Rev. 1.1
Assembly Instructions - MINI-Full-Jet Valve VMS-08
Page 12 of 16
Walther Systemtechnik GmbH
– D 76726 Germersheim
Telefon: +49 (0)7274-7022-0 Telefax: +49 (0)7274-7022-91
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8.5 Replacing Nozzle and Nozzle Needle
CAUTION
Make sure that all connections are depressurized.
.
Disconnect all connections from energy, pressure and material supply!
Remove/unscrew Luer-Lock adapter (1).
Then unscrew adapter-holder (2).
(Caution: there is spring pressure at the sealing sleeve (3) and the needle (4))
Carefully pull out sealing sleeve (3) and needle (4).
Make sure that the pressure spring (5) does not get lost.
Slightly grease new needle (4) and insert into sealing sleeve (3); then clean needle tip from remaining
grease.
Insert new needle (4) together with the sealing sleeve (3) into the main body. Make sure that the pres-
sure spring (5) is located in the correct position.
Screw the adapter-holder (2) into the main body.
Screw in new Luer-Lock adapter (1).
Perform a function test after replacing adapter and needle!
CAUTION
Always replace Luer-Lock adapter (1) and needle (4) at the same time.
IMPORTANT
When reusing nozzles and nozzle needles, these have to be thoroughly cleaned from
any sediments or medium residues. If material remains in the nozzles, this can cause
leakages in the nozzle-needle system; and nozzle needles with cured medium residues
can damage the sealing elements in the spraying system.
