Pump enable key
Pump mode key
Maintenance
5-3
Part 1120277_01
E 2012 Nordson Corporation
Relieving System Pressure
Before disconnecting any hydraulic fitting or opening any pressurized port,
always complete the following procedure to safely relieve hydraulic pressure
that may be trapped inside the melter, hoses, and guns.
To relieve system pressure
1. Press the Pump enable key to stop the pump.
2. Trigger the guns until hot melt no longer flows from the guns.
Locking Out External Communications
WARNING! Disable external inputs and fieldbus communcations with the
melter before performing maintenance. Failure to disable external inputs or
fieldbus communications with the melter can result in personal injury due to
unexpected operation of the melter while performing maintenance.
To lockout external communications with the melter
1. Ensure that the Pump mode key LED is on.
2. Set the control option for parameter 14 to 1 (enabled).
3. When the service activity is complete, return parameter 14 to
0(disabled).
Refer to Setting Up the Melter in Section 3, Installation, for information about
changing operating parameters.