Related Manuals for Bosch rexroth A2FO Series
Summary of Contents for Bosch rexroth A2FO Series
- Page 1 Instruction manual Axial piston fixed pump A2FO series 70 RE 91405-01-B/2021-05-21, replaces: 05.2017, EN...
- Page 2 © Bosch Rexroth AG 2021. 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...
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Page 3: Table Of Contents
7.4.4 Installation with a coupling ................ 29 7.4.5 Installation on a gearbox ................30 7.4.6 Installation with cardan shaft ..............30 7.4.7 Completion of assembly ................31 7.4.8 Hydraulically connecting the axial piston unit ..........32 Performing flushing cycle ................36 RE 91405-01-B/2021-05-21, Bosch Rexroth AG... - Page 4 Preparing the components for storage or further use ......... 45 Disposal ������������������������������������������������������������������������������������������������� 46 Extension and conversion ����������������������������������������������������������������������� 46 Troubleshooting ������������������������������������������������������������������������������������� 47 14.1 How to proceed for troubleshooting ............47 14.2 Malfunction table ..................48 Technical data ���������������������������������������������������������������������������������������� 50 Alphabetical index ��������������������������������������������������������������������������������� 51 Bosch Rexroth AG, RE 91405-01-B/2021-05-21...
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Page 5: About This Documentation
Data sheet Describes the requirements on an environmentally acceptable hydraulic fluid 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 death or WARNING serious injury if it is not avoided. Identifies a dangerous situation that may result in minor to CAUTION moderate injury if it is not avoided. Property damage: The product or surrounding area may be NOTICE damaged. Bosch Rexroth AG, RE 91405-01-B/2021-05-21... -
Page 7: Symbols
Deutsches Institut für Normung (German Institute for Standardization) 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 91405-01-B/2021-05-21, 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 damages 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
• There is a risk of entanglement when operating the axial piston unit with a bare shaft end. Check whether or not your machine requires additional safety measures for your application. If necessary, make sure these are appropriately implemented. Bosch Rexroth AG, RE 91405-01-B/2021-05-21... -
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 Danger to life or risk of injury due to electric shock or property damage! ▶ Always diskonnect the voltage supply to the relevant machine/system part before assembling the product and/or connecting or diskonnecting the connector. Protect the machine/system against being re-energized. Bosch Rexroth AG, RE 91405-01-B/2021-05-21...
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Page 13: 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 should be intact. RE 91405-01-B/2021-05-21, Bosch Rexroth AG... -
Page 14: General Instructions On Property Damage And Product Damage
▶ Before installation, remove all fluids from the axial piston unit to prevent mixing with the hydraulic fluid used in the machine/system. ▶ Any mixture of hydraulic fluids of different manufacturers and/or different types of the same manufacturer is generally not permissible. Bosch Rexroth AG, RE 91405-01-B/2021-05-21... - Page 15 Leaks may lead to a leakage of hydraulic fluid. ▶ Take appropriate measures to protect the axial piston unit from chemical or corrosive environmental conditions. RE 91405-01-B/2021-05-21, Bosch Rexroth AG...
- Page 16 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. Bosch Rexroth AG, RE 91405-01-B/2021-05-21...
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Page 17: Scope Of Delivery
4 Scope of delivery Fig� 1: Axial piston unit Included in the scope of delivery: • Axial piston unit as per order confirmation The following parts come assembled on the unit: • Protective covers (1) • Protective plug/threaded plugs (2) RE 91405-01-B/2021-05-21, Bosch Rexroth AG... -
Page 18: About This Product
Hydraulic fluid flows into the piston chamber as the piston recedes on the suction side (5). At the same time, on the pressure side (4) the hydraulic fluid is pushed out of the cylinder chamber into the hydraulic system by the pistons. Bosch Rexroth AG, RE 91405-01-B/2021-05-21... -
Page 19: Product Identification
2 Designated area for inspection stamp 8 Serial number 3 Internal plant designation 9 Material number of the 4 Direction of rotation axial piston unit (viewed on drive shaft) – here: clockwise 10 Customer material number 5 Barcode 11 Type code 6 Weight RE 91405-01-B/2021-05-21, Bosch Rexroth AG... -
Page 20: Transport And Storage
▶ Use your personal protective equipment (e.g. safety goggles, safety gloves, suitable working clothes, safety shoes). ▶ Do not transport the axial piston unit by sensitive assembled parts (e.g. sensors or valves). ▶ Carefully place the axial piston unit on the seating to prevent it from being damaged. Bosch Rexroth AG, RE 91405-01-B/2021-05-21... -
Page 21: Transport With Lifting Devices
▶ Place the lifting strap around the axial piston unit in such a way that it does not pass over assembled parts (e.g. valves, piping) and that the axial piston unit is not suspended from assembled parts (see Fig. 5). Fig� 5: Transport with lifting strap RE 91405-01-B/2021-05-21, Bosch Rexroth AG... -
Page 22: Storing The Axial Piston Unit
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"... - Page 23 In such a case, consult your local contact person; you can find their contact information at www.boschrexroth.com/addresses Bosch Rexroth recommends the following procedure: 1� Clean the axial piston unit; see chapter 10.1 "Cleaning and care" on page 42. 2� Drain the axial piston unit.
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Page 24: 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 25 ▶ Use fiber-free cleaning cloth. ▶ Use suitable, mild cleaning agents to remove lubricants and other heavy contamination. Do not allow cleaning agents to enter into the hydraulic system. RE 91405-01-B/2021-05-21, Bosch Rexroth AG...
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Page 26: Installation Position
Minimum required distance to Filling/air bleeding reservoir bottom (100 mm) Suction port Baffle (baffle plate) Table 8: Below-reservoir installation Installation position Air bleed Filling 1 (drive shaft horizontal) 2 (drive shaft horizontal) 3 (drive shaft vertically down) 4 (drive shaft vertically up) Bosch Rexroth AG, RE 91405-01-B/2021-05-21... -
Page 27: Above-Reservoir Installation
Baffle (baffle plate) Minimum required immersion depth t min (200 mm) Table 9: Above-reservoir installation Installation position Air bleed Filling 5 (drive shaft horizontal) 6 (drive shaft horizontal) 7 (drive shaft vertically down) 8 (drive shaft vertically up) RE 91405-01-B/2021-05-21, Bosch Rexroth AG... -
Page 28: Installing The Axial Piston Unit
For standard versions, the data sheet 91405 contains all required installation dimensions as well as the position and dimensions of the ports. If necessary, an installation drawing can be requested. Also observe the manuals provided by the manufacturers of the other hydraulic components when selecting the required tools. Bosch Rexroth AG, RE 91405-01-B/2021-05-21... -
Page 29: General Instructions
The drive shaft of the axial piston unit is equipped with a female thread. Use this female thread to pull the coupling element onto the drive shaft. The size of the female thread can be seen in the installation drawing. RE 91405-01-B/2021-05-21, Bosch Rexroth AG... -
Page 30: Installation On A Gearbox
NOTICE! Damage to the axial piston unit and leaks at the shaft seal due to incorrectly installed cardan shaft! Improperly installed cardan shafts generate unbalances. This results in vibrations and inadmissible axial and radial forces on the drive shaft. ▶ Observe the cardan shaft manufacturer's assembly instructions. Bosch Rexroth AG, RE 91405-01-B/2021-05-21... -
Page 31: Completion Of Assembly
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. Fig� 10: Removing transport protection... -
Page 32: Hydraulically Connecting The Axial Piston Unit
– The hose must be pressure-resistant, also to external air pressure. • Pressure line – For the pressure lines, use only pipes, hoses and connecting elements rated for the working pressure range specified in data sheet 91405 (see Table 10). Bosch Rexroth AG, RE 91405-01-B/2021-05-21... - Page 33 ▶ Use the drawings (installation drawing) to determine the required stud end for each fitting. ▶ Make sure the right fittings, mounting bolts and threaded plugs are installed. ▶ For all female threads, use a stud end from the same system of units and of the correct size. RE 91405-01-B/2021-05-21, Bosch Rexroth AG...
- Page 34 Observe the manufacturer's specifications regarding the tightening torques of the fittings used. • Female threads in the axial piston unit: The max. permissible tightening torques M are the maximum values for the G max female threads and should not be exceeded. For values, see Table 11. Bosch Rexroth AG, RE 91405-01-B/2021-05-21...
- Page 35 The tightening torques for the threaded plugs are valid for the condition "dry" and "lightly oiled". The tightening torques for the threaded plugs are valid for the condition "dry" – in the condition "lightly oiled", the tightening torques for M10 × 1 are reduced to 10 Nm and for M12 × 1.5 to 17 Nm. RE 91405-01-B/2021-05-21, Bosch Rexroth AG...
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Page 36: Performing Flushing Cycle
Counter-clockwise rotation: S to A 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 37: 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 38 A2FO series 70 | Commissioning Use only a hydraulic fluid that corresponds to the following requirements: You can find details of the minimum requirements on hydraulic fluids in Bosch Rexroth data sheets 90220 and 90221. The titles of the data sheets can be found in Table 1 "Required and supplementary documentation"...
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Page 39: Testing The Hydraulic Fluid Supply
▶ Before the functional test, check whether the piping specified in the hydraulic circuit diagram has been installed. Once you have tested the hydraulic fluid supply, perform a functional test of the machine/system. The functional test should be performed according to the instructions of the machine/system manufacturer. RE 91405-01-B/2021-05-21, Bosch Rexroth AG... -
Page 40: 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 41: 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 91405-01-B/2021-05-21, Bosch Rexroth AG... -
Page 42: 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 43: 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 44: 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 45: 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 22. RE 91405-01-B/2021-05-21, Bosch Rexroth AG... -
Page 46: Disposal
– Seals 13 Extension and conversion Do not modify the axial piston unit and/or its assembled parts. The warranty from Bosch Rexroth only applies to the configuration as delivered. In case of extensions or conversions, the warranty will be invalidated. Bosch Rexroth AG, RE 91405-01-B/2021-05-21... -
Page 47: 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: www.boschrexroth.com/addresses. RE 91405-01-B/2021-05-21, Bosch Rexroth AG... -
Page 48: Malfunction Table
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 No or insufficient flow Insufficient air bleeding of the hydraulic system Fill the axial piston unit, suction line for the... - Page 49 Check temperature range and use suitable hydraulic fluid Wear or mechanical damage to the Replace axial piston unit axial piston unit Contact Bosch Rexroth Service Output unit defective (e.g. hydraulic motor Contact machine/system manufacturer or cylinder) Pressure/flow fluctuations/ Insufficient air bleeding of the hydraulic system Fill the axial piston unit, suction line for the...
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Page 50: Technical Data
The permissible technical data for your axial piston unit can be found on the data sheet 91405. The data sheet can be found in the online product catalog at www.boschrexroth.com/p-A2FO-70 Order-related technical data for your axial piston unit can be found in the order confirmation. Bosch Rexroth AG, RE 91405-01-B/2021-05-21... -
Page 51: Alphabetical Index
Preparing ......45 Installation ......24 Repair ........43 Completion ......31 Replacement ......45 General instructions ... 29 Required documentation ..5 On a gearbox ....... 30 Running-in phase ....40 On gearbox ......30 Preparation ......28 RE 91405-01-B/2021-05-21, Bosch Rexroth AG... - Page 52 Bosch Rexroth AG Glockeraustraße 2 89275 Elchingen Germany Phone +49 7308 82-0 info@boschrexroth.de www.boschrexroth.com Your local contact person can be found at: www.boschrexroth.com/addresses Subject to change RE 91405-01-B/2021-05-21...