43 / 49Festo 7DSBGa_en
4.6.6 Inserting the piston rod into the cylinder barrel
1. Clean the inside surface of the cylinder barrel ( Chapter 5.1 on page 47).
2. Grease the following components with the grease included in the set of
wearing parts:
Component Greasing
Inside surface of cylinder barrel apply a thin lm
1)
of
grease
Surface of piston rod apply a thin lm
1)
of
grease
Piston seal lip rings apply a thin lm
1)
of
grease on the outside
Piston surface between lip rings
(grease reservoir
2)
)
Fill 2/3 with grease
Cushioning boss apply a thin lm
1)
of
grease on the outside
1)
Chapter 5.2.1 on page 47
2)
Chapter 5.2.2 on page 47
3. Position the piston at against the front side of the cylinder barrel.
Note
The sealing lip of the lip ring may not fold back against the inside of the
piston.
If necessary, push a thin piece of lm rolled into a funnel shape a short way
into the cylinder barrel, in order to insert the lip ring into the cylinder barrel.
4. Insert the lip ring in the cylinder barrel by tilting and turning the ring slightly.
5. Insert the piston fully into the cylinder barrel.
6. Push the piston into the cylinder barrel until the rst lip ring protrudes
slightly out of the other end of the cylinder barrel.
7. Pull the piston rod back again until the piston sits fully in the cylinder barrel.
This procedure ensures that the sealing lips of the two lip rings sit correctly
in the cylinder barrel.
4.6.7 Repairing and attaching the bearing and end caps
1. Remove the circlip 1 from the bearing cap 8.
2. Remove the distance sleeve 2 from the bearing cap.
3. Remove the scraper 3 from the bearing cap.
4. Remove the insert sleeve 4 with scraper ring 5 and O-ring 6 from the
bearing cap.
5. Separate the scraper ring and O-ring from the insert sleeve.
1 2 3 4 5 6 87
Illustrated: DSBG-32-...-T3-A6