Nordson Universal Series User Manual

Troubleshooting
6-3
Part 1079832_04
E 2015 Nordson Corporation
Adhesive Output Problems
Refer to this troubleshooting table if the adhesive output is too low or too high
or if there is no adhesive output.
NOTE: Each heated component in a hot melt system (typically the grid, the
reservoir, each hose, and each applicator) is referred to as a heated zone.
The applicator's heated zones are the adhesive manifold and the heated air
manifold. Some applicators may have multiple adhesive manifold and heated
air manifold zones.
Problem Possible Cause Corrective Action
1. Adhesive output too
low or too high
Heated zone temperature setpoints
too low or too high
Adjust the temperature setpoints as
necessary. Refer to the melter or
temperature controller manual.
Melter pump not supplying correct
amount of adhesive
Troubleshoot and correct the
adhesive supply problem from the
melter. Refer to the melter manual.
Blockage in hose-to-applicator or
hose-to-melter connection
Check for blockages in the
connections. Check also for a cold
connection. Install insulation around
any cold connections. If the adhesive
output does not improve, install a
heated inline filter at the connection.
Clogged filter Replace the filter screen. Refer to the
filter screen replacement procedure in
Section 10, Filter.
Blockage in module or nozzle Check for blockage in the module or
nozzle.
2. No adhesive output
Adhesive not at application
temperature
Wait for the system to reach
application temperature.
Heated zone temperature setpoints
too low or too high
Adjust the temperature setpoints as
necessary. Refer to the melter or
temperature controller manual.
Adhesive level in melter low Add adhesive to the melter. Refer to
the melter manual.
Blockage in hose-to-applicator or
hose-to-melter connection
Check for blockages in the
connections. Check also for a cold
connection. Install insulation around
any cold connections. If the adhesive
output does not improve, install a
heated inline filter at the connection.
Continued on next page

Nordson Universal Series Specifications

General

Brand	Nordson
Model	Universal Series
Category	Paint Sprayer
Language	English