Festo DGC G Series, Repair Instructions

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38 / 44 Festo 7DGC-GFa_en
Setting the sliding play on the slide 4.2.4
If new slide elements are inserted in the slide, the sliding play has to be set.
The setting for the sliding play is adjusted by turning the regulating screws
2
in the slide
1
. The pressure piece
3
is thus used to change the contact pres-
sure of the
4
slide elements on the guide rail
5
.
The trapezoidal shape of the guide rail
5
distributes the contact pressure over
all three 4 slide elements.
The sliding play setting is secured by attaching the washers and tightening the
socket head screws (see below). The regulating screws
2
are thus clamped
between the pressure piece 3 and the slide 1 .
1
2
3
4
5
If not yet carried out:
Remove the slide-piston connection as described in • chapter 4.2.1.
Remove the socket head screws and washers from the top of the slide as •
described in chapter 4.2.3.
Set the sliding play by feel by turning the regulating screws so that the slide •
rests on the guide rail backlash-free but can still be shifted without exerting
much force.
Check the force required to shift the slide with a spring scale (see table for
•
values).
Change the setting of the regulating screws as necessary.
•
Repeat this procedure until the measured displacement force matches the •
values specified in the table.
Type Displacement force without connection
DGC-50-…-GF 30 N
DGC-63-…-GF 35 N
Place the washers on the regulating screws. •
Secure the regulating screw setting by inserting and tightening the socket •
head screws using the appropriate torque (see table).
Type Torque
DGC-50-…-GF 6.0 Nm ±10%
DGC-63-…-GF 6.0 Nm ±10%
Fit the slide-piston connection as described in • chapter 4.2.2.