Nordson AltaBlueA4TP - Page 171

Troubleshooting
6-49
Part 1107600_03
 2014 Nordson Corporation
No faults >
Ready LED is illuminated >
No hot melt output from all guns >
Motor is turning
T.4.2
Fill the tank.
Repair the pump or
manifold seals.
Refer to Section 7, Parts,
for service kits.
+
−
Is the pressure control
valve turned fully
counterclockwise (no
pressure)?
Adjust the pressure control
valve.
Refer to Adjusting the
Pressure Control Valve in
Section 3, Installation.
+
−
Check and clean or replace
the pressure control valve.
Refer to Section 7, Parts.
Is the filter excessively
dirty?
Refer to Replacing the
Adhesive Filter in
Section5, Maintenance.
Replace the filter.
50‐mesh P/N 1021941
100‐mesh P/N 1028305
200‐mesh P/N 1021918
+
−
Is the tank empty?
+
−
Is the pump input shaft
turning?
Replace the
motor‐to‐pump coupling or
replace the shaft key.
−
+
Is there hot melt leakage
around the pump or
manifold?