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RE 66170-B/2019-05-15, Control block SB24/34, Bosch Rexroth AG

1 About this documentation

1.1 Validity of the documentation

This documentation applies for load-sensing control blocks SB24/34 of
Bosch Rexroth including the following control block segments:

• Connecting plate, central connecting plate, intermediate plate and end plate

• Control valves SB24-M, SB24-EHS and SB34-EHS

• Control valves EHR24-EHS and EHR24-EM2

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,
installation 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 SB24/34

66170

Load-sensing directional valves in sandwich plate design
SB24-EHS, SB34-EHS

66171

Load-sensing directional valves in sandwich plate design SB24-M

66172

Plates SB24, SB34

66173

Hitch control valves EHR5, EHR24-EM2, EHR24-EHS

66126

Load-sensing control block SB24/34

Contains all information required for directional valve installation

66170-10-R

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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3
4
5
6
7
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Summary of Contents for rexroth SB24

Page 1: ...Instruction manual RE 66170 B 2019 05 15 English Load sensing control block SB24 34 for mobile applications ...

Page 2: ...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 ...

Page 3: ... 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 designation 21 5 3 5 Flange figure 21 5 3 6 Connecting plate for fixed pump C2 22 5 3 7 Connecting plate for fixed pump C4 23 5 3 8 Connecting plate C3 25 5 3 9 Connecting plate for variable pump C6 26 5 3 10 Hitch control valve EHR24 EM2 28 5 3 11 Hitch control va...

Page 4: ...tomer specific coupling connection 60 7 6 7 Electric connection of the control block control block segment 61 8 Commissioning 62 8 1 Before initial commissioning 62 8 2 Initial commissioning 63 8 3 Air bleeding 64 8 3 1 Air bleeding at control block control block segment 64 8 3 2 Air bleeding at SB control valves 64 8 3 3 Air bleeding at control valves with EHS 65 8 3 4 Air bleeding at EHR control...

Page 5: ... 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 typ...

Page 6: ... www boschrexroth com mobile hydraulics catalog 1 3 Representation of information Standardized 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 saf...

Page 7: ...nt 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 ...

Page 8: ... direction from right to left da Double acting PRV Pressure relief valve DIN German Industrial Standard DMV Pressure reducing valve EHR Electrohydraulic hitch control EHS Electrohydraulic actuating unit EVL End valve with LS signaling direction from right to left EP End plate IPC Individual pressure compensator ISO International Organization for Standardization PWM Pulse width modulation RV Non re...

Page 9: ...completed machinery as defined in the EC Machinery Directive 2006 42 EC The component is exclusively intended to form partly completed machinery or complete machinery 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 direc...

Page 10: ...nowledge 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 circui...

Page 11: ... with 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 during transport Danger to life risk of injury or property damage In t...

Page 12: ...n 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 ...

Page 13: ...oves Contact with hydraulic fluid Danger to health damage to health e g eye injury skin damage toxication in the event of 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...

Page 14: ...l block segment on actuation elements Do not hit sensitive attachments 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 Ensure that the electronic components e g sensors are not electro statically charged e g during painting operations Risk of property damage due ...

Page 15: ...ports hydraulic lines and attachments e g measuring devices When plugging the ports no contamination may 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 ...

Page 16: ...se a suitable binding agent to collect any leaked hydraulic fluid Observe the safety data sheet for the hydraulic fluid and the specifications provided by the machine system manufacturer Danger due to heat development in components Adjacent products may be damaged Due to a heat development in components e g solenoids adjacent products may be damaged during assembly if no sufficient safety distance...

Page 17: ...Bosch Rexroth AG 4 Scope of delivery Included in the scope of delivery Control block or 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 ...

Page 18: ...ave 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...

Page 19: ...ments are slid The EHR control valve serves for electrohydraulic hitch control and is controlled via PWM pilot signal or CAN bus in a circuit with electronic control unit and sensors The control block is completed by the end valve version of the EHR control valve with LS signaling direction from right to left EVL The SB24 34 control valve serves for control of various actuators and is controlled m...

Page 20: ...ds by means of respective hitch deflection 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 th...

Page 21: ...6 Tank return flow Rx1 6 EHS pilot oil return flow RfB1 6 Secondary pressure relief valve return flow consumer port B depressurized X1 6 EHS pilot oil supply XD1 6 EHS pilot oil supply diagnosis Yin1 6 LS signal input Yo1 6 LS signal output YoD1 6 LS signal output diagnosis Rc1 6 Coupling relief Tie rod BL Block mounting 5 3 5 Flange figure Denomination Port for Information Inlet Block return flow...

Page 22: ...compensator LS pressure relief valve optional Primary pressure relief valve optional Shuttle valve optional The C2 connecting plate is used for SBx4 blocks with or without central connecting plate The inlet and return lines of the flow are directed via the C2 connecting plate Pressure compensator Controls the inlet flow to the connected SBx4 valves according to the block internal LS signal LS pres...

Page 23: ...g elements or external control functions 5 3 7 Connecting plate for fixed pump C4 Table 9 External ports Position Designation Information Inlet port Standard Inlet port optional 2 5 Return flow Standard Return flow optional 2 4 Weiterlauf LS signal diagnosis optional Supply pressure diagnosis optional Tie rod bore with thread Tie rod bore continuous optional Block mounting thread Table 10 Internal...

Page 24: ...lief valve Limits the pressure at the inlet port and indirectly also the pressure in the block internal P line by means of the pressure compensator Primary pressure relief valve Limits the pressure at the inlet port and indirectly also the pressure in the block internal P line NOTICE The primary pressure relief valve with its short response time and low flow is applied for limitation of the pressu...

Page 25: ...pretension optional RfB R bridge optional The C3 connecting plate is used for SBx4 blocks with central connecting plate Shuttle valve with spring pretension Discharges the higher LS pressure from the block internal channel Y and to port The spring pretension prevents pressure build up in if port is not occupied RFB R bridge Relieves the RfB return line for block internal return flow R The C3 conne...

Page 26: ...re relief valve optional Rx R non return valve optional Pressure reducing valve optional Pressure reducing valve switchable solenoid optional Threaded plug optional The C6 connecting plate is used for SBx4 blocks with or without central connecting plate Shuttle valve with spring pretension Discharges the higher LS pressure from the block internal channel Y and to port The spring pretension prevent...

Page 27: ...d deactivation of the pressure reduction function The C6 connecting plate without switchable solenoid pressure reducing valve is not equipped with manual operating elements or external control functions The version with switchable solenoid pressure reducing valve the pressure reduction function can be activated by energizing the switchable solenoid This way the pressure in the block internal EHS p...

Page 28: ... End valve closing side Tie rod bore Table 16 Internal functions Position Designation Information Individual pressure compensator Lifting spool valve axis Lowering valve cartridge valve axis Non return valve Secondary pressure relief valve Lifting solenoid Lowering solenoid Lifting control unit Lowering control unit Shuttle valve CAUTION The treaded plugs on the valve side and threaded plug must n...

Page 29: ...ow via return flow port Non return valve Prevents valve internal return flow from working port or Secondary pressure relief valve Secures the operating pressure in working port or Shuttle valve Directs the higher LS pressure through the control block control block segment It is operated via proportional solenoid coil of lifting solenoid and lowering solenoid by means of PWM pilot signal Lifting so...

Page 30: ...r lowering via secondary pressure relief valve End valve closing side Tie rod bore Table 18 Internal functions Position Designation Information Valve axis Individual pressure compensator with non return valve function Electrohydraulic EHS actuating unit Check valve Shuttle valve Threaded plug Secondary pressure relief valve Threaded plug R internal CAUTION The treaded plugs on the valve side and t...

Page 31: ... flow to working port and return via the return flow port Single acting sa with internal return flow Controls the inlet flow and return flow via working port Port is plugged by threaded plug Double acting da Controls the inlet flow and return flow via working ports and Check valve Prevents valve internal return flow in working port Shuttle valve Directs the higher LS pressure through the control b...

Page 32: ...32 78 About these products Bosch Rexroth AG Control block SB24 34 RE 66170 B 2019 05 15 EHR24 EHS sa with internal return flow EHR24 EHS da ...

Page 33: ...t optional Connection valve port side End valve closing side Tie rod bore Block mounting thread optional Coupling mounting thread Table 20 Internal functions Position Designation Information Valve axis Non return valve Check valve optional Check valve with thermal PRV optional Shuttle valve Spring assembly Detent unit optional Kick out optional Spring cap Cover plate optional Bearing block optiona...

Page 34: ...he working port The discharged volume is very low Shuttle valve Directs the higher LS pressure through the control block control block segment Spring assembly Control spool centering Detent unit Positioning of the control spool is supported by the detent unit The spring assembly is enclosed by the detent unit housing Kick out Disengages the deflected control spool in detent position at a set hydra...

Page 35: ...eck valve with thermal PRV 5 3 13 Control valve SB24 M with individual pressure compensator Table 21 External ports Position Designation Information Deflection side A optional Deflection side B optional Control spool deflection Working port Working port LS signal output Coupling port optional Connection valve port side End valve closing side Tie rod bore Block mounting thread optional Coupling mou...

Page 36: ...ional Cover plate optional Bearing block optional CAUTION The threaded plugs on the CVL port side the EVL closing side and threaded plug must not be removed The threaded bores are not designed for connection fittings Individual pressure compensator Controls the valve internal inlet flow of the block internal channel P The integrated non return valve function prevents the return flow to the block i...

Page 37: ...the control block control block segment Spring assembly Control spool centering Detent unit Positioning of the control spool is supported by the detent unit The spring assembly is enclosed by the detent unit housing Kick out Disengages the deflected control spool in detent position at a set hydraulic operating pressure from the detent position Control is realized mechanically via control spool def...

Page 38: ...t Working port optional Coupling port optional Connection valve port side End valve closing side Tie rod bore Block mounting thread optional Coupling mounting thread Table 24 Internal functions Position Designation Information Valve axis Individual pressure compensator with check valve function Electrohydraulic EHS actuating unit Check valve optional Check valve with thermal PRV optional Shuttle v...

Page 39: ...eturn flow to the block internal channel P Electrohydraulic EHS actuating unit Control is realized at port via CAN bus pilot signal The received CAN bus pilot signals are converted to respective deflection of the control spool Check valve Prevents valve internal return flow in working port Thermal PRV in check valve The thermal PRV is integrated into the check valve and is opened in case of an ina...

Page 40: ...king port Working port Coupling port optional Connection valve port side End valve closing side Tie rod bore Block mounting thread optional Coupling mounting thread Table 26 Internal functions Position Designation Information Valve axis Individual pressure compensator Electrohydraulic EHS actuating unit Check valve Check valve with thermal PRV optional Shuttle valve Threaded plug Cover cap with ma...

Page 41: ...flection of the control spool Check valve Prevents valve internal return flow in working port or Thermal PRV in check valve The thermal PRV is integrated into the check valve and is opened in case of an inadmissible temperature related pressure increase in the working port The discharged volume is very low Shuttle valve Directs the higher LS pressure through the control block control block segment...

Page 42: ...rol block SB24 34 RE 66170 B 2019 05 15 SB34 EHS 5 3 16 End plate E1 Table 27 External ports Position Designation Information Tie rod bore Table 28 Internal functions Position Designation Information Connection Y R End plate E1 Fluid plan Fluid plan ...

Page 43: ...pplies this line with the flow from the block internal line P Pressure reducing valve switchable solenoid Electrical activation and deactivation of the pressure reduction function The E2 end plate without switchable solenoid pressure reducing valve is not equipped with manual operating elements or external control functions The version with switchable solenoid pressure reducing valve the pressure ...

Page 44: ...nal Return flow optional LS signal input optional Tie rod bore with thread Block mounting thread optional Table 32 Internal functions Position Designation Information Shuttle valve optional Shuttle valve with spring pretension optional Pressure relief valve optional Pressure reducing valve optional Pressure reducing valve switchable solenoid optional Pressure reducing valve threaded plug optional ...

Page 45: ...t oil line X and supplies this line with the flow from the block internal line P Pressure reducing valve switchable solenoid Electrical activation and deactivation of the pressure reduction function Rx R non return valve Protects EHS pilot oil return line Rx against pressure peaks from block internal return flow R The central connecting plate without switchable solenoid pressure reducing valve is ...

Page 46: ...ock SB24 34 RE 66170 B 2019 05 15 Central connecting plate 5 3 19 Intermediate plate Table 33 External ports Position Designation Information Tie rod bore The intermediate plate does not have any internal function and serves as spacer Fluid plan Fluid plan ...

Page 47: ...tral connecting plate Mechanical control block Mechanical control block with EHR24 EM2 EHS control block EHS control block with EHR24 EHS Mechanical control block with electrohydraulic hitch control and central connecting plate EHS control block with electrohydraulic hitch control and central connecting plate Mixed control block with EHR24 EM2 Mixed control block with EHR24 EM2 and central connect...

Page 48: ...EHS control block with EVL EHS control block with EHR24 EHS with EVL Mechanical control block with EHR EM2 ZAP CVL and EVL EHS control block with EHR EHS ZAP CVL and EVL Mixed control block with SB24 M SB24 SB34 EHS EHR EM2 and SB24 M EVL Mixed control block with SB24 M EHR EM2 ZAP SB24 M EVL and SB34 EHS CVL For detailed combination options of the individual control block segments refer to chapte...

Page 49: ...About these products 49 78 RE 66170 B 2019 05 15 Control block SB24 34 Bosch Rexroth AG 5 5 Combination options Fig 2 Combination option of mechanical control block ...

Page 50: ...50 78 About these products Bosch Rexroth AG Control block SB24 34 RE 66170 B 2019 05 15 Fig 3 Combination option of EHS control block with pressure reducing valve in connecting plate ...

Page 51: ...bout these products 51 78 RE 66170 B 2019 05 15 Control block SB24 34 Bosch Rexroth AG Fig 4 Combination option of EHS control block with pressure reducing valve in end plate or central connecting plate ...

Page 52: ...ations in your country CAUTION Risk of injury due to heavy loads When carrying control blocks control block segments there is a risk of injury Only transport a control block control block segment by hand for a short time Observe the national regulations for manual transport Always use appropriate lifting lowering and moving techniques Use your personal protective equipment e g safety goggles safet...

Page 53: ...years Delayed commissioning long freight and storage times or a prolonged shutdown of Rexroth control blocks control block segments leads to corrosion Take additional corrosion protection measures to prevent this Warranty entitlement will be rendered void if the requirements and storage conditions are not adhered to or after expiration of the maximum storage time Recommended procedure after longer...

Page 54: ...Spare parts on page 69 Bosch Rexroth recommends the following procedure 1 Clean the control block control block segment 2 Plug all ports 3 Apply mineral oil on the unpainted flange surfaces and external seals of the control block control block segment 4 Protect sensitive attachments e g actuation elements sensors solenoids or valves with appropriate measures 5 When packaging the control block cont...

Page 55: ...eness see chapter 4 Scope of delivery on page 17 3 Dispose of the packaging in accordance with the regulations in your country 4 Return any reusable packaging to Bosch Rexroth 7 2 Assembly of control block segments to form a control block Assembly of directional valve discs and plates to form a control block is described in the related documentation 66170 10 R 7 3 Painting the control block contro...

Page 56: ...elect the installation position in compliance with the specifications in the respective data sheet 7 6 Assembly of the control block control block segment 7 6 1 Preparation 1 Check the information on the name plate to see if the control block control block segment is correct 2 Compare the material number and designation type code with the details in the order confirmation If the material number of...

Page 57: ...bore diameter Ø M10 40 8 Nm 15 mm 11 0 2 mm Fig 5 Control block mounting 7 6 3 Completion of assembly Remove the transport protection If necessary the control block control block segment may be delivered with protective covers and protective plugs They are not pressure resistant and have to be removed prior to connection 7 6 4 Mechanical connection of the control block control block segment Connec...

Page 58: ...ulic circuit diagram of the machine system manufacturer The ports and mounting threads are designed for the maximum pressure specified in the data sheet The machine system manufacturer is required to ensure that the connecting elements and lines correspond to the specified application conditions pressure flow hydraulic fluid temperature with the necessary safety factors Only connect hydraulic line...

Page 59: ...18 x 1 5 70 7 Nm M22 x 1 5 125 13 Nm M27 x 2 180 20 Nm M33 x 2 310 30 Nm To connect the control block control block segment to the hydraulic system 1 Remove the protective plugs or threaded plugs from the ports where the connections should be made according to the hydraulic circuit diagram 2 Make sure the sealing surfaces of the hydraulic ports and functional surfaces are not damaged 3 Use only cl...

Page 60: ...omer specific and deviate from the illustration Installation of customer specific coupling flange 1 Insert the O rings into directional valve ports and 2 Align coupling housing with flange surface to the directional valve 3 Align coupling housing and the mounting bores with the coupling mounting threads in directional valve 4 Tighten the coupling housing with the four socket head screws at the cou...

Page 61: ...ectric control layout Electrically controlled control blocks control block segments must be connected in accordance with the electrical circuit diagram of the machine For control blocks control block segments with electrical control and or mounted sensors please comply with the details given in the data sheet and the offer drawing e g Permissible voltage range Permissible current Correct pin assig...

Page 62: ...pressure compensators causing heavy impacts at the mechanical limit stops due to high vibration amplitudes In this respect damage or even destruction of components is to be expected Before commissioning it must be ensured that any air entrapped in the control block control block segment is completely removed This may be realized by application of a low hydraulic fluid flow of q 20 l min in all spo...

Page 63: ...essure surge 2 Slowly increase the flow 3 Maintain a flow of qPump 20 l min to the control block control block segment 4 Apply air bleeding at the control block control block segment see chapter 8 3 on page 64 Bosch Rexroth recommends separate air bleeding at the individual directional valves Also observe the information on air bleeding in the instruction manual of the machine 5 Carry out a leak t...

Page 64: ...examples with threaded port and hydraulic line Start air bleeding with the directional valve with the maximum distance to port P For SB control valves refer to chapter 8 3 2 For control valves with EHS refer to chapter 8 3 3 For EHR control valves refer to chapter 8 3 4 8 3 2 Air bleeding at SB control valves The hydraulic fluid flow via ports P and R must be applied The two consumer ports A1 and ...

Page 65: ...us connector with the CAN bus control unit of the vehicle Establish the pilot oil supply to the electrohydraulic actuating unit X and Rx At control blocks control block segments with switchable pressure reducing valve this valve has to be switched on Switch the directional valve at least 20 times with a frequency of 2 Hz between 100 lifting spool position 1 and floating spool position F Direction ...

Page 66: ...h the directional valve for at least 20 seconds and alternatively actuate lifting solenoid at 50 approx 1 4 A and the lowering solenoid at 100 max 3 3 A 8 4 Recommissioning after standstill Recommissioning is necessary if the control block control block segments have been decommissioned for more than 12 months have been disassembled have been repaired have been drained from hydraulic fluid or if h...

Page 67: ...c system and its control 9 1 Software description Communication and diagnosis with the electrohydraulic actuating unit can be realized with the EHS tool for reading and writing of parameters via the RS232 interface or via the CAN interface by means of conventional tools like VECTOR CANoe The features of the EHS software like parameterizibility diagnosis functions and monitoring limits are availabl...

Page 68: ...or aggressive cleaning agents Remove major external contamination and keep clean sensitive and important components such as solenoids valves indicators and sensors 10 2 Inspection and maintenance During inspection and maintenance the following points have to be checked Compliance with operating conditions Compliance of requirements for hydraulic fluids according to technical data sheet Block mount...

Page 69: ...s from Rexroth to repair the Rexroth control block control block segment Otherwise the functional reliability of the control block control block segment cannot be guaranteed and the warranty will be voided Spare parts lists are available from your responsible Bosch Rexroth service partner When ordering spare parts quote the material and serial number of the control block control block segment as w...

Page 70: ...ake sure the relevant system components are depressurized and deenergized 2 Secure the overall system according to the instructions of the manufacturer 11 3 Removal of control block control block segment from machine For disassembly of the control block control block segment proceed as follows 1 Remove the control block control block segment in accordance with the specifications of the machine sys...

Page 71: ...raulic fluid and the packaging material may lead to environmental pollution For disposal of the control block control block segment observe the following points 1 Drain the control block control block segment completely 2 Dispose of the control block control block segment and the packaging in accordance with the national regulations of your country 3 Dispose of the hydraulic fluid in accordance wi...

Page 72: ...etrofitting or conversion of the control block control block segment is described in the specific data sheet Before retrofitting or conversion of it has to be ensured that the modification does not cause any impairment or malfunction at the application Available accessories can be found in the respective data sheet Accessories are available from your Rexroth specialist dealer Addresses of our coun...

Page 73: ... the entire system Find out whether or not the control block control block segment was working as required in the entire system before the fault occurred Try to determine any changes to the entire system in which the control block control block segment is installed Have there been any changes to the application conditions or operating range of the product Has maintenance work recently been carried...

Page 74: ...ing torques Damaged flange surface Replace the control block segment F4 Fluctuations in pressure and flow Pressure oscillations in the system Ventilate the control block segments Ventilate the hydraulic system Dirt or foreign particles in the control block segment Clean the inside of the control block segments Ensure prescribed cleanliness of hydraulic fluids F5 Excessive temperature at the contro...

Page 75: ...trol blocks control block segments to the data sheets refer to Table 1 Required and supplementary documentation on page 5 The data sheets can be found online under www boschrexroth com various utilities mediadirectory Additional information can be found in the online product catalogue Mobile hydraulics www boschrexroth com mobile hydraulics catalog The order related technical data of your control ...

Page 76: ...lation conditions 56 Installation position 56 Intended use 9 L Lifting gear 52 M Maintenance 68 Malfunction table 74 O Operation 67 P Performance description 18 Personnel qualifications 10 Product description 19 R Recommissioning after standstill 66 Removal 70 Preparation 70 Realization 70 Repair 68 Required documentation 5 S Safety instructions 9 General 10 Product specific 11 Signal word 6 Scope...

Page 77: ...Alphabetical index 77 78 RE 66170 B 2019 05 15 Control block SB24 34 Bosch Rexroth AG ...

Page 78: ...aße 2 71701 Schwieberdingen Germany Phone 49 711 811 8481 info ma boschrexroth de www boschrexroth com Subject to change Printed in Germany RE 66170 B 2019 05 15 Your local contact person can be found at www boschrexroth com addresses ...

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