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Festo 7ADNc_en
6.
Push the piston into the cylinder barrel until the first lip ring protrudes
slightly at the other end of the cylinder barrel.
7. Pull the piston rod back again until the piston sits fully in the cylinder
barrel.
Note
This procedure ensures that the sealing lips of the two lip rings sit correctly
in the cylinder barrel.
7.5
Repairing and attaching the bearing and end caps
1. Remove the piston rod seal
1
from the bearing cap
2
.
2. Remove the O-ring
3
from the slot of the bearing cap and end cap.
1
3
2
Note
Check the plain bearing in the bearing cap for visible damage that can impair
its function, such as deposits and scoring. The entire bearing cap must be
replaced if the plain bearing is showing significant damage.
3. Clean the seat of the piston rod seal
1
.
4. Clean the seat of the O-ring
2
.
1
2
5. Grease the new piston rod seal as follows:
Area
Greasing
1
Grease reservoir
1)
of piston rod
Fill 2/3 with grease
2
External surface of bearing cap
Apply a thin film
1)
of
grease
3
Grease reservoir
1)
of bearing
Fill 2/3 with grease
1)
see Chapter
1 2 3
