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Festo 7ADVU / AEVUa_en
4.4
Repairing compact cylinder ADVU-125-…
The description in this chapter can be used to repair compact cylinders of type ADVU-125-…:
Code Description
A
Male thread
P
Elastic cushioning discs (only in series up to February 2011)
A
Position sensing
S6
Seals heat-resistant up to 120°C
S2
Through piston rod
R3
Increased corrosion protection
4.4.1
Structure of the bearing cap
1
2
4
3
1
Bearing cap
2
O-ring
3
Bearing
4
Wiper seal
4.4.2
Removing the bearing and end caps
•
Loosen the self-tapping screws in the bearing and end caps (the rear
bearing cap on cylinders with through piston rod (S2 )) and remove them.
•
Pull the bearing and end caps away from the cylinder barrel and piston rod.
4.4.3
Replacing the piston components
•
Pull the piston rod out of the cylinder barrel.
•
Check the cylinder barrel and piston rod for damage.
The entire cylinder must be replaced if the cylinder barrel (particularly the
bearing surface) is showing significant damage.
