7.4.5 Installation on a gearbox ���������������������������������������������������������������������������� 32 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 ����������������������������������������������� 40 Performing flushing cycle ��������������������������������������������������������������������������� 41 RE 92512-01-B/2023-03-27, Bosch Rexroth AG...
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Preparing the components for storage or further use ��������������������������������� 50 Disposal ������������������������������������������������������������������������������������������������� 51 Extension and conversion ����������������������������������������������������������������������� 51 Troubleshooting ������������������������������������������������������������������������������������� 52 14.1 How to proceed for troubleshooting ����������������������������������������������������������� 52 14.2 Malfunction table ��������������������������������������������������������������������������������������� 53 Technical data ���������������������������������������������������������������������������������������� 57 Alphabetical index ��������������������������������������������������������������������������������� 58 Bosch Rexroth AG, RE 92512-01-B/2023-03-27...
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.
Identifies a dangerous situation that may result in minor to CAUTION 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 92512-01-B/2023-03-27...
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 92512-01-B/2023-03-27, Bosch Rexroth AG...
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): •...
• 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�...
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 92512-01-B/2023-03-27...
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.
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▶ 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 92512-01-B/2023-03-27...
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▶ 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 92512-01-B/2023-03-27, Bosch Rexroth AG...
▶ 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. Bosch Rexroth AG, RE 92512-01-B/2023-03-27...
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 92512-01-B/2023-03-27, Bosch Rexroth AG...
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▶ 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 92512-01-B/2023-03-27...
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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 92512-01-B/2023-03-27, Bosch Rexroth AG...
• 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 92512-01-B/2023-03-27...
5 Version without 8 Suction side 2 Retaining plate through drive 9 Cylinder 3 High-pressure side 6 Version with 10 Piston 4 Charge pump through drive 11 Slipper pad (impeller) 7 Control plate 12 Swashplate (cradle) (distributor plate) RE 92512-01-B/2023-03-27, Bosch Rexroth AG...
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 92512-01-B/2023-03-27...
15 Direction of rotation 5 Type code (viewed on drive shaft) – 6 Manufacturing date here: clockwise 7 Serial number 16 Internal plant designation 8 Rotational speed (optional) 17 QR code 9 Pressure controller setting (optional) 10 Displacement (optional) RE 92512-01-B/2023-03-27, Bosch Rexroth AG...
▶ 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 92512-01-B/2023-03-27...
▶ 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 92512-01-B/2023-03-27, Bosch Rexroth AG...
Table 8: Storage time with factory-supplied corrosion protection Storage conditions Standard corrosion Long-term corrosion protection protection (optional) Closed, dry room, uniform Maximum 12 months Maximum 24 months temperature between +5 °C and +20 °C. Undamaged and closed corrosion protection film. Bosch Rexroth AG, RE 92512-01-B/2023-03-27...
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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"...
• 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) •...
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Apart from that, regular checks and/or cleaning is necessary. Observe the information in chapter 10.1 "Cleaning and care" on page 47 and Table 11 "Inspection schedule" on page 48� RE 92512-01-B/2023-03-27, Bosch Rexroth AG...
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 92512-01-B/2023-03-27...
Please consult your proper contact person at Bosch Rexroth to commission an examination of the medium compatibility. With small tank sizes or unfavorable suction conditions, we recommend fitting a suction pipe to suction port S and fitting a pipe to drain port T...
4� Check the permissible direction of rotation of the axial piston unit (on the name plate) and make sure that this corresponds to the direction of rotation of the drive motor. Bosch Rexroth AG, RE 92512-01-B/2023-03-27...
The shared drain line must be dimensioned to ensure that the maximum permissible case pressure of all connected units is not exceeded in any operating condition, particularly at cold start. If this is not possible, separate drain line must be laid, if necessary. RE 92512-01-B/2023-03-27, Bosch Rexroth AG...
(observe tolerances) and that no excessive axial or radial forces are acting on the drive shaft of the axial piston unit (installation length). ▶ Protect the drive shaft against frictional corrosion by ensuring permanent lubrication. ▶ Fasten the axial piston unit at the installation location. Bosch Rexroth AG, RE 92512-01-B/2023-03-27...
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. RE 92512-01-B/2023-03-27, Bosch Rexroth AG...
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Important for LRDRS. 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 92512� Bosch Rexroth AG, RE 92512-01-B/2023-03-27...
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;...
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▶ 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. Bosch Rexroth AG, RE 92512-01-B/2023-03-27...
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Installation | A15VO/A15VLO series 12 37/60 Port overview Fig� 10: Port overview A15VLO with E2DR controller, clockwise rotation Fig� 11: Port overview A15VO with LRDRS. controller, clockwise rotation Fig� 12: Port overview A15VO with LRDRS. controller, counter-clockwise rotation RE 92512-01-B/2023-03-27, Bosch Rexroth AG...
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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 92512-01-B/2023-03-27...
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8 mm M20 × 1.5 170 Nm 80 Nm 10 mm M22 × 1.5 210 Nm 100 Nm 10 mm M27 × 2 330 Nm 170 Nm 12 mm M30 × 2 420 Nm 215 Nm 17 mm M33 × 2 540 Nm 310 Nm 17 mm M42 × 2 720 Nm 330 Nm 22 mm M48 × 2 900 Nm 420 Nm 22 mm RE 92512-01-B/2023-03-27, Bosch Rexroth AG...
For axial piston units with electrical control and/or mounted sensors, observe the parameters in data sheet 92512, e.g.: • Permissible voltage range • Permissible current • Correct pin assignment • Recommended electrical control units Bosch Rexroth AG, RE 92512-01-B/2023-03-27...
(width across flats SW26, 12kt DIN 3124)� 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.
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, 90221 and 90222. The titles of the data sheets can be found in Table 1 "Required and supplementary documentation"...
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Bosch Rexroth evaluates hydraulic fluids on the basis of the Fluid Rating according to data sheet 90235. For hydraulic fluids which have been positively evaluated in the Fluid Rating, please refer to data sheet 90245 "Bosch Rexroth fluid rating list for Rexroth hydraulic components (pumps and motors)".
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. Bosch Rexroth AG, RE 92512-01-B/2023-03-27...
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.
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. Bosch Rexroth AG, RE 92512-01-B/2023-03-27...
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:...
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.
Address all questions regarding spare parts to your proper Bosch Rexroth Service partner or the service department of the manufacturer's plant of the axial piston unit.
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. Bosch Rexroth AG, RE 92512-01-B/2023-03-27...
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.
▶ 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� Bosch Rexroth AG, RE 92512-01-B/2023-03-27...
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 RE 92512-01-B/2023-03-27, Bosch Rexroth AG...
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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...
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Malfunction of the control device or Contact Bosch Rexroth Service controller 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 axial piston Replace axial piston unit unit Contact Bosch Rexroth Service...
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(e.g. high-pressure relief valve, pressure axial piston unit and the pressure safeguarding controller, pressure reducing valve) in the hydraulic system Contact Bosch Rexroth Service Contact machine/system manufacturer Axial piston unit worn Replace axial piston unit; contact Bosch Rexroth Service...
92512� The data sheet can be found in the Download Center: www.boschrexroth.com/ics/ref/media/92512 Additional information can be found in the Rexroth store: www.boschrexroth.com/p-A15VO-1x Order-related technical data for your axial piston unit can be found in the order confirmation. RE 92512-01-B/2023-03-27, Bosch Rexroth AG...
Distributor plate ��������������������������� 19 Drive shaft ������������������������������������ 19 Name plate ����������������������������������� 21 Notes Eye bolt ���������������������������������������� 23 General �������������������������������������� 31 Filling ������������������������������������������� 42 Operation ������������������������������������� 46 Flushing cycle ������������������������������� 41 Functional description Control ��������������������������������������� 20 Functional test ������������������������������ 44 Bosch Rexroth AG, RE 92512-01-B/2023-03-27...
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Signal word ���������������������������������� 6 Scope of delivery �������������������������� 18 Slipper pad ����������������������������������� 19 Solenoid position Changing ������������������������������������ 41 Spare parts ����������������������������������� 49 Storage ����������������������������������� 22, 24 Storage time ��������������������������������� 24 Suction side ��������������������������������� 19 Symbols ����������������������������������������� 6 RE 92512-01-B/2023-03-27, Bosch Rexroth AG...
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Bosch Rexroth AG An den Kelterwiesen 14 72160 Horb a.N. Germany Phone +49 7451 92-0 sales.mobile.horb@boschrexroth.de www.boschrexroth.com Your local contact person can be found at: https://addresses.boschrexroth.com Subject to change RE 92512-01-B/2023-03-27...