Operation; Filter The Fluid; Operating Checklist; Spraying Operation - Graco 218-026 Instructions-Parts List Manual

WARNING
Pressure Relief Procedure
To reduce the risk of serious bodily injury, including
splashing in the eyes or on the skin, injury from
moving parts or electric shock, always follow this
procedure when shutting off the system, when
checking or servicing any part of the spray system,
when installing, cleaning or changing fluid nozzles,
and whenever you stop spraying.
1. Turn the ES ON–OFF Valve lever to OFF.
2. Turn off the air and fluid supply to the gun.
3. Trigger the gun into a grounded metal waste
container to relieve fluid pressure.
4. Open the pump drain valve, having a waste
container ready to catch the drainage.
5. Leave the pump drain valve open until you are
ready to spray again.

Filter the Fluid

Filter the fluid to remove coarse particles and sediment
which could clog the spray nozzle.
3 in. (76 mm)
Square Cutout
Fig 3

OPERATION

Operating Checklist

Check the following list daily, before starting to operate
the system, to help ensure you of safe, efficient
operation.
1. Be sure all operators are properly trained to
safely operate an electrostatic air spray
system.
2. Be sure all operators are trained how to prop-
erly and completely relieve system pressure.
3. Be sure the system is thoroughly grounded.
See FIRE OR EXPLOSION HAZARD on
page 5, and Check the Electrical Grounding
on page 8.
4. Be sure the operator and all persons entering
the spray area are properly grounded by wear-
ing shoes with conductive soles or personal
grounding straps.
5. Operator must not wear gloves which insulate
the hand from the spray gun. If worn, gloves
must be conductive or modified as shown in
Fig 3.
6. Be sure ventilation fans are operating
properly.
7. Be sure the workpiece hangers are clean and
grounded. Contact points must be sharp
points or knife edges.
8. Be sure all refuse is removed from the spray
booth.
9. Be sure all flammable liquids in spray booth
are in approved, grounded containers.
10. Be sure all conductive objects within 20 ft
(6 m) of the gun are electrically grounded and
the floor of the spray area is electrically con-
ductive and grounded.

Spraying Operation

This gun has a built–in lead and lag operation. The gun
begins emitting air before the fluid is discharged. When
you release the trigger, the fluid stops before the air flow
stops. This helps prevent fluid buildup on the air cap.
When spraying, the ES indicator lights (BB) should glow,
indicating the electrostatic charge. See Fig 2.