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MRF 2 NU MultiRheo Filter

 

Maintenance and Servicing 

5.1 General 

Below follows a description of the maintenance and servicing to be performed at regular 
intervals. The filter’s serviceability, operational reliability and service life substantially depend 
on performing maintenance and servicing work regularly and carefully. 

 

5.2 Maintenance 

Measures 

• 

The replacement parts have to satisfy the manufacturer’s technical specifications. This is 
ensured when HYDAC original parts are used. 

• 

Tools, working area and equipment are to be kept clean. 

• 

After taking the filter apart, clean all components, checking them for damage or wear. If 
necessary, replace them. 

• 

When replacing a filter element, extreme care is to be taken that no dirt or other foreign 
matter is introduced. 

 

5.3 

Frequency of Changing the Filter Elements 

The filter is equipped with a clogging indicator for monitoring the filter elements. 

When the clogging indicator is triggered this shows that the filter element has to be replaced 
immediately. 

When no clogging indicator has been fitted, we recommend that elements be changed in 
specific intervals, however at least once a year. (The frequency of changing the filter 
elements depends on the filter design and the conditions under which the filter is operated.) 

When filter elements are subjected to high dynamic loading it may prove necessary to 
change them more frequently. The same applies to commissioning, repair work or hydraulic 
fluid oil changes. 

Standard clogging indicators are not triggered unless there is a flow through the filter. As to 
electrical clogging indicators, the output signal can also be processed and indicated on the 
control panel continuously until acknowledging the fault by eliminating it (i.e. changing the 
filter element(s) and cold-starting the system). 

If the clogging indicator is only triggered upon cold-starting, this may indicate that the filter 
element(s) may not yet require changing.

 

 

HYDAC Filtertechnik GmbH 

en 

Page 14

BeWa MRF2NU 3341025 en.doc 

2007-09-24

 

Summary of Contents for MRF 2 NU

Page 1: ...MRF 2 NU MultiRheo Filter Operating and Maintenance Instructions English Doc 3341025 ...

Page 2: ...provided herein is correct however errors cannot be precluded The information contained herein does not represent a commitment on the part of the authors Consequently no liability is assumed for any errors or omissions inherent in this document including consequential damage or loss The information provided herein is checked on a regular basis with corrections being entered in subsequent editions ...

Page 3: ... during Normal Operation 10 1 9 Hazards Posed by Stored Residual Energy 10 1 10Modifications to the MRF 10 2 Included with the Filter As Supplied 11 3 Installation 11 3 1 Hydraulic Hook up 11 3 1 1 Remarks Pertaining to Piping Tubing 12 4 Commissioning 13 5 Maintenance and Servicing 14 5 1 General 14 5 2 Maintenance Measures 14 5 3 Frequency of Changing the Filter Elements 14 6 Changing Filter Ele...

Page 4: ...ntly there might be deviations in technical details illustrations and dimensions In these cases we go to every effort to keep your documentation current by sending you updates But we need your help Please make sure that you incorporate the updates in your documentation and that non current sections are removed If you discover errors while reading the documentation or have suggestions or other usef...

Page 5: ...tion in the operating instructions no longer being completely accurate or sufficient When making modifications or performing repair work to components affecting the safety of the product the product may not be put back into operation until it has been examined and released by a HYDAC representative Please notify us immediately of any modifications made to the product whether by you or a third part...

Page 6: ...g is featured in the upper right corner of each page Product designation Page no Edition date of chapter section The documentation number edition and index are featured in the lower left corner of each page and on the cover sheet of the manual This information features the following format BeWa Product 12345678a en Index Documentation no The documentation no is a stock no which is used to order th...

Page 7: ... or other equipment and property The MRF is to be used as follows solely for its designated use only when in a safe perfect condition Any faults or malfunctions which might impair safety are to be properly repaired or remedied immediately Our General Terms and Conditions apply They are made available to the owner upon concluding purchase of the unit at the latest Any and all warranty and liability...

Page 8: ...lly utilize all the features offered by your MRF 1 3 Proper Designated Use The MultiRheoFilter MRF is a stationary filtration unit used for the full flow and bypass filtration of low viscosity fluids Any use deviating from what is specified herein shall constitute improper use The manufacturer will assume no liability for any loss or damage as the result thereof Proper or designated use of the MRF...

Page 9: ...The MRF may only be operated by properly trained and instructed personnel The areas of responsibility of your staff must be established in a clear cut manner Staff undergoing training may not use the MRF unless supervised by an experienced staff member Individuals Activity Individuals undergoing training Individuals with technical training engineering background Qualified electrician Supervisor wi...

Page 10: ...ersonnel on the use of the unit Detailed information is provided in the respective sections of this manual 1 10 Modifications to the MRF Do not make any modifications design modifications extensions to the MRF without the approval of the manufacturer Immediately replace any unit components which are not in perfect condition Only use original replacement parts When using non OEM components it canno...

Page 11: ...ntegrating the filter in the system make sure that the rated maximum operating system pressure does not exceed that of the MRF see rating plate The filter unit has to be set up in a horizontal position on a level surface The filter unit needs to be secured to the floor using floor anchors Make sure that there is sufficient space above the filter housing as this is needed for removing the filter el...

Page 12: ...s to level piping and the use of hydraulic oil grades Additional screwed fittings and pipe bends result in an increase in the pressure differential The difference in the elevation of the filter unit in relation to the oil level should be kept as small as possible The hoses have to be suitable for a minimum pressure of 0 5 bar and the maximum operating pressure of the filter housing Bottlenecks or ...

Page 13: ...oil or grease the flanges 5 Place the housing cover on the flanges of the tank 6 Apply the quick action fasteners 6 align them and close them tightening torque 27 Nm 7 Screw the safety screws 1 back in Filling and air bleeding 1 The dirt side oil drain plug 2 and the clean side oil drain screw plug 3 have to be closed tight 2 Open the air bleed valve 4 on the cover plate 3 Fill the filter slowly v...

Page 14: ...en the clogging indicator is triggered this shows that the filter element has to be replaced immediately When no clogging indicator has been fitted we recommend that elements be changed in specific intervals however at least once a year The frequency of changing the filter elements depends on the filter design and the conditions under which the filter is operated When filter elements are subjected...

Page 15: ...ew 1 with chain on the cover plate then loosen the quick action fastener 6 and lift up the housing cover 3 Pull out the filter elements examine the surface of the filter elements for residual dirt and large size particles This is often an indication of possible component damage 4 Remove the filter elements 5 Clean the housing and cover plate if necessary 6 Examine the filter for mechanical damage ...

Page 16: ... 4 Carefully place the filter element onto the element location spigot in the housing note the position of the handle on the element 5 Place the housing cover on the flange of the tank Apply the quick action fastener 6 align it and close it tightening torque of screw 27 Nm 6 Screw in the safety screw 1 with chain 7 Close the dirt side drain plug 2 8 Fill the filter side until oil exits at the air ...

Page 17: ...MRF 2 NU MultiRheo Filter 7 Replacement Parts Dimensions HYDAC Filtertechnik GmbH en Page 17 BeWa MRF2NU 3341025 en doc 2007 09 24 ...

Page 18: ...ogging indicator VL 2 GW 0 V 113 2 1285170 For other spare parts please inquire with us 8 Technical Specification MRF2 xx Quantity of filter elements Nx0xRxxx Pxx 7 Permissible pressure at element p See element data sheet Material of housing C steel Volume of housing in l 38 Operating pressure in bar max 10 Material of seals gaskets NBR Weight housing in kg ca 180 Fluid temperature in C 10 100 Amb...

Page 19: ...Notes ...

Page 20: ...hnology Division Industriegebiet Postfach 1251 66280 Sulzbach Saar 66273 Sulzbach Saar Germany Germany Phone 49 0 6897 509 01 Fax 49 0 6897 509 846 Technical Department Fax 49 0 6897 509 577 Sales Department Internet www hydac com E mail filtersysteme hydac com ...

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