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Bleed· Type AIr Shutoff Valve and fluid Drain
Valve Required
These
two
accessories are required in your system to help
reduce the risk of serious bodily injury, including splashing in
the eyes and injury from moving parts if you are adjusting or
repairing the pump.
The bleed-type air shutoff valve relieves air trapped between
this valve and the pump after the air regulator is shut off. Trap-
All parts of the electrostatic spray system must be properly
grounded to reduce the risk of static electricity discharge.
Static electricity is created by the high velocity flow of fluid
through the pump and hose and the spray gun's
power supply. Ungrounded objects can become electrically
charged and sparking may occur. Sparks can ignite fumes
from solvents, fluid being sprayed, dust particles and other
flammable substances, which can cause a fire or explosion
and result in serious bodily injury and property damage.
If you experience any sparking or feel even a slight shock,
STOP SPRA YING IMMEDIA TEL Y. Check for proper ground-
ing of the entire system. Be sure you have corrected the prob-
lem before starting to spray again.
The minimum spraying distance from the gun tip to the
workpiece is 100 mm (4 in.). Holding the gun any closer to the
workpiece will cause sparking.
Grounding
The following are minimum requirements for grounding a
basic electrostatic system. Your system may include other
equipment or objects which must also be grounded. Always
check your local electrical code for detailed grounding instruc-
tions. Be sure your system is connected to a true earth
ground.
1. Pump: ground by using a ground wire and clamp as
described in your separate pump instruction manual.
2. Air compressors: ground according to the manufacturer's
recommendations.
3. High voltage power supplies: must be properly grounded
and located outside the spray area. Ground according to
the manufacturer's recommendations.
4. High voltage cable: obtain grounding through connection
of an undamaged cable to a properly grounded power
supply.
5. All electric cables going to the power supply must be pro-
perly grounded.
6. Spray gun: obtain grounding through connection to pro-
perly grounded high voltage cable.
7. Object being sprayed: keep the workpiece hangers clean
and grounded at all times. Contact points must be sharp
points or knife edges.
pad air can cause the pump to cycle unexpectedly. Locate the
valve within easy reach of the pump.
The fluid drain valve assists in relieving fluid pressure in the
displacement pump, hose and gun; triggering the gun to
relieve pressure may not be sufficient.
8. All electrically conductive objects or devices, in the spray
area, including paint containers and wash cans, must be
properly grounded.
9. All persons entering the spray area: shoes must have con-
ductive soles, such as leather, or personal grounding
straps must be worn. Rubber or plastic soles are not con-
ductive.
10. The floor of the spray area must be electrically conductive
and grounded. Do not cover the floor with cardboard or
any non-conductive material which would interrupt
grounding continuity.
11. Flammable liquids in the spray area must be kept in
approved, grounded containers. Do not store more than
the quantity needed for one shift.
12. All solvent pails: use only grounded metal pails, which are
conductive. Do not place the pail on any non-conductive
surface, such as cardboard or paper, which would inter-
rupt grounding continuity.
flushing and Cleaning Safety
To reduce the risk of static sparking or splashing, always
follow the Pre •• ure Renef Procedure on page 2, and
remove the fluid tip before flushing. Use the lowest possible
pressure and use a grounded metal waste container.
Be sure the high voltage power supply is OFF during flushing.
NEVER use solvents having a flash point of less than 21°C
(70
0
F) to clean the gun. NEVER use solvents having a flash
point of less than 38°C (100
0
F) to clean the spray system.
AL WAYS remove all solvent from the system before reac-
tivating the spray gun.
Use only non-sparking tools to clean residue from the booth
and hangers.
Ventilate the Spray Booth
To prevent hazardous concentrations of toxic and/or flam-
mable vapors, spray only in a properly ventilated spray booth.
The High Voltage Power Supply must be electrically interlock-
ed with the ventilators to prevent operation of the Power Sup-
ply unless ventilating fans are operating.
NEVER operate the spray gun unless the ventilating fans are
operating.
IMPORTANT
United States Government safety standards have been adopted under the Occupational Safety and Health Act. These standards - par-
ticularly the General Standards, Part 1910.107 and any other appropriate regulations-should be consulted in connection with the in-
stallation, operation and maintenance of electrostatic spray painting equipment.
307-896
3
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