RE 91520-01-B/02.11 | A17FO/A17FNO Series 10 Bosch Rexroth AG 3/48 Contents Contents About this manual ..................4 1.1 Related documents ...................4 1.2 Abbreviations used ...................5 General safety instructions ................6 2.1 Intended use .....................6 2.2 Improper use .....................6 2.3 Personnel qualifications ................7 2.4 Safety instructions in this manual .............7...
4/48 Bosch Rexroth AG A17FO/A17FNO Series 10 | RE 91520-01-B/02.11 About this manual About this manual This manual contains important information on the safe and appropriate installation, transport, commissioning, maintenance, removal and simple troubleshooting of the axial piston fixed pump A17FO/A17FNO Series 10.
RE 91520-01-B/02.11 | A17FO/A17FNO Series 10 Bosch Rexroth AG 5/48 About this manual Abbreviations used As umbrella term for "A17FO/A17FNO axial piston fixed pump", the designation "axial piston unit" will be used in the following. Table 2: Abbreviations Abbreviation Meaning...
For example, in ex- protection areas or in safety-related parts of a control system (functional safety). Bosch Rexroth AG shall accept no liability whatsoever for damage resulting from improper use. The user shall bear all risks arising from improper use.
RE 91520-01-B/02.11 | A17FO/A17FNO Series 10 Bosch Rexroth AG 7/48 General safety instructions Similarly, the following predictable faulty usages are also considered to be not as intended: • Using the axial piston unit in explosive environments unless the component or system has been certified as compliant with the ATEX directive 94/9/EC •...
8/48 Bosch Rexroth AG A17FO/A17FNO Series 10 | RE 91520-01-B/02.11 General safety instructions The signal words have the following meaning: Signal word Application DANGER! imminently Indicates an hazardous situation which, if not avoided, will certainly result in death or serious injury.
RE 91520-01-B/02.11 | A17FO/A17FNO Series 10 Bosch Rexroth AG 9/48 General safety instructions • Contact with hydraulic fluid may cause health damage. – When working with hydraulic fluids, strictly observe the safety instructions provided by the hydraulic fluids manufacturer. During transport •...
10/48 Bosch Rexroth AG A17FO/A17FNO Series 10 | RE 91520-01-B/02.11 Delivery contents 3 Delivery contents Fig. 1: Axial piston unit Included in the delivery contents are: • Axial piston unit as per order confirmation The following parts are also installed on delivery: •...
RE 91520-01-B/02.11 | A17FO/A17FNO Series 10 Bosch Rexroth AG 11/48 Product description 4 Product description Performance description The axial piston fixed pump generates a hydraulic fluid flow. It is designed for use in commercial vehicles. Refer to the data sheet and order confirmation for the technical data, operating conditions and operating limits of the axial piston unit.
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12/48 Bosch Rexroth AG A17FO/A17FNO Series 10 | RE 91520-01-B/02.11 Product description 4.2.2 Functional description Pump Torque and a rotational speed are applied to the drive shaft (1) by an engine. The drive shaft and cylinder (3) pick up and turn the piston (2). The cylinder then glides on the control plate (4).
RE 91520-01-B/02.11 | A17FO/A17FNO Series 10 Bosch Rexroth AG 13/48 Product description Product identification The axial piston unit can be identified from the name plate. The following example shows a A17FO name plate: Rexroth DE - 89275 Elchingen CNR: X1234567890Y...
14/48 Bosch Rexroth AG A17FO/A17FNO Series 10 | RE 91520-01-B/02.11 Transport and storage 5 Transport and storage Transporting the axial piston unit CAuTION! Risk of damage! Striking or impulsive forces could damage the axial piston unit. Do not strike the drive shaft of the axial piston unit.
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RE 91520-01-B/02.11 | A17FO/A17FNO Series 10 Bosch Rexroth AG 15/48 Transport and storage You can hoist the axial piston unit as shown in Fig. 5 with the ring screw screwed into the drive shaft. Fig. 5: Fixing the ring screw...
16/48 Bosch Rexroth AG A17FO/A17FNO Series 10 | RE 91520-01-B/02.11 Transport and storage Storing the axial piston unit Requirement • The storage areas must be free of corrosive materials and gasses. • The storage areas must be dry. • Ideal storage temperature: +5 °C to +20 °C.
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RE 91520-01-B/02.11 | A17FO/A17FNO Series 10 Bosch Rexroth AG 17/48 Transport and storage After removal If a dismounted axial piston unit is to be stored, it must be preserved against corrosion for the duration of the storage. The following instructions only refer to axial piston units which are operated with a mineral-oil based hydraulic fluid.
18/48 Bosch Rexroth AG A17FO/A17FNO Series 10 | RE 91520-01-B/02.11 Installation 6 Installation Prior to installation, the following documents must be available: • Installation drawing for axial piston unit (can be obtained from your responsible contact person at Rexroth) •...
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RE 91520-01-B/02.11 | A17FO/A17FNO Series 10 Bosch Rexroth AG 19/48 Installation Make certain that the suction line flows into the reservoir below the minimum fluid level in all operational states. This will prevent air from being drawn in and foam from being formed.
20/48 Bosch Rexroth AG A17FO/A17FNO Series 10 | RE 91520-01-B/02.11 Installation Installation position The following installation positions are permissible. The shown piping layout illustrates the basic layout. The case drain chamber is internally connected to the suction chamber. A separate case drain line from the case to the reservoir is not required.
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RE 91520-01-B/02.11 | A17FO/A17FNO Series 10 Bosch Rexroth AG 21/48 Installation 6.3.2 Above-reservoir installation Above-reservoir installation is when the axial piston unit is installed above the minimum fluid level of the reservoir. Risk of damage due to lack of lubrication!
22/48 Bosch Rexroth AG A17FO/A17FNO Series 10 | RE 91520-01-B/02.11 Installation Installing the axial piston unit DANGER! Systems which are in operation pose a risk of injury! Working on operating systems poses a danger to life and limb. The work steps described in this chapter must only be performed on systems which are at a standstill.
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RE 91520-01-B/02.11 | A17FO/A17FNO Series 10 Bosch Rexroth AG 23/48 Installation Direction of rotation on delivery On delivery, the pressure connection (1) is pre-installed in the right-hand service line port of the axial piston unit. The permissible drive direction of the pump looking at the drive shaft: counter-clockwise.
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24/48 Bosch Rexroth AG A17FO/A17FNO Series 10 | RE 91520-01-B/02.11 Installation 6.4.3 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 components when selecting the required tools.
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RE 91520-01-B/02.11 | A17FO/A17FNO Series 10 Bosch Rexroth AG 25/48 Installation 6.4.5 Installation with clutch The installation procedure for the axial piston unit with a coupling is described in detail in the following: Install the specified coupling half onto the drive shaft of the axial piston unit according to the instructions of the coupling manufacturer.
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26/48 Bosch Rexroth AG A17FO/A17FNO Series 10 | RE 91520-01-B/02.11 Installation 6.4.7 Completing installation Remove any mounted transport screws. Remove the transport protection. The axial piston unit was delivered with protective covers and plastic plugs or threaded plugs. These must be removed before connecting. Use appropriate tools.
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RE 91520-01-B/02.11 | A17FO/A17FNO Series 10 Bosch Rexroth AG 27/48 Installation 6.4.8 Hydraulically connecting the axial piston unit The machine or system manufacturer is responsible for dimensioning the lines. The axial piston unit must be connected to the rest of the hydraulic system in accordance with the hydraulic circuit diagram of the machine or system manufacturer.
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28/48 Bosch Rexroth AG A17FO/A17FNO Series 10 | RE 91520-01-B/02.11 Installation Notes on routing the lines Observe the following notes when routing the suction and pressure lines. Make certain that the suction line (pipe or hose) is as short and straight as possible.
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RE 91520-01-B/02.11 | A17FO/A17FNO Series 10 Bosch Rexroth AG 29/48 Installation Port overview Fig. 13: Port overview A17FO/A17FNO Series 10 Table 8: Ports A17FO/A17FNO Series 10 Designation Port for Standard Maximum State pressure [bar] Service line DIN ISO 228 Fixing threads...
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30/48 Bosch Rexroth AG A17FO/A17FNO Series 10 | RE 91520-01-B/02.11 Installation Risk of mix-ups with The axial piston units are used in application areas with metric as well as with threaded connections Imperial systems of units. Both the system of units as well as the size of female thread and threaded plug (e.g.
RE 91520-01-B/02.11 | A17FO/A17FNO Series 10 Bosch Rexroth AG 31/48 Commissioning 7 Commissioning wARNING! Danger while working in the danger zone of a machine or system! It is not permissible to work in the danger zone of a machine or system.
32/48 Bosch Rexroth AG A17FO/A17FNO Series 10 | RE 91520-01-B/02.11 Commissioning First commissioning CAuTION! Risk of damage to the product! Any contamination of the hydraulic fluid will lead to wear and malfunctions. In particular, contaminants, such as welding beads or metal cuttings in the hydraulic lines, may damage the axial piston unit.
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RE 91520-01-B/02.11 | A17FO/A17FNO Series 10 Bosch Rexroth AG 33/48 Commissioning Danger of environmental contamination! CAuTION! The discharge or spillage of hydraulic fluid while filling the axial piston unit can lead to environmental pollution and contamination of the groundwater. When filling and changing the hydraulic fluid, always place a drip tray under the axial piston unit.
34/48 Bosch Rexroth AG A17FO/A17FNO Series 10 | RE 91520-01-B/02.11 Commissioning 7.1.3 Performing functional test wARNING! Risk of injury in case of incorrectly connected machine or system! Any change of the connections will lead to malfunctions (e.g. lift instead of lower) and thus represents a corresponding danger to persons and equipment.
RE 91520-01-B/02.11 | A17FO/A17FNO Series 10 Bosch Rexroth AG 35/48 Operation Running-in phase The bearings and sliding surfaces are subject to a running-in phase. The increased friction at the start of the running-in phase results in increased heat development which decreases with increasing operating hours. The volumetric and mechanical-hydraulic efficiency increases as well through the conclusion of the running-in phase of approx.
36/48 Bosch Rexroth AG A17FO/A17FNO Series 10 | RE 91520-01-B/02.11 Maintenance and repair 9 Maintenance and repair Cleaning and care CAuTION! Damage to the surface caused by solvents and aggressive detergents! Aggressive detergents may damage the seals on the axial piston unit and cause them to age faster.
RE 91520-01-B/02.11 | A17FO/A17FNO Series 10 Bosch Rexroth AG 37/48 Maintenance and repair 9.2.1 Checking the inspection hole Risk of property damage! CAuTION! If hydraulic fluid leaks from the inspection hole, both the axial piston unit and the power take-off may drain and be damaged.
38/48 Bosch Rexroth AG A17FO/A17FNO Series 10 | RE 91520-01-B/02.11 Maintenance and repair Repair Rexroth offers a comprehensive range of services for the repair of Rexroth axial piston units. Repairs to the axial piston unit may only be performed by authorized, skilled and instructed personnel.
RE 91520-01-B/02.11 | A17FO/A17FNO Series 10 Bosch Rexroth AG 39/48 Decommissioning 10 Decommissioning The axial piston unit is a component that does not require decommissioning. For this reason, this chapter of the manual does not contain any information. For details about how to remove or replace your axial piston unit, please refer to chapter "11 Removal and replacement".
40/48 Bosch Rexroth AG A17FO/A17FNO Series 10 | RE 91520-01-B/02.11 Removal and replacement Danger of environmental contamination! CAuTION! The discharge or spillage of hydraulic fluid while removing the axial piston unit can lead to environmental pollution and contamination of the groundwater.
RE 91520-01-B/02.11 | A17FO/A17FNO Series 10 Bosch Rexroth AG 41/48 Disposal 12 Disposal Observe the following points when disposing of the axial piston unit: Completely empty the axial piston unit. Dispose of the hydraulic fluid according to the national regulations of your country.
42/48 Bosch Rexroth AG A17FO/A17FNO Series 10 | RE 91520-01-B/02.11 Troubleshooting 14 Troubleshooting The following table may assist you in troubleshooting. The table makes no claim for completeness. In practical use, problems which are not listed here may also occur.
RE 91520-01-B/02.11 | A17FO/A17FNO Series 10 Bosch Rexroth AG 43/48 Troubleshooting 14.2 Malfunction table Table 11: Malfunction table - fixed pump Malfunction Possible cause Remedy Unusual noises Drive speed too high. Machine or system manufacturer. Wrong direction of rotation. For how to convert the pressure connection, see chapter "6.4.2 Direction of rotation and changing...
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44/48 Bosch Rexroth AG A17FO/A17FNO Series 10 | RE 91520-01-B/02.11 Table 11: Malfunction table - fixed pump Malfunction Possible cause Remedy Pressure/flow fluctuations Axial piston unit not or insufficiently air bled. Completely air bleed axial piston unit. Insufficient suction conditions, e.g. air in the...
RE 91520-01-B/02.11 | A17FO/A17FNO Series 10 Bosch Rexroth AG 45/48 Technical data 15 Technical data The technical data of your axial piston unit can be found in data sheet RE 91510 (A17FNO) and RE 91520 (A17FO). The data sheet can be found on the internet at www.boschrexroth.com/axial-piston-pumps...
46/48 Bosch Rexroth AG A17FO/A17FNO Series 10 | RE 91520-01-B/02.11 Index Index Inspection schedule 36 Installation 18, 22 Abbreviations 5 Completing 26 Above-reservoir installation 21 General instructions 24 Address directory 45 On a gearbox 25 Air bleed 20, 21 Preparation 22...
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RE 91520-01-B/02.11 | A17FO/A17FNO Series 10 Bosch Rexroth AG 47/48 Index Safety instructions 6, 7 Spare parts 38 Storage 14 Storage time 16 Storing 16 Suction port 20, 21 Technical data 45 Tightening torques Female threads and threaded plugs Pressure connection 23...
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Bosch Rexroth AG Hydraulics Axial piston units Glockeraustrasse 4 89275 Elchingen, Germany Tel. +49-7308-82-0 Fax +49-7308-72-74 info.brm-ak@boschrexroth.de www.boschrexroth.com/axial-piston-pumps Printed in Germany RE 91520-01-B/02.11...
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