Too Little Material - Nordson VersaBlue VBN 50 Manual

6-4
Troubleshooting

Too Little Material

Problem
Material supply hole to
pump or pump suction hole
partially clogged
Tank isolation valve not
completely open
Filter cartridge partly
clogged
Pressure control valve
defective
Processing temperature set
too low
Pump block of the gear
pump worn
Material Pressure too High
Problem
Safety valve or pressure
control valve dirty and thus
blocked
Safety valve or pressure
control valve defective
Pressure control valve set
incorrectly
Pneumatic safety valve
(option) pressurized with
too high pressure
P/N 7146386A
Possible Cause
−
−
−
−
−
−
Possible Cause
−
−
−
−
VBN w/o Control System
Corrective Action
Detach pump and clean supply
hole or suction hole
Open
Clean or replace filter screen
Clean or replace
Correct temperature setting
Replace pump
Corrective Action
Disassemble and clean or replace
Replace
Set to default
Reduce pressure
E 2008 Nordson Corporation