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HYDAC International OLF-5-S Series Installation Instructions Manual

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Installation instructions
3433222e / 2025-01

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Summary of Contents for HYDAC International OLF-5-S Series

  • Page 1 OffLine Filter OLF-5-S-… OLF-5/4-S-… OLF-5/15-S-… OLF-10/15-S-… Installation instructions 3433222e / 2025-01...
  • Page 2 Translation / original language: German © 2025 HYDAC Filter Systems GmbH. All rights reserved. ® All product names used may be trademarks or registered trademarks of HYDAC or the particular owner. This manual was prepared to the best of our knowledge. Nevertheless, and despite the greatest care, it cannot be ruled out that mistakes could have crept in.

  • Page 3: Table Of Contents

    CONTENTS Contents General ........................... Target group of the manual ................Illustrations in the manual................... 1.2.1 Depiction of warning signs..............1.2.2 Representation of requirements ............1.2.3 Representation of procedural instructions ..........1.2.4 Representation of intermediate results/results ........1.2.5 Supplementary symbols ............... Warranty ......................
  • Page 4 CONTENTS Hydraulic connection ..................5.3.1 Calculating the drop off load..............5.3.2 Connecting inlet IN ................5.3.3 Connecting outlet OUT ................. Making the electrical connections............... 5.4.1 Connecting electric motor, 1-phase............5.4.2 Connecting electric motor, 3-phase............Connecting electrical clogging indicator ............. Taking the filter unit into operation ..............Checking installation...................

  • Page 5: General

    1. GENERAL General 54043196243574411 Before you use this product for the first time, read this manual at least up to the chapter "Operation". If you would like to carry out maintenance or troubleshooting, you can find the procedure in the respective chapters. The use and the handling of the product as well as its use are not self-explanatory and are described in detail in this manual.
  • Page 6 1. GENERAL Warnings visually highlighted in boxes Warnings visually highlighted in boxes provide the following information in connection with a hazard: DANGER High electrical voltages Life-threatening injury or death! Disconnect the system from the power supply and secure it against being switched back on again. Warning level Type and source of the hazard How high is the risk...

  • Page 7: Representation Of Requirements

    1. GENERAL Warning level What this means for you Warns of dangers for people with a high risk potential. DANGER Failure to observe this warning is highly likely to result in serious injury or even death. Warns of dangers for people with a medium risk potential. WARNING Failure to observe this warning may result in serious injury or even death.

  • Page 8: Representation Of Intermediate Results/Results

    1. GENERAL 1.2.4 Representation of intermediate results/results 9007199396760075 In the case of some activities, it is necessary to carry out work steps with intermediate results and end results. Intermediate results are the consequence of activities; they are marked with an indented arrow.

  • Page 9: Safety Regulations

    2. SAFETY REGULATIONS Safety regulations 18014398681437195 The product is designed as safe. In spite of that, there is danger in some actions that can only be avoided by using the right procedures. These correct procedures and points, which must be followed, are described in this manual.
  • Page 10 2. SAFETY REGULATIONS Exposed electrical components Danger due to operating pressure Signs used for the required specialist personnel These symbols show the required training/knowledge for installation work and/or main- tenance work. Specialist personnel – Electrical These persons have specific specialist training and several years of work experience.

  • Page 11: Danger Notifications

    2. SAFETY REGULATIONS Danger notifications 18014398830679947 The following dangers can occur in the various life cycles of the product: Life cycle – in all life cycles. The following risks could arise during all life cycles: Environmental tip Siphoning effect Reservoir overflowing/leaking = oil spill Remove the ends of the hoses from the reservoir after operation or shut the shut-off device in the suction line.

  • Page 12: Observing Regulatory Information

    2. SAFETY REGULATIONS Observing regulatory information 9007199302626571 Observe the following regulatory information and directives: ● Legal and local regulations for accident prevention ● Legal and local regulations for environmental protection and environmental require- ments ● Country-specific regulations, organisation-specific regulations ● Occupational safety rules Observing environmental precautions 63050395051134859...

  • Page 13: Product And Technical Specifications

    3. PRODUCT AND TECHNICAL SPECIFICATIONS Product and technical specifications 18014398572780299 The filter units of the OLF-5 and OLF-10 series are used for fine filtration of hydraulic oils in the bypass flow. The series includes numerous versions, e.g. with or without motor-pump unit, element removal upwards or downwards, tank installation variant, optionally with integrated Condition Monitoring to determine fluid purity and water content, etc.

  • Page 14: Improper Use Or Use Deviating From Intended Use

    3. PRODUCT AND TECHNICAL SPECIFICATIONS Improper use or use deviating from intended use 9007199321210123 DANGER Danger due to unintended use Bodily injury and damage to property Never operate the filter unit in potentially explosive atmospheres. Use the filter unit only with the permitted operating media. Any other use or extended use shall not be considered intended use.

  • Page 15: Decoding The Type Label

    3. PRODUCT AND TECHNICAL SPECIFICATIONS Decoding the type label 18014398572605323 Details for identifying the product are found on the name plates on the product as well as their components. Always mention the part number and the serial number when contacting HYDAC. Fig. 2: Decoding the model code Item Description...

  • Page 16: Model Code

    3. PRODUCT AND TECHNICAL SPECIFICATIONS 3.4.1 Model code 18014398574995467 The filter unit/filter housing is defined by the following model code: OLF - 5/xx - S - xxx-x - NxXMxxx - xx Basic type OLF = OffLine Filter Size / flow rate = 5 l/min = 5 l/min 5/15 = 15 l/min...
  • Page 17 3. PRODUCT AND TECHNICAL SPECIFICATIONS Filter elements N5xMxxx Type code Description OLF-5 / OLF-5/4 OLF-5/15 5 l/min 4 l/min 15 l/min N5DM002 Filter element 2 µm, DIMICRON N5DM005 Filter element 5 µm, DIMICRON N5DM010 Filter element 10 µm, DIMICRON N5DM020 Filter element 20 µm, DIMICRON N5AM002 Filter element 2 µm, AQUAMICRON N5AM010 Filter element 10 µm,...
  • Page 18 3. PRODUCT AND TECHNICAL SPECIFICATIONS Type code Description OLF-5 OLF-5/4 OLF-5/15 5 l/min 4 l/min 15 l/min M160B020 Filter cartridge (Spin-On), Filter fineness , 20 µm (absolute) M180B003 Filter cartridge (Spin-On), Filter fineness , 3 µm (absolute) M180B005 Filter cartridge (Spin-On), Filter fineness , 5 µm (absolute) M180B010 Filter cartridge (Spin-On), Filter fineness , 10 µm (absolute)

  • Page 19: Technical Data

    3. PRODUCT AND TECHNICAL SPECIFICATIONS Technical data 5339254155 If you are aware of the technical data of the product, you will be able to use it optimally. This chapter provides the technical data of the product: The filter unit has the following technical data: Permitted operating media Mineral oils or refined products based on mineral oil.

  • Page 20: Dimensions/Hydraulic Diagram

    3. PRODUCT AND TECHNICAL SPECIFICATIONS Protection class according to IP54 IEC 60529 Empty weight See type label Filtration rating ß(2) > 1000 (∆p 2.5 bar) with N5DMxxx or N10DMxxx filter element Voltage supply / power consumption See the type label on the electric motor Emission sound pressure level L < 70 dB(A) Design service life...

  • Page 21: Drawing Olf-5-S

    3. PRODUCT AND TECHNICAL SPECIFICATIONS 3.6.1 Drawing OLF-5-S-… 9007199320216971 The filtration unit has the following dimensions: Fig. 4: OLF-5-S-… - 1204891 All dimensions in mm. 21 / 68 3433222e / 2025-01...
  • Page 22 3. PRODUCT AND TECHNICAL SPECIFICATIONS Item Designation Fluid inlet Fluid outlet DRAIN Emptying / fluid drain Clogging indicator Required space for removing the filter element Space required for cooling the electric motor 22 / 68 3433222e / 2025-01...

  • Page 23: 3.6.1.1 Components Olf-5-S

    3. PRODUCT AND TECHNICAL SPECIFICATIONS 3.6.1.1 Components OLF-5-S-… 67470091 The filter unit has the following components: Fig. 5: Components OLF-5-S… Item Designation Fluid inlet Fluid outlet DRAIN Emptying / fluid drain Clogging indicator Electric motor Fan cover Terminal box Mounting foot / electric motor foot Filter bowl Clamping clip 23 / 68...

  • Page 24: Drawing Olf-5/15-S

    3. PRODUCT AND TECHNICAL SPECIFICATIONS 3.6.2 Drawing OLF-5/15-S-… 9007199320220811 The filtration unit has the following dimensions: Fig. 6: Drawing OLF-5-15-S-xxx-BM… All dimensions in mm. 24 / 68 3433222e / 2025-01...
  • Page 25 3. PRODUCT AND TECHNICAL SPECIFICATIONS Item Designation Fluid inlet Fluid outlet DRAIN Emptying / fluid drain AIR BLEED Aerator/de-aerator Clogging indicator Required space for removing the filter element Space required for cooling the electric motor 25 / 68 3433222e / 2025-01...

  • Page 26: Components Olf-5/15-S

    3. PRODUCT AND TECHNICAL SPECIFICATIONS 3.6.2.1 Components OLF-5/15-S…E 9007199322252555 The filter unit has the following components: Fig. 7: Components OLF-5/15-S…BM Item Designation Fluid inlet Fluid outlet DRAIN Emptying / fluid drain Clogging indicator Electric motor Fan cover Terminal box Mounting foot / electric motor foot Filter bowl Clamping clip 26 / 68...

  • Page 27: Drawing Olf-5/4-Sp

    3. PRODUCT AND TECHNICAL SPECIFICATIONS 3.6.3 Drawing OLF-5/4-SP… 9007199320225035 The filtration unit has the following dimensions: Fig. 8: Drawing OLF-5/4-SP All dimensions in mm. 27 / 68 3433222e / 2025-01...
  • Page 28 3. PRODUCT AND TECHNICAL SPECIFICATIONS Item Designation Fluid inlet Fluid outlet DRAIN Emptying / fluid drain Clogging indicator Required space for removing the filter element Space required for cooling the electric motor 28 / 68 3433222e / 2025-01...

  • Page 29: 3.6.3.1 Components Olf-5/4-Sp

    3. PRODUCT AND TECHNICAL SPECIFICATIONS 3.6.3.1 Components OLF-5/4-SP… 9007199322256395 The filter unit has the following components: Fig. 9: Components OLF-5/4-SP… Item Designation Fluid inlet Fluid outlet Clogging indicator Electric motor Fan cover Terminal box Mounting foot / electric motor foot Filter cartridge 29 / 68 3433222e / 2025-01...

  • Page 30: Drawing Olf-5/4-S

    3. PRODUCT AND TECHNICAL SPECIFICATIONS 3.6.4 Drawing OLF-5/4-S… 9007199320226955 Fig. 10: Unit dimensions OLF-5/4-S-... All unit dimensions in mm. Item Designation Fluid inlet Fluid outlet DRAIN Emptying / fluid drain Clogging indicator Required space for removing the filter element Space required for cooling the electric motor 30 / 68 3433222e / 2025-01...

  • Page 31: Components Olf-5/4-S

    3. PRODUCT AND TECHNICAL SPECIFICATIONS 3.6.4.1 Components OLF-5/4-S…BM 9007199322258315 The filter unit has the following components: Fig. 11: Components OLF-5/4-S…BM Item Designation Fluid inlet Fluid outlet DRAIN Emptying / fluid drain Clogging indicator Electric motor Fan cover Terminal box Mounting foot / electric motor foot Filter bowl Clamping clip 31 / 68...

  • Page 32: Transportation/Storage

    4. TRANSPORTATION/STORAGE Transportation/storage 9007199317989771 Empty the filter unit/filter housing fully before transporting it or putting it into storage. Remove the used filter element/filter cartridge and clean the inside of the filter housing. NOTICE Do not pick up the product by the clogging indicator The clogging indicator is damaged/destroyed.

  • Page 33: Mounting/Installing

    5. MOUNTING/INSTALLING Mounting/installing 36028797082409995 An optimally assembled and installed product ensures a safe and continuous operation. Below, you will find information on how to install and connect the filter unit hydraulically and electrically. Only install the filter unit vertically. Fasten the filter unit to the mounting foot or the foot on the electric motor using four suitable screws, depending on the version.

  • Page 34: Avoiding Siphoning

    5. MOUNTING/INSTALLING Avoiding siphoning 72057594101524491 If there is a height difference ΔH between the suction side and pressure side container/system, the low lying line can develop a suction effect and trigger the siphoning effect between the communicating containers/ systems. This siphoning effect also occurs when fluid is pumped in a pre-pressurised container.

  • Page 35: Measuring Dynamic Pressure Or Differential Pressure

    5. MOUNTING/INSTALLING Measuring dynamic pressure or differential pressure 54043195669075979 If pressure is measured in a hydraulic system, the type of measurement such as dynamic pressure or differential pressure as well as the measurement point MP is critical, as shown in the following figure. Fig. 15: Measuring dynamic pressure or differential pressure Measurement point ∑∆p...

  • Page 36: Hydraulic Connection

    5. MOUNTING/INSTALLING Hydraulic connection 9007199768368523 Observe the following instructions for hydraulic installation. 5.3.1 Calculating the drop off load 9007199791437451 Install the unit securely in a hydraulic system, take the drop-off load into account with the piping or hose system. You will find the respective formula to calculate the drop off load.

  • Page 37: Connecting Inlet In

    5. MOUNTING/INSTALLING 5.3.2 Connecting inlet IN 9007199318417419 Use a suitable screwed fitting for the connection. Please note when connecting the filter unit: 1. Connect the filter unit to the hydraulic system with a suitable port. 2. For the suction port, ensure that the feed-line is suitable for a negative pressure of ≥ -0.5 bar and that the permitted pressure is not exceeded.

  • Page 38: Connecting Electric Motor, 1-Phase

    5. MOUNTING/INSTALLING DANGER Electric voltage warning Danger of fatal injury In case of any damage to the insulation, switch off the supply voltage immediately and arrange for repairs to be carried out. Before carrying out any work on the electrical system and before any mainte- nance, cleaning or repair work, disconnect the feed line or pull out the power plug.

  • Page 39: Connecting Electrical Clogging Indicator

    5. MOUNTING/INSTALLING Connecting electrical clogging indicator 90071992611092107 If the filter housing / filter unit is equipped with an electrical clogging indicator, connect it to your control centre according to the switching logic. For details, see ▶Sec. 9.3 "Clogging indicators – characteristics". Taking the filter unit into operation 18014398576840459 The filter unit is supplied without an inserted filter element.

  • Page 40: Operation

    6. OPERATION Operation 36028797085490955 To monitor the service life of the filter element / filter cartridge during operation, the filter unit / filter housing can be equipped with a clogging indicator (back pressure / differ- ential pressure, optical or electrical). Check the visual clogging indicator daily, for details see ▶Sec. 6.1 "Observing the optical clogging indicator (optional)"...

  • Page 41: Rectifying Malfunctions

    7. RECTIFYING MALFUNCTIONS Rectifying malfunctions 18014398574406539 In order to get quick and immediate assistance in the case of errors, you will find the most common faults with their causes, to be rectified by qualified personnel. The following errors may occur during handling or operation of the filter unit / filter housing: Fault Cause(s)

  • Page 42: Performing Maintenance

    8. PERFORMING MAINTENANCE Performing maintenance 18014398573574539 This chapter contains the description of the required maintenance activities and the qualifications of the staff needed to carry out these tasks. WARNING The hydraulic system is under operating pressure Danger of bodily injury The hydraulic system must be depressurised before performing any work on it.

  • Page 43: Resetting Visual Clogging Indicator Vm X Bm.x

    8. PERFORMING MAINTENANCE Resetting visual clogging indicator VM x BM.x 18014398573730187 The visual clogging indicator VM x BM.x has a manual reset. Reset the visual clogging indicator manually after each filter element change, as shown below. ü The filter element has been replaced. 1.
  • Page 44 8. PERFORMING MAINTENANCE 2. Release the clamping clip (a) on the filter housing and remove it down- wards (b). Use an allen screw (  = 5 mm) (1). 3. Pull the filter bowl and filter element downwards. 4. Remove (a) the filter element by turning slightly (b) so it comes out of the filter bowl.
  • Page 45 8. PERFORMING MAINTENANCE 5. Clean the inside of the filter bowl to remove dirt and deposits. 6. Check the O-ring on the filter bowl for damage. Replace it if necessary. Slightly wet the O-rings on the filter bowl with the operating medium. 7.
  • Page 46 8. PERFORMING MAINTENANCE 8. Press the new filter element into the holder of the filter bowl while turning it slightly. 9. Slide the filter bowl together with the filter element upwards into the holder on the filter head. 10. Push the clamping clip (a) from the bottom upwards over the filter bowl over the bead on the filter bowl/filter head.

  • Page 47: Changing Filter Cartridge - Spin-On

    8. PERFORMING MAINTENANCE 11. Check the drain screw on the filter bowl for tightness using an allen screw  = 6 mm). 12. Put the filter housing / unit into oper- ation and check for leaks. O The replacement of the filter element is now complete.
  • Page 48 8. PERFORMING MAINTENANCE Fig. 19: Spin-On filter cartridge 6. Remove the old sealing ring (1) to the filter element in the connection head for the filter cartridge 0160 MA 0xx BN and replace it with a new sealing ring. The sealing ring (2) is already mounted on the filter cartridge 0160 MG 010 P. 7.

  • Page 49: Changing Filter Element - Toploader

    8. PERFORMING MAINTENANCE Changing filter element – Toploader 27021597829115275 In this chapter, you will find the procedure for changing the filter element. 1x Suitable container for collecting the operating fluid from the filter housing. 1x Allen key  = 6 mm 1x Allen key  = 10 mm ü...
  • Page 50 AIR BLEED 8. PERFORMING MAINTENANCE 4. Carefully pull the filter housing cover upwards and out. Turn it clockwise slightly so that the filter element remains locked in place on the filter housing cover. AIR BLEED 5. Loosen the dirt collecting basket by turning it ≈...
  • Page 51 8. PERFORMING MAINTENANCE 7. Clean the inside of the filter housing to remove dirt and deposits. 8. Check the O-ring on the filter bowl for damage. Replace it if necessary. Slightly wet the O-rings on the filter bowl cover and on the filter element with the operating medium.
  • Page 52 AIR BLEED 8. PERFORMING MAINTENANCE 10. Attach the dirt collection bowl to the bottom of the filter element by turning it ≈ 30° counterclockwise. ≈ 30° AIR BLEED 11. Place the filter element with filter bowl cover and dirt collection container in the filter housing.

  • Page 53: Replacing Clamping Clip - Only For T Version

    8. PERFORMING MAINTENANCE 15. Tighten the drain screw DRAIN DRAIN  = 10 mm. 16. Switch on the filter unit/hydraulic system and bleed the filter housing via the bleed screw AIR BLEED  = 6 mm in the filter bowl cover. AIR BLEED 17. Put the unit into operation and check the filter unit/filter unit for leaks.

  • Page 54: Annex

    9. ANNEX Annex 18014399022648971 This Annex contains additional information on the product. Finding spare parts/accessories 18014398574408843 Use only original spare parts for a long and defect-free life cycle of the product. When ordering spare parts and accessories make sure to always indicate the exact model code and the serial number.

  • Page 55: Spare Part Drawing Olf-5

    9. ANNEX 9.1.1 Spare part drawing OLF-5… 9007199320206859 The following drawing shows the individual parts of the OLF-5…: Fig. 20: Spare parts OLF-5-S-... 1204630 55 / 68 3433222e / 2025-01...

  • Page 56: Spare Part Drawing Olf-5/4

    9. ANNEX 9.1.2 Spare part drawing OLF-5/4… 9007199320208779 The following drawing shows the individual parts of the OLF-5/4…: Fig. 21: Spare parts OLF-5/4 - 3041370 56 / 68 3433222e / 2025-01...

  • Page 57: Spare Part Drawing Olf-5/Xx-T

    9. ANNEX 9.1.3 Spare part drawing OLF-5/xx-T-... Toploader 9007199320210699 The following drawing shows the individual parts of the OLF-5/xx-T-…: Fig. 22: Spare parts OLF-5/xx-T - 3244069 57 / 68 3433222e / 2025-01...

  • Page 58: Accessories - Tank Connection Kit Olf-5-Tak

    9. ANNEX 9.1.4 Accessories – tank connection kit OLF-5-TAK 9007199320230795 The tank connection kit TAK is used for quick and easy retrofitting of an OLF filter unit to existing hydraulic systems. This can be inserted in all hydraulic systems with a breather filter in accordance with the connection diagram DIN 24557/T2.

  • Page 59: Contacting Customer Service

    9. ANNEX Contacting Customer Service 72057594095185931 Contact details such as the telephone numbers, e-mail and mailing addresses for the Hotline, product support, Customer Service, branch offices, service partners for mainte- nance, repair and spare parts can be found on our homepage www.hydac.com. HYDAC SYSTEMS &...
  • Page 60 9. ANNEX Display type Visual display with green-red field, auto- matic return Weight 55 g Response pressure or indication range VM 2 B.x = 2 bar -10% VM 3 B.x = 3 bar -10% VM 5 B.x = 5 bar -10% VM 8 B.x = 8 bar ±10% Permitted operating pressure ≤ 210 bar Permitted temperature range -30 … +100 °C Connector thread G ½ Required installation space According to HN 28-22 Maximum tightening torque...

  • Page 61: Differential Pressure Indicator, Visual - Vm X Bm.x

    9. ANNEX 9.3.2 Differential pressure indicator, visual – VM x BM.x 36028797208484619 The visual differential pressure indicator reacts to the increasing pressure difference as the contamination level of the filter element increases. Fig. 25: Differential pressure indicator, visual VM x BM.x Display type Visual display with green-red field, manual return Weight 55 g...

  • Page 62: Differential Pressure Indicator, Electrical - Vm X C.x

    9. ANNEX 9.3.3 Differential pressure indicator, electrical – VM x C.x 36028797208611723 The electrical differential pressure indicator reacts to the increasing pressure difference as the contamination level of the filter element increases. Fig. 26: Differential pressure indicator, electrical VM x C.x Display type Electrical switch Weight 120 g Response pressure or indication range...

  • Page 63: Differential Pressure Indicator, Electrical - Vm X D.x /-L-Xx

    9. ANNEX 9.3.4 Differential pressure indicator, electrical – VM x D.x /-L-xx 36028797208620427 The electrical differential pressure indicator reacts to the increasing pressure difference as the contamination level of the filter element increases. Fig. 27: Differential pressure indicator, electrical VM x D.x /-Lxx Display type Visual display and electrical switch Weight 150 g Response pressure or indication range...

  • Page 64: Glossary

    GLOSSARY Glossary AQUAMICRON Spin-on The filter elements of the AQUAMICRON series are characterised by their high contamination retention capacity of the glass fibre layers used and a high water retention capacity. The glass fibre structure and the pleated design of the elements make a high flow rate possible and, through that, high dedusting speeds due to the high circulation rate and a...

  • Page 65: Index

    INDEX Index Checking direction of rotation Installation Electric motor  38 Connection IN  37 Pump  38  37 Clogging indicator Differential pressure indicator  60, 61, 62, 63 Observing the  40 Making the electrical connections Reset  43 Checking the supply voltage  37 Customer service  59 Installing motor protection switch  37...
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  • Page 68 HYDAC Filter Systems GmbH Industriestraße 66280 Sulzbach/Saar Germany Tel. +49 6897 509-01 filtersystems@hydac.com www.hydac.com Further addresses: www.hydac.com/en/contacts...

This manual is also suitable for:

Olf-5/4-s seriesOlf-5/15-s seriesOlf-10/15-s series

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