Bosch rexroth A4VSO 10 Series Instruction Manual
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Bosch rexroth A4VSO 10 Series Instruction Manual

Axial piston variable pump
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Axial piston variable pump
A4VSO Series 10, 11 and 30
for explosive areas
II 2G Ex h IIC T4-T1 Gb X and
II 3G Ex h IIC T4-T1 Gc X
Instruction manual according to
ATEX directive 2014/34/EU
RE 92050-01-X-B0/2019.08.23
Mat. no.: R902569828
Replaces: 01.2017
English

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Summary of Contents for Bosch rexroth A4VSO 10 Series

  • Page 1 Axial piston variable pump A4VSO Series 10, 11 and 30 for explosive areas II 2G Ex h IIC T4-T1 Gb X and II 3G Ex h IIC T4-T1 Gc X Mat. no.: R902569828 Instruction manual according to Replaces: 01.2017 ATEX directive 2014/34/EU English RE 92050-01-X-B0/2019.08.23...
  • Page 2 DA: Dette produkt må først tages i brug, når du har modtaget og læst driftsvejledningen på et for dig forståeligt sprog og har forstået indholdet. Hvis det ikke er tilfældet, bedes du kontakte din kontaktperson hos Bosch Rexroth eller den ansvarlige kundeserviceafdeling. Den kan du finde på hjemmesiden www.boschrexroth.com.
  • Page 3 NL: U mag het product pas in bedrijf stellen, als deze bedieningshandleiding voor u beschikbaar is in een voor u begrijpelijke taal en als u de inhoud daarvan begrepen heeft. Is dit niet het geval, neem dan a.u.b. contact op met uw Bosch Rexroth contactpersoon of de servicepartner. Deze vindt u ook op www.boschrexroth.com.
  • Page 4 SV: Denna produkt får inte tas i drift förrän du har mottagit en bruksanvisning på ett språk som du förstår och sedan har läst och förstått innehållet i. Om detta inte är fallet ber vi dig kontakta din kontaktperson på Bosch Rexroth eller ansvarig kundservice. Dessa hittar du också på www.boschrexroth.com.
  • Page 5 Axial piston variable pump A4VSO Series 10, 11 and 30 for explosive areas ii 2G ex h iiC t4-t1 Gb X and ii 3G ex h iiC t4-t1 Gc X part i of instruction manual according to AteX directive 2014/34/eU product-specific Replaces: 01.2017 and general instructions English...
  • Page 6 © Bosch Rexroth AG 2019. 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 our information. The information given does not release the user from the obligation of own judgment and verification.

  • Page 7: Table Of Contents

    Transporting the axial piston unit 6.1.1 Transport by hand 6.1.2 Transport with lifting devices Storing the axial piston unit installation Unpacking Installation conditions Installation position 7.3.1 Below-reservoir installation (standard) 7.3.2 Inside-reservoir installation 7.3.3 Above-reservoir installation RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...
  • Page 8 11.1 Required tools 11.2 Preparing for removal 11.3 Performing the disassembly 11.4 Preparing the components for storage or further use Disposal extension and conversion troubleshooting 14.1 How to proceed for troubleshooting 14.2 Malfunction table technical data Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...

  • Page 9: About This Documentation

    90300-03-B Manual Contains additional information on the use of Rexroth axial piston units at low temperatures. Storage and preservation of axial piston units 90312 Data sheet Contains additional information on storage and preservation. RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...

  • Page 10: Representation Of Information

    Identifies a dangerous situation that may result in death WArninG or serious injury if it is not avoided. Identifies a dangerous situation that may result in minor CAUtion to moderate injury if it is not avoided. Property damage: The product or surrounding area may NOTICE be damaged. Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...

  • Page 11: Symbols

    Standardization Japan industrial Standard rexroth document in the english language VDI 2230 Directive for the systematic calculation of high duty screwed joints and cylindrical screw joints from the VDI (Verein Deutscher ingenieure - Association of German Engineers) RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...

  • Page 12: Safety Instructions

    (explosion group, temperature class) with lower requirements. It should be operated in accordance with the technical data and ambient conditions specified in this directive and in this instruction manual. Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...

  • Page 13: Improper Use

    • In particular, fully understanding the relationships with regard to safety devices • Comprising of knowledge regarding the function and layout 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: http://www.boschrexroth.de/didactic. RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...

  • Page 14: General Safety Instructions

    (functional safety). • Only commission the product if it has been determined that the end product (e.g. machinery/system) in which the Rexroth products are installed complies with the country-specific provisions, safety regulations and standards for the application. Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...

  • Page 15: Product-Specific Safety Instructions

    (Part II). ▶ Set the opening pressure of the high pressure relief valve to a value of at least 30 bar above the value set at the pressure controller. RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...
  • Page 16 A gradual increase in the case leakage temperature can, thus, indicate the start of bearing damage. If this occurs, check whether there is an increase in mechanical loading. Contact Bosch Rexroth Service for maintenance if you cannot trace the increase in temperature to an increase in the loading of the axial piston unit.
  • Page 17 Do not transport or store the axial piston unit in potentially explosive areas. ▶ Do not load the axial piston unit in potentially explosive areas. ▶ Do not unpack or pack the axial piston unit in potentially explosive areas. RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...
  • Page 18 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. ▶ If the axial piston unit is equipped with a pressure cut-off and/or pressure controller, this is not an adequate safeguard against pressure overload.
  • Page 19 Risk of injury from electric shock or risk of property damage! ▶ Always disconnect the voltage supply to the relevant machine/system part before installing the product and/or connecting or disconnecting the connector. Protect the machine/system against being re-energized. RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...

  • Page 20: Personal Protective Equipment

    Never attempt to block or seal the leak or hydraulic fluid jet with a cloth. 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, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...

  • Page 21: General Instructions On Property Damage And Product Damage

    (air enters via the shaft seal) or via the working line (gap leakage). This means the bearings are insufficiently lubricated when the system is turned on. ▶ Make sure the suction line is always filled with hydraulic fluid during commissioning and operation. RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...
  • Page 22 ▶ 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 of the hydraulic fluid. Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...

  • Page 23: Operator's Obligations

    The warranty will also be voided if the product is serviced by anyone other than Bosch Rexroth Service or is not serviced within the specified intervals. 3.1 operator's obligations The operator has the obligation to check in the order confirmation that the axial piston unit supplied corresponds to the category needed and the related zone.

  • Page 24: Scope Of Delivery

    The following parts come assembled on the unit: • Protective covers (1) • Protective plug/threaded plugs (2) • For version with through drive, metallic protective cover and mounting bolts (3) Flange cover on version with universal through drive plugged and pressure-proof. Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...

  • Page 25: About This Product

    2 Retaining plate 8 Suction port 13 Cradle 3 Stroking piston 9 Suction side 14 Cylinder roller bearing 4 Control valve DR 10 Cylinder 5 High-pressure side 11 Piston 6 Distributor plate RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...

  • Page 26: Functional Description

    As a result, the flow in the axial piston unit will no longer respond correctly to the operator's specifications. ▶ Check whether the application on your machine requires additional safety measures to bring the driven consumer to a safe position (immediate stop). If necessary, make sure these are appropriately implemented. Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...

  • Page 27: Product Identification

    13 Material number of the mechanical part according to axial piston unit DIN EN ISO 80079-36 and -37 14 Type code 4 CE mark 15 Customer material number 5 Sample category (optional) 6 Internal plant designation 7 Designated area for inspection stamp RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...

  • Page 28: Explosion Protection Mark

    IIC according to their ignition resistance, i.e., their ability to conduct or prevent an explosion groups explosion through a narrow gap. Ignition resistance is a measure of the risk of a gas exploding. Explosion Group IIA contains the less dangerous materials; Explosion Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...
  • Page 29 Fluid encapsulation – Ex ob, oc Oil encapsulation – Ex px, py, pz Pressurized enclosure Ex qb Sand encapsulation – Ex ma, mb, mc Encapsulation – Ex ia, ib, ic Intrinsic safety – RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...

  • Page 30: Transport And Storage

    10: Dimensions and weights Size Weight Width Dimensions vary by equipment. The values applicable for your axial piston unit can be found in the installation drawing (request if necessary). Height Depth Weight may vary by equipment. Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...

  • Page 31: Transport By Hand

    During transport with a lifting device, the axial piston unit can topple out of the lifting strap and cause injury. ▶ Use the widest possible lifting strap. ▶ Make sure that the axial piston unit is securely fixed with the lifting strap. RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...

  • Page 32: Storing The Axial Piston Unit

    (see Table 11). After the maximum storage time has elapsed, have the axial piston unit inspected by Bosch Rexroth Service; for the address, see chapter 10.5 "Repair" on page Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...
  • Page 33 Package the axial piston unit with desiccant in corrosion protection film so it is airproof. Store the axial piston unit in a non-explosive area and in such a manner that it is protected against shocks; see "Requirement" on page 28 in this chapter. RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...

  • Page 34: Installation

    ▶ Verify that the instruction manual is complete by cross-checking with the table of contents. Please contact us if the instruction manual is incomplete. ▶ Dispose of the packaging in accordance with the regulations in your country. Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...

  • Page 35: Installation Conditions

    Use a line size that matches the port. ▶ A check valve in the drain line is only permissible on a case-by-case basis upon request. Please consult your proper contact person at Bosch Rexroth. ▶ To keep noise values low, use elastic elements to isolate all connecting lines from all vibration-capable components (e.g.

  • Page 36: Installation Position

    Select the installation location outside of the range of influence of pulsating parts, e.g. cardan shaft. Port F is part of the external piping and must be provided on the customer side to make filling and air bleeding easier. Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...

  • Page 37: Below-Reservoir Installation (Standard)

    "r(L)" or "t". In this case, the other ports must be plugged, except the bearing flushing "U" for installation position "drive shaft up". The housing of the axial piston unit must be filled before fitting the piping and filling the reservoir with hydraulic fluid. RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...

  • Page 38: Above-Reservoir Installation

    Without piping: Automatically via all open ports, by position below hydraulic fluid level 7.3.3 Above-reservoir installation Above-reservoir installation means that the axial piston unit is installed above the minimum fluid level of the reservoir. Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...
  • Page 39 Install bearing flushing, please refer to data sheet (Part II) for minimum flushing flow r(L) Fluid filling and air bleeding Minimum required distance (drain port) to reservoir bottom (100 mm) Fluid drain Minimum required immersion depth t min (200 mm) Suction port Baffle (baffle plate) Flushing port RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...

  • Page 40: Installing The Axial Piston Unit

    ATEX category and related zone with the details in the order confirmation. If the material number for the axial piston unit does not match the one in the order confirmation, contact Bosch Rexroth Service for assistance; see chapter 10.5 "Repair" on page 61. Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...

  • Page 41: Dimensions

    7.4.2 Dimensions The installation drawing contains the dimensions for all connections and ports on the axial piston unit. Also observe the manuals provided by the manufacturers of the other hydraulic components when selecting the required tools. RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...

  • Page 42: General Instructions

    Product can be damaged! ▶ Do not install the coupling hub on the drive shaft of the axial piston unit by striking it. Install the specified coupling half on the drive shaft of the axial piston unit according to the instructions of the coupling manufacturer. Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...

  • Page 43: Installation On A Gearbox

    ▶ Maintain a sufficiently large air gap between the coupling and the case so no sparking or heat buildup can occur through material contact. ▶ Fasten the axial piston unit at the installation location. RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...

  • Page 44: Installation With Cardan Shaft

    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 factory that manufactured the axial piston unit. Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...

  • Page 45: Hydraulically Connecting The Axial Piston Unit

    The setting screws are protected against unintentional adjustment by caps. Adjusting the setting screws will render the warranty void. If you need to change settings, contact your Bosch Rexroth Service partner; see chapter 10.5 "Repair" on page 61 for an address. For versions with through drive, install the auxiliary pump according to the pump manufacturer's instructions.
  • Page 46 This can result in serious injury and property damage. Hydraulic fluid can escape from this leakage point. Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...
  • Page 47 External control fluid return (NG40 to 250) Pilot pressure remote adjustment for power controller Pilot pressure Control pressure The measuring system and thread size can be found in the installation drawing. Sizes may vary. Only for series 30 RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...
  • Page 48 If using an external bearing flushing, screw the throttle screw in port "U" in to the stop. Connect the lines in accordance with the installation drawing and the machine or system circuit diagram. Check that all ports are connected or plugged with threaded plugs. Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...

  • Page 49: Electrically Connecting The Axial Piston Unit

    5 seconds after the monitoring function responds. • The control units should include a monitoring circuit for sensor faults and cable breaks, and a self-monitoring circuit for faults in the control unit. Such faults RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...

  • Page 50: Connecting To The Potential Equalization

    The ground terminals are designed for a maximum of two ground wires, each with a cross section of 4 mm . The minimum wire cross-section should be 2.5 mm Tightening torque of the pump housing ground terminal: 2 to 4 Nm Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...

  • Page 51: Commissioning

    ▶ During commissioning, monitor the temperature of the hydraulic fluid in the reservoir to make sure it remains within the permissible temperature and viscosity limits. RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...

  • Page 52: Comply With The Limits For Supply/Leakage Temperature

    Also take care to remove dust in a timely manner in order to reduce the risk of ignition. Professional filling and air bleeding is necessary to prevent damage to the axial piston unit and to maintain proper function. Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...

  • Page 53: Testing The Hydraulic Fluid Supply

    8.1.4 testing the hydraulic fluid supply The axial piston unit should always have a sufficient supply of hydraulic fluid. For this reason, the supply of hydraulic fluid must be ensured at the start of the commissioning process. RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...

  • Page 54: Performing A Functional Test

    Prior to normal operation, perform a leak test and heat development test without and with load in a non-explosive atmosphere. ▶ If necessary, disconnect the pressure gauge and plug the ports with threaded plugs. Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...

  • Page 55: Performing Flushing Cycle

    Commissioning 51/72 8.1.6 performing flushing cycle In order to remove foreign particles from the system, Bosch Rexroth recommends a flushing cycle for the entire system prior to initial commissioning. To avoid internal contamination, do not include the axial piston unit in the flushing cycle. Use an additional flushing unit to perform the flushing cycle. Follow the instructions of the flushing unit's manufacturer for the exact procedure during...

  • Page 56: Recommissioning After Standstill

    • After a period of standstill longer than 1 hour (to ensure fluid immersion especially with above-reservoir installation) • Air and/or water in the hydraulic system • Old hydraulic fluid • Other contamination ▶ Before recommissioning, proceed as described in chapter 8.1 "Initial commissioning" on page 47. Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...

  • Page 57: Operation

    Do not alter the settings on the axial piston unit. ▶ If the axial piston unit can no longer achieve the specified torque (pressure), shut the system down. RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...

  • Page 58: Operating The Optional Auxiliary Actuation Device

    Property damage! ▶ Carry out the specified inspections at the intervals described in this manual. ▶ Carry out the specified maintenance work at the intervals described in this manual. Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...

  • Page 59: Cleaning And Care

    Only clean the axial piston unit with a damp cloth; cleaning with a dry cloth could cause static electricity to build. ▶ Remove major external contamination and keep clean sensitive and important components, such as solenoids, valves, indicators and sensors. RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...

  • Page 60: Inspection

    Maintenance and repair 10.2 inspection In order to keep the axial piston unit running reliably for a long time, Bosch Rexroth recommends testing the hydraulic system and axial piston unit on a regular basis, and documenting and archiving the following operating conditions: table 17: inspection schedule tasks to be performed...

  • Page 61: Maintenance

    Maintenance work on the axial piston unit should only be performed by Bosch Rexroth Service; for the address, see chapter 10.5 "Repair" on page 61. 10.4 Service life characteristics of nG 40 to 500 The following diagrams are suitable as an orientation for the service life:...
  • Page 62 Fig. 15: Service life characteristic of size 71 at 1800 rpm Size 125 30000 h 20000 h 40000 h 10000 h 60000 h 100000 h Working pressure P [bar] Fig. 16: Service life characteristic of size 125 at 1800 rpm Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...
  • Page 63 Fig. 17: Service life characteristic of size 180 at 1800 rpm Size 250 30000 h 20000 h 40000 h 10000 h 6000 h 60000 h 4000 h 100000 h Working pressure P [bar] Fig. 18: Service life characteristic of size 250 at 1800 rpm RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...
  • Page 64 The h value stated in the diagrams is not the guaranteed service life, but rather a time at which there is a 10% probability of failure at the assumed load. At higher viscosity, a higher bearing service life is required. Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...

  • Page 65: Repair

    Maintenance and repair 61/72 10.5 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 Bosch Rexroth Service. Bosch Rexroth AG An den Kelterwiesen 14 72160 Horb a.N., Germany Hotline +49 9352 405060 spares.horb@boschrexroth.de...

  • Page 66: Removal And Replacement

    Place a drip tray under the axial piston unit to collect any hydraulic fluid that may leak. Disconnect the lines and collect the escaping hydraulic fluid in the drip tray. Remove the axial piston unit. Use a suitable lifting device. Completely drain the axial piston unit. Plug all openings. Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...

  • Page 67: Preparing The Components For Storage Or Further Use

    ▶ Make sure used units are not reused in an ATEX environment. ▶ Make sure used units are inspected by Bosch Rexroth Service before reusing them in an ATEX environment; for the address, see chapter 10.5 "Repair" on page 61. ▶...

  • Page 68: Disposal

    Disassemble the axial piston unit into its constituent parts for proper recycling. For example, separate the parts into: – Castings – Steel – Aluminum – Non-ferrous metal – Electronic waste – Plastic – Seals Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...

  • Page 69: Extension And Conversion

    (a special ATEX through drive is required here). The warranty from Bosch Rexroth only applies to the product as delivered. The warranty will be voided if the unit is modified or extended. The setting screws are protected against unintentional adjustment by caps.

  • Page 70: Troubleshooting

    Try to get a clear idea of the cause of the fault. Directly ask the (machine) operator. ▶ Document the work carried out. ▶ If faults cannot be rectified, contact Bosch Rexroth Service; for the address, see chapter 10.5 "Repair" on page 61. Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...

  • Page 71: Malfunction Table

    (boost-pressure relief valve, high-pressure relief Contact Bosch Rexroth service: valve, pressure cut-off) Optimize the settings of the pressure relief and pressure control valves Mechanical damage to the axial piston unit Replace axial piston unit (e.g. bearing damage) Contact Bosch Rexroth service RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...
  • Page 72 Contact Bosch Rexroth service 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 Bosch Rexroth AG, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...
  • Page 73 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 Contact machine/system manufacturer or cylinder) RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...
  • Page 74 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, axial piston variable pump A4VSO, RE 92050-01-X-B1/2019.08.23...

  • Page 75: Technical Data

    92060, 92064, 92072 or 92080. The data sheets of control units can be found online under www.boschrexroth.com/mediadirectory www.boschrexroth.com/ics Order-related technical data for your axial piston unit can be found in the order confirmation. RE 92050-01-X-B1/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...
  • Page 76 Bosch Rexroth AG An den Kelterwiesen 14 72160 Horb a.N. Germany Tel. +49 7451 92-0 info.ma@boschrexroth.de www.boschrexroth.com Your local contact person can be found at: www.boschrexroth.com/addresses Subject to change Printed in Germany RE 92050-01-X-B1/2019.08.23...
  • Page 77 Installation instructions swashplate angle. Project planning notes ▶ Excellent suction characteristics Safety instructions ▶ Low noise level ▶ Long service life ▶ Modular design ▶ Short control response times ▶ Variable through drive options ▶ Optical swivel angle indicator RE 92050-01-X-B2/2019-08-23, Bosch Rexroth AG...

  • Page 78: Ex H Iic T4-T1 Gc

    SAE flange ports, B and S offset 90° to the side 2. Pressure port B1 opposite B, ● Fastening thread plugged with flange plate on metric delivery = Available = On request – = Not available ● ○ Bosch Rexroth AG, RE 92050-01-X-B2/2019-08-23...
  • Page 79 Hub for splined shaft according to ANSI B92.1a, 30° pressure angle, application in question. flat root, side fit, tolerance class 5 With through-drive shaft, without hub, without intermediate flange, See DIN EN ISO 80079-36, 6.4.2.1 closed on a functionally reliable basis with cover. Splined hub according to DIN 5480 RE 92050-01-X-B2/2019-08-23, Bosch Rexroth AG...

  • Page 80: Hydraulic Fluids

     ≤ 16 to 10 mm θ = +90 °C t < 3 min, p < 0.3 × p ▼ Selection diagram Maximum permissible viscosity on cold start 1000 Optimum operating viscosity range v Optimum efficiency Minimum permissible viscosity for short-term operation Minimum permissible temperature on cold start Temperature θ [°C] Bosch Rexroth AG, RE 92050-01-X-B2/2019-08-23...

  • Page 81: Operating Data Monitoring - X Parameters

    ▶ This shut-off function should be tested during ▶ This shut-off function should be tested during commissioning; see Chapter 8.1.1 of the instruction commissioning; see Chapter 8.1.1 of the instruction manual. manual. ▶ Reservoir level monitoring is also required. ▶ Reservoir level monitoring is also required. RE 92050-01-X-B2/2019-08-23, Bosch Rexroth AG...
  • Page 82 2 bar (Series 10 and 11) or 3 bar (Series 30) between port U (including fitting) and the housing area. Notice regarding series 3x When using external bearing flushing, the throttle screw in port U must be turned in to the end stop. Throttle screw Bosch Rexroth AG, RE 92050-01-X-B2/2019-08-23...

  • Page 83: Working Pressure Range

    Please contact us for values for other hydraulic fluids. Displacement g max The inlet pressure is the static supply pressure and the minimum dynamic value, respectively, e.g. in case of pre-charge pressure. Maximum permissible rotational speed n , see page 8. RE 92050-01-X-B2/2019-08-23, Bosch Rexroth AG...
  • Page 84 ‒ for the optimum viscosity range from ν = 36 to 16 mm shaft twice the rotary frequency). The limit value is only valid for ‒ with hydraulic fluid on the basis of mineral oils a single pump. The load capacity of the connection parts must be considered. Bosch Rexroth AG, RE 92050-01-X-B2/2019-08-23...
  • Page 85 If no further pumps are to be mounted at the factory, then the simple type designation is sufficient. The scope of delivery includes: ▶ For all through drives: coupling, fixing screw, seal and if applicable an intermediate flange RE 92050-01-X-B2/2019-08-23, Bosch Rexroth AG...

  • Page 86: Overview Of Control Units

    This maximum pressure level can be steplessly set at the control valve. ▶ Setting range 20...350 bar Optional: Remotely controllable (DRG) ▼ Characteristic curve R(L) v min v max Bosch Rexroth AG, RE 92050-01-X-B2/2019-08-23...
  • Page 87 Remotely controllable pressure control (FRG) Connection from X to tank plugged (FR1, FRG1) ▼ Characteristic curve v min v max R(L) Notice ▶ All additional components from 92060 and 92064 must correspond to the ATEX classification for the application concerned. RE 92050-01-X-B2/2019-08-23, Bosch Rexroth AG...
  • Page 88 Not available from RE 92064: LR2.Y (electric relief valve) ▼ Characteristic curve U S M R(L) g min g max Notice ▶ All additional components from 92060 and 92064 must correspond to the ATEX classification for the application concerned. Bosch Rexroth AG, RE 92050-01-X-B2/2019-08-23...
  • Page 89 (HD1P) Not available from RE92080: HD..T and HD..U (DBEP6 mounted) ▼ Characteristic curve R(L) g max Notice ▶ All additional components from 92060 and 92064 must correspond to the ATEX classification for the application concerned. RE 92050-01-X-B2/2019-08-23, Bosch Rexroth AG...
  • Page 90 Maximum control force NG 71: 6000 N Maximum control force NG 125, 180: 9000 N U S MS R(L) Maximum permissible working pressure: 150 bar Flow direction Components Axial Piston variable Pump A4VSO Drive direction viewed Swivel direction Flow on drive shaft clockwise counter-clockwise B, B Bosch Rexroth AG, RE 92050-01-X-B2/2019-08-23...

  • Page 91: Dimensions, Size 40 To

    ISO 3019-2 2. High-pressure port R(L) Control valve mounting for counter-clockwise rotation ▼ View Y ▼ View X B1, illustrated without flange plate 23.8 35.7 Ground terminal configured for up to 2×4 mm . Minimum cross section for ground wire 2.5 mm RE 92050-01-X-B2/2019-08-23, Bosch Rexroth AG...
  • Page 92 Keep this in mind when selecting measuring devices and fittings. O = Must be connected (comes plugged) The countersink may be deeper than specified in the standard. X = Plugged (in normal operation) Metric fastening thread is a deviation from standard. Bosch Rexroth AG, RE 92050-01-X-B2/2019-08-23...
  • Page 93 2. High-pressure port according to ISO 3019-2 R(L) Control valve mounting for counter-clockwise rotation ▼ View Y ▼ View X B1, illustrated without flange plate 27.8 42.9 Ground terminal configured for up to 2×4 mm . Minimum cross section for ground wire 2.5 mm RE 92050-01-X-B2/2019-08-23, Bosch Rexroth AG...
  • Page 94 Keep this in mind when selecting measuring devices and fittings. O = Must be connected (comes plugged) The countersink may be deeper than specified in the standard. X = Plugged (in normal operation) Metric fastening thread is a deviation from standard. Bosch Rexroth AG, RE 92050-01-X-B2/2019-08-23...
  • Page 95 Control valve mounting for counter-clockwise rotation Location R(L) for HD control ▼ View X ▼ View Y B1, illustrated without flange plate 31.8 50.8 Ground terminal configured for up to 2×4 mm . Minimum cross section for ground wire 2.5 mm RE 92050-01-X-B2/2019-08-23, Bosch Rexroth AG...
  • Page 96 Keep this in mind when selecting measuring devices and fittings. O = Must be connected (comes plugged) The countersink may be deeper than specified in the standard. X = Plugged (in normal operation) Metric fastening thread is a deviation from standard. Bosch Rexroth AG, RE 92050-01-X-B2/2019-08-23...
  • Page 97 Control valve mounting for counter-clockwise rotation Location R(L) for HD control ▼ View X ▼ View Y B1, illustrated without flange plate 31.8 61.9 Ground terminal configured for up to 2×4 mm . Minimum cross section for ground wire 2.5 mm RE 92050-01-X-B2/2019-08-23, Bosch Rexroth AG...
  • Page 98 Keep this in mind when selecting measuring devices and fittings. O = Must be connected (comes plugged) The countersink may be deeper than specified in the standard. X = Plugged (in normal operation) Metric fastening thread is a deviation from standard. Bosch Rexroth AG, RE 92050-01-X-B2/2019-08-23...
  • Page 99 Control valve mounting for counter-clockwise rotation Location R(L) for HD control ▼ View X ▼ View Y B1, illustrated without flange plate 36.5 61.9 Ground terminal configured for up to 2×4 mm . Minimum cross section for ground wire 2.5 mm RE 92050-01-X-B2/2019-08-23, Bosch Rexroth AG...
  • Page 100 Keep this in mind when selecting measuring devices and fittings. O = Must be connected (comes plugged) The countersink may be deeper than specified in the standard. X = Plugged (in normal operation) Metric fastening thread is a deviation from standard. Bosch Rexroth AG, RE 92050-01-X-B2/2019-08-23...
  • Page 101 Control valve mounting for counter-clockwise rotation Location R(L) for HD control ▼ View X ▼ View Y B1, illustrated without flange plate B (B 36.5 77.8 Ground terminal configured for up to 2×4 mm . Minimum cross section for ground wire 2.5 mm RE 92050-01-X-B2/2019-08-23, Bosch Rexroth AG...
  • Page 102 Keep this in mind when selecting measuring devices and fittings. O = Must be connected (comes plugged) The countersink may be deeper than specified in the standard. X = Plugged (in normal operation) Metric fastening thread is a deviation from standard. Bosch Rexroth AG, RE 92050-01-X-B2/2019-08-23...
  • Page 103 Control valve mounting for according to ISO 3019-2 counter-clockwise rotation ▼ View X ▼ View Y B (B B1, illustrated without flange plate 44.5 92.1 Ground terminal configured for up to 2×4 mm . Minimum cross section for ground wire 2.5 mm RE 92050-01-X-B2/2019-08-23, Bosch Rexroth AG...
  • Page 104 Keep this in mind when selecting measuring devices and fittings. O = Must be connected (comes plugged) The countersink may be deeper than specified in the standard. X = Plugged (in normal operation) Metric fastening thread is a deviation from standard. Bosch Rexroth AG, RE 92050-01-X-B2/2019-08-23...

  • Page 105: Dimensions, Ge Control, Ng 71, 125 And 180

    R(L) Further dimensions and ports in respective sizes can be found in this manual. Size Ports M and M State 17.1 – – 20.7 M14 × 1.5 plugged 20.7 M14 × 1.5 plugged RE 92050-01-X-B2/2019-08-23, Bosch Rexroth AG...

  • Page 106: Dimensions, Through Drive

    All attachment pumps must match the ATEX classification for the application in question. Mounting bolts and O-ring seal are included in the scope of delivery Splined hub according to DIN 5480 Thread according to DIN 13, see Part I for maximum tightening torques. Bosch Rexroth AG, RE 92050-01-X-B2/2019-08-23...
  • Page 107 All attachment pumps must match the ATEX classification for the application in question. Mounting bolts and O-ring seal are included in the scope of delivery Splined hub according to DIN 5480 Thread according to DIN 13, see Part I for maximum tightening torques. RE 92050-01-X-B2/2019-08-23, Bosch Rexroth AG...
  • Page 108 All attachment pumps must match the ATEX classification for the application in question. Mounting bolts and O-ring seal are included in the scope of delivery Splined hub according to DIN 5480 Thread according to DIN 13, see Part I for maximum tightening torques. Bosch Rexroth AG, RE 92050-01-X-B2/2019-08-23...
  • Page 109 All attachment pumps must match the ATEX classification for the application in question. Mounting bolts and O-ring seal are included in the scope of delivery Splined hub according to DIN 5480 Thread according to DIN 13, see Part I for maximum tightening torques. RE 92050-01-X-B2/2019-08-23, Bosch Rexroth AG...
  • Page 110 All attachment pumps must match the ATEX classification for the application in question. Mounting bolts and O-ring seal are included in the scope of delivery Splined hub according to DIN 5480 Thread according to DIN 13, see Part I for maximum tightening torques. Bosch Rexroth AG, RE 92050-01-X-B2/2019-08-23...
  • Page 111 All attachment pumps must match the ATEX classification for the application in question. Mounting bolts and O-ring seal are included in the scope of delivery Splined hub according to DIN 5480 Thread according to DIN 13, see Part I for maximum tightening torques. RE 92050-01-X-B2/2019-08-23, Bosch Rexroth AG...
  • Page 112 Mounting bolts and O-ring seal are included in the scope of delivery Involute spline according to ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5 Thread according to DIN 13, see Part I for maximum tightening torques. Bosch Rexroth AG, RE 92050-01-X-B2/2019-08-23...
  • Page 113 Mounting bolts and O-ring seal are included in the scope of delivery Involute spline according to ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5 Thread according to DIN 13, see Part I for maximum tightening torques. RE 92050-01-X-B2/2019-08-23, Bosch Rexroth AG...
  • Page 114 Mounting bolts and O-ring seal are included in the scope of delivery Involute spline according to ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5 Thread according to DIN 13, see Part I for maximum tightening torques. Bosch Rexroth AG, RE 92050-01-X-B2/2019-08-23...
  • Page 115 Mounting bolts and O-ring seal are included in the scope of delivery Involute spline according to ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5 Thread according to DIN 13, see Part I for maximum tightening torques. RE 92050-01-X-B2/2019-08-23, Bosch Rexroth AG...
  • Page 116 Mounting bolts and O-ring seal are included in the scope of delivery Involute spline according to ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5 Thread according to DIN 13, see Part I for maximum tightening torques. Bosch Rexroth AG, RE 92050-01-X-B2/2019-08-23...

  • Page 117: Overview Of Mounting Options

    10 g (98.1 m/s 1560 Weight Distance from center of gravity Permissible mass moment of inertia A10VSO static 1370 2160 3000 dynamic at 10 g (98.1 m/s Weight with through-drive plate Weight without through-drive plate Distance from center of gravity RE 92050-01-X-B2/2019-08-23, Bosch Rexroth AG...
  • Page 118 – 1005 1110 Total length "A" with attachment pump A10VSO Pump 1 sizes Pump 2 sizes – – – 1st pump 2nd pump Notice All attachment pumps must match the ATEX classification for the application in question. Bosch Rexroth AG, RE 92050-01-X-B2/2019-08-23...

  • Page 119: Installation Instructions

    R(L) Notice In certain installation positions, an influence For key, see page 44. on the adjustment or control can be expected. Gravity, dead weight and case pressure can cause minor characteristic shifts and changes in actuating time. RE 92050-01-X-B2/2019-08-23, Bosch Rexroth AG...
  • Page 120 Flushing port easier. Baffle (baffle plate) Minimum required immersion depth (200 mm) t min Minimum required distance to reservoir bottom (100 mm) Maximum permissible suction height (800 mm) S max For the high-speed version, P must be filled. Bosch Rexroth AG, RE 92050-01-X-B2/2019-08-23...

  • Page 121: Project Planning Notes

    (working pressure, fluid temperature), the characteristic curve may shift. ▶ Not all versions of the product are approved for use in a safety function according to ISO 13849. Please consult the proper contact at Bosch Rexroth if you require reliability parameters (e.g. MTTF ) for functional safety. ▶ Working ports: –...

  • Page 122: Safety Instructions

    The machine/system manufacturer must test whether remedial measures are needed on the machine for the application concerned in order to bring the driven consumer into a safe position (e.g. safe stop) and ensure any measures are appropriately implemented. Bosch Rexroth AG, RE 92050-01-X-B2/2019-08-23...
  • Page 123 Axial piston variable pump | A4VSO Series 10, 11 and 30 RE 92050-01-X-B2/2019-08-23, Bosch Rexroth AG...
  • Page 124 A4VSO Series 10, 11 and 30 | Axial piston variable pump Bosch Rexroth AG © Bosch Rexroth AG 2019. All rights reserved, also regarding any disposal, An den Kelterwiesen 14 exploitation, reproduction, editing, distribution, as well as in the event 72160 Horb a.N. of applications for industrial property rights. The data specified within only Germany serves to describe the product.
  • Page 125 RE 92050-01-X-B0/2019.08.23, Axial piston variable pump A4VSO, Bosch Rexroth AG...
  • Page 126 Bosch Rexroth AG An den Kelterwiesen 14 7160 Horb a.N. Germany Tel. +49 7451 92-0 info.ma@boschrexroth.de www.boschrexroth.com Your local contact person can be found at: www.boschrexroth.com/addresses Subject to change Printed in Germany RE 92050-01-X-B0/2019.08.23...

This manual is also suitable for:

Rexroth a4vso 11 seriesRexroth a4vso 30 series

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