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Festo 7DSBF-Ca_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.
4.5.5
Repairing and attaching the bearing and end caps
•
Unscrew the screwed insert
1
from the bearing cap
7
.
•
Remove the excluder
3
and the O-ring
2
from the screwed insert.
•
Remove the insert sleeve
4
with the wiper seal
6
and the O-ring
5
from
the bearing cap.
•
Separate the wiper seal and the O-ring from the insert sleeve.
1 2 3 4 5 6
7
•
Remove the O-ring
4
from the bearing cap
1
and end cap.
•
Remove the holding discs
3
from the bearing and end caps.
•
Remove the cushioning seal
2
from the bearing and end caps.
1
3
2
4
•
Remove any residue of the screw locking agent from the thread of the bear-
ing cap
1
and the screwed insert.
•
Clean the seat of the insert sleeve beneath the thread.
• Apply a thin fi lm of the grease included in the set of wearing parts to
the sliding surfaces of the cylinder bearing
2
.
If there is a grease reservoir in the cylinder bearing
3
, fi ll it 2/3 with
the grease included in the set of wearing parts.
•
Clean the seat of the cushioning seal
5
and the O-ring
4
.
2
1
4
3
5
•
Clean the seat of the wiper seal
2
and the O-ring
4
at the insert sleeve
1
.
•
Grease the outside
3
of the insert sleeve.
•
Grease the new wiper seal
6
as follows:
Area
Greasing
5
External surface for insert sleeve
Thin fi lm
1)
7
Grease reservoir
2)
for bearing
Fill 2/3 with grease
8
Grease reservoir
2)
for piston rod
Fill 2/3 with grease
1)
See chapter
5.2.2 "Thin grease fi lm"
2)
See chapter
5.2.3 "Grease reservoir"
2
1
3 4 5
7
6
8
