Festo EGC-...-TB-KF Series Repair Instructions
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Festo EGC-...-TB-KF Series Repair Instructions

Toothed belt axis
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Toothed belt axis
EGC-...-TB-KF
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7EGC_TB_KFb_en

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Summary of Contents for Festo EGC-...-TB-KF Series

  • Page 1 Toothed belt axis EGC-…-TB-KF Repair instructions (en) 7EGC_TB_KFb_en...
  • Page 2 Imprint Version: 7EGC_TB_KFb_en (11.2011) Copyright: ©Festo AG & Co. KG P.O. Box D-73726 Esslingen Editorial team: SC-S Tel.: +49 (0) 711/347-0 E-mail: service_international@festo.com Internet: http://www.festo.com The reproduction, distribution and utilisation of this document as well as the communication of its contents to others without explicit authorisation is prohibited.
  • Page 3 These repair instructions have been prepared with care. Festo AG & 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 improper use of the products.

  • Page 4: Table Of Contents

    4.4.2 Installing the drive covers Assembly and function check 4.5.1 No-load torque Maintenance Cleaning and lubricating the toothed belt axis Lubricating the recirculating ball bearing guide Toothed belt pretension Tools Standard tools Special tools Devices and meters Liability 4 / 42 Festo 7EGC_TB_KFb_en...

  • Page 5: Important Information

    Can Before carrying out a repair, the maintenance tools, etc. (aids for be found on the Festo website assembly and maintenance). Can relevant section in these instructions (www.Festo.com). be found in the online spare parts must be read in full and followed • Spare parts documentation...

  • Page 6: General Safety Information

    Repairs must only be carried out in conjunction with these repair instructions as well as the respective operating instructions for the device. Note Instead of carrying out the repair yourself, your local Festo sales office offers the option of having the repair carried out by Festo. Environment Components and equipment replaced as part of a repair must be disposed of in accordance with the locally valid envi- ronmental protection regulations.

  • Page 7: Types And Part Numbers

    Part number codes, technical data and dimensions for the toothed belt EGC-50-…-TB-KF 556812 axes EGC-…-TB-KF can be found in the product catalogue or EGC-70-…-TB-KF 556813 on the Festo website (www.Festo.com). EGC-80-…-TB-KF 556814 EGC-120-…-TB-KF 556815 EGC-185-…-TB-KF 556817 Overview of variants and mounting directions This diagram provides an overview of the mounting directions and slide variants for the toothed belt axis.

  • Page 8: Component Overview

    Component overview EGC-50-…-TB-KF This diagram is intended only to provide an overview of the individual components. To order spare and wearing parts, please use the online spare parts catalogue on the Festo website (spareparts.Festo.com). 8 / 42 Festo 7EGC_TB_KFb_en...
  • Page 9 Drive cover Threaded pin DIN 913-M3×4-45H Tightening torque 0.1 Nm, use LOCTITE 243 Clamping plate Socket head screw DIN 912-M3×25-8.8 Clamping body Clamping body module Slide module Slide and roller carriage not available individually Toothed belt Festo 7EGC_TB_KFb_en 9 / 42...

  • Page 10: Egc-70

    EGC-70-…-TB-KF This diagram is intended only to provide an overview of the individual components. To order spare and wearing parts, please use the online spare parts catalogue on the Festo website (spareparts.Festo.com). 10 / 42 Festo 7EGC_TB_KFb_en...
  • Page 11 DIN 912-M4×25-8.8 Clamping body Clamping body module Roller carriage Standard design Roller carriage Protected version Slide Standard slide Slide Extended slide Socket head screw DIN 912-M3×8-12.9 Tightening torque 2.5 Nm, use LOCTITE 243 Toothed belt Festo 7EGC_TB_KFb_en 11 / 42...

  • Page 12: Egc-80

    EGC-80-…-TB-KF This diagram is intended only to provide an overview of the individual components. To order spare and wearing parts, please use the online spare parts catalogue on the Festo website (spareparts.Festo.com). 12 / 42 Festo 7EGC_TB_KFb_en...
  • Page 13 DIN 912-M5×25-10.9 Clamping body Clamping body module Roller carriage Standard design Roller carriage Protected version Slide Standard slide Slide Extended slide Socket head screw DIN 912-M3×10-12.9 Tightening torque 2.5 Nm, use LOCTITE 243 Toothed belt Festo 7EGC_TB_KFb_en 13 / 42...

  • Page 14: Egc-120

    EGC-120-…-TB-KF This diagram is intended only to provide an overview of the individual components. To order spare and wearing parts, please use the online spare parts catalogue on the Festo website (spareparts.Festo.com). 14 / 42 Festo 7EGC_TB_KFb_en...
  • Page 15 DIN 912-M6×40-10.9 Clamping body Clamping body module Roller carriage Standard design Roller carriage Protected version Slide Standard slide Slide Extended slide Socket head screw DIN 912-M6×10-10.9 Tightening torque 15 Nm, use LOCTITE 243 Toothed belt Festo 7EGC_TB_KFb_en 15 / 42...

  • Page 16: Egc-185

    EGC-185-…-TB-KF This diagram is intended only to provide an overview of the individual components. To order spare and wearing parts, please use the online spare parts catalogue on the Festo website (spareparts.Festo.com). 16 / 42 Festo 7EGC_TB_KFb_en...
  • Page 17 Clamping plate Socket head screw DIN 912-M8×40-10.9 Clamping body Clamping body module Roller carriage Standard design Slide Standard slide Slide Extended slide Socket head screw DIN 912-M8×14-10.9 Tightening torque 30 Nm, use LOCTITE 243 Toothed belt Festo 7EGC_TB_KFb_en 17 / 42...

  • Page 18: Repair Steps

    – Check which closed-loop controller settings can be adapted (e.g. jerk limitation, smoothing of the acceleration profile). 18 / 42 Festo 7EGC_TB_KFb_en...

  • Page 19: Replacing The Toothed Belt

    (horizontal/vertical) as well as the specified maximum driving torque or the feed force correspond to the permissible values for the toothed belt axis used. – Use the Festo “Positioning Drives” sizing software, available via the Festo website (www.Festo.com), to size the toothed belt axis. • Ambient conditions/material resistance Check whether the ambient temperature is within the permissible range.
  • Page 20 4.1.4 “Cutting the toothed belt to length”. • Pull the old toothed belt carefully out of the axis until the new belt is pulled through it. • Separate the old toothed belt from the new one. 20 / 42 Festo 7EGC_TB_KFb_en...
  • Page 21 Note the minimum bending radius for assembly and storage (see section 4.1.4 “Cutting the toothed belt to length”). • Insert the clamping body into the groove in the cylinder barrel through the recess in the drive cover. Festo 7EGC_TB_KFb_en 21 / 42...
  • Page 22 The use of threaded inserts with SCREWLOCK and the dynamic load on ® the adjusting screw mean that only original spare parts from Festo with the appropriate strength class may be used. Otherwise the screws can break prematurely. The clamping bodies must not touch the slide when they are being screwed in as otherwise the toothed belt could become overstretched and the service life of the toothed belt would be reduced.

  • Page 23: Checking And Setting The Toothed Belt Pretension

    222 mm/50 mm Alternatives for toothed belt axes with very short stroke. Note The longer strand length should preferably be set if possible. A longer freely oscillating strand length reduces the variation of the measurement results. Festo 7EGC_TB_KFb_en 23 / 42...
  • Page 24 Turning the socket head screw anticlockwise decreases the tension in the toothed belt, and with this its oscillation frequency. • Place the cover cap in the drive cover. 24 / 42 Festo 7EGC_TB_KFb_en...

  • Page 25: Additional Information On Checking The Toothed Belt Pretension

    For this reason, several measurements should always be carried out to differentiate the necessary basic oscillation (natural frequency) from the harmonic oscillation. Only this frequency can be used to extrapolate the force acting along the strand. Festo 7EGC_TB_KFb_en 25 / 42...

  • Page 26: Cutting The Toothed Belt To Length

    Cutting the toothed belt to length The toothed belt is ordered from the online spare parts catalogue (spareparts.Festo.com) using the corresponding part number. The part number is a module number and is dependent on the size of the toothed belt axis. You must specify the stroke, the stroke reserve and the type of slide required for your toothed belt axis in addition to the part number when ordering.

  • Page 27: Dismantling The Toothed Belt Axis

    • Move the slide to the left and right to release the clamping bodies from the slide. • Push the two clamping bodies out of the cylinder barrel through the recess in the drive covers. Festo 7EGC_TB_KFb_en 27 / 42...
  • Page 28 Loosen the socket head screws in the drive cover and unscrew them. • Pull the drive cover away from the cylinder barrel. Note The drive covers are connected to the cylinder barrel using spring pins. A certain amount of force is required to pull them away. 28 / 42 Festo 7EGC_TB_KFb_en...

  • Page 29: Repairing The Drive Covers

    The toothed belt pulley module sits in a clearance fit in the drive cover with two pressed-on deep-groove ball bearings and is axially secured by a retaining ring. Removing the toothed belt pulley module • Lever the sealing discs out of the drive cover. • Disassemble the retaining ring. Festo 7EGC_TB_KFb_en 29 / 42...
  • Page 30 • Insert the retaining ring. Note Check that the retaining ring is correctly positioned. • Press the sealing discs into the drive cover so that the deep-groove ball bearings have extra protection against soiling. 30 / 42 Festo 7EGC_TB_KFb_en...

  • Page 31: Linear Recirculating Ball Bearing Guide System

    Note Festo recommends, as a basic principle, that you always replace the entire drive if a defect occurs in the linear recircu- lating ball bearing guide system. Replacement of the roller carriages is undertaken by users at their own risk.

  • Page 32: Renewing The Roller Carriages

    Renewing the roller carriages Note Festo recommends, as a basic principle, that you always replace the entire drive if a defect occurs in the linear recircu- lating ball bearing guide system. Replacement of the roller carriages is undertaken by users at their own risk.
  • Page 33 Slowly push the new roller carriages onto the guide rail. Make sure that no balls come out of the roller carriages during this process. Note Balls that have come out of the roller carriages must be replaced in the cor- responding bearing. Festo 7EGC_TB_KFb_en 33 / 42...
  • Page 34 Tighten the socket head screws slightly. • Press the slide against the roller carriages. • Tighten the socket head screws using the appropriate torque (see table). Type Torque EGC-70 2.5 Nm EGC-80 2.5 Nm EGC-120 15 Nm EGC-185 30 Nm 34 / 42 Festo 7EGC_TB_KFb_en...

  • Page 35: Assembling The Toothed Belt Axis

    • Insert the left-hand end of the toothed belt together with the clamping plate into the clamping body. • Align the toothed belt axially with the centre of the clamping body. Festo 7EGC_TB_KFb_en 35 / 42...
  • Page 36 Apply Loctite 243 to the socket head screws and screw them into the cylinder barrel through the drive cover. • Tighten the socket head screws using the appropriate torque (see table). Type Torque EGC-50 1.2 Nm EGC-70 2.5 Nm EGC-80 5 Nm EGC-120 11 Nm EGC-185 11 Nm 36 / 42 Festo 7EGC_TB_KFb_en...
  • Page 37 The use of threaded inserts with SCREWLOCK and the dynamic load on ® the adjusting screw mean that only original spare parts from Festo with the appropriate strength class may be used. Otherwise the screws can break prematurely. The clamping bodies must not touch the slide when they are being screwed in as otherwise the toothed belt could become overstretched and the service life of the toothed belt would be reduced.

  • Page 38: Assembly And Function Check

    These versions cannot be relubricated. Documents Festo offers a one-hand high-pressure grease gun with a suitable pinpoint nozzle for greasing the lubricating holes. See Special tools in section 6.2 “Special tools”.

  • Page 39: Toothed Belt Pretension

    Lubrication intervals The roller carriages should be relubricated with Festo LUB-KC1 after 3 years or a corresponding distance (load-dependent) (see operating instructions, chapter 8). Warning The lubrication intervals are halved under the following operating conditions: • Ambient temperatures > 40 °C.

  • Page 40: Tools

    Festo order no. Photo information One-hand high-pressure grease Pinpoint nozzle for 647 958 miniature funnel- shaped lubrication nipple and lubricating holes See “Assembly aids” in the online spare parts catalogue on the Festo website (www.Festo.com). 40 / 42 Festo 7EGC_TB_KFb_en...

  • Page 41: Devices And Meters

    (DGE-25/40/63-ZR-(KF), DGE-25/40/63-ZR-RF, EGC-TB-KF), frequency meter TB-TE-EQ3/760459, mounting kit TB-TE-EQ4/760460 (ELGA-TB) and test equipment TB-TE-EQ5/760461 (ERMB/EHMB). Liability The General Terms and Conditions of Festo AG & Co. KG, which can be viewed on the Festo website (www.Festo.com) apply. Festo 7EGC_TB_KFb_en 41 / 42...
  • Page 42 Festo shall have the correspond- status as the last printed edition. and 2 completely to a third party. The third ing rights of use. Festo permits the user to party must be made explicitly aware of these 2. Furthermore, Festo cannot be held liable use the electronic documentation under the conditions of use.
  • Page 43 Toothed belt pretension test equipment Operating instructions (en) 7Tension01_TBb_en...
  • Page 44 Imprint Version: 7Tension01_TBb_en (11.2011) Copyright: ©Festo AG & Co. KG P.O. Box D-73726 Esslingen Editorial team: SC-S Tel.: +49 (0) 711/347-0 E-mail: service_international@festo.com Internet: http://www.festo.com The reproduction, distribution and utilisation of this document as well as the communication of its contents to others without explicit authorisation is prohibited.
  • Page 45 These operating instructions have been prepared with care. Festo AG & Co. KG does not, however, accept liability for any errors in these operating instructions or their consequences. Likewise, no liability is accepted for direct or consequential damage resulting from improper use of the product.
  • Page 46 6.3.1 Checking the toothed belt pretension 6.3.2 Setting the toothed belt pretension 6.3.3 Additional information on checking the toothed belt pretension Quick guide DGE-…-ZR(-KF) DGE-…-ZR-RF EGC-…-TB-KF ELGA-TB-G-… Maintenance and care Accessories and ordering data Assembly and function check Tools Liability 4 / 20 Festo 7Tension01_TBb_en...

  • Page 47: Important Information

    This sign provides information on the steps required for environmentally friendly use of materials and equipment, as well as the guidelines and regulations that may need to be observed. Documents This sign contains references to other sections or documents containing additional information. Festo 7Tension01_TBb_en 5 / 20...

  • Page 48: General Safety Information

    Mounting kit for ELGA-TB 1 Position stop bolt 2 Position stop, left 3 Position stop, right 4 Distance piece for ELGA-TB-G-120 5 Distance piece for ELGA-TB-G-80 6 Distance piece for ELGA-TB-G-70 7 Transport holder for distance pieces 6 / 20 Festo 7Tension01_TBb_en...

  • Page 49: Function And Application

    Checking and setting the toothed belt pretension must only be performed on toothed belt axes whose electric power units have been disconnected. The information in the corresponding repair instructions for the respective toothed belt axis apply to the steps described in these operating instructions. Festo 7Tension01_TBb_en 7 / 20...

  • Page 50: Application And Operation

    • If necessary, push the relevant clamp piece through the recess in the cylinder barrel between the toothed belt and the cylinder barrel. It must touch the clamping body. 8 / 20 Festo 7Tension01_TBb_en...

  • Page 51: Preparing The Test Equipment

    25 mm EGC-50-TB-KF 25 mm EGC-70-TB-KF 25 mm EGC-80-TB-KF 25 mm EGC-120-TB-KF 25 mm EGC-185-TB-KF 25 mm ELGA-TB-G-70 25 mm ELGA-TB-G-80 25 mm ELGA-TB-G-120 25 mm • Screw the plunger housing back into the test equipment. Festo 7Tension01_TBb_en 9 / 20...

  • Page 52: Attaching The Stop Bolts

    13 mm DGE-40-ZR-RF 13 mm DGE-63-ZR-RF 13 mm EGC-50-TB-KF 8 mm EGC-70-TB-KF 11 mm EGC-80-TB-KF 13 mm EGC-120-TB-KF 13 mm S.L.: C, S.R.: F EGC-185-TB-KF 13 mm ELGA-TB-G-70 11 mm ELGA-TB-G-80 11 mm ELGA-TB-G-120 11 mm 10 / 20 Festo 7Tension01_TBb_en...

  • Page 53: Attaching The Test Equipment

    Push the test equipment forwards so that the position stops on the cylinder barrel touch the toothed belt axis. Note (DGE-…-ZR-KF) The guide rail of the toothed belt axis must be pointing forwards to check the toothed belt pretension. Festo 7Tension01_TBb_en 11 / 20...
  • Page 54 • Push the test equipment backwards so that it is touching the guide rail. Note The test equipment is attached to the guide rail by means of integrated magnets. 12 / 20 Festo 7Tension01_TBb_en...
  • Page 55 • Push the measurement head of the acoustic belt tension meter all the way into the holder on the test equipment. Festo 7Tension01_TBb_en 13 / 20...

  • Page 56: Checking And Setting The Toothed Belt Pretension

    The belt must be able to oscillate freely. Push clamp pieces into the toothed belt axis if necessary (see section 6.2 “Preparing the test equipment”). To assess the toothed belt pretension, several measurements should be made to balance out any measurement tolerances. 14 / 20 Festo 7Tension01_TBb_en...

  • Page 57: Setting The Toothed Belt Pretension

    A force stimulus is applied to the toothed belt to start it oscillating. The natural frequency of the toothed belt generated in this way is recorded using a meter and displayed as a frequency value in hertz. Festo 7Tension01_TBb_en 15 / 20...

  • Page 58: Quick Guide

    25 mm S.L. 8 mm/A EGC-70-TB-KF 25 mm S.R. 11 mm/B EGC-80-TB-KF 25 mm S.L. 13 mm/C EGC-120-TB-KF 25 mm S.L. or S.R. 13 mm/S.L.: C, S.R.: F EGC-185-TB-KF 25 mm S.L. or S.R. 13 mm/E 16 / 20 Festo 7Tension01_TBb_en...

  • Page 59: Elga-Tb-G

    ELGA-TB-G-80 25 mm S.L. or S.R. 11 mm/E ELGA-TB-G-120 25 mm S.L. or S.R. 13 mm/E Maintenance and care If necessary, clean the toothed belt pretension test equipment using a soft cloth and gentle detergent. Festo 7Tension01_TBb_en 17 / 20...

  • Page 60: Accessories And Ordering Data

    TB-TE-EQ4/760460 (ELGA-TB) and test equipment TB-TE-EQ5/760461 (ERMB/EHMB). Assembly and function check After completing the setting work on the toothed belt axis, the correct function must be checked using the relevant chap- ters in the repair instructions. 18 / 20 Festo 7Tension01_TBb_en...

  • Page 61: Tools

    Refer to the repair instructions for the respective toothed belt axis for an overview of the tools and aids for setting the toothed belt pretension. Liability The General Terms and Conditions of Festo AG & Co. KG, which can be viewed on the Festo website (www.Festo.com) apply. Festo 7Tension01_TBb_en...
  • Page 62 Festo shall have the correspond- status as the last printed edition. and 2 completely to a third party. The third ing rights of use. Festo permits the user to party must be made explicitly aware of these 2. Furthermore, Festo cannot be held liable use the electronic documentation under the conditions of use.

This manual is also suitable for:

Egc-50-...-tb-kf seriesEgc-70-...-tb-kf seriesEgc-120-...-tb-kf seriesEgc-185-...-tb-kf seriesEgc-80-...-tb-kf series

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