Rev. 1.1
Assembly Instructions - Full-Jet Valve VMS-05
Page 16 of 25
Walther Systemtechnik GmbH
– D 76726 Germersheim
Telefon: +49 (0)7274-7022-0 Telefax: +49 (0)7274-7022-91
http://www.walther-2000.de
9 Troubleshooting
9.1 General Information
IMPORTANT
First check all supply lines for connection and serviceability.
In case of serious problems that cannot be resolved, please contact the Walther Systemtechnik GmbH cus-
tomer service.
9.2 Malfunctions
Standard
Fault
Possible Cause
Action
Nozzle needle does
not open
Not enough control air supplied
Check if enough control air available (5 -
6 bar).
Valve does not activate
Check if micro-switch is defective
Leakages
Check if O-Rings (6.2 and 8.1) are
defective.
Nozzle needle (8) is sticky within the
sealing screw (6).
Disassemble and clean.
Needle stroke is set too low.
Check if needle stroke is correctly set.
Special Design
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-Rings (6.20 and 7.40) are
defective.
Needle (7.10) is sticky within the sealing
screw (6.10).
Disassemble and clean.
Needle stroke is set too low.
Check if needle stroke is correctly set.
