Festo DGE-25 ZR RF Series, Repair Instructions

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6 / 48 Festo 7DGE_25-63_ZR_KFb_en
1.3 General safety information
Warning
The toothed belt axis must only be repaired by authorised and trained persons in accordance with the specifications in
the technical documentation and using genuine spare parts.
Installation and repair by unauthorised and untrained persons, repairs using non-genuine spare parts as well as with-
out the technical documentation required for installation and/or repair are dangerous and therefore not permitted.
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
environmental protection regulations.
2 General product description
2.1 Functional description
The DGE-…-ZR is a toothed belt axis based on the operational principle of a circulating toothed belt for power transmis-
sion. The rotary motion of a servo or stepper motor produces a linear motion in a toothed belt with a pulley at both ends
of the axis that is then transmitted to the piston attached to the toothed belt.
The slot in the cylinder barrel required for this is covered by a cover strip that protects the toothed belt inside the axis
against the entry of dirt.
By minimising the moving dead weight, a high dynamic response and shorter cycle times can be achieved. The DGE-…-ZR
is approved for slide operation and yoke operation (cantilever operation).
aJ
aA
aB
aC
3 2 1 4 5 6 7 8 9
1
Drive cover with corner pulley
2
Cover
3
Clamp piece for clamping the
cover strip
4
Slide (DGE-…-KF only)
5 Adapter
6
Moment compensator
7 Piston
8
Cylinder barrel
9 Cover strip
aJ
Guiding bands on the piston
aA Toothed belt
aB
Deep-groove ball bearing
aC Drive trunnion