Accessories; Eliminating Malfunctions - Festo DNCKE S Serie Notice D'utilisation

DNCKE−...−S / KEC−...−S
10

Accessories

Name
Soft−start valve
One−way flow control valve
Non−return valves
Compensation reservoir
Self−aligning rod coupler
Mounting attachments
With position sensing magnet
Fig. 34
11

Eliminating malfunctions

Malfunction
Clamping does not Clamping does not
open
Hard knocking in
cylinder end posi
tion
50
Possible cause
Clamping unit leaky Clamping unit leaky
Insufficient operating pres
sure
KEC−... not adjusted correctly
Excessive speed
Insufficient cushioning
Mass too large
Type
HEL−..., MS..−DL−...
GRLA−.../GRLZ−...
HGL−...
VZS−...
FK−...
depending on application (see catalogue
specifications)
SME−8−K(S)−LED−24
SMT−8−PS(NS)−K(S)−LED−24−B
Remedy
Send to Festo with description of Send to Festo with description of
fault.
Increase operating pressure to
maximum permitted value
Adjust clamping rod again (see
chapter Commissioning prep
aration")
Reduce impact velocity/increase
cushioning or use additional ex
ternal cushioning elements
Festo DNCKE−...−S / KEC−...−S 1002a English