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Maintenance
5-8
Part 237478_03
E 2012 Nordson Corporation
Inspecting the Gun Wiring
1. Relieve hydraulic pressure. Refer to the Relieving Hydraulic Pressure in
Installation.
2. Ensure that the gun trigger safety is in the LOCKED position.
3. Move the applicator circuit breaker to the OFF position, then disconnect
and lock out input electrical power to the applicator (see Figures 5‐1 and
5‐2).
4. Remove the six screws (three screws per side) from the service block,
then remove the service block cover.
5. Inspect all wiring for signs of wear or other damage to the insulation.
WARNING! Risk of electrical shock. Vibration, plus heating and cooling
cycles, can loosen connections. Failure to observe may result in personal
injury or death. All electrical connections should be tight.
6. Check all electrical connections for tightness.
Figure 5‐7 Service Block Cover
Screws
1. Cover screws
Cleaning the System
When changing adhesives, use only recommended material manufacturing
products and properly clean and flush the hot melt system by following the
cleaning and flushing instructions in the applicator product manual. Always
check with your material suppliers to obtain therecommended flushing
methods for their products.
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