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Rev. 1.2
8.5 Customer Service / Support
Walther Systemtechnik GmbH
Hockenheimer Straße 3
D-76726 Germersheim
Germany
9 Troubleshooting
9.1 General Information
IMPORTANT
First check all supply lines for connection and serviceability.
Only a trained technician will take care of the below described malfunctions.
In case of serious problems that cannot be resolved, please contact the Walther Systemtechnik GmbH
customer service.
Malfunction
Valve is actuated, but
no lubricant is ejected.
Leakage at bore hole
Permanent signal from
sensor
No signal from sensor
Air pockets in grease
system.
Assembly Instructions – Dosing Valves WDV-0x
Possible cause
Is no lubricant fed by
the feed pump?
Leakage
Seals defective
Sensor defective
Dosing volume too
small
Feed pressure of
grease too high
Broken cable
Sensor defective
Dosing piston in starting
position
Air pockets in grease
container.
Air pockets in tubing.
Phone
++49(0)7274-7022-0
Fax
++49(0)7274-7022-91
Email
info@walther-2000.de
Internet
www.walther-2000.de
Action
Check feed pump.
See operating manual of feed pump.
Check venting screw of feed pump.
See operating manual of feed pump.
Check dosing valve.
Exchange seals
Exchange sensor
Check dosing valve; check setting of dosing
volume and increase, if necessary; check position
of sensors
Reduce pump pressure to max. operating
pressure of dosing valve; possibly employ a
material pressure regulator
Exchange cable
Exchange sensor
Check pump pressure; check bore hole of grease
supply for contaminants
Disconnect tubing to dosing valve. Drain a quan-
tum of grease. Restart with dosage adjustment
screw set to maximum.
Walther Systemtechnik GmbH – D 76726 Germersheim
Telefon: +49 (0)7274-7022-0 Telefax: +49 (0)7274-7022-91
http://www.walther-2000.de – info@walther-2000.de
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