Graco WB100, Instructions-Parts List Manual

Page: 8 / 112

Gun Overview
Gun Gun Gun Overview Overview Overview
How How
How the
the
the Electrostatic
Electrostatic
Electrostatic Spray
Spray
Spray Gun
Gun
Gun
Works Works
Works
The air hose supplies air to the spray gun. Part of the
air operates the alternator turbine and the rest of the
air atomizes the fluid being sprayed.
The alternator generates power, which is converted
by the power cartridge to supply high voltage to the
gun’s electrode.
The pump supplies fluid to the fluid hose and gun,
where the fluid is electrostatically charged as it
passes the electrode. The charged fluid is attracted
to the grounded workpiece, wrapping around and
evenly coating all surfaces.
Spraying Spraying
Spraying Waterborne
Waterborne
Waterborne Fluids
Fluids
Fluids
Electrostatically Electrostatically
Electrostatically
This electrostatic air spray gun is designed to spray
only
only only waterborne fluids which meet the following
flammability requirements:
• FM, FM, FM, FMc FMc FMc Approved: Approved: Approved:
Material does not sustain burning in accordance
with the Standard Test Method for Sustained
Burning of Liquid Mixtures, ASTM D4206.
• CE-EN CE-EN CE-EN 50059 50059 50059 Compliant: Compliant: Compliant:
Materials which cannot be ignited, in any mixture
with air, by an energy source of less than 500mJ.
When connected to a voltage isolation system,
all of the fluid in the spray gun, fluid hose, and
isolated fluid supply is charged to high voltage,
which means that the system has more electrical
energy than a solvent-based system. Therefore,
only non-flammable fluids (as defined under
Models, page 3 ) can be sprayed with the system or
be used to clean, flush, or purge the system.
Precautions must be taken when using electrostatic
waterborne equipment to avoid potential shock
hazards. When the spray gun charges the isolated
fluid to high voltage, it is similar to charging a
capacitor or a battery. The system will store some of
the energy while spraying and retain some of that
energy after the spray gun is shut off. Do not touch
the gun nozzle or come within 4 in. (102 mm) of
the electrode until the stored energy is discharged.
The amount of time it takes to discharge the
energy depends on the system design. Follow the
Fluid Voltage Discharge and Grounding Procedure,
page 39
, before approaching the front of the gun.
NOTE: NOTE: NOTE: The Graco warranty and approvals are
void if the electrostatic spray gun is connected to a
non-Graco voltage isolation system or if the gun is
operated above 60 kV.
8 3A2496H