Rev. 1.6
Assembly Instructions - Micro Point Pulse Valve MPP-03-PRO
Page 13 of 22
Walther Systemtechnik GmbH
– D 76726 Germersheim
Telefon: +49 (0)7274-7022-0 Telefax: +49 (0)7274-7022-91
http://www.walther-2000.de
8 Troubleshooting
8.1 General Information
IMPORTANT
First check all supply lines for proper connection and serviceability.
In case of serious problems that cannot be resolved, please contact the Walther Systemtechnik GmbH cus-
tomer service.
8.2 Failures
Fault
Possible Cause
Action
Nozzle needle does
not open
Not enough control air supplied
Check if enough control air available (5 -
6 bar).
Leakages
Check if O-Ring (6.2) or (7.1) is
defective.
Check, if needle is sticky within the sealing
screw (7.0 / 6.0).
Disassemble and clean.
Needle stroke is set too low.
Check if needle stroke is correctly set.
9 Taking out of Service
9.1 Short Interruption
A short interruption (15 min or more) has to be followed by a fine spraying.
IMPORTANT
Please follow the Operating Manual!
9.2 Long-term Interruption
The following has to be observed for a long-term interruption of the device/machine:
Depressurize material supply lines
Clean nozzle (1.0) with a special thinner and a soft cloth. Make sure that no cloth fibers are left on the
nozzle tip
IMPORTANT
Please follow the maintenance guidelines!
9.3 Shutdown of Device
The following is important for a shutdown of the machine / device:
Clean pulse valve with a special thinner.
IMPORTANT
Please follow the maintenance guidelines!