13 / 17
Festo 7DNCBa_en
4.3.5
Repairing and attaching the bearing and end caps
•
Remove the piston rod seal
1
from the bearing cap
2
.
•
Only with DNCB-32/40/50/63-…
Remove the holding discs
5
from the bearing cap and end cap.
•
Remove the cushioning seal
4
from the bearing cap and end cap.
•
Remove the O-ring
3
from the groove of the bearing cap and end cap.
1
2
3 4
5
•
Clean the seat of the piston rod seal
1
.
•
Clean the seat of the cushioning seal
2
.
•
Clean the groove for the O-ring
3
.
1
2
3
•
Grease the new piston rod seal as follows:
Area
Other cylinders
1
Grease reservoir
1)
for piston rod
Fill 2/3 with grease
2
External surface for bearing cap
Thin film
2)
3
Grease reservoir
1)
for bearing
Fill 2/3 with grease
1)
See section
2)
See section
1 2 3
•
Insert the piston rod seal into the bearing cap using the appropriate insertion
tool.
Note
Note the mounting direction (inscription facing out).
•
Grease the new O-ring and insert it into the groove in the bearing cap and
end cap.
• Apply a thin film of grease to the new cushioning seals on the front side of
the sealing surface and insert them into the bearing cap and end cap.
•
Only with DNCB-32/40/50/63-…
Place the new holding discs on the bearing cap and end cap.
