Bosch rexroth A36VM Instruction Manual
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Bosch rexroth A36VM Instruction Manual

Bosch rexroth A36VM Instruction Manual

Axial piston variable motor
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Instruction manual
Axial piston
variable motor
A36VM
RE 91650-01-B/2021-07-19, replaces: 10.2017 EN

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Summary of Contents for Bosch rexroth A36VM

  • Page 1 Instruction manual Axial piston variable motor A36VM RE 91650-01-B/2021-07-19, replaces: 10.2017 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...

  • Page 3: Table Of Contents

    7.4.4 Installation with a coupling ................ 31 7.4.5 Installation on a gearbox ................32 7.4.6 Completion of assembly ................32 7.4.7 Hydraulically connecting the axial piston unit ..........33 7.4.8 Electrically connecting the axial piston unit ..........37 Performing flushing cycle ................37 RE 91650-01-B/2021-07-19, Bosch Rexroth AG...
  • Page 4 Preparing the components for storage or further use ......... 46 Disposal ������������������������������������������������������������������������������������������������� 47 Extension and conversion ����������������������������������������������������������������������� 48 Troubleshooting ������������������������������������������������������������������������������������� 49 14.1 How to proceed for troubleshooting ............49 14.2 Malfunction table ..................50 Technical data ���������������������������������������������������������������������������������������� 52 Alphabetical index ��������������������������������������������������������������������������������� 53 Bosch Rexroth AG, RE 91650-01-B/2021-07-19...

  • Page 5: About This Documentation

    Describes the requirements on a mineral oil-based hydraulic fluid and related hydrocarbons 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: Safety Instructions

    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 91650-01-B/2021-07-19...

  • Page 7: Symbols

    Automatic control, high pressure-related 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 91650-01-B/2021-07-19, Bosch Rexroth AG...

  • Page 8: Safety Instructions

    2�3 Improper use Any use other than that described as intended use is considered improper. Bosch Rexroth AG is not liable for damage resulting from improper use. The user is solely responsible for any risks arising from improper use. The following foreseeable forms of faulty usage are also considered improper (this list is not exhaustive): •...

  • Page 9: Personnel Qualifications

    • In particular, fully understanding the relationships with regard to safety devices • Knowledge regarding the function and interaction of hydraulic components. Bosch Rexroth offers you measures supporting training in specific areas. You can find an overview of the training contents on the Internet at: www.boschrexroth.com/training.

  • Page 10: General Safety Instructions

    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. Bosch Rexroth AG, RE 91650-01-B/2021-07-19...

  • 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 (up to an encapsulation) in order to avoid any hazard to persons. If necessary, make sure that these are properly implemented. ▶ For safety reasons, axial piston variable motors with beginning of control at V (e.g. with HA control) are not permissible for winch drives, g min e.g. anchor winches. Bosch Rexroth AG, RE 91650-01-B/2021-07-19...
  • Page 13 This can result in restriction or loss of load-holding functions in lifting winches. ▶ Check whether the application on your machine requires additional safety measures in order to keep the load in a safe position. ▶ If necessary, make sure these are appropriately implemented. RE 91650-01-B/2021-07-19, Bosch Rexroth AG...

  • Page 14: Personal Protective Equipment

    ▶ Check how to safely get on top of the machine/system. 2�7 Personal protective equipment Personal protective equipment is the responsibility of the user of the axial piston unit. Observe the safety regulations in your country. All pieces of personal protective equipment should be intact. Bosch Rexroth AG, RE 91650-01-B/2021-07-19...

  • Page 15: 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. RE 91650-01-B/2021-07-19, Bosch Rexroth AG...
  • Page 16 Leaks may lead to leakage of hydraulic fluid. ▶ Take appropriate measures to protect the axial piston unit from chemical or corrosive environmental conditions. Bosch Rexroth AG, RE 91650-01-B/2021-07-19...
  • Page 17 The warranty only applies to the machine configuration as delivered. The warranty will be voided if the product is incorrectly installed, commissioned or operated, or if it is used or handled improperly. RE 91650-01-B/2021-07-19, Bosch Rexroth AG...

  • Page 18: 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) Bosch Rexroth AG, RE 91650-01-B/2021-07-19...

  • Page 19: About This Product

    Fig� 2: Layout of the A36M series 10 (size 125 and 255) with double tripod joint 1 Drive shaft 5 Flushing and boost- 8 Cylinder 2 Piston pressure valve 9 Double tripod joint 3 Stroking piston 6 Control spool 4 Port plate 7 Lens plate RE 91650-01-B/2021-07-19, Bosch Rexroth AG...

  • Page 20: Functional Description

    The output speed is dependent on the input flow and the displacement of the hydraulic motor. Various control devices are available depending on requirements. Information about this can be found in data sheet 91650. Bosch Rexroth AG, RE 91650-01-B/2021-07-19...

  • Page 21: Product Identification

    3 Internal plant designation 9 Material number of the 4 Designated area for inspection stamp axial piston unit 5 Direction of rotation (viewed on 10 Type code drive shaft) – here: bi-directional 11 Customer material number 6 Barcode RE 91650-01-B/2021-07-19, Bosch Rexroth AG...

  • Page 22: 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 91650-01-B/2021-07-19...

  • Page 23: 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 91650-01-B/2021-07-19, Bosch Rexroth AG...

  • Page 24: Storing The Axial Piston Unit

    2� Perform a test run to check the axial piston unit for proper functioning and leak-tightness. 3� If storage time exceeds 24 months, replace the shaft seal. Once the max. storage time has elapsed, we recommend that you have the axial piston unit checked by your Bosch Rexroth service partner. Bosch Rexroth AG, RE 91650-01-B/2021-07-19...
  • Page 25 Transport and storage | A36VM 25/54 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 45.

  • Page 26: Installation

    • Installation drawing for the axial piston unit (can be obtained from your contact person at Bosch Rexroth, if required) • Hydraulic circuit diagram for the axial piston unit (in the data sheet and on the installation drawing) •...
  • Page 27 ▶ 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 91650-01-B/2021-07-19, Bosch Rexroth AG...

  • Page 28: Installation Position

    Fig� 6: Below-reservoir installation A36VM with installation position 1–2 Minimum required immersion depth Drain port t min (200 mm) Filling/air bleeding Minimum required distance to reservoir bottom (100 mm) Table 8: Below-reservoir installation Installation position Air bleed Filling 1 (drive shaft horizontal) 2 (drive shaft horizontal) Bosch Rexroth AG, RE 91650-01-B/2021-07-19...

  • Page 29: Above-Reservoir Installation

    Fig� 7: Above-reservoir installation A36VM with installation position 3–4 Minimum required immersion depth Drain port t min (200 mm) Filling/air bleeding Minimum required distance to reservoir bottom (100 mm) Table 9: Above-reservoir installation Installation position Air bleed Filling 3 (drive shaft horizontal) 4 (drive shaft horizontal) RE 91650-01-B/2021-07-19, Bosch Rexroth AG...

  • Page 30: Installing The Axial Piston Unit

    7�4�3 General instructions Follow these general notices when installing the axial piston unit: • Note that certain installation positions will affect the control system. Gravity, dead weight and case pressure can cause minor characteristic shifts and changes in response time. Bosch Rexroth AG, RE 91650-01-B/2021-07-19...

  • Page 31: Installation With A Coupling

    Make sure no excessive axial and radial forces are acting on the drive shaft. 8� Details on the required tools and tightening torques for the mounting bolts are available from the machine/system manufacturer. RE 91650-01-B/2021-07-19, Bosch Rexroth AG...

  • Page 32: 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. Fig� 9: Removing transport protection...

  • Page 33: Hydraulically Connecting The Axial Piston Unit

    – The drain line inflow in the reservoir should always be below the minimum fluid level (see chapter 7.3 "Installation position" on page 28). • If the axial piston unit is equipped with installed screw fittings, do not remove them. Screw the stud end of the fitting directly into the installed fitting. RE 91650-01-B/2021-07-19, Bosch Rexroth AG...
  • Page 34 ▶ 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. Port overview Fig� 10: Port overview A36VM with EP1, EP2 control, working ports at rear (port plate 1) Bosch Rexroth AG, RE 91650-01-B/2021-07-19...
  • Page 35 M apply. For values, see Table 11. • Mounting bolts: For mounting bolts with metric ISO threads according to DIN 13 and/or ASME B1.1 threads, we recommend checking the tightening torque in individual cases in accordance with VDI 2230. RE 91650-01-B/2021-07-19, Bosch Rexroth AG...
  • Page 36 6� Check all pipes and hose lines and every combination of connecting pieces, couplings or connecting points with hoses or pipes to ensure they are in safe working condition. Relationship between direction of rotation and flow direction: Clockwise rotation: A to B Counter-clockwise rotation: B to A Bosch Rexroth AG, RE 91650-01-B/2021-07-19...

  • Page 37: Electrically Connecting The Axial Piston Unit

    (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.

  • Page 38: 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 39: Testing The Hydraulic Fluid Supply

    Commissioning | A36VM 39/54 Details of minimum requirements for hydraulic fluids can be found in Bosch Rexroth data sheet 90220. The titles of the data sheets can be found in Table 1 "Required and supplementary documentation" on page 5. Bosch Rexroth evaluates hydraulic fluids on the basis of the Fluid Rating according to data sheet 90235.

  • Page 40: Performing A Functional Test

    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: Bosch Rexroth AG, RE 91650-01-B/2021-07-19...

  • Page 41: Recommissioning After Standstill

    The following criteria may make recommissioning necessary: • 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 38. RE 91650-01-B/2021-07-19, Bosch Rexroth AG...

  • Page 42: 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. Bosch Rexroth AG, RE 91650-01-B/2021-07-19...

  • Page 43: 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 44: 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 45: 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 46: Removal And Replacement

    6� Remove the axial piston unit. Use a suitable lifting device. 7� Completely drain the axial piston unit. 8� Plug all openings. 11�4 Preparing the components for storage or further use ▶ Proceed as described in chapter 6.2 "Storing the axial piston unit" on page 24. Bosch Rexroth AG, RE 91650-01-B/2021-07-19...

  • Page 47: 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 RE 91650-01-B/2021-07-19, Bosch Rexroth AG...

  • Page 48: 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. The warranty will be voided if the unit is modified or extended. Setting screws are protected against unauthorized adjustment by tamper-proof caps.

  • Page 49: Troubleshooting

    ▶ Try to get a clear idea of the cause of the fault. Directly ask the (machine) operator. ▶ Document the work carried out. ▶ If the fault cannot be corrected, please refer to one of the contract addresses at: https://addresses.boschrexroth.com. RE 91650-01-B/2021-07-19, Bosch Rexroth AG...

  • Page 50: Malfunction Table

    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 Drive unit defective (e.g. hydraulic pump)
  • Page 51 Rotational speed or torque Insufficient flow in hydraulic pump Check function of the hydraulic pump cannot be reached Minimum or maximum displacement set Contact Bosch Rexroth Service incorrectly Control of the control device defective Check control (machine/system manufacturer) Insufficient pilot pressure or control pressure Check pilot pressure or control pressure Contact Bosch Rexroth Service...

  • Page 52: Technical Data

    The permissible technical data for your axial piston unit can be found on the data sheet 91650. The data sheet can be found in the online product catalog at www.boschrexroth.com/p-A36VM Order-related technical data for your axial piston unit can be found in the order confirmation. Bosch Rexroth AG, RE 91650-01-B/2021-07-19...

  • Page 53: Alphabetical Index

    Warranty ..... 17, 33, 48 Product description ....19 valve ........20 Weight ........22 Property damage ....15 Flushing cycle ......37 Functional description Control .........20 Qualification ......9 Motor function .....20 Functional test .......40 Recommissioning After standstill .....41 Identification ......21 Removal........46 Inside-reservoir installation ..29 RE 91650-01-B/2021-07-19, Bosch Rexroth AG...
  • Page 54 Bosch Rexroth AG Glockeraustraße 2 89275 Elchingen Germany Tel. +49 7308 82-0 info.ma@boschrexroth.de www.boschrexroth.com Your local contact person can be found at: https://addresses.boschrexroth.com Subject to change RE 91650-01-B/2021-07-19...

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