Product manual

Series B900-N and B900SW-N Manifold Mounted Electric Guns

Part 1041221B

E 2006 Nordson Corporation

Operation

Prepare for Operation

1. Start the melter and allow it to reach operating temperature. Refer to the melter manual

as needed.

2. Tighten all hydraulic fittings.

3. Remove the gun nozzles and flush adhesive through the guns. Refer to the melter

manual for the flushing procedure.

4. Reinstall the gun nozzles.

Set the Gun Temperature

Use a pyrometer to periodically measure the operating temperature of the gun. Adjust the

temperature of the gun at the melter. Refer to melter manual as needed.

Adjust the Module Stroke

Module stroke is the distance the armature must travel to open. The stroke is factory-set

at 0.38 mm (0.015 in.), which is recommended for most applications. However, module

stroke adjustment may be required if:

S A high-viscosity adhesive is used.

S The flow rate among several modules is not balanced.

Before adjusting the module stroke, keep the following in mind:

S Increasing the stroke distance over 0.61 mm (0.024 in.) results in poor operational

reliability.

S Decreasing the stroke distance below 0.18 mm (0.007 in.) can result in poor adhesive

flow or cutoff.