Repair Steps For The End Cap Module - Festo DFPI-ND2P Series Repair Instructions

Note
The sliding ring must not be opened too far during assembly, as this can
damage it.
6. Insert the sliding ring into the centre groove on the piston in axial direction.
The sliding ring can be opened slightly at the transverse groove during this
process.
The lip rings must be mounted in the correct position. If the sealing lips are
mounted in the wrong direction, they will not be able to provide a clean
seal for the cylinder chamber, and the function of the linear actuator will be
significantly affected.
7. The lip rings must be greased as follows before mounting:
Area
1 and 4 Grease reservoir
ring
2 and 3 External surface for the bearing surface of the
cylinder barrel
See section
1)
8. Insert the two lip rings into the seats in the piston.
If no further repair steps are necessary, the linear actuator can be
reassembled as described in section
4.5

Repair steps for the end cap module

The linear actuator type DFPI-...-ND2P is built with 2 different controllers. The repair steps differ depending on
the controller, and are described separately for each controller in these repair instructions; see section
2.5 „Production
Festo 7DFPIb_en
facing away from sliding
1)
6 „Cleaning and greasing".
4.9 „Assembling the linear
series".
Greasing
Fill 2/3 with
grease
Apply a thin film
actuator".
4 1
3 2
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