Festo DZF - Page 20

20 / 24 Festo 7DZF / DZHb_en
• Insert the regulating screw into the bearing cap and end cap.
Note
The serrated ring is only present from size DZH-32-….
– Grease the new O-ring 3 and insert it in the groove in the regulating
screw 2.
– Screw in the regulating screw 2.
– Insert the serrated ring 1 into the bearing cap and end cap using an
appropriate tool.
1
2
3
• Clean the seat of the piston rod seal 1.
• Clean the seat of the O-ring 2.
• Clean the seat of the cushioning seal 3.
See chapter 5.1 "Cleaning"
1 2
3
• Grease the new piston rod seal (one per bearing cap on cylinders with
through piston rod (S2 / S20)) as follows:
Component Greasing
1 Grease reservoir
2)
for piston rod Fill 2/3 with grease
2 External surface for bearing cap Thin  lm
1)
3 Grease reservoir
2)
for bearing Fill 2/3 with grease
1)
See chapter 5.2.2 "Thin grease  lm"
2)
See chapter 5.2.3 "Grease reservoir"
1 2 3
• Insert the piston rod seal into the bearing cap (in both bearing caps on
cylinders with through piston rod (S2/S20)) using an appropriate thrust
piece.
Note
Note the mounting direction (individual sealing lips facing out).
• Grease the new O-rings 3 and insert them into the slots in the bearing cap
1 and end cap (the rear bearing cap on cylinders with through piston rod
(S2 / S20)).
• Apply a thin  lm of grease to the new cushioning seals 2 on the front side
with the sealing surface and insert them into the bearing cap 1 and end
cap (the rear bearing cap on cylinders with through piston rod (S2 / S20)).
31 2