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Bosch HAD2,8-250-20, Operating Instructions Manual

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Technical data

Bosch Rexroth AG

, Type HAD...-1X/ and HAD...-2X/, RE 50150-B/10.20

Table 7: Fault table 

Fault

Possible cause

Remedy

Oil loss at interfaces to 
the outside

Incorrect order of assembly in service case

 

▶

Have the service performed by an expert only.

O-ring of the sealing is damaged and/or 
hardened due to excessive oil temperature

 

▶

Have the gas valve replaced by an expert.

 

▶

Check the oil temperature.

Oil port cracked due to non-tension-free 
assembly of the diaphragm type 
accumulator

 

▶

Assemble it de-energized.

Inadmissible environmental force effect

 

▶

Assemble free of stress.

Damage to the oil valve during transport

 

▶

Perform a visual inspection after transport.

Impossible to assemble

Wrong thread

 

▶

Replace the affected parts.

Thread damaged

 

▶

Replace the affected parts.

15 Technical data

For the admissible technical data of the diaphragm type accumulator, refer to 
data sheet 50150, see chapter 1.2 "Required and amending documentation".

The data sheet can be found on the Internet at

www.boschrexroth.com/various/utilities/mediadirectory

For further information, refer to the online product catalog
Industrial hydraulics: 

www.boschrexroth.com/ics

Summary of Contents for HAD2,8-250-20

Page 1: ...Operating instructions RE 50150 B 10 20 Replaces 12 11 English Diaphragm type accumulator Type HAD 1X and HAD 2X ...

Page 2: ...he user from the obligation of own judgment and verification Our products are subject to a natural process of wear and aging All rights with Bosch Rexroth AG also in case of applications for industrial property protection It may not be reproduced or given to third parties without consent of Bosch Rexroth AG The cover shows an example configuration The product supplied may therefore differ from the...

Page 3: ...ner or the responsible service point You can also find them under www boschrexroth com ES Este producto únicamente podrá utilizarse cuando disponga de las instrucciones de servicio en un idioma que entienda y haya entendido su contenido En caso contrario diríjase a su persona de contacto de Bosch Rexroth o al servicio técnico competente que podrá encontrar también en la dirección www boschrexroth ...

Page 4: ...cia técnica Encontre os em www boschrexroth com RO Aveţi voie să utilizaţi acest produs doar după ce aţi primit acest manual de utilizare într o versiune de limbă inteligibilă pentru dumneavoastră şi aţi înţeles conţinutul său Dacă aceste condiţii nu sunt îndeplinite adresaţi vă persoanei dumneavoastră de contact de la Bosch Rexroth sau la service ul Bosch Rexroth competent Găsiţi aceste service u...

Page 5: ...roduct description 17 5 2 Product identification 18 6 Transport and storage 20 6 1 Transport of the diaphragm type accumulator 20 6 2 Shipping of the diaphragm type accumulator 21 6 3 Storage of the diaphragm type accumulator 21 7 Installation 22 7 1 Unpacking 22 7 2 Installation conditions 22 7 3 Required tools 23 7 4 Assembly of the diaphragm type accumulator 23 8 Commissioning 27 8 1 Preparing ...

Page 6: ...6 44 Bosch Rexroth AG Type HAD 1X and HAD 2X RE 50150 B 10 20 Contents 15 Technical data 40 16 Alphabetical index 41 ...

Page 7: ...equired and amending documentation Only commission the diaphragm type accumulator HAD 1X and HAD 2X if you have been provided with the documentation marked with the book symbol and you have understood and observed it Table 1 Required and amending documentation Title Document number Document type Diaphragm type accumulator type HAD series 1X and 2X 50150 Data sheet Hydraulic Fluids Based on Mineral...

Page 8: ...ce measures described must be observed Safety instructions are set out as follows SIGNAL WORD Type and source of danger Consequences in case of non compliance Hazard avoidance measures Enumeration Warning sign Draws attention to the danger Signal word Identifies the degree of danger Type and source of danger Specifies the type and source of danger Consequences Describes the consequences of non com...

Page 9: ...Meaning If this information is not observed the product cannot be optimally used and or operated Individual independent action 1 2 3 Numbered instruction The numbers indicate that the actions must be carried out one after the other 1 3 3 Abbreviations The following abbreviations are used in this documentation Table 4 Abbreviations Abbreviation Meaning Type HAD 1X and HAD 2X Diaphragm type accumula...

Page 10: ...nse of the Pressure Equipment Directive 2014 68 EU The diaphragm type accumulator HAD 1X and HAD 2X is exclusively intended for integration into a machine or system or to be assembled with other components to form a machine or system During project planning the basic principles of the Pressure Equipment Directive and the Machinery Directive are to be observed for the intended use of the diaphragm ...

Page 11: ...of the appropriate technical terms For transporting and handling the product additional knowledge of how to handle lifting gear and the necessary attachment devices is required In order to ensure safe use these activities may only be carried out by an expert in the respective field or an instructed person under the direction and supervision of an expert Experts are those who can recognize potentia...

Page 12: ...ns due to unsuitable spare parts Comply with the technical data and environmental conditions indicated in the product documentation and on the type cap The installation or use of inappropriate products in safety relevant applications could result in unintended operating states when being used which in turn could cause personal injuries and or damage to property Therefore only use a product for saf...

Page 13: ...l protective equipment e g safety goggles Keep open fire and ignition sources away from the diaphragm type accumulator When dealing with hydraulic fluids you must imperatively observe the information of the hydraulic fluid manufacturer Risk of poisoning and injuries due to leaking hydraulic fluid The contact with hydraulic fluids leads to health hazards e g eye injuries skin lesions poisoning duri...

Page 14: ...l protective equipment During operation and maintenance work as well as during installation and removal of the diaphragm type accumulator you must always wear the following personal protective equipment Heat or cold resistant protective gloves Ear protection Safety shoes Perfectly fitting safety goggles Protective helmet 2 8 Obligations of the machine end user The diaphragm type accumulator is sup...

Page 15: ...lation is free of dust and foreign substances in order to prevent foreign particles e g welding beads or metal chips from getting into the hydraulic lines and causing wear or malfunctions at the diaphragm type accumulator The diaphragm type accumulator must be protected from dirt during installation Make sure that all connections hydraulic lines and attachment parts e g measuring devices are clean...

Page 16: ...Fig 1 Scope of delivery of the diaphragm type accumulator type HAD 1X and HAD 2X The scope of delivery includes 1 diaphragm type accumulator type HAD 1X or HAD 2X 2 1 operating instructions in German and English language 1 declaration of conformity only for diaphragm type accumulators having a capacity of more than 1l The diaphragm type accumulator is supplied with the following parts being mounte...

Page 17: ...eet 50150 5 1 Product description Diaphragm type accumulators are intended for use in hydraulic systems They are used for energy storage shock and vibration absorption and leakage oil compensation or volume compensation The high compressibility of gases is used for the diaphragm type accumulator Diaphragm type accumulators of type HAD 1X and HAD 2X basically comprise the following components 1 3 4...

Page 18: ...en the operating pressure is reduced the gas expands again and feeds the hydraulic system with fluid The closing poppet 3 located at the bottom of the diaphragm completely covers the fluid connection 4 when the diaphragm type accumulator is discharged thus preventing the diaphragm from exiting into the fluid channel and being damaged Via the gas port 1 the gas side of the diaphragm type accumulato...

Page 19: ...iaphragm type accumulator marking 1 CE mark only for diaphragm type accumulators having a capacity of 1 liter 2 Marking of material batch 3 Embossing on the housing of the diaphragm type accumulator XX Rexroth R90103950898 V 2 8 L PS 250 BAR TS 15 80 C HAD2 8 250 20 Made in Germany 7920 FG2 N2 GAS 0 BAR 2019 SN 19W41 00001 1 2 3 4 5 6 7 8 9 10 11 12 13 Fig 5 Example of embossing on the housing of ...

Page 20: ... for a stable center of gravity position during transport Use your personal protective equipment e g safety shoes Put the diaphragm type accumulator carefully onto the contact surface in order not to damage it CAUTION Risk of damage Impact or similar forces may damage the diaphragm type accumulator Pack the diaphragm type accumulator using shock absorbing materials e g cardboard Allow the diaphrag...

Page 21: ...d gases Optimum storage temperature 5 C to 20 C Ensure a constant temperature if possible The storage facilities must be dry Protect the diaphragm type accumulator against impacts during storage Ensure that the cover cap at the gas valve and the protective cap at the oil valve are attached The maximum storage time of the diaphragm type accumulator amounts to 5 years Carry out a visual inspection o...

Page 22: ...phragm type accumulator Check the diaphragm type accumulator for transport damage and completeness see chapter 4 Scope of delivery Dispose of the packaging in accordance with the currently applicable national provisions in your country 7 2 Installation conditions The diaphragm type accumulator is to be fixed in such a way that a safe support during operational accelerations or in case of a potenti...

Page 23: ...aphragm and bladder type accumulators Open end wrench for information on wrench sizes see data sheet 50150 according to fluid connection variant Table 5 Required wrench sizes of the open end wrench Diaphragm type accumulator Volume in liters Open end wrench Wrench size up to HAD 0 35 19 mm 27 mm 32 mm from HAD 0 35 41 mm 50 mm 7 4 Assembly of the diaphragm type accumulator WARNING Bursting of the ...

Page 24: ...he fluid connection of the diaphragm type accumulator Make sure that the fluid connection is clean and free from foreign matter Ensure that the connection thread is intact Check the fluid connection for available seals Place the diaphragm type accumulator on the oil port Manually screw the accumulator into the thread of the oil port Make sure that the thread interlocks after one rotation at the la...

Page 25: ...amp Fig 8 Retaining clamp For mounting the diaphragm type accumulator by means of a retaining clamp the following work steps are required Mount the retaining clamp of the diaphragm type accumulator to the provided positions on the wall or the machine Position the accumulator in the retaining clamp so that the embossing on the housing remains visible Tighten the screws of the retaining clamp ...

Page 26: ... now mounted 7 4 3 Diaphragm type accumulator mounted on the male thread Fig 9 Mounting on the male thread For mounting the diaphragm type accumulator by means of fitting at the male thread the following work steps are required Remove the protective cap on the fluid connection of the diaphragm type accumulator Position the accumulator in the provided opening of the mounting element so that the emb...

Page 27: ...the embossing Leakage of hydraulic fluid under high pressure due to faulty assembly of the diaphragm type accumulator Risk of injury Damage to property Ensure that the diaphragm type accumulator has been mounted by an expert see chapter 2 4 Qualification of personnel completely and without tension stress before commissioning the diaphragm type accumulator CAUTION Damage to property Polluted hydrau...

Page 28: ... diagram or in the system parts list Check that the hydraulic fluid used in the hydraulic system corresponds to the specifications provided in the data sheet of the diaphragm type accumulator Make sure that the maximum admissible operating pressure of the diaphragm type accumulator is equal to or greater than the maximum operating pressure of the hydraulic circuit Check whether the operating tempe...

Page 29: ...harging and test device DANGER Uncontrolled release of a significant amount of gas Danger to life Risk of suffocation Make sure that the workplace is sufficiently ventilated For checking the gas filling pressure always use the suitable charging and test device for diaphragm type accumulator with material number 0538103012 or for bladder and diaphragm type accumulator with material number 053810301...

Page 30: ...he charging the diaphragm type accumulator heats up Wait until the diaphragm type accumulator has cooled down Check the pre filling pressure and correct it if necessary Remove the charging and test valve Screw the protective cap back on the accumulator Mark the set pre filling pressure visibly on the diaphragm type accumulator In this connection do not use stamps punch presses or other mechanical ...

Page 31: ...e to property Check the diaphragm type accumulator for external corrosion regularly depending on the application Determine the frequency of the corrosion checks according to the application Check which provisions or ordinances are to be complied with in your country and or for your application During operation of the diaphragm type accumulator observe the following points Make sure that the emboss...

Page 32: ...cover the gas port by means of the cover caps provided Do not use solvents or aggressive cleaning agents Only clean the diaphragm type accumulator using a dry lint free cloth Do not use a high pressure washer for cleaning Check the hydraulic lines line connections and seals for leak tightness and check the diaphragm type accumulator for external corrosion To do so follow the system manufacturer s ...

Page 33: ... significant amount of gas Danger to life Risk of suffocation Make sure that the workplace is sufficiently ventilated For checking the gas filling pressure always use the suitable charging and test device for diaphragm type accumulator with material number 0538103012 or for bladder and diaphragm type accumulator with material number 0538103014 Remove the cover cap from the gas side of the diaphrag...

Page 34: ...schedule must guarantee that the operating conditions of the diaphragm type accumulator stay in the prescribed limits during the entire period of use In particular compliance with the following operating parameters has to be ensured Operating pressure Operating temperature range Surface temperature Leak tightness Changes made to these parameters increase the wear of the diaphragm type accumulator ...

Page 35: ... test device for diaphragm type accumulator with material number 0538103012 or for bladder and diaphragm type accumulators with material number 0538103014 Open end wrench For further details on the wrench sizes refer to chapter 7 Assembly table 5 11 2 Preparing disassembly Decommission the overall system as described in the operating instructions of the system Afterwards prepare the disassembly of...

Page 36: ... the workplace is sufficiently ventilated CAUTION Low surface temperature when draining the gas Danger of frostbite Only touch the surfaces of the diaphragm type accumulator with cold resistant protective clothing e g gloves or do not work at cold surfaces Observe the protective measures of the system manufacturer The pre filling pressure depends on the temperature During the discharging the diaph...

Page 37: ...tions in chapter 11 3 Disassembly process 12 1 Environmental protection Careless disposal of the diaphragm type accumulator the contained hydraulic fluid and the packaging material may pollute the environment Dispose of the diaphragm type accumulator and the packaging material in accordance with the applicable national regulations in your country Dispose of the hydraulic fluid in accordance with t...

Page 38: ...e any changes in the overall system in which the diaphragm type accumulator is integrated Were there any changes to the diaphragm type accumulator s operating conditions or operating range Has any maintenance work been performed recently Is there an inspection or maintenance record Have modifications e g refittings or repair works been performed at the overall system machine system electrical syst...

Page 39: ...l Application out of specification Stop the system immediately Replace the diaphragm type accumulator The diaphragm type accumulator must not be put into operation again but must be disposed of see chapter 12 Disposal Operation outside the prescribed temperature range Stop the system immediately Replace the diaphragm type accumulator The diaphragm type accumulator must not be put into operation ag...

Page 40: ...m type accumulator Assemble it de energized Inadmissible environmental force effect Assemble free of stress Damage to the oil valve during transport Perform a visual inspection after transport Impossible to assemble Wrong thread Replace the affected parts Thread damaged Replace the affected parts 15 Technical data For the admissible technical data of the diaphragm type accumulator refer to data sh...

Page 41: ...ult table 39 I Identification 18 Inspection 32 Installation 22 Installation conditions 22 Intended use 10 M Maintenance 32 33 Maintenance schedule of the system 34 Test intervals 34 Modification 37 O Operation 31 P Product description 17 Q Qualification 11 R Repair 34 Replacement 35 Required documentation 7 S Safety instructions 10 General 12 Product specific 13 Signal word 8 Scope of delivery 16 ...

Page 42: ...42 44 Technical data Bosch Rexroth AG Type HAD 1X and HAD 2X RE 50150 B 10 20 ...

Page 43: ...Technical data 43 44 Type HAD 1X and HAD 2X RE 50150 B 10 20 Bosch Rexroth AG ...

Page 44: ...engießer 1 97816 Lohr am Main Germany Phone 49 0 93 52 40 30 20 my support boschrexroth de www boschrexroth com For your local contact partner please refer to www boschrexroth com Subject to change without notice Printed in Germany RE 50150 B 10 20 ...

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