Festo DGE-25 ZR RF Series, Repair Instructions

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4 / 48 Festo 7DGE_25-63_ZR_KFb_en
Table of contents
1 Important information 5
1.1 About these repair instructions 5
1.2 Pictograms used in these repair instructions 5
1.3 General safety information 6
2 General product description 6
2.1 Functional description 6
2.2 Types and part numbers 7
2.3 Overview of variants and mounting directions 7
3 Component overview 8
4 Repair steps 14
4.1 Dismantling the toothed belt axis 14
4.1.1 Disconnecting the slide from the piston (DGE-…-KF only) 14
4.1.2 Removing the cover strip 15
4.1.3 Removing the drive covers and the toothed belt 16
4.1.4 Removing and dismantling the piston 17
4.2 Linear recirculating ball bearing guide system (DGE-…-KF only) 18
4.2.1 Removing the guide rail 19
4.2.2 Replacing the roller bearing cartridges 20
4.2.3 Installing the guide rail with slide 22
4.3 Drive covers 24
4.3.1 Clamp pieces 24
4.3.2 Clamping sleeves (DGE-25 and DGE-40 only) and buffers 24
4.3.3 Toothed drive shafts 24
4.4 Replacing the toothed belt 26
4.5 Assembling the toothed belt axis 27
4.5.1 Preparing the cylinder barrel 28
4.5.2 Preparing the clamping bodies 28
4.5.3 Preparing the piston 28
4.5.4 Inserting the piston, clamp pieces and toothed belt 29
4.5.5 Checking and setting the toothed belt pretension 33
4.5.6 Additional information on checking the toothed belt pretension 36
4.5.7 Installing the cover strip 37
4.5.8 Connecting the slide to the piston (DGE-…-KF only) 38
4.6 Assembly and function check 40
4.6.1 Buffer and belt assembly 40
4.6.2 Switching characteristics of the magnet 40
4.6.3 No-load torque 40
5 Maintenance 41
5.1 Cleaning and lubricating the toothed belt axis 41
5.2 Lubricating the recirculating ball bearing guide 41
5.3 Toothed belt pretension 42
5.4 Moment compensator play 42
6 Tools 43
7 Liability 45