Related Manuals for Bosch rexroth 12 Series
Summary of Contents for Bosch rexroth 12 Series
- Page 1 Instruction manual Axial piston variable pump A15VSO/A15VLO series 12 RE 92802-01-B/2023-03-27, EN...
- Page 2 © Bosch Rexroth AG 2023. 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 particular condition or suitability for a certain application can be derived from our information.
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Page 3: Table Of Contents
7.4.6 Installation with cardan shaft ��������������������������������������������������������������������� 33 7.4.7 Completion of installation �������������������������������������������������������������������������� 33 7.4.8 Hydraulically connecting the axial piston unit �������������������������������������������� 35 7.4.9 Electrically connecting the axial piston unit ����������������������������������������������� 41 Performing flushing cycle ��������������������������������������������������������������������������� 42 RE 92802-01-B/2023-03-27, Bosch Rexroth AG... - Page 4 Preparing the components for storage or further use ��������������������������������� 51 Disposal ������������������������������������������������������������������������������������������������� 52 Extension and conversion ����������������������������������������������������������������������� 52 Troubleshooting ������������������������������������������������������������������������������������� 53 14.1 How to proceed for troubleshooting ����������������������������������������������������������� 53 14.2 Malfunction table ��������������������������������������������������������������������������������������� 54 Technical data ���������������������������������������������������������������������������������������� 57 Alphabetical index ��������������������������������������������������������������������������������� 58 Bosch Rexroth AG, RE 92802-01-B/2023-03-27...
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Page 5: About This Documentation
Data sheet Describes the requirements on fire-resistant, water-free hydraulic fluids (HFDR/HFDU) for operation with Rexroth hydraulic components and assists you in selecting a hydraulic fluid for your hydraulic system. Bosch Rexroth Fluid Rating List for Rexroth hydraulic components 90245 Data sheet (pumps and motors) Contains the hydraulic fluids positively evaluated by Bosch Rexroth. -
Page 6: Representation Of Information
Identifies a dangerous situation that may result in minor CAUTION 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. Bosch Rexroth AG, RE 92802-01-B/2023-03-27... -
Page 7: Designations
Power control with pressure controller and load sensing International Organization for Standardization Japan Industrial Standard Rexroth document in the English language VDI 2230 Guideline for the systematic calculation of heavy-duty threaded connections and cylindrical screw joints from the VDI (Verein Deutscher Ingenieure - Association of German Engineers) RE 92802-01-B/2023-03-27, Bosch Rexroth AG... -
Page 8: Safety Instructions
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): •... -
Page 9: Personnel Qualifications
• In particular, fully understanding the relationships with regard to safety devices • Knowledge regarding the function and interaction of hydraulic components. Bosch Rexroth offers you measures supporting training in specific areas. You can find an overview of the training contents on the Internet at: www.boschrexroth.com/training�... -
Page 10: General Safety Instructions
EMI. Potential electromagnetic interference (EMI) exists if the solenoid is energized with a modulated direct current (e.g. PWM signal). Appropriate testing and measures should be taken by the machine manufacturer to ensure other components or operators (e.g., with pacemaker) are not affected by this potential. Bosch Rexroth AG, RE 92802-01-B/2023-03-27... -
Page 11: Product-Specific Safety Instructions
Operating the unit above the maximum permissible pressure can cause components to burst and hydraulic fluid to escape under high pressure. ▶ Changes to the factory settings may only be made by Bosch Rexroth specialists. ▶ In addition, a pressure relief valve is required in the hydraulic system as back-up. - Page 12 ▶ The use of the manual override is only permitted with limited technical data (e.g. 0.25 × maximum data). ▶ Check whether or not your machine requires additional safety measures for your application to avoid unintentional actuation. If necessary, make sure these are appropriately implemented. ▶ Wear suitable protective clothing. Bosch Rexroth AG, RE 92802-01-B/2023-03-27...
- Page 13 (external or internal flow filtration) will not rule out a fault but merely reduce the risk. ▶ Check whether your application requires remedial measures on your machine in order to bring the driven consumer to a safe position (e.g. safe stop). ▶ If necessary, make sure these are appropriately implemented. RE 92802-01-B/2023-03-27, Bosch Rexroth AG...
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Page 14: Personal Protective Equipment
▶ Check how to safely get on top of the machine/system. 2�7 Personal protective equipment Personal protective equipment is the responsibility of the user of the axial piston unit. Observe the safety regulations in your country. All pieces of personal protective equipment must be intact. Bosch Rexroth AG, RE 92802-01-B/2023-03-27... -
Page 15: General Instructions On Property Damage And Product Damage
Make certain that the axial piston pump does suck in hydraulic fluid and build up pressure directly after start-up. In case of longer standstill, suitable measures have to be taken to prevent draining of the suction line. RE 92802-01-B/2023-03-27, Bosch Rexroth AG... - Page 16 ▶ Dispose of the axial piston unit, hydraulic fluid and packaging in accordance with the regulations in your country. ▶ Dispose of the hydraulic fluid in accordance with the applicable safety data sheet for the hydraulic fluid. Bosch Rexroth AG, RE 92802-01-B/2023-03-27...
- Page 17 The warranty only applies to the machine configuration as delivered. The warranty will be voided if the product is incorrectly installed, commissioned or operated, or if it is used or handled improperly. RE 92802-01-B/2023-03-27, Bosch Rexroth AG...
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Page 18: Scope Of Delivery
• Protective plug (3) • Steel flange covers (the flange cover on the suction port provides a secure stand and protection for the V stop) (4) g max • For version with through drive, protective cover incl. mounting bolts (5) Bosch Rexroth AG, RE 92802-01-B/2023-03-27... -
Page 19: About This Product
6 Version with through 10 Piston 2 Retaining plate drive 11 Slipper pad 3 High-pressure side 7 Control plate 12 Swashplate 4 Charge pump (impeller) (distributor plate) (cradle) 5 Version without 8 Suction side through drive 9 Cylinder RE 92802-01-B/2023-03-27, Bosch Rexroth AG... -
Page 20: Functional Description
This also facilitates cold starting at low temperatures and high viscosity of the hydraulic fluid. Externally increasing the inlet pressure is therefore unnecessary in most cases. Charging the reservoir with compressed air is not permissible. Fig� 3: Circuit diagram A15VLO with charge pump Bosch Rexroth AG, RE 92802-01-B/2023-03-27... -
Page 21: Product Identification
15 Direction of rotation (viewed on 5 Type code drive shaft) – here: clockwise 6 Manufacturing date 16 Internal plant designation 7 Serial number 17 QR code 8 Rotational speed (optional) 9 Pressure controller setting (optional) 10 Displacement (optional) RE 92802-01-B/2023-03-27, Bosch Rexroth AG... -
Page 22: Transport And Storage
▶ Only manually transport the axial piston unit for a short period of time. Observe the national regulations in your country for manual transport. ▶ Always use appropriate lifting, lowering and moving techniques. ▶ Use your personal protective equipment (e.g. safety goggles, safety gloves, suitable working clothes, safety shoes). Bosch Rexroth AG, RE 92802-01-B/2023-03-27... -
Page 23: Transport With Lifting Devices
▶ Make sure that the axial piston unit is securely fixed with the lifting strap. ▶ Only guide the axial piston unit by hand for fine positioning and to avoid swinging. ▶ Never step or grip under suspended loads. RE 92802-01-B/2023-03-27, Bosch Rexroth AG... -
Page 24: Storing The Axial Piston Unit
90312. Table 8: Storage time with factory-supplied corrosion protection Storage conditions Standard corrosion Long-term corrosion protection protection (optional) Closed, dry room, Maximum 12 months Maximum 24 months uniform temperature between +5 °C and +20 °C. Undamaged and closed corrosion protection film. Bosch Rexroth AG, RE 92802-01-B/2023-03-27... - Page 25 Once the max. storage time has elapsed, we recommend that you have the axial piston unit checked by your Bosch Rexroth service partner. For questions regarding repair and spare parts, contact your proper Bosch Rexroth service partner or the service department of the manufacturer's plant of the axial piston unit, see chapter 10.5 "Spare parts"...
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Page 26: Installation
• Installation drawing for the axial piston unit (can be obtained from your contact person at Bosch Rexroth, if required) • Hydraulic circuit diagram for the axial piston unit (in the data sheet and on the installation drawing) •... - Page 27 Apart from that, regular checks and/or cleaning is necessary. Observe the information in chapter 10.1 "Cleaning and care" on page 48 and Table 11 "Inspection schedule" on page 49� RE 92802-01-B/2023-03-27, Bosch Rexroth AG...
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Page 28: Installation Position 1
Installation position 1 Installation position 2 Installation position 3 Air bleed Filling Air bleed Filling Air bleed Filling S + T S + T S + T t min t min t min Bosch Rexroth AG, RE 92802-01-B/2023-03-27... -
Page 29: Inside-Reservoir Installation
Please consult your proper contact person at Bosch Rexroth to commission an examination of the medium compatibility. Exception: Installation of the axial piston unit with E2 /E6 control. However only with Hirschmann connector and if mineral hydraulic fluids are used and the fluid temperature in the reservoir does not exceed 80 °C. -
Page 30: Above-Reservoir Installation
If the material number for the axial piston unit does not match the one in the order confirmation, contact your local contact person for clarification. You can find their contact information at https://addresses.boschrexroth.com Bosch Rexroth AG, RE 92802-01-B/2023-03-27... -
Page 31: Dimensions
• On the drive of an axial piston unit, a cardan shaft may cause vibrations and excessive rotary angular acceleration. Depending on the frequency and temperature, this may cause leaks in the shaft seal and damage the rotary group. RE 92802-01-B/2023-03-27, Bosch Rexroth AG... -
Page 32: Installation With A Coupling
Make sure no excessive axial and radial forces are acting on the drive shaft. 8� Details on the required tools and tightening torques for the mounting bolts are available from the machine/system manufacturer. Bosch Rexroth AG, RE 92802-01-B/2023-03-27... -
Page 33: Installation On A Gearbox
Use a suitable tool for this to prevent damage to the sealing and functional surfaces. If sealing or functional surfaces are damaged, contact your Bosch Rexroth service partner or the service department of the manufacturer's plant of the axial piston unit. - Page 34 Important for LRDRS0 controllers! Port X is equipped with a protective plug (3). This port must be connected. Non-compliance could lead to malfunctions or damage. You will find other ports for the respective control in the data sheet 92802� Bosch Rexroth AG, RE 92802-01-B/2023-03-27...
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Page 35: Hydraulically Connecting The Axial Piston Unit
If the axial piston unit is to be operated without through drive unit, it has to be closed by means of a pressure-tight cover before the commissioning! For questions regarding conversions, contact your proper Bosch Rexroth service partner or the service department of the plant that manufactured the axial piston unit;... - Page 36 The system of units, the kind of seal and the size of female thread and stud ends (e.g. threaded plug) must all match. There is a risk of confusion due to the limited ways of visually telling them apart. Bosch Rexroth AG, RE 92802-01-B/2023-03-27...
- Page 37 ▶ For all female threads, use a stud end from the same system of units and of the correct size. Port overview Fig� 10: Port overview A15VLO with E2DR controller, clockwise rotation Fig� 11: Port overview A15VSO with LRDRS0 control, clockwise rotation RE 92802-01-B/2023-03-27, Bosch Rexroth AG...
- Page 38 Depending on the application, momentary pressure peaks can occur. Keep this in mind when selecting measuring devices and fittings. O = Must be connected (plugged on delivery) X = Plugged (in normal operation) Depending on the installation position, T or T must be connected (see chapter 7.3 "Installation position" on page 28). Bosch Rexroth AG, RE 92802-01-B/2023-03-27...
- Page 39 These plugs must not be opened on the customer side. If you have opened the threaded plug accidentally, please contact your local contact person to ensure safe re-closing of the plug. You can find the address at https://addresses.boschrexroth.com RE 92802-01-B/2023-03-27, Bosch Rexroth AG...
- Page 40 70 Nm 5/16 in 7/8-14 UNF-2B 240 Nm 110 Nm 3/8 in 1 1/16-12 UN-2B 360 Nm 170 Nm 9/16 in 1 5/16-12 UN-2B 540 Nm 270 Nm 5/8 in 1 5/8-12 UN-2B 960 Nm 320 Nm 3/4 in 1 7/8-12 UN-2B 1200 Nm 390 Nm 3/4 in Bosch Rexroth AG, RE 92802-01-B/2023-03-27...
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Page 41: Electrically Connecting The Axial Piston Unit
1� Switch off the power supply to the relevant machine/system component. 2� Electrically connect the axial piston unit (12 or 24 V). Before establishing the connection, check whether the connector protective covers have been removed and the connector and all seals are intact. RE 92802-01-B/2023-03-27, Bosch Rexroth AG... -
Page 42: Performing Flushing Cycle
Fig� 13: HIRSCHMANN connector 7�5 Performing flushing cycle In order to remove foreign particles from the system, Bosch Rexroth recommends a flushing cycle for the hydraulic system before the first commissioning. To avoid internal contamination, do not include the axial piston unit in the flushing cycle. -
Page 43: Commissioning
▶ Make sure all electrical and hydraulic ports are connected or plugged. ▶ Commission only a fully installed, fully functioning product with original accessories from Bosch Rexroth. 8�1 Initial commissioning During all commissioning work on the axial piston unit, observe the general safety instructions and intended use detailed in chapter 2 "Safety instructions"... - Page 44 A15VSO/A15VLO series 12 | Commissioning You can find details of the minimum requirements on hydraulic fluids in Bosch Rexroth data sheets 90220, 90221 and 90222. The titles of the data sheets can be found in Table 1 "Required and supplementary documentation"...
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Page 45: Testing The Hydraulic Fluid Supply
The axial piston unit is tested for functional capability and performance before delivery according to the technical data. During commissioning, make sure the axial piston unit was installed in the machine/system as intended. RE 92802-01-B/2023-03-27, Bosch Rexroth AG... -
Page 46: Running-In Phase
10 operating hours is concluded. To ensure that contamination in the hydraulic system does not damage the axial piston unit, Bosch Rexroth recommends the following procedure after the running-in phase: ▶ After the running-in phase, have a hydraulic fluid sample analyzed for the required cleanliness level. -
Page 47: Operation
For this reason, this chapter of the manual does not contain any information on adjustment options. Use the product only within the performance range specified in the technical data. The machine/system manufacturer is responsible for proper project planning of the hydraulic system and its control. RE 92802-01-B/2023-03-27, Bosch Rexroth AG... -
Page 48: Maintenance And Repair
10�2 Inspection In order for the axial piston unit to be reliable and long-lasting, Bosch Rexroth recommends inspecting the hydraulic system and axial piston unit on a regular basis, and documenting and archiving the following operating conditions:... -
Page 49: Maintenance
10�4 Repair Bosch Rexroth offers a comprehensive range of services for the repair of Rexroth axial piston units. Repairs on the axial piston unit and its assembled parts should only be performed by service centers certified by Bosch Rexroth. -
Page 50: Spare Parts
10�5 Spare parts CAUTION Use of unsuitable spare parts! Spare parts that do not meet the technical requirements specified by Bosch Rexroth can cause injury and property damage! ▶ Only use original spare parts from Rexroth to repair the Rexroth axial piston units, otherwise the functional reliability of the axial piston unit cannot be guaranteed, and the warranty will be voided. -
Page 51: Removal And Replacement
6� Remove the axial piston unit. Use a suitable lifting device. 7� Completely drain the axial piston unit. 8� Plug all openings. 11�4 Preparing the components for storage or further use ▶ Proceed as described in chapter 6.2 "Storing the axial piston unit" on page 24. RE 92802-01-B/2023-03-27, Bosch Rexroth AG... -
Page 52: Disposal
Changes to settings on the customer side should only be made using the product-specific setting instructions. The warranty from Bosch Rexroth only applies to the product as delivered. The warranty will be voided if the unit is modified or extended. -
Page 53: Troubleshooting
▶ Try to get a clear idea of the cause of the fault. Directly ask the (machine) operator. ▶ Document the work carried out. ▶ If the fault cannot be corrected, please refer to one of the contract addresses at: https://addresses.boschrexroth.com� RE 92802-01-B/2023-03-27, Bosch Rexroth AG... -
Page 54: Malfunction Table
Optimize the adjustment of the controller of the axial piston unit and the pressure limitation in the hydraulic system Mechanical damage to the axial piston unit Replace axial piston unit (e.g. bearing damage) Contact Bosch Rexroth Service Increased, unusual vibration Bearings worn Contact Bosch Rexroth Service Bosch Rexroth AG, RE 92802-01-B/2023-03-27... - Page 55 Malfunction of the control device or controller Contact Bosch Rexroth Service of the axial piston unit Control of the control device defective Check control (contact machine/system manufacturer or Bosch Rexroth Service) Wear or mechanical damage to the Replace axial piston unit axial piston unit Contact Bosch Rexroth Service...
- Page 56 Malfunction of the control device or controller Contact Bosch Rexroth Service of the axial piston unit Control of the control device defective Check control (contact machine/system manufacturer or Bosch Rexroth Service) Wear or mechanical damage to the Replace axial piston unit axial piston unit Contact Bosch Rexroth Service Output unit defective (e.g. hydraulic motor...
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Page 57: Technical Data
(e.g. high-pressure relief valve, axial piston unit and the pressure safeguarding pressure controller) in the hydraulic system Contact Bosch Rexroth Service Contact machine/system manufacturer Axial piston unit worn Replace axial piston unit; contact Bosch Rexroth Service... -
Page 58: Alphabetical Index
Flushing cycle ������������������������������� 42 Piston ������������������������������������������� 19 Functional description Port overview ������������������������������� 37 Control ��������������������������������������� 20 Product description ���������������������� 19 Functional test ������������������������������ 45 Property damage �������������������������� 15 Pump function ������������������������������ 20 High-pressure side ������������������������ 19 Qualification ����������������������������������� 9 Bosch Rexroth AG, RE 92802-01-B/2023-03-27... - Page 59 Symbols ����������������������������������������� 6 Technical data������������������������������� 57 Tightening torques ������������������������ 39 Tools��������������������������������������������� 51 Transport �������������������������������������� 22 by hand �������������������������������������� 22 with eye bolt ������������������������������ 23 with lifting strap ������������������������ 23 Transporting ��������������������������������� 22 Transport protection ��������������������� 34 Troubleshooting ���������������������������� 53 RE 92802-01-B/2023-03-27, Bosch Rexroth AG...
- Page 60 Bosch Rexroth AG An den Kelterwiesen 14 72160 Horb a.N. Germany Phone +49 7451 92-0 sales.industry.horb@boschrexroth.de www.boschrexroth.com Your local contact person can be found at: https://addresses.boschrexroth.com Subject to change RE 92802-01-B/2023-03-27...