1. Manuals
  2. Brands
  3. Bosch Manuals
  4. Water Pump
  5. rexroth A4VSH Series
  6. Instruction manual

Bosch rexroth A4VSH Series Instruction Manual

Axial piston variable pump
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Instruction manual
Axial piston
variable pump
A4VSH series 1x and 30
RE 92110-01-B/2022-03-22, EN

Advertisement

Table of Contents
loading

Related Manuals for Bosch rexroth A4VSH Series

Summary of Contents for Bosch rexroth A4VSH Series

  • Page 1 Instruction manual Axial piston variable pump A4VSH series 1x and 30 RE 92110-01-B/2022-03-22, EN...
  • Page 2 © Bosch Rexroth AG 1989. 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...

  • Page 3: Table Of Contents

    7.4.6 Installation with cardan shaft ..............36 7.4.7 Completion of assembly ................36 7.4.8 Hydraulically connecting the axial piston unit ..........38 7.4.9 Electrically connecting the axial piston unit ..........43 Performing flushing cycle ................44 Commissioning ��������������������������������������������������������������������������������������� 45 Initial commissioning ................. 45 RE 92110-01-B/2022-03-22, Bosch Rexroth AG...
  • Page 4 Preparing the components for storage or further use ......... 53 Disposal ������������������������������������������������������������������������������������������������� 54 Extension and conversion ����������������������������������������������������������������������� 55 Troubleshooting ������������������������������������������������������������������������������������� 56 14.1 How to proceed for troubleshooting ............56 14.2 Malfunction table ..................57 Technical data ���������������������������������������������������������������������������������������� 61 Alphabetical index ��������������������������������������������������������������������������������� 62 Bosch Rexroth AG, RE 92110-01-B/2022-03-22...

  • Page 5: About This Documentation

    90221 Data sheet Describes the requirements for environmentally acceptable hydraulic fluids on mineral oil basis and related hydrocarbons for operation with Rexroth hydraulic components, and provides support for selection of suitable hydraulic fluids for the hydraulic system. RE 92110-01-B/2022-03-22, Bosch Rexroth AG...

  • Page 6: Representation Of Information

    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 7: Symbols

    Axial piston variable pump in its standard version, semi-closed circuit Threaded plug Metal screw, pressure-resistant Protective plug Made out of plastic, not pressure-resistant, only for transportation As a generic term for the "axial piston variable motor A4VSH", the designation "axial piston unit" is used in the following. RE 92110-01-B/2022-03-22, Bosch Rexroth AG...

  • Page 8: Abbreviations

    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) Bosch Rexroth AG, RE 92110-01-B/2022-03-22...

  • Page 9: 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 10: 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 11 Potential electromagnetic interference (EMI) exists if the solenoid is energized with a modulated direct current (e.g. PWM signal). The machine manufacturer should conduct appropriate tests and take appropriate measures to ensure that other components or operators (e.g. with a pacemaker) are not affected by this potentiality. RE 92110-01-B/2022-03-22, Bosch Rexroth AG...

  • Page 12: 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 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 properly implemented. RE 92110-01-B/2022-03-22, Bosch Rexroth AG...
  • Page 14 Danger from improper handling! Slip hazard! Risk of slipping on wet surfaces when climbing on the axial piston unit. ▶ Never grab or climb onto the axial piston unit. ▶ Check how to safely get on top of the machine/system. Bosch Rexroth AG, RE 92110-01-B/2022-03-22...

  • Page 15: Personal Protective Equipment

    Safety instructions | A4VSH series 1x and 30 15/64 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. RE 92110-01-B/2022-03-22, Bosch Rexroth AG...

  • Page 16: 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 period, suitable measures have to be taken to prevent draining of the suction lines. Bosch Rexroth AG, RE 92110-01-B/2022-03-22...
  • Page 17 ▶ 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. RE 92110-01-B/2022-03-22, Bosch Rexroth AG...
  • Page 18 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 92110-01-B/2022-03-22...

  • Page 19: Scope Of Delivery

    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) • Protective cover for through drive (3) RE 92110-01-B/2022-03-22, Bosch Rexroth AG...

  • Page 20: About This Product

    5 Pressure side B with 8 Cylinder 2 Retaining plate anti-cavitation valve 9 Piston 3 Stroking piston 6 Pressure side A with 10 Slipper pad 4 Control plate anti-cavitation valve 11 Swashplate (Distributor plate) 7 Port plate (Cradle) Bosch Rexroth AG, RE 92110-01-B/2022-03-22...

  • Page 21: Functional Description

    Various control devices are available depending on requirements. For information, see data sheet 92110 as well as the data sheets of the respective controls, see Table 1 "Required and supplementary documentation" on page 5. RE 92110-01-B/2022-03-22, Bosch Rexroth AG...

  • Page 22: Product Identification

    4 Direction of rotation 11 Serial number (viewed on drive shaft) – 12 Material number of the here: clockwise axial piston unit 5 Bar code 13 Type code 6 Power setting 14 Customer material number 7 Rotational speed Bosch Rexroth AG, RE 92110-01-B/2022-03-22...

  • Page 23: 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. RE 92110-01-B/2022-03-22, Bosch Rexroth AG...

  • Page 24: 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). Bosch Rexroth AG, RE 92110-01-B/2022-03-22...

  • Page 25: Storing The Axial Piston Unit

    Table 7: 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. RE 92110-01-B/2022-03-22, Bosch Rexroth AG...
  • Page 26 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" on page 52.

  • Page 27: Assembly

    • 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 28 "Cleaning and care" on page 50 and Table 13 "Inspection schedule" on page 50. ▶ 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. Bosch Rexroth AG, RE 92110-01-B/2022-03-22...

  • Page 29: Installation Position

    U must be turned in to the end stop. To achieve an optimum control function, the stroking chambers must be bled via the highest air bleed port R to R depending on the installation position for HM, HS5, HS5E and EO. RE 92110-01-B/2022-03-22, Bosch Rexroth AG...

  • Page 30: Below-Reservoir Installation (Standard)

    2 (drive shaft horizontal) T (F) T (F) 3 (drive shaft horizontal) 4 (drive shaft horizontal) 5 (drive shaft vertically down) 6 (drive shaft vertically up) T, (F) T, (F) Bearing flushing at port U required. (see data sheet 92110) Bosch Rexroth AG, RE 92110-01-B/2022-03-22...

  • Page 31: Inside-Reservoir Installation

    The housing of the axial piston unit must be filled before fitting the piping and filling the reservoir with hydraulic fluid. To prevent draining of the housing, the reservoir has to be filled with hydraulic fluid as soon as possible. RE 92110-01-B/2022-03-22, Bosch Rexroth AG...

  • Page 32: Above-Reservoir Installation

    For installation position (drive shaft upward): A check valve in the drain line should be avoided and is only permissible on a case-by-case basis upon request. Please consult your proper contact person at Bosch Rexroth. Bosch Rexroth AG, RE 92110-01-B/2022-03-22...

  • Page 33: Installing The Axial Piston Unit

    7�4 Installing the axial piston unit 7�4�1 Preparation 1� Check the specifications on the name plate to see you have the correct axial piston unit. 2� Compare the material number and designation (type code) with the parameters in the order confirmation. RE 92110-01-B/2022-03-22, Bosch Rexroth AG...

  • Page 34: Dimensions

    At risk are diesel drives with a small number of cylinders and low flywheel mass and toothed belt or V-belt drives. Belts can lose much of their pre-charge pressure after just a short operating time. Bosch Rexroth AG, RE 92110-01-B/2022-03-22...

  • Page 35: Installation With A Coupling

    5� Install the coupling on the output shaft of the drive motor in accordance with the specifications provided by the coupling manufacturer. Do not fasten down the axial piston unit until the coupling has been correctly installed. RE 92110-01-B/2022-03-22, Bosch Rexroth AG...

  • Page 36: 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 37 3� For versions with through drive, install the auxiliary pump according to the pump manufacturer's manual. The protective cover (3) is not pressure-resistant and should not be used during operation. O-ring and mounting bolts are included in the scope of delivery. RE 92110-01-B/2022-03-22, Bosch Rexroth AG...

  • Page 38: Hydraulically Connecting The Axial Piston Unit

    – The hose must be pressure-resistant, also to external air pressure. • Pressure/boost line – For the pressure/boost line lines, use only pipes, hoses and connecting elements rated for the working pressure range specified in data sheet 92110 (see Table 11). Bosch Rexroth AG, RE 92110-01-B/2022-03-22...
  • Page 39 ▶ 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 92110-01-B/2022-03-22, Bosch Rexroth AG...
  • Page 40 Measuring port working pressure B Measuring port suction pressure A Flushing port Drain port R(L) Drain port Flushing port Pilot pressure M, M Control pressure measuring Control pressure Control fluid return flow Control pressure accumulator bis R Stroking chamber air bleeding Bosch Rexroth AG, RE 92110-01-B/2022-03-22...
  • Page 41 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 92110-01-B/2022-03-22, Bosch Rexroth AG...
  • Page 42 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. Bosch Rexroth AG, RE 92110-01-B/2022-03-22...

  • Page 43: Electrically Connecting The Axial Piston Unit

    Table 1 "Required and supplementary documentation" on page 5: • Permissible voltage range • Permissible current • Correct pin assignment • Recommended electrical control units RE 92110-01-B/2022-03-22, Bosch Rexroth AG...

  • Page 44: Performing Flushing Cycle

    Fig� 14: 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 45: 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 46 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)".

  • Page 47: Testing The Hydraulic Fluid Supply

    ▶ After starting the drive motor, check in particular the specified pressures, e.g. working pressure, boost pressure and case pressure. ▶ Perform a leak test without and with load prior to normal operation. ▶ If necessary, remove the pressure gauge and plug the ports with the specified threaded plugs. RE 92110-01-B/2022-03-22, Bosch Rexroth AG...

  • Page 48: 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 49: 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 92110-01-B/2022-03-22, Bosch Rexroth AG...

  • Page 50: 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 51: 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 52: Spare Parts

    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.

  • Page 53: 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 25. RE 92110-01-B/2022-03-22, Bosch Rexroth AG...

  • Page 54: Disposal

    Also observe the applicable safety data sheet for the hydraulic fluid. 4� Disassemble the axial piston unit into its constituent parts for proper recycling. 5� For example, separate the parts into: – Castings – Steel – Aluminum – Non-ferrous metal – Electronic waste – Plastic – Seals Bosch Rexroth AG, RE 92110-01-B/2022-03-22...

  • Page 55: Extension And Conversion

    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 configuration as delivered. Any modification, extension or software customization voids the warranty. Setting screws are protected against unauthorized adjustment by tamper-proof caps.

  • Page 56: 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. Bosch Rexroth AG, RE 92110-01-B/2022-03-22...

  • Page 57: Malfunction Table

    Optimize the setting of the pressure limitation and pressure control valve Mechanical damage to the axial piston unit Replace axial piston unit (e.g. bearing damage) Contact Bosch Rexroth Service Anti-cavitation valves are not properly opening Contact Bosch Rexroth Service or closing Increased, unusual vibration Bearings worn Contact Bosch Rexroth Service RE 92110-01-B/2022-03-22, Bosch Rexroth AG...
  • Page 58 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 axial Replace axial piston unit piston unit Contact Bosch Rexroth Service...
  • Page 59 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 axial Replace axial piston unit piston unit Contact Bosch Rexroth Service...
  • Page 60 Contact Bosch Rexroth Service Contact machine/system manufacturer Flushing flow of the flushing valve too low Contact Bosch Rexroth Service Axial piston unit worn Replace axial piston unit; contact Bosch Rexroth Service Bosch Rexroth AG, RE 92110-01-B/2022-03-22...

  • Page 61: Technical Data

    Technical data | A4VSH series 1x and 30 61/64 15 Technical data The data sheet can be found in the online product catalog at www.boschrexroth.com/p-A4VSH Order-related technical data for your axial piston unit can be found in the order confirmation. RE 92110-01-B/2022-03-22, Bosch Rexroth AG...

  • Page 62: Alphabetical Index

    Pressure side ........ 20 Eye bolt ........24 Product description ...... 20 Property damage ......16 Filling ........... 45 Flushing cycle ....... 44 Qualification ......... 10 Functional description Control ........21 Motor function ......21 Functional test ......47 Bosch Rexroth AG, RE 92110-01-B/2022-03-22...
  • Page 63 Transport ........23 By hand ........23 with eye bolt ......24 with lifting strap ......24 Transporting ......... 23 Transport protection ..... 37 Troubleshooting ......56 Unpacking ........27 Warranty ......... 18, 55 Weight .......... 23 RE 92110-01-B/2022-03-22, Bosch Rexroth AG...
  • Page 64 Bosch Rexroth AG An den Kelterwiesen 14 72160 Horb a.N. Germany Tel. +49 (0) 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 92110-01-B/2022-03-22...

Table of Contents