FIBRO 2486.22 Series Maintenance Instructions Manual

Gas spring ds

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WE LOVE TECHNOLOGY
MAINTENANCE INSTRUCTIONS
GAS SPRING DS
2486.22.
Maintenance instructions Gas spring DS
MEMBER OF THE LAEPPLE GROUP

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Summary of Contents for FIBRO 2486.22 Series

  • Page 1 WE LOVE TECHNOLOGY MAINTENANCE INSTRUCTIONS GAS SPRING DS 2486.22. Maintenance instructions Gas spring DS MEMBER OF THE LAEPPLE GROUP...
  • Page 2 Internet: www.fibro.de © All rights to this document are subject to copyright of the author. Without the prior written permission of FIBRO GMBH, this document must not be copied or reproduced, either in full or in part. The instructions are intended only for the operator of the described only...
  • Page 3: Table Of Contents

    Contents Safety ..............4 Safety information .
  • Page 4: Safety

    The warnings in this document are therefore not all encompassing. If a work material, an act, a work method or work technique is used which has not been specif- ically suggested by FIBRO GMBH, then the user has to ensure the safety for himself and other persons.
  • Page 5: Safety Instructions

    Safety Safety instructions These instructions contain safety notices intended to draw attention to possible dangers that should be observed to prevent injury. The pertinent text describes • the type of danger • the source of danger • the options for preventing injuries •...
  • Page 6: Residual Risks

    Safety For safe maintenance further, applicable documents are necessary. The information in these documents have to be adhered to. Gas spring operating instructions Safety data sheet "Exchange of spare parts" Operating instructions filling and control fitting. Residual risks WARNING! Filled gas springs are under high internal pressure. Before repairing, drain the nitrogen completely.
  • Page 7: Maintenance

    Maintenance MAINTENANCE Components Fig. 2-1 Components of the gas springs Piston rod Guide Dirt ring guard Circlip Warning tape Locking screw on service port Separated piston disc Guide ring Filter screen 10 DS piston seal 11 Flow restrictor 12 DS piston 13 Sealing ring 14 Non-return valve 15 Circlip halves...
  • Page 8: Inspection

    Maintenance Inspection 2.2.1 Check gas pressure NOTICE Use the tools given below for the test. The tools are available from FIBRO GMBH. Damage to the gas springs when using other tools. Pos. Description Article number Filling and checking equipment 2480.00.32.21 G1/8"...
  • Page 9 Maintenance 1) Prepare filling and checking equipment. – Turn the small knob (a) to the left as far as it will go. This will move the release pin (b) into the retracted position. – Close the outlet valve (c). – Screw the filling adapter onto the M6 thread on the fittings.
  • Page 10 Maintenance 7) After checking, turn the small knob to the left as far as it will go. The release pin moves into the retracted position and closes the valve. 8) Slowly open the knob on the outlet valve and bleed the fittings. 9) Unscrew the fittings from the gas spring by turning the large knob.
  • Page 11: Repairs

    NOTICE Damage to the gas pressure spring if other spare parts are used Only use genuine spare parts from FIBRO GMBH. All spare parts included in the spare parts kit must always be replaced completely. Spare parts set for gas spring 2486.22.
  • Page 12 Damage to the gas pressure spring if other resources and tools are used. Use the resources and special tools listed below for repairs. The resources and tools can be obtained from FIBRO GMBH. Equipment and tools Observe the operating instructions for the filling and checking equipment 2480.00.32.21.
  • Page 13 Maintenance Tools: Pos. Description Required parts from tool set (2480.00.50.11) M8 T-lever M16 T-lever Mounting sleeve Valve tongs Circlip tongs G1/8" valve tool M6 valve tool Fig. 2-3 Tool set 2480.00.50.11 To open the locking screw, an Allen wrench is required. To tighten the locking screw, a torque wrench with a hexagon inset socket is required.
  • Page 14: Evacuating Gas Pressure

    Maintenance 2.3.2 Evacuating gas pressure WARNING! High pressure  Serious injuries may result if the gas is not fully drained before removing the gas spring.  Only trained personnel with good product knowledge are permitted to carry out the activities described.
  • Page 15 Maintenance 1) Remove warning tape underneath the top C-notch to make the locking screw of the service port visible. WARNING! Escaping gas. High pressure. The locking screw of the service port is under high internal pressure.  The locking screw is permitted to be opened by a maximum of one full rotation, and must never be completely removed..
  • Page 16: Dismantle Gas Spring

    Maintenance 2.3.3 Dismantle gas spring Position of the components, see chapter 2.1 "Components" on page 7.  The gas spring must be evacuated completely (see chapter 2.3.2 "Evacuating gas pressure" on page 14). Check: Screw the T-lever into the piston rod. When the piston rod can be moved up and down by hand without resistance, there is no more gas in the gas spring.
  • Page 17 Maintenance 6. Remove the guide from the piston rod and dispose of. 7. Remove the blue guide ring from the piston rod. 8. Remove both piston disc halves from the piston rod. 9. Rotate the piston rod with DS piston. 10.
  • Page 18 Maintenance 13. Disassembling the DS piston. a) Remove the piston seal from the DS piston. b) Remove the O-ring from the DS piston. Ensure that the sealing groove in the DS piston is not damaged. c) Push the non-return valves out of the guides of the DS piston. d) Lever out the filter screen from the flow restrictor.
  • Page 19: Clean And Check Components

    Maintenance 14. Remove the old O-ring from the piston rod. 15. Retain the cylinder pipe, piston rod, DS piston and piston disc halves. Dispose of the remain- ing components. 2.3.4 Clean and check components • Clean the cylinder pipe, piston rod, DS piston and piston disc halves. •...
  • Page 20: Assemble Gas Spring

    Maintenance 2.3.5 Assemble gas spring NOTICE Jamming, damage to equipment. Make sure that the correct piston rod is installed. To check this, place the unmounted piston rod in the cylinder. The upper end of the piston rod and the cylinder have to be in alignment. 1.
  • Page 21 Maintenance 4. Pre-assemble the DS piston. a) Fit the O-rings onto the four non-return valves and lubricate. b) Screw the flow restrictor into the piston base. c) Insert the non-return valves with the O-ring into the piston base first. d) Fit the filter screen onto the flow restrictor. 5.
  • Page 22 Maintenance 8. Pull the DS piston upwards over the circlip halves. 9. Rotate the piston rod with DS piston by 180°. 10. Pull the O-ring and piston seal onto the DS piston base. 11. Fit the piston disc halves and the guide ring onto the piston rod. 12.
  • Page 23 Maintenance 20. Screw the T-lever into the piston rod. 21. Pull out the piston rod and the guide using the T-lever. Pull the T-lever until the guide is flush with the end of the cylinder pipe. 22. Close the service port with the locking screw. 23.
  • Page 24: Fill With Nitrogen

    Maintenance Fill with nitrogen NOTICE Damage to the gas pressure spring if other resources are used. Use the resources listed below for filling. The resources can be obtained from FIBRO GMBH. Pos. Description Article number Filling and checking equipment 2480.00.32.21 G1/8"...
  • Page 25 Maintenance 2) Screw the filling and checking equipment into the fill opening of the gas spring by turning the large knob. 3) Close the locking valve on the filling hose. 4) Screw the screw connection on the filling hose onto the nitrogen cylinder. 5) Fit the quick-fit lock on the filling hose onto the filling and checking equipment.
  • Page 26 Maintenance 8) After reaching the filling pressure, close the locking valve on the filling hose. 9) Close the nitrogen cylinder on the cylinder valve knob. 10) Re-open the locking valve on the filling hose. 11) Open the drain valve on the filling and checking equipment. –...
  • Page 27: Indexes

    Indexes INDEXES Third-party products The product contains no components from third-party companies. Glossary Term Explanation Instructions General designation for this document. Tightening torque Force with which a screw connection is tightened using a tool. Product General designation for the product described in these instruc- tions.
  • Page 28: Index

    Indexes Index Mounting sleeve 13 16 22 Allen wrench 13 15 Circlip 7 11 16 22 23 Non-return valve 7 Circlip halves 7 17 17 21 Non-return valves 11 18 21 Circlip tongs 13 Circlip tool 16 O-ring C-notch 15 DS piston 18 22 Components Non-return valves 21...
  • Page 29: Appendix

    Appendix APPENDIX Personal notes ..........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................29/30 Maintenance instructions Gas spring DS...
  • Page 30 Korea info@fibroinc.com T +86 21 60 83 15 96 T +82 32 624 0630 info@fibro.cn fibro_korea@fibro.kr FIBRO POLSKA SP. Z O. O. ALEJA ARMII KRAJOWEJ 220 PAWILON AG PIĘTRO 3/ POKÓJ 306 43-316 BIELSKO-BIAŁA POLSKA T +(48) 6980 57720 MEMBER OF THE LAEPPLE GROUP...

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