Product manual

Series B900-N and B900SW-N Manifold Mounted Electric Guns
27
E 2006 Nordson Corporation
Part 1041221B
Corrective ActionPossible CauseProblem
10. Poor
adhesive
cutoff
Module stroke not properly
adjusted
Adjust the module stroke. Refer
to Adjusting the Module Stroke
under Installation.
Blockage in module Disassemble and reassemble the
module, removing blockages and
cleaning parts as needed. Refer
to Replacing a Module
Component under Repair.
Incorrect distance from substrate Verify mounting of the gun for
adequate bead placement.
Incorrect nozzle type or size Some nozzles require extra
warm-up time or have poor cutoff
when the gun is mounted
horizontally. Contact a Nordson
representative for assistance with
the application.
System pressure incorrect Adjust pressure up or down until
desired performance is achieved.
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.
Nozzle loose Verify that the nozzle is secure.
Adjust or replace as needed.
11. Excess
residue
Nozzle leaking Clean or replace if necessary.
Incorrect nozzle type or size Some nozzles require extra
warm-up time or have poor cutoff
when the gun is mounted
horizontally. Contact a Nordson
representative for assistance with
the application.
Nozzle loose Verify that the nozzle is secure.
Adjust or replace as needed.
Incorrect distance from substrate Verify mounting of the gun for
adequate bead placement.