of delivery:
• CytroBox hydraulic power unit
• Operating instructions (this document) including EC declaration of incorporation
• Operating instructions for the hydraulic power unit including attached devices,
e.g.hydraulic control, accumulator station
• Electric circuit diagram
• Line connector for port 20X1
• Mating connector for port21X1
• Network cable for port 22X1
• Connector plug for filling coupling
For required and amending documentation, refer to chapter 1.2.
For further information on optional components, refer to chapter 17.4
"Accessories".