Nordson VersaBlue 100H/100H, Manual

Page: 70 / 108

Maintenance
5-20
P/N 7146386A
E
2008 Nordson Corporation VBN w/o Control System
Filling Valve
Available only with option Level control with filling connection .
If material seeps out of the air relief hole, the control module must be
replaced.
Fig. 5-24 Air relief hole
Replacing Control Module
Nordson recommends keeping a supply of control modules on hand to
prevent disruptions in production.
NOTE: Replace only when the control module is warm and the material is
soft (approx. 70 ° C / 158 ° F, depending on material).
WARNING: System and adhesive pressurized. Relieve system pressure.
Failure to observe can result in serious burns.
1. Disconnect air supply and electrical connection.
2. Release screws M5 and extract control module from the warm filling
valve.
3. Put new control module in place and tighten screws crosswise.
4. Re-connect air supply and electrical connection.
NOTE: Observe voltage shown on solenoid valve ID plate.
Control air pressure:
4 to 6 bar 400 to 600 kPa 58 to 87 psi
The quality of the compressed air must be at least class 2 in compliance
with ISO 8573 − 1. This means:
S
Max. particle size 30
m
m
S
Max. particle density 1 mg/m
3
S
Max. pressure dew point − 40 ° C
S
Max. oil concentration 0.1 mg/m
3
.