Product manual

Series B900-N and B900SW-N Manifold Mounted Electric Guns
22
Part 1041221B
E 2006 Nordson Corporation
Troubleshooting (contd)
Problem Possible Cause Corrective Action
2. Adhesive
output too
low
Defective RTD Unplug the gun cordset and verify
that the RTD connections are
secure. If the connections are
secure, check the continuity of the
RTD across the RTD pins on the
cordset. If there is no continuity,
replace the RTD. Refer to the
wiring diagram and resistance
data.
Module stroke not properly
adjusted
Adjust the module stroke, Refer to
Adjust the Module Stroke under
Installation.
Blockage in module Disassemble and reassemble the
module, removing blockages and
cleaning parts as needed. Refer
to Replace a Module Component
under Repair.
Melter flow control valve set too
low
Increase the system hydraulic
pressure (without stalling the
motor) by adjusting the flow
control valve. If there is no
change, inspect the flow control
valve for proper operation.
Replace the valve as necessary.
Adhesive viscosity too high Increase the overall system
temperature (melter and guns). If
there is no change, consult the
adhesive vendor.
NOTE: Do not exceed material
specifications.
Melter temperature too low Adjust. Refer to the melter
manual.
Incorrect nozzle size Replace the nozzle with a nozzle
that has a larger orifice.
Clogged nozzle Clean the nozzle. Refer to
Cleaning Nozzles under
Maintenance.
Clogged melter filter (where used) Clean or replace. Refer to the
melter manual.
Clog of unknown origin Purge the system to remove any
obstructions.
Continued...