Bürkert 2380, Руководство по эксплуатации, Страница: 17 / 23

17
Maintenanceandtroubleshooting
Type 2380
11.2. Maintenance
The device is maintenance-free provided it is used according to these
operating instructions.
However, the bellow is subject to natural wear.
Check the bellow for wear after a maximum of 10
6
switching cycles
or 1 year of operation.
Muddy and abrasive media or operation under inapprop-
riate conditions (e.g. high temperatures / pressures) require
correspondingly shorter inspection intervals!
The service interval can be extended at constant operating conditions
if the bellows show only minor signs of wear and tear.
If leaks occur or the bellow shows signs of wear replace the respective
parts (spare part set - see chapter „12“).
For all maintenance activities, ensure that dirt cannot penetrate the
system.
11.3. Malfunctions/troubleshooting
If errors occur, first check the electrical connections, fluidic connec-
tions and inlet pressure. Furthermore check that the assembly/instal-
lation was implemented according to operating instructions.
If the system is still not functioning correctly, please contact the relevant
Bürkert Service (chapter „4.1. Contact addresses“ at page 7).
Malfunction Cause / remedial action
Valve does not
open/close
(or rather not
completely) Control air port is not connected correctly:
→
Connect control air to port 1.
Control pressure too low:
→
See pressure specifications on the type label.
Valve is not
sealed. Control pressure too low (NO valves) :
→
See pressure specifications on the type label.
Media pressure too high:
→
See pressure specifications on the type label.
Sealing closure function (CUTOFF) not activated:
→
Activation according to the operating instruc-
tions for the Type 869x used
Bellow worn out:
→
Replace the bellow as described in chapter „12“
Cleaning
of media
chamber (valve
body + bellow)
dissatisfying Too little space between the ribs of the bellow
with valve in opened position
→
Open and close the valve while rinsing
X.TUNE is not
successful
→
Check the control air supply:
if this is in the required range, see also the
„error and warning messages“ in the ope-
rating instructions for type 869x
english