Festo DSBG Series Repair Instructions
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Festo DSBG Series Repair Instructions

Standard cylinders to iso 15552
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Standard cylinders to ISO 15552
DSBG
Repair
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7DSBGa_en

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Summary of Contents for Festo DSBG Series

  • Page 1 Standard cylinders to ISO 15552 DSBG Repair instructions (en) 7DSBGa_en...
  • Page 2 Imprint Version: 7DSBGa_en 06.07.2020 Copyright: ©Festo SE & Co. KG Postfach D-73726 Esslingen Editorial team: Spare Part Documentation and Support Phone: +49 / 711 / 347-0 Fax: +49 / 711 / 347-2144 Email: service_international@festo.com Internet: www.festo.com Reproduction, distribution or sale of...
  • Page 3 These repair instructions have been prepared with care. Festo SE & Co. KG does not, however, accept liability for any errors in these repair instructions or their consequences. Likewise, no liability is accepted for direct or consequential damage resulting from incorrect use of the products.

  • Page 4: Table Of Contents

    4.5.3 Structure of the bearing cap 4.5.4 Removing the bearing and end caps 4.5.5 Replacing the piston components 4.5.6 Inserting the piston rod into the cylinder barrel 4.5.7 Repairing and attaching the bearing and end caps 4 / 49 Festo 7DSBGa_en...
  • Page 5 4.6.6 Inserting the piston rod into the cylinder barrel 4.6.7 Repairing and attaching the bearing and end caps Cleaning and Greasing Cleaning Greasing 5.2.1 Thin grease film 5.2.2 Grease reservoir Maintenance and care Tools Standard tools Special tools Liability Festo 7DSBGa_en 5 / 49...

  • Page 6: Important Information

    “Tools and repair accessories” information brochure Contains an overview of available assembly aids (e.g. lubricants, locking agent), special tools, schematic diagrams, fixtures, measuring devices, etc. The information can be found in the online spare parts catalogue on the Festo website (...

  • Page 7: Text Designations Used In These Repair Instructions

    In the event of damage caused by unauthorised manipulation, improper use or use of non-original spare parts, all warranty and liability claims against the manufacturer expire. Instead of carrying out the repair yourself, your local Festo sales office offers the option of having the repair carried out by Festo.

  • Page 8: Technical Requirements

    – The ISO cylinder is designed for industrial use. Standards and test values Standards and test values which products comply with and fulfil can be found in the “Technical data” sections of the enclosed documentation. 8 / 49 Festo 7DSBGa_en...

  • Page 9: General Product Description

    The precise features of a standard cylinder can be determined with the help of the rating plate on the cylinder. The type code is positioned directly beneath the Festo logo and describes the features of a standard cylinder separated by a hyphen (-).

  • Page 10: Repair-Relevant Features

    Hard scraper B1, B2, B3, ...LB2, ...LB3 DSBG-...-A6 / T1-A6 / T3-A6 / T4-A6 P, PPV, PPS, T, F, A, N3, ...V, ...Y, V, ...E, ...L, ...S, M..., B1, Metal scraper B2, B3, ...LB2, ...LB3 10 / 49 Festo 7DSBGa_en...
  • Page 11 Use the instructions in Chapter 4.4 on page 28 for repairs. Example 2: ISO standard cylinder DSBG-32-100-PPV-A-N3-T1-A6 The ISO standard cylinder includes the repair-relevant feature combination “T1-A6”. Use the instructions in Chapter 4.6 on page 41 for repairs. Festo 7DSBGa_en 11 / 49...

  • Page 12: Orientation Designations

    V = front H = rear Sizes and part numbers You will find the complete overview of features, accessories, type codes, technical data and dimensions in the product catalogue or on the Festo website ( www.festo.com). Size Module number DSBG-...-32- - 1634484 DSBG-...-40- -...

  • Page 13: Components List

    This component overview does not apply to ISO standard cylinders with the following features: T1 / T3 / T4 / A2 / A6. This diagram is intended to provide an overview of the individual components and an aid when ordering. For a more de- tailed assembly overview, refer to the online spare parts catalogue on the Festo website ( www.festo.com/spareparts). Festo 7DSBGa_en...
  • Page 14 Rear piston rod only DSBG-...-T-... (through piston rod) Cylinder barrel End cap only DSBG-... with single-ended piston rod Rear bearing cap only DSBG-...-T-... (through piston rod) Spacer bolt only DSBG-160 / 200 / 250 / 320-...-LB3-... 14 / 49 Festo 7DSBGa_en...

  • Page 15: Dsbg

    This component overview does not apply to ISO standard cylinders with feature combinations “T1-A6” or “T4-A6”. This diagram is intended to provide an overview of the individual components and an aid when ordering. For a more de- tailed assembly overview, refer to the online spare parts catalogue on the Festo website ( www.festo.com/spareparts). Festo 7DSBGa_en...
  • Page 16 Rear piston rod only DSBG-...-T-... (through piston rod) Cylinder barrel End cap only DSBG-... with single-ended piston rod Rear bearing cap only DSBG-...-T-... (through piston rod) Spacer bolt only DSBG-160 / 200 / 250 / 320-...-LB3-... 16 / 49 Festo 7DSBGa_en...
  • Page 17 This component overview does not apply to ISO standard cylinders with the feature combination: “T3-A6”. This diagram is intended to provide an overview of the individual components and an aid when ordering. For a more de- tailed assembly overview, refer to the online spare parts catalogue on the Festo website ( www.festo.com/spareparts). Festo 7DSBGa_en...
  • Page 18 DSBG-... with single-ended piston rod Rear piston rod only DSBG-...-T-... (through piston rod) Cylinder barrel End cap only DSBG-... with single-ended piston rod Rear bearing cap only DSBG-...-T-... (through piston rod) Spacer bolt only DSBG-...-LB3-... 18 / 49 Festo 7DSBGa_en...
  • Page 19 This components list also applies to ISO cylinder with the feature combinations “T1-A6”, “T3-A6” or “T4-A6”. This diagram is intended to provide an overview of the individual components and an aid when ordering. For a more de- tailed assembly overview, refer to the online spare parts catalogue on the Festo website ( www.festo.com/spareparts). Festo 7DSBGa_en...
  • Page 20 DSBG-... with single-ended piston rod Rear piston rod only DSBG-...-T-... (through piston rod) Cylinder barrel End cap only DSBG-... with single-ended piston rod Rear bearing cap only DSBG-...-T-... (through piston rod) Spacer bolt only DSBG-160 / 200-...-LB3-... 20 / 49 Festo 7DSBGa_en...

  • Page 21: Repair Steps

    Pressure in the ISO cylinder can dissipate suddenly on opening the cylinder. Risk of injuries due to the bearing cap unexpected moving away. • Before starting the repair, completely depressurise the ISO cylinder: Remove the non-return valves and tubing from the cylinder. Festo 7DSBGa_en 21 / 49...

  • Page 22: Visual Inspection

    The bearing and end caps of the various sizes and versions differ and can differ from the illustrations shown in the following. Before each repair, the parts lists of the online spare parts catalogue on the Festo website must be used to determine the precise type of bearing and end cap and must be taken into consideration in the repair (...

  • Page 23: Removing The Bearing And End Caps

    5. Clean the thread of the piston rod and the threaded coupling to remove Illustrated: DSBG-63-... screw locking agent. 6. Replace the components contained in the set of wearing parts. 7. Assemble the piston components on the piston rod in the correct order and alignment. Festo 7DSBGa_en 23 / 49...

  • Page 24: Inserting The Piston Rod Into The Cylinder Barrel

    7. Pull the piston rod back again until the piston sits fully in the cylinder barrel. This procedure ensures that the sealing lips of the two lip rings sit correctly in the cylinder barrel. 24 / 49 Festo 7DSBGa_en...

  • Page 25: Repairing And Attaching The Bearing And End Caps

    DSBG-...- (standard version) Note Note the mounting direction of the scraper ring: Individual sealing lip or labelling facing the outside. 13. Use a suitable thrust piece to insert the scraper ring into the bearing cap. Festo 7DSBGa_en 25 / 49...
  • Page 26 20. Guide the bearing cap over the mounting sleeve on the piston rod flush with the cylinder barrel. 21. Push the end cap so that it is flush with the cylinder barrel. 22. Turn the end cap and bearing cap so that they align with each other. 26 / 49 Festo 7DSBGa_en...
  • Page 27 30. Perform a functional test or start up the repaired ISO cylinder as described in the operating instructions. The operating instructions are enclosed with the ISO cylinder or can be called up on the Festo website ( www.festo.com/sp). Festo 7DSBGa_en 27 / 49...

  • Page 28: Requirements

    The bearing and end caps of the various sizes and versions differ and can differ from the illustrations shown in the following. Before each repair, the parts lists of the online spare parts catalogue on the Festo website must be used to determine the precise type of bearing and end cap and must be taken into consideration in the repair (...

  • Page 29: Removing The Bearing And End Caps

    5. Clean the thread of the piston rod and the threaded coupling to remove screw locking agent. Illustrated: DSBG-63-... 6. Replace the components contained in the set of wearing parts. 7. Assemble the piston components on the piston rod in the correct order and alignment. Festo 7DSBGa_en 29 / 49...

  • Page 30: Inserting The Piston Rod Into The Cylinder Barrel

    7. Pull the piston rod back again until the piston sits fully in the cylinder barrel. This procedure ensures that the sealing lips of the two lip rings sit correctly in the cylinder barrel. 30 / 49 Festo 7DSBGa_en...

  • Page 31: Repairing And Attaching The Bearing And End Caps

    Individual sealing lip or labelling facing the outside. 11. Use a suitable thrust piece to insert the scraper ring into the bearing cap. 12. Press together the circlip (e.g. with the help of pliers) and insert it into the bearing cap. Festo 7DSBGa_en 31 / 49...
  • Page 32 25. Push the tie rods, together with the collar nuts, through the holes in the bearing cap from the front. 26. Push the tie rods through the holes in the end cap. If necessary, turn the end cap into the correct position. 32 / 49 Festo 7DSBGa_en...
  • Page 33 29. Perform a functional test or start up the repaired ISO cylinder as described in the operating instructions. The operating instructions are enclosed with the ISO cylinder or can be called up on the Festo website ( www.festo.com/sp). Festo 7DSBGa_en 33 / 49...

  • Page 34: Requirements

    The bearing and end caps of the various sizes and versions differ and can differ from the illustrations shown in the following. Before each repair, the parts lists of the online spare parts catalogue on the Festo website must be used to determine the precise type of bearing and end cap and must be taken into consideration in the repair (...

  • Page 35: Removing The Bearing And End Caps

    9. Screw the threaded coupling onto the piston rod and tighten to the appro- priate tightening torque. Size Tightening torque DSBG-32 10 Nm DSBG-40 20 Nm DSBG-50 30 Nm DSBG-63 40 Nm DSBG-80 60 Nm DSBG-100 60 Nm DSBG-125 170 Nm Festo 7DSBGa_en 35 / 49...

  • Page 36: Inserting The Piston Rod Into The Cylinder Barrel

    3. Remove the insert sleeve 4 with scraper ring 5 and O-ring 6 from the bearing cap. 4. Separate the scraper ring and O-ring from the insert sleeve. 1 2 3 4 5 6 Illustrated: DSBG-32-...-T3 36 / 49 Festo 7DSBGa_en...
  • Page 37 7 Grease reservoir for bearing Fill 2/3 with grease 8 Grease reservoir for piston rod Fill 2/3 with grease Illustrated: DSBG-32-... Chapter 5.2.1 on page 47  Chapter 5.2.2 on page 47  Festo 7DSBGa_en 37 / 49...
  • Page 38 Size Tightening torque DSBG-32 4 Nm DSBG-40 8 Nm DSBG-50 / 63 11 Nm DSBG-80 / 100 15 Nm DSBG-125 • Press together the circlip (e.g. using pliers) and insert it into the bearing cap. 38 / 49 Festo 7DSBGa_en...
  • Page 39 41. Push the tie rods, together with the collar nuts, through the holes in the bearing cap from the front. 42. Push the tie rods through the holes in the end cap. If necessary, turn the end cap into the correct position. Festo 7DSBGa_en 39 / 49...
  • Page 40 45. Perform a functional test or start up the repaired ISO cylinder as described in the operating instructions. The operating instructions are enclosed with the ISO cylinder or can be called up on the Festo website ( www.festo.com/sp). 40 / 49 Festo 7DSBGa_en...
  • Page 41 The bearing and end caps of the various sizes and versions differ and can differ from the illustrations shown in the following. Before each repair, the parts lists of the online spare parts catalogue on the Festo website must be used to determine the precise type of bearing and end cap and must be taken into consideration in the repair (...
  • Page 42 9. Screw the threaded coupling onto the piston rod and tighten to the appro- priate tightening torque. Size Tightening torque DSBG-32 10 Nm DSBG-40 20 Nm DSBG-50 30 Nm DSBG-63 40 Nm DSBG-80 60 Nm DSBG-100 60 Nm DSBG-125 170 Nm DSBG-160 330 Nm DSBG-200 330 Nm 42 / 49 Festo 7DSBGa_en...

  • Page 43: Inserting The Piston Rod Into The Cylinder Barrel

    4. Remove the insert sleeve 4 with scraper ring 5 and O-ring 6 from the bearing cap. 5. Separate the scraper ring and O-ring from the insert sleeve. 1 2 3 4 5 6 Illustrated: DSBG-32-...-T3-A6 Festo 7DSBGa_en 43 / 49...
  • Page 44 21. Insert the O-ring into the outer slot +-of the insert sleeve. Note Note the mounting direction of the insert sleeve: Chamfer faces the bearing cap. 22. Insert the insert sleeve into the bearing cap. 44 / 49 Festo 7DSBGa_en...
  • Page 45 38. Push the tie rods, together with the collar nuts, through the holes in the bearing cap from the front. 39. Push the tie rods through the holes in the end cap. If necessary, turn the end cap into the correct position. Festo 7DSBGa_en 45 / 49...
  • Page 46 42. Perform a functional test or start up the repaired ISO cylinder as described in the operating instructions. The operating instructions are enclosed with the ISO cylinder or can be called up on the Festo website ( www.festo.com/sp). 46 / 49 Festo 7DSBGa_en...

  • Page 47: Cleaning And Greasing

    If other cleaning products are used, ensure that they do not corrode the seals of the ISO standard cylinder. If in doubt, check the resistance of the seals with the help of the information on the Festo website ( www.festo.com).

  • Page 48: Maintenance And Care

    It can be found in the online spare parts catalogue on the Festo internet site (  Tools and repair accessories.pdf Liability The General Terms and Conditions of Business (AGB) of Festo SE & Co. KG, which can be viewed on the Festo website ( www.festo.com), apply. 48 / 49 Festo 7DSBGa_en...
  • Page 49 Festo or third parties have vices, i.e. with the exception of electronic doc- protective rights to this electronic documen- Example: E 2003, Festo SE & Co. KG, umentation provided on the Internet/intranet, tation, which Festo provides both on portable...

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