Rev. 1.1
Assembly Instructions
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Hand Dosing Device WDVHP-0x-HG
Page 14 of 19
Walther Systemtechnik GmbH
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D 76726 Germersheim
Telefon: +49 (0)7274-7022-0 Telefax: +49 (0)7274-7022-91
http://www.walther-2000.de
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9 Troubleshooting
9.1 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
customer service.
9.2 Malfunctions
Problem
Possible cause
Action
The valve works but no
lubricating medium is
ejected
Does the supply pump
transport lubricant?
If pump does not work anymore, refer to operating
manual of pump.
Check the ventilating screws in the supply pump
(see operating manual of pump).
Leakage
Check dosing valve
Leakage at control
boring
Defective sealing
Exchange sealing
Permanent signal from
sensor
Defective sensor
Exchange sensor
Dosing volume too low
Check dosing valve; check setting for dosing
volume and if necessary, increase; check position
of sensors
Supply pressure for
grease too high
Reduce pump pressure to max. operating
pressure; if necessary, insert a material pressure
controller
No signal from sensor
Cable breach
Exchange cable
Defective sensor
Exchange sensor
Dosing piston in start
position
Check pump pressure; check boring for grease
supply for contamination
Air in system
Air pockets in grease
container.
Air pockets in hoses.
Disconnect supply hoses from dosing valve, let
grease emerge, then re-connect hoses again. Re-
start with max. dosing quantity.
