Festo DZF - Inserting the Piston Rod into the Cylinder Barrel

14 / 24 Festo 7DZF / DZHb_en
• Apply the screw locking agent contained in the set of wearing parts to
the inside of the hex nut (the rear part of the piston rod on cylinders with
through piston rod (S2 / S20)) and screw it onto the piston rod with the
corresponding torque (see table).
Type Torque
DZF-25
DZF-25-…-A-P-A-S20
10 Nm
5 Nm
DZF-32
DZF-32-…-P-A-S2
DZF-25-…-A-P-A-S20
14.5 Nm
20 Nm
10 Nm
DZF-40
DZF-40-…-P-A-S2
DZF-40-…-A-P-A-S2
DZF-40-…-A-P-A-S20
20 Nm
9.5 Nm
9.5 Nm
9.5 Nm
DZF-50-…-P-A
DZF-50-…-A-P-A
DZF-50-…-P-A-S6
DZF-50-…-P-A-S2
DZF-50-…-A-P-A-S2
DZF-50-…-A-P-A-S20
20 Nm
20 Nm
20 Nm
40 Nm
40 Nm
15 Nm
DZF-63
DZF-63-…-P-A-S6
DZF-63-…-A-P-A-S6
DZF-63-…-P-A-S2
DZF-63-…-A-P-A-S2
DZF-63-…-A-P-A-S20
20 Nm
40 Nm
40 Nm
40 Nm
40 Nm
20 Nm
4.3.4 Inserting the piston rod into the cylinder barrel
• Clean the inside surface of the cylinder barrel as described in chapter
5.1 "Cleaning".
• Apply the grease included in the set of wearing parts to the following parts:
Component Greasing
Inside surface of cylinder barrel Thin lm
1)
Surface of piston rod Thin lm
1)
Piston seals Thin lm
1)
on outside
Piston surface between piston seals (grease reservoir
2)
) Fill 2/3 with grease
1)
See chapter 5.2.2 "Thin grease lm"
2)
See chapter 5.2.3 "Grease reservoir"
• Place the piston at against the front side of the cylinder barrel and insert
the piston seal into the cylinder barrel by tilting it slightly.
The lip of the piston seal must not fold back against the side of the piston.
Note
If necessary use a at and blunt-edged object to insert the piston seal into
the cylinder barrel.
• Insert the piston fully into the cylinder barrel.