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Performing Maintenance

OXiStop OXS

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MoWa OXS 3992763e en-us 2018-08-10.docx

2018-08-10

Completely emptying the hydraulic tank for transport, oil change, etc.

This chapter describes how to completely empty the hydraulic tank for
transport, oil change or maintenance via the OLF 5 bypass flow filtration unit
(2.1).

Empty the hydraulic tank along with the components without the degassing
unit as follows:

Summary of Contents for OXiStop OXS

Page 1: ...OXiStop OXS Installation and Maintenance Instructions English translation of original instructions Document no 3992763e ...

Page 2: ...ative Mr Günter Harge c o HYDAC International GmbH Industriegebiet 66280 Sulzbach Saar Phone 49 0 6897 509 1511 Fax 49 0 6897 509 1394 E mail guenter harge hydac com HYDAC FILTER SYSTEMS GMBH All rights reserved No part of this work may be reproduced in any form print photocopy or by other means or processed duplicated or distributed using electronic systems without the written consent of the publ...

Page 3: ...cations of personnel target group 13 Wear suitable clothing 14 Observe regulatory information 14 Transporting the unit 15 Transporting the unit with the crane 16 Storing the unit 17 Decoding the model code label 18 Checking the scope of delivery 20 Description of unit 21 Achievable degassing rate residual water content 22 Calculating differential operating volume ΔV 22 Available sizes 23 Unit comp...

Page 4: ...logging indicator on the breather filter 63 Replacing the breather filter element 64 Checking the visual clogging indicator of the fluid filter 65 Replace the filter element on the OLF 5 bypass flow filtration element 66 Replacing the protective screen on the OLF 5 bypass flow filtration unit optional 70 Clean replace the suction strainer on the OLF 5 bypass flow filtration unit 72 Bleeding the OL...

Page 5: ...Content OXiStop OXS en Page 5 108 MoWa OXS 3992763e en us 2018 08 10 docx 2018 08 10 Technical Data 101 Model code 103 Index 104 ...

Page 6: ...actual obligation our liability shall be limited to foreseeable damage Claims due to Product Liability shall remain unaffected Technical Support Contact our technical sales department if you have any questions on our product When contacting us please always include the model code serial no and part no of the product Fax 49 0 6897 509 9046 E mail filtersystems hydac com Modifications to the Product...

Page 7: ...ooking for The documentation has a table of contents at the beginning There I select the chapter I m looking for and the corresponding page number de HYDAC Filtertechnik GmbH BeWa 123456a de Seite x Produkt Kapitel 200x xx xx The documentation number with its index enables you to order another copy of the operating and maintenance instructions The index is incremented every time the manual is revi...

Page 8: ...other equipment Maintain the unit inspection intervals prescribed by law Document the results in an inspection certificate and keep it until the next inspection Hazard symbols These symbols are listed for all safety information and instructions in these operating instructions which indicate particular hazards to persons property or the environment Observe these instructions and act with particular...

Page 9: ...h a high level of risk which if not avoided will result lethal or serious injury WARNING WARNING The signal word indicates a hazardous situation with a medium level of risk which if not avoided can result lethal or serious injury CAUTION CAUTION The signal word indicates a hazardous situation with a low level of risk which if not avoided can result in minor or moderate injury NOTICE NOTICE The sig...

Page 10: ...icate the severity of the danger Warning instructions listed before an activity are laid out as follows HAZARD SYMBOL SIGNAL WORD Type and source of danger Consequence of the danger Measures to avert danger Observe regulatory information Observe the following regulatory information and guidelines Legal and local regulations for accident prevention Legal and local regulations for environmental prot...

Page 11: ...ted diaphragm prevents direct contact with the ambient air This effectively vacuum packs the fluid The OXS can therefore be used in very dusty and damp environments NOTICE Impermissible operating media The unit will be destroyed Use the unit only in conjunction with mineral oils compliant with DIN 51524 Proper or designated use of the product extends to the following Maintaining adherence to all t...

Page 12: ... not be considered intended use HYDAC Filter Systems GmbH will assume no liability for any damage resulting from such use The user alone shall assume any and all associated risk Improper use or use deviating from intended may result in hazards and or will damage the unit Examples of improper use Operation in potentially explosive atmospheres Operation with a non approved medium Operation under non...

Page 13: ...ccessories for transporting machinery and machine parts in addition to hydraulic units Operating personnel such persons have been instructed in power unit operation and are aware of potential hazards due to improper use Specialist personnel such persons with corresponding specialist training and several years work experience They are able to assess and perform the work assigned to them they are al...

Page 14: ...killed Wear close fitting clothing Do not wear any rings chains or any other jewelry Wear work safety shoes Wear gloves Observe the information relating to personal protection equipment in the safety data sheet of the operating medium Observe regulatory information Observe the following regulatory information and guidelines Legal and local regulations for accident prevention Legal and local regula...

Page 15: ... NOTICE Using components for pushing pulling lifting The unit will be damaged Never use the components to push or pull the unit Drain the unit and its components completely before transport and use suitable sealing plugs to seal all connections Secure the unit with lashing straps without stressing damaging the components ...

Page 16: ... accessories The unit components will be damaged destroyed Use only suitable lifting accessories to raise or lash the unit Take care to ensure that the lifting accessories do not cause any pressures to be brought to bear against the components on the unit Lift the unit only at the permitted attachment points The unit has the following permitted attachment points ...

Page 17: ...corresponding blind plugs Store the unit in accordance with the storage conditions listed in the chapter Technical Data If the storage period is expected to exceed six months then the following tasks are to be carried out Check all of the cables and seals prior to re commissioning for damage and replace damaged parts After a storage period of greater than 2 years replace all seals before re commis...

Page 18: ...pe labels on the unit and the components Item Description 1 Name plate OXS 2 Model code for details see page 103 3 Name plate for the OLF 5 bypass flow filtration unit 4 Name plate for the electric motor on the OLF 5 bypass flow filtration unit 5 Name plate for the heat exchanger s electric motor optional 6 Name plate for the heat exchanger optional 7 Type label for the return line filter optional...

Page 19: ...found on the name plate of the unit Row Description Part No Part numberPart number S N Serial number year of production Diff operating volume Differential Volume Weight Empty weight Viscosity range Permissible viscosity range Temp oil Permissible oil temperature range Temp amb Permitted ambient temperature range Tank volume Reservoir volume ...

Page 20: ...r any damage upon delivery Immediately report any damage in transit to the forwarding agent or the HYDAC department in charge The following items are supplied Qty Designation 1 OXS version as per order 1 Technical documentation comprising installation and maintenance instructions OXS this document instructions for the components declaration of incorporation ...

Page 21: ...OXS is a tank solution for hydraulic systems with an integrated hydraulically driven degassing and dewatering power unit and continuous separation of solids The OXS Lid series represents a tank lid solution for the customer specific design tanks and contain all of the components required for degassing and the separation of solids ...

Page 22: ...al required volume for the thermal expansion of the oil and any continuous oil leakage Double this volume for safety reasons Use the following formula to calculate the differential operating volume for the OXiStop ΔV Σ VShell 2 Σ ΔVCyl Σ ΔVHoses Σ ΔVTemp ΔV Difference volume Differential Volume Σ VShell Σ Shell volume Σ Casing volume of the hydraulic accumulators Σ ΔVHoses Σ Δ Volume hoses Σ Δ Vol...

Page 23: ...XS en Page 23 108 MoWa OXS 3992763e en us 2018 08 10 docx 2018 08 10 Available sizes The unit is available in the following sizes Installation size Differential operating volume ΔV OXS 30 30 liters OXS 45 45 liters OXS 70 70 liters ...

Page 24: ...Description of unit OXiStop OXS en Page 24 108 MoWa OXS 3992763e en us 2018 08 10 docx 2018 08 10 Unit components The unit has the following components ...

Page 25: ... Valve and connection block 4 7 Selector valve 5 93 Fluid level temperature sensor HNS electrical B 08 Filling port B 09 Draining connection B 12 Pressure measurement point pressure line OLF 5 B 15 Connection for visual tank fluid level indicator B 20 Connection for electronic temperature sensor ETS B 22 Breather fitting connection for rapid bleeding B 23 Connection for additional HNS 6 3 Sight gl...

Page 26: ...Description of unit OXiStop OXS en Page 26 108 MoWa OXS 3992763e en us 2018 08 10 docx 2018 08 10 Hydraulic diagram The unit has the following hydraulic diagram ...

Page 27: ...ure gauge visual 4 1 Valve and connection block 4 7 Selector valve 5 93 Fluid level temperature sensor HNS electrical B 08 Filling port B 09 Draining connection B 12 Pressure measurement point pressure line OLF 5 B 15 Connection for visual tank fluid level indicator optional B 20 Connection for electronic temperature sensor ETS optional B 22 Breather fitting connection for rapid bleeding B 23 Conn...

Page 28: ...Description of unit OXiStop OXS en Page 28 108 MoWa OXS 3992763e en us 2018 08 10 docx 2018 08 10 9 15 Heat exchanger optional T A T B T C Hydraulic connections ...

Page 29: ...f unit OXiStop OXS en Page 29 108 MoWa OXS 3992763e en us 2018 08 10 docx 2018 08 10 Dimensions The unit is produced in a variety of sizes the dimensions are given in the following drawing and the accompanying table ...

Page 30: ...D E OXS 30 625 5 524 630 645 5 160 OXS 45 625 5 524 750 645 5 160 OXS 70 625 5 524 990 645 5 200 The following dimensions are dependent on the size The size of return line filter NF is specified in the model code see page 103 Variable dimensions in mm F G H NF 160 205 160 G1 NF 240 264 220 G1 NF 280 445 400 G1 NF 330 271 170 SAE 1 3000 PSI NF 500 352 250 SAE 1 3000 PSI NF 750 702 600 SAE 1 3000 PS...

Page 31: ...ter 6 4 When the unit is started up degassing and dewatering unit 3 1 also removes the air remaining in the tank above the oil surface and raises the oil until it is underneath the tank cover Integrated diaphragm 6 1 rests on the oil like a protective skin in the tank preventing the oil from making direct contact with the environmental air regardless of the oil level The interior of the diaphragm ...

Page 32: ...ic accumulators in the overall hydraulic system Observe the permissible ambient temperature on the name plate of the unit Make sure there is sufficient ventilation around the area where the unit is set up Connect all electric components in accordance with the applicable operating instructions Hydraulic installation of the unit Connect the hydraulic tank to your hydraulic system at the correspondin...

Page 33: ... a properly trained certified electrician Compare the voltage and frequency specifications on the unit name plate with the existing network specifications Check the direction of rotation of the electric motor by switching it on briefly jog mode NOTICE Incorrect phase sequence rotation direction of the electric motor The pump will be destroyed In jog mode check the direction of rotation of the elec...

Page 34: ...ne by a properly trained certified electrician Compare the voltage and frequency specifications on the unit name plate with the existing network specifications Check the direction of rotation of the electric motor by switching it on briefly jog mode NOTICE Incorrect phase sequence rotation direction of the electric motor The pump will be destroyed In jog mode check the direction of rotation of the...

Page 35: ...isplays OXiStop OXS en Page 35 108 MoWa OXS 3992763e en us 2018 08 10 docx 2018 08 10 Monitoring the unit s sensors displays The hydraulic unit may be fitted with the following clogging indicators and sensors depending on the design ...

Page 36: ...I Visual clogging indicator at the OLF 5 bypass flow filtration unit 65 CS ContaminationSensor CS on the OLF 5 bypass flow filtration unit optional 43 AS AquaSensor AS on the OLF 5 bypass flow filtration unit optional 42 3 6 EDS electronic pressure sensor or vacuum gauge optional 37 5 93 Electronic level temperature sensor HNS 41 6 45 Visual clogging indicator on the breather filter 63 7 24 Visual...

Page 37: ...ion Use the electronic pressure sensor EDS or the optional visual vacuum gauge to monitor the unit function The vacuum gauge or the pressure sensor on the degassing and dewatering unit is used to monitor the function of the OXiStop and the hydraulic system Explanations regarding how to interpret the display measured values are given below ...

Page 38: ... curve while free air is to be found under the tank lid is depicted on the left hand side of the diagram In doing so the negative pressure in the degassing unit reaches a value of 0 5 bar 500 mbar absolute This kind of pressure curve is to be observed among other times during commissioning with larger sized air intakes or when there are leaks Once the free air has been removed from the tank a pres...

Page 39: ...content in lowest negative pressure in mbar abs Note that this graph is based on the total gas content in the oil Additionally the graph gives the estimated air content only for oils with low water contents 30 saturation at 40 C with constant utilization of OXS It is thus possible to monitor the function of the degassing unit regular cycles the total gas content in the oil the integrity of the dia...

Page 40: ...uid level indicator visual Min Max marking Visual fluid level indicator 7 24 is used to monitor and check the diaphragm The column of fluid in the fluid level indicator corresponds to the current position of the underside of the diaphragm Accordingly the higher the column rises the more the diaphragm is being folded up ...

Page 41: ... the diaphragm The sensor is located in the valve block and it is used to monitor the diaphragm stroke and thus the differential operating volume available in the tank If the oil level is too high or too low the sensor issues an alarm signal to switch off the unit The temperature of the oil is monitored via the integrated electric temperature sensor Details on connection and the terminal allocatio...

Page 42: ...sucked in fluid is continuously measured and shown directly on the sensor The water saturation indicates what percent of maximum possible water is dissolved in the oil A value of 0 would indicate water free oil and 100 would mean oil that is completely saturated with water Example illustration AS 3000 Details on connection and the terminal allocations and settings can be found in the instructions ...

Page 43: ...0 docx 2018 08 10 Connecting ContaminationSensor CS1000 optional The optional ContaminationSensor measures the level of solid contamination in the fluid Example illustration CS1x2x with display Details on connection and the terminal allocations and settings can be found in the instructions for the CS ...

Page 44: ... Fill and bleed the unit with oil as described in the chapter Filling the hydraulic tank with oil first filling oil change on page 50 3 Check all the settings of the sensors indicators see Checking setting the electronic pressure switch EDS see page 75 for details Check adjust electronic level temperature sensor HNS see page 77 for details 4 Switch on the unit s components Switching off the unit T...

Page 45: ... Diaphragm is leaking Ensure that the hydraulic system is free of leaks Check the OLF 5 bypass flow filtration unit The degassing cycle of the degassing unit is 3 minutes and or there is no pressure change at the degassing unit The float valve is defective Pressure relief valve is defective or incorrectly set Replace any defective valves immediately Degassing cycle is considerably shortened during...

Page 46: ...n Remedy The hydraulic system was not filled with sufficient oil Top up the oil see page 55 Too much oil on the inside on the diaphragm The hydraulic tank is overfilled The diaphragm is leaking Exchange the diaphragm See page 83 for details Further details can be found in the instructions for the components ...

Page 47: ... off the hydraulic system before performing any maintenance work and depressurize the system The safety of all persons coming into contact with the unit and the availability of the unit for use are dependent on regular servicing and maintenance All pictures and descriptions given in these instructions are examples These examples do not represent all of the different product variants ...

Page 48: ...X Check the screwed fittings to see that they have been properly resecured x Check the pressure sensor on the degassing unit and the fill level and temperature sensors X Replacing the breather filter 64 X Clean the suction strainer X Check the AquaSensor optional 82 Check the ContaminationSensor optional 82 Diaphragm Checking the diaphragm visual check X Replace the diaphragm For life cycle see ch...

Page 49: ... Return line filter optional Changing the filter element 80 X Electrical installation Check the cables and cable conduits for damage Visual inspection X Synchronize the electricity consumption of the motors by measuring with the nominal values on the name plates X Perform an electrical safety inspection in accordance with DIN VDE 0702 and or corresponding national regulation X After five years rep...

Page 50: ...ydraulic oil is always filled with clean filtered oil As an alternative fill the hydraulic tank with an external filling pump through the port B 08 or through a suitable port on the tank Ensure that only clean filtered oil is filled in during which the selector valve 4 7 is to be found at position a and the screw plug B22 is screwed out in accordance with the instruction contained in Step 1 Then f...

Page 51: ...Performing Maintenance OXiStop OXS en Page 51 108 MoWa OXS 3992763e en us 2018 08 10 docx 2018 08 10 ...

Page 52: ...filtration unit 2 1 on The oil is now pumped into the hydraulic tank Fill the hydraulic tank up to the marking on the fluid level indicator 7 24 6 Close the selector valve 4 7 by switching from position b to position a 7 Start the hydraulic system with a low fluid flow rate and a low system pressure This gives the air bubbles in the tank sufficient time to rise We recommend each 100 liters of tank...

Page 53: ...flow filtration unit 2 1 Insert the other end into the unpressurized external oil container Switch the filtration unit 2 1 on If oil escapes at the open hose end but no air or air bubbles unscrew the measurement hose and switch the OLF 5 bypass flow filtration unit 2 1 off 12 The free air trapped in the hydraulic tank will be suctioned off at the start with the aid of the degassing unit This will ...

Page 54: ...08 10 If the oil level reaches the mark top up with more oil for details see the chapter Refilling the hydraulic tank with oil on page 55 If the mark is reached drain oil off for details see chapter Partially emptying the hydraulic tank on page 57 14 The filling of the hydraulic tank is completed ...

Page 55: ...scribes how to refill the hydraulic tank via the OLF 5 bypass flow filtration unit 2 1 Note that initial filling comes before refilling and that no intake of air caused by the opening of screw plugs etc is desirable NOTICE Filling the unit via the breather filter The unit the breather filter will be damaged Fill the unit exclusively via the filling valve ...

Page 56: ...e OLF 5 bypass flow filtration unit 2 1 on The oil is now pumped into the hydraulic tank Fill the hydraulic tank up to the marking on the fluid level indicator 7 24 5 Close the selector valve 4 7 by switching from position b to position a 6 To bleed the OLF 5 bypass flow filtration unit 2 1 mount a 1602 measurement hose to the gauge port 2 7 on the cover of the OLF 5 bypass flow filtration unit 2 ...

Page 57: ...en Page 57 108 MoWa OXS 3992763e en us 2018 08 10 docx 2018 08 10 Partially emptying the hydraulic tank This chapter describes how to partly empty the hydraulic tank via the OLF 5 bypass flow filtration unit 2 1 e g with overfilling etc ...

Page 58: ...an unpressurized external oil container to collect the oil 2 Switch on the OLF 5 bypass flow filtration unit 2 1 on The oil is pumped out of the hydraulic tank by the valve block Dispose of the oil that has been drained in an environmentally friendly manner 3 Remove only enough oil for the oil level in the fluid level indicator 7 24 to be within the markings 4 Screw all screw plugs back in place 5...

Page 59: ...pletely emptying the hydraulic tank for transport oil change etc This chapter describes how to completely empty the hydraulic tank for transport oil change or maintenance via the OLF 5 bypass flow filtration unit 2 1 Empty the hydraulic tank along with the components without the degassing unit as follows ...

Page 60: ...zed external oil container to collect the oil 4 Switch on the OLF 5 bypass flow filtration unit 2 1 on The oil is pumped out of the hydraulic tank by the valve block Dispose of the oil that has been drained in an environmentally friendly manner 5 Once the oil has stopped emerging switch off the OLF 5 bypass flow filtration unit 2 1 and empty the hydraulic tank completely through the drain plug 7 5...

Page 61: ...ssing unit 3 1 holds 1 5 l oil Empty the degassing unit as follows 1 Unscrew the screw plug X for emptying completely 2 Collect the escaping fluid in a suitable container and dispose of it in an environmentally friendly manner 3 After the unit is empty screw the screw plug X back in again 4 The draining of the degassing unit is completed ...

Page 62: ...alve closed Ball valve open 1 Fully unscrew the screw plug B 22 on the valve block to bleed air from the hydraulic tank and apply the Connection kit for rapid bleeding for OXS at this position 2 Unscrew the screw plug Z1 on the connection kit completely and open the ball valve Z2 3 Attach an air pump to the free end of the ball valve G 1 2 4 Use the air pump to remove the free air until an oil col...

Page 63: ...18 08 10 Checking the clogging indicator on the breather filter The OLF 5 bypass flow filtration unit is equipped with an optical clogging indicator 6 45 for monitoring the degree of contamination Exchange the filter element when the clogging indicator displays 50 mbar See page 64 for details ...

Page 64: ...least once a year If the unit is in a very dusty damp environment the replacement intervals shorten accordingly Replace the filter element of the breather filter as follows 1 Unscrew cover 6 41 of the breather filter by hand in counterclockwise direction 2 Remove used filter element 6 42 and dispose of it in an environmentally correct manner 3 Insert new filter element 6 42 and screw on cover 6 41...

Page 65: ...uid filter The OLF 5 bypass flow filtration unit is equipped with an optical or electric clogging indicator for monitoring the degree of contamination Replace the filter element when the red marking becomes visible in the clogging indicator For details refer to chapter Replace the filter element on the OLF 5 bypass flow filtration element on page 66 ...

Page 66: ...the operating medium flows out 2 Put a suitable container in place to catch the operating medium to be found in the filter housing The volume is approx 3 liters Empty the filter housing through the drain plug Drain on the connector Without the proper drainage equipment the draining fluid can flow down to the electric motor 3 Loosen the tensioning clamp on the filter housing cover by completely uns...

Page 67: ...ter element according to local regulations and guidelines 7 Clean the removed parts and examine them for any possible damage Check the O ring on the filter bowl cover for damage Replace it if necessary Moisten the O rings on the filter bowl cover and on the new filter element with operating medium Never use grease or other media 8 Now place the filter bowl cover on the new filter element and lock ...

Page 68: ... a maximum of 5 Nm 12 Tighten the drain plug Drain on the connection part of the unit Switch on the OLF 5 bypass flow filtration unit on Bleed air from the filter housing via the measurement connection in the filter cover 13 If the bypass flow filtration unit has a ContaminationSensor on the OLF 5 bypass flow filtration unit replace the protective screen for details refer to chapter Replacing the ...

Page 69: ...ill the tank with the same volume that you removed to change the filter element For details refer to chapter Refilling the hydraulic tank with oil on page 55 16 Check the fluid filter for leaks while in operation Eliminate any leakages immediately 17 The filter element replacement on the OLF 5 bypass flow filtration unit is now complete ...

Page 70: ...ation without the protective screen The ContaminationSensor clogged blocked Never operate the unit without a protective strainer Replace the protective strainer regularly A protective strainer is installed upstream from the ContaminationSensor to protect it from blockage Exchange the protective screen regularly depending on the contamination level of the oil Item Designation CS 1 Protective strain...

Page 71: ...ed in chapter Replace the filter element on the OLF 5 bypass flow filtration element on page 66 3 Loosen the screw connection and remove protective strainer CS 1 between the two O rings CS 2 4 Dispose of protective strainer CS 1 in an environmentally friendly manner 5 Insert a new protective strainer CS 1 between the two O rings CS 2 6 Screw together the connector and fasten it tightly 7 The repla...

Page 72: ...n strainer missing operating without a suction strainer ContaminationSensor MOX pump blocked clogged Never operate the unit without a suction screen Clean the suction strainer regularly A suction strainer is installed upstream to prevent the pump from becoming blocked Clean or replace the suction strainer regularly Item Designation 2 41 O ring 2 42 Suction strainer 320 µm 2 5 Hose assembly ...

Page 73: ...chapter Replace the filter element on the OLF 5 bypass flow filtration element on page 66 3 Loosen hose assembly 2 5 and remove the suction strainer 2 42 4 Clean the suction strainer 2 42 by washing it out and then blowing it out with compressed air Wear gloves and safety goggles 5 Insert the clean new suction strainer 2 42 with the O ring 2 41 6 Screw together the connector and fasten it tightly ...

Page 74: ...the OLF 5 bypass flow filtration unit The filter element is not utilized completely Bleed air from the OLF 5 bypass flow filtration unit after each standstill filter element replacement protective screen replacement Bleed air from the fluid filter via measurement connection 2 7 until fluid begins to escape To do this attach a measurement hose 1602 to measurement connection 2 7 and place the other ...

Page 75: ...essure switch EDS has been replaced check the settings in accordance with the following specifications Check or configure the electronic pressure sensor EDS with the following alarm settings Alarm 1 Error MOX when a pressure higher than 1200 mbar is reached over a period of 99 99 s 1200 mbar 15 mbar Alarm 2 Free air in the tank when a pressure higher than 450 mbar is reached over a period of 25 s ...

Page 76: ...nic pressure sensor EDS with the following factory settings Display Possible values Setting SP Win SP SP Win SP ON OFF ON ON OFF ON 0 00 99 99 99 99 0 00 99 99 25 0 00 99 99 0 0 00 99 99 0 ACT Top S P 1 S P 2 OFF ACT 0 300 0 SLOW MEDI FAST Fast BAR PSI Mpa FREE Free 0 0 000 0 0 999 9899 0 0 899 9899 2500 MAMP VOLT MAMP YES NO Nein ...

Page 77: ... a float based sensor with an integrated fluid level temperature sensor The operating principle of the fill level sensor and range of the differential operating volume is shown in the following illustration and table Check the fluid level temperature sensor HNS The settings are dependent on the OXS size Details on setting the sensor can be found in the corresponding instructions ...

Page 78: ...Maximum oil level Hi 1 Minimum oil level Lo 1 D G LS 30 31 5 cm 7 6 cm 362 mm 5 mm 520 mm 45 42 5 cm 7 cm 472 mm 5 mm 630 mm 70 63 5 cm 7 cm 682 mm 5 mm 840 mm Item Designation D Height of the diaphragm cage G Thickness of the assembly plate LS Special length of HNS S Safety buffer X Diaphragm float swing path ...

Page 79: ...heat exchanger optional WARNING Hot surfaces Risk of burns Allow the heat exchanger to cool down before performing any work When a variety of oils are used a coating may form on the plates of the heat exchanger Check and clean the soiled plates regularly Details can be found in the corresponding instructions for the heat exchanger ...

Page 80: ...Changing the filter element of the return line filter optional This section describes how to change the filter element of the return line filter Size NF330 750 is used as an example Item Designation NF 1 Filter housing cover NF 2 Filter element NF 3 O ring NF 4 Air bleed plug Air bleed NF 5 Drain plug ...

Page 81: ...housing via drain plug NF 5 Collect the escaping oil in a suitable container 4 Remove used filter element NF 2 and dispose of it in an environmentally correct manner 5 Insert the new filter element NF 2 6 Check the O ring NF 3 for damage Replace it if necessary 7 Refill the oil that was removed 8 Screw the cover NF 1 onto the filter housing all the way finger tight and then turn it 90 backward 9 O...

Page 82: ...tablishment authorized by HYDAC For details see the instructions for the ContaminationSensor Testing the AquaSensor AS Check the AquaSensor annually with the calibration and adjustment set The Part no for ordering can be found in the spare parts list You can find further information in the calibration and adjustment set instruction manual Replace the AquaSensor if it exhibits great deviations ...

Page 83: ...en us 2018 08 10 docx 2018 08 10 Replacing the diaphragm The service life of the diaphragm is dependent on the fluid temperature for details see chapter Technical Data on page 101 Replace the diaphragm after the specified time to avoid malfunction Removing the diaphragm ...

Page 84: ...see the chapter Completely emptying the hydraulic tank for transport oil change etc on page 59 3 Remove the piping between valve block and diaphragm cover 6 2 Loosen all nuts 6 6 and washers 6 5 of the diaphragm cover 6 2 4 Take the diaphragm cover 6 2 off 5 Remove diaphragm 6 1 from the diaphragm cage and dispose of it in an environmentally correct manner 6 The removal of the diaphragm is now com...

Page 85: ...rface must be free of old sealant residue 2 Apply a thin even layer of HYLOMAR M sealant around sealing surface X The part no can be found in the spare parts list Observe the bleed time in accordance with the operating instructions Use exclusively the recommended sealant to seal the diaphragm This is the only way to ensure material compatibility 3 Insert the new diaphragm 6 1 through the opening i...

Page 86: ...ns and damage to the unit 5 Put the diaphragm cover 6 2 on 6 Attach washers 6 5 to all threaded bolts and screw the nuts 6 6 onto the threaded bolts by hand in a clockwise direction Always use new locknuts When locknuts are reused they will no longer provide a complete clamping effect 7 Tighten nuts 6 6 crosswise with a maximum torque of 8 Nm 8 Mount the pipe of the valve block and tighten it firm...

Page 87: ...nts before putting it out of service as described on page 57 Disconnect all electrical and hydraulic connections from and to the unit Store the unit in a clean dry non condensing space Disposing of the unit Dispose of the packaging material in an environmentally friendly manner After dismantling the unit and separating the various materials dispose of the unit in an environmentally friendly manner...

Page 88: ... please contact HYDAC FILTER SYSTEMS GMBH Justus von Liebig Straße Plant 20 66280 Sulzbach Saar Germany Phone 49 0 6897 509 1174 Fax 49 0 6897 509 9046 E mail filtersystems hydac com Our HYDAC Servicenter offers you these tasks within agreed upon time frames and at fixed prices HYDAC SERVICE GMBH Friedrichstaler Straße 15a Werk 13 66540 Neunkirchen Heinitz Germany Phone 49 0 681 509 883 Fax 49 0 6...

Page 89: ...63e en us 2018 08 10 docx 2018 08 10 Spare parts list Only use original spare parts and accessories to ensure safe and reliable operation of the unit When ordering spare parts always provide the complete designation type part no serial no year of construction ...

Page 90: ...Spare parts list OXiStop OXS en Page 90 108 MoWa OXS 3992763e en us 2018 08 10 docx 2018 08 10 ...

Page 91: ...Spare parts list OXiStop OXS en Page 91 108 MoWa OXS 3992763e en us 2018 08 10 docx 2018 08 10 ...

Page 92: ...Spare parts list OXiStop OXS en Page 92 108 MoWa OXS 3992763e en us 2018 08 10 docx 2018 08 10 ...

Page 93: ...coupling NBR 680107 3 1 MOX 1 N OXS NBR 3519092 3 7 Washer 6112446 3 8 Hex Nut ISO7040 6094509 5 11 Screw connection NBR 635490 5 12 Screw connection NBR 607968 5 15 Coupling nut 608399 5 2 Cutting ring 1 4571 6030713 5 3 Screw connection NBR 635486 5 35 Coupling nut 608397 5 4 Cutting ring 1 4571 6107260 5 5 Screw connection NBR 607722 5 6 Cutting ring 1 4571 6058071 5 7 Screw connection NBR 6081...

Page 94: ...70 Hex Screw 6047698 9 20 Screw connection 607724 9 22 Screw connection 608122 9 24 Hose assembly 4047901 9 28 SAE flange half 6028784 9 30 Washer 602787 9 32 Screw 626430 9 34 Washer 6112446 9 36 Hex Screw 6112528 9 38 Damper top 6152949 9 40 Damper bottom 6152950 9 42 Screw 6094383 9 44 Sealing plugs 607167 9 46 Screw connection 607723 9 48 Hose assembly 6153170 9 50 Screw connection 608121 9 52...

Page 95: ... suction tube 1x suction tube 1x change over valve 1x non return valve 1x seal 1x screw set Without HNS Replacement valve block set for OXS 30 4228500 Replacement valve block set for OXS 45 4228501 Replacement valve block set for OXS 70 4228502 S3 Replacement console set comprised of 1x console 4x buffer 1x screw set 4228808 S4 EDS with port set for MOX comprised of 1x EDS 1x connector set 4228180...

Page 96: ...e sensor HNS without default settings HNS 312P 8 for OXS 30 924538 HNS 312P 8 for OXS 45 924843 HNS 312P 8 for OXS 70 924844 6 2 Diaphragm cover suitable for BF7 breather filter Diaphragm cover for OXS 30 45 70 3864552 7 1 Tank Tank for OXS 30 4253261 Tank for OXS 45 4254381 Tank for OXS 70 4254503 8 10 return line filter NF 160 D E XX A 2 0 RV0 2 1282829 NF 240 D E XX A 2 0 RV0 2 1282831 NF 280 D...

Page 97: ...N5DM010 FKM 3102924 Filter element 20 µm N5DM020 FKM 3023508 AquaSensor AS AS 3008 NBR 922591 ContaminationSensor CS CS1320 FKM 3332066 Clogging indicator VA VM 2 BM 1 V FKM 303200 Protective screen CS 1 558230 O ring CS 2 FKM 635966 AquaSensor Calibration adjustment set 3122629 Breather filters BF7 Breather filter element 6 42 310948 return line filter NF Filter element 3 µm Filter element 5 µm F...

Page 98: ...iStop OXS en Page 98 108 MoWa OXS 3992763e en us 2018 08 10 docx 2018 08 10 Accessories We provide the following fluid level displays as accessories for the unit Not that the upper connector 7 25 needs to be glued in ...

Page 99: ... fluid level indicator 7 24 L 381 mm 1x bolt 7 241 2x sealing washer 7 242 1x bolt 7 25 4071801 Fill level indicator set for OXS 45 comprised of 1x fluid level indicator 7 24 L 500 mm 1x bolt 7 241 2x sealing washer 7 242 1x bolt 7 25 4073619 Fill level indicator set for OXS 70 comprised of 1x fluid level indicator 7 24 L 700 mm 1x bolt 7 241 2x sealing washer 7 242 1x bolt 7 25 4073620 ...

Page 100: ...XiStop OXS en Page 100 108 MoWa OXS 3992763e en us 2018 08 10 docx 2018 08 10 We offer the following connection kit as an accessory for the unit Part no Designation 4243219 Connection kit for rapid bleeding for OXS ...

Page 101: ...Typical gas removal rate 4 l h Permissible viscosity range 15 300 mm s 15 200 mm s with OLFCM Maximum fluid flow rate depending on return filter NFxxx 125 l min NF 160 125 l min NF 240 125 l min NF 280 450 l min NF 330 450 l min NF 500 450 l min NF 750 900 l min o return line filter Permitted fluid temperature range 10 80 C Electrical data Power supply frequency See name plate on the electric moto...

Page 102: ...uid temperature 6 years 60 C fluid temperature 2 years 60 C fluid temperature Permissible ambient temperature range 20 to 40 C Permitted storage temperature range 0 40 C Relative humidity 0 80 non condensing depending on the operating materials used and the degree of dynamic load the service life of the diaphragms can become considerably shortened valid for an installation height 1000 m above sea ...

Page 103: ...ealing material diaphragm material 1 Sealing material NBR diaphragm material PUR return line filter 1 NF 160 2 NF 240 3 NF 280 4 NF 330 5 NF 500 6 NF 750 Z No return line filter installed Plate heat exchanger 1 20 plates vane pump 2 40 plates vane pump Z No plate heat exchanger installed Negative pressure monitoring 1 Pressure gauge visual 2 Pressure sensor electric Fluid level temperature monitor...

Page 104: ... drain plug 60 66 68 81 Drain plug 80 draining 61 66 E Electrical data 101 Empty weight 19 emptying 53 57 58 59 60 61 84 Error 45 75 F filling 44 50 52 53 54 55 86 Filter 12 80 97 Filter element 80 97 Filter housing 80 Filter housing cover 80 filtration 18 25 27 31 33 36 44 45 48 50 52 53 55 56 57 58 59 60 63 65 66 68 69 70 71 72 73 74 97 H Hazard symbol 8 10 Hydraulic connection 25 28 Hydraulic d...

Page 105: ...81 96 97 101 103 S SAE 30 94 Sealing plug 94 select 7 Service 88 setting 32 44 75 77 Signal word 9 10 signal words 10 Size 80 Spare part 89 Spare parts 89 Spare parts list 89 Specialist personnel 13 Suction screen 27 48 93 T Time 38 Transport 13 transporting 13 Troubleshooting 13 45 Type label 18 V Viscosity 19 W Weight 19 ...

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Page 108: ...riegebiet Postfach 1251 66280 Sulzbach Saar 66273 Sulzbach Saar Germany Germany Tel 49 0 6897 509 01 Central Fax 49 0 6897 509 9046 Technical Department Fax 49 0 6897 509 577 Sales Internet www hydac com E mail filtersystems hydac com ...

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