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308-0843
FIRE, EXPLOSION, OR ELECTROSTA
TIC SHOCK HAZARD
To reduce the risk of fire, explosion, or electrostatic shock,
which
may result from electrical discharge, it is essential that:
S
All parts of the electrostatic system are properly grounded.
S All personnel in or close to the spray area are properly
grounded.
S All
electrically conductive objects or devices in the spray area,
including
paint containers, wash
cans and tools, are properly
grounded.
When operating the electrostatic device, any ungrounded
objects in the spray area (such as people, containers, tools,
etc.)
can become electrically charged. Arcing may
occur if these
objects
then come in contact or close to ground. Arcing of suf
fi-
cient energy levels can ignite the fluid being sprayed, fumes
from
solvents, dust particles, and other flammable substances.
This
can cause a fire, explosion, or electrostatic
shock and re
-
sult
in serious bodily injury and property damage.
Static electricity can also be generated by the flow of fluid
through the pump, hose, gun, and nozzle, but it is dissipated
through
proper grounding as described in
Grounding
below
.
If
you experience any arcing or feel even a slight shock,
STOP
SPRAYING
IMMEDIA
TELY
. Check for proper grounding of the
entire
system. Be sure you
have corrected the problem before
starting
to spray again.
Grounding
The
following are minimum requirements for grounding a basic
electrostatic
system. Y
our system may include other
equipment
or objects which must also be grounded. Always check your
local
electrical code for detailed grounding instructions. 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 and hydraulic power supplies:
ground
according
to the manufacturer
’
s recommendations.
3.
Electrostatic
Air Spray
Gun:
obtain grounding through con
-
nection
to a properly grounded air supply hose. Use only the
Graco Electrically Conductive Air Supply Hose; see
ACCESSORIES section to order . Connect the air hose
ground
wire to a true earth ground.
4.
Object being sprayed:
keep the work piece hangers clean
and grounded at all times. Contact points must be sharp
points
or knife edges.
5.
All electrically conductive objects or devices
in the spray
area, including paint containers and wash cans, must be
properly
grounded.
6.
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 conductive.
7.
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.
8.
Flammable liquids
in the spray area must be kept in
approved,
grounded containers. Do not store more than
the
quantity
needed for one shift.
9.
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 interrupt
grounding
continuity
.
10.
All air and fluid lines and electric cables
must be properly
grounded.
Flushing and Cleaning Safety
To
reduce the risk of static
sparking or splashing, always follow
the
Pressure Relief Procedure
on page 2 before flushing.
Be
sure the turbine air (electrostatics) is
OFF before flush
-
ing
or cleaning any part of the spray system.
Use
the lowest possible pressure to flush. T
rigger the gun into
a
grounded
metal waste container
.
To
flush or purge
equipment,
ALWA
YS use solvents with a flash
point
equal to or greater than that of the fluid being sprayed.
To clean the exterior of the equipment,
ALWAYS use solvents
with
a flash point of higher than 100
_
F (38
_ C).
ALWAYS
remove all solvent from the system before reactivating
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
flammable
vapors,
spray only in a properly ventilated spray booth.
Check
and follow all National, State and Local codes regarding
air exhaust velocity requirements. Check and follow all local
safety
and fire codes and OSHA standard 1910.107.
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––particularly the
General Standards, Part 1910.107 and any other appropriate regulations––should be consulted in connection with the installation, operation, and
maintenance of electrostatic spray painting equipment.