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Festo 7CRHDb_en
1.3
General safety instructions
Warning
The cylinder with piston rod must only be repaired by authorised and trained persons in accordance with
the specifications in the technical documentation and using original spare parts.
Installation and repair by unauthorised and untrained persons, repairs using non-original spare parts or without
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 and the device-specific operating
instructions.
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 piston moves in the cylinder barrel when the cylinder chamber is pressurised. The piston rod transmits the movement
to the outside. The advanced piston rod is retracted again when the other cylinder chamber is pressurised.
aC
aA
aB
aJ
9
8
7
6
1
3
4 5
2
1
Piston rod
2
Piston rod seal
3
Bearing cap
4
Adjustment of front end-position
cushioning
5
Front compressed air connection
6
Cushioning boss
7
Piston
8
Cushioning boss
9
Adjustment of rear end-position
cushioning
aJ
Rear compressed air connection
aA
End cap with lug
aB
Cushioning seal
aC
Cylinder barrel
