Operation; Operating Checklist; Fluid Voltage Discharge And Grounding; Procedure - Graco WB3000 Instructions - Parts Manual

Operation

Operating Checklist

Check the following list daily, before starting the
system.
⃞
All operators are properly trained to operate
an electrostatic waterborne air-assisted spray
system as instructed in this manual.
⃞
All operators are trained in the
Pressure Relief Procedure, page
⃞
The electrostatics are turned off and system
voltage is discharged according to the

Fluid Voltage Discharge and Grounding

Procedure, page
ters the isolation enclosure, before cleaning,
and before performing any maintenance or
repair.
⃞
The system is grounded according to the
instructions in Grounding, page
⃞
The Graco waterborne fluid hose is in good
condition with no cuts or abrasions of the
inner layer. Replace hose if damaged.
⃞ Ventilation fans are operating properly.
⃞
All debris, including flammable fluids and
rags, is removed from the spray area.
⃞ Fluids used must meet the following
flammability requirements:
• FM, FMc Approved:
Material does not sustain burning in
accordance with the Standard Test Method
for Sustained Burning of Liquid Mixtures,
ASTM D4206.
• CE-EN 50059 Compliant:
Materials which cannot be ignited, in any
mixture with air, by an energy source of
less than 500mJ.
3A2497C
26.
25, before any person en-
21.
Fluid Voltage Discharge and
Grounding Procedure
The fluid supply is charged with high voltage until
the voltage is discharged. Contact with the charged
components of the voltage isolation system or
spray gun electrode will cause an electric shock.
To avoid an electric shock, follow the Fluid Voltage
Discharge and Grounding Procedure:
• whenever you are instructed to discharge the
voltage
• before cleaning, flushing, or servicing the system
equipment
• before approaching the front of the gun
• or before opening the isolation enclosure for the
isolated fluid supply.
1. Turn the ES ON/OFF valve OFF and wait 30
seconds, to allow the voltage to discharge
through the bleed resistor.
2. Fully unscrew the door T-handle locking screw.
This will shut off the air to the gun and trigger the
grounding cylinder to discharge any remaining
electrical charge.
3. Use the grounding rod to touch the pump
and supply pail. If you see any arcs, see
Electrical Troubleshooting, page
Operation
45.
25