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Festo 7CRDNGb_en
• Push the piston far enough into the cylinder barrel so that the fi rst lip ring
protrudes slightly at the other end of the cylinder barrel.
•
Pull the piston rod back again until the piston is sitting fully in the cylinder
barrel.
Note
This approach ensures that the sealing lips of the two lip rings sit correctly in
the cylinder barrel.
4.4.5
Repairing and attaching the bearing and end caps
•
Remove the retaining ring and piston rod seal from the bearing cap.
•
Remove the O-ring from the groove of the bearing cap and end cap.
•
Remove the cushioning seal from the bearing cap and end cap.
Warning
Check the plain bearing in the bearing cap for visible damage that might
impair its function, such as deposits and scoring. The entire bearing cap
must be replaced if the plain bearing is showing signifi cant damage.
•
Only when repairing the adjustable cushioning (PPV)
Note
Proceed as described in chapter
4.5 "Repairing the adjustable end-position
cushioning (PPV)"
to repair the adjustable end-position cushioning.
•
Clean the seat of the piston rod seal
1
.
•
Clean the seat of the O-ring
2
.
•
Clean the seat of the cushioning seal
3
.
See chapter
5.1 "Cleaning"
1
2
3