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FIRE OR EXPLOSION HAZARD
Static electricity is created by the flow of fluid through the
pump and hose. If every part of the spray equipment is not
properly grounded, sparking may occur, and
the system may
become hazardous. Sparking may also occur when plugging
in
or unplugging a power supply cord. Sparks can
ignite fumes
from solvents and the fluid being sprayed, dust particles and
other flammable substances. whether you are spraying in-
doors or outdoors, and can cause a fire
or
explosion and
serious bodily injury and property damage. Do not plug in or
any chance of igniting fumes still in the air.
unplug any power supply cords in the spray area when there
IS
If you experience any sparking or feel even a slight shock,
STOP SPRAYING IMMEDIATELY.
Check for proper
"
8.
To maintain grounding continuity when flushing or reliev-
ing
pressure, always hold a metal part of the gun firmly to
the side of a grounded metal pail, then trigger the gun.
grounding of the entire system. Be sure you have corrected
the problem before starting to spray again.
To reduce the risk of static sparking, ground the sprayer and
Grounding
all other spray equipment used or located in the spray area.
structions for your area and type of equipment and be sure
to
CHECK your local electrical code for detailed grounding in-
ground all of this spray equipment:
1.
2.
3.
4.
5.
6.
7.
Pump: use ground wire and clamp as shown
in Fig 1.
Air and fluid hoses: use only grounded hoses with a max-
imum of
500
feet (150 m) combined hose length to en-
sure grounding continuity. Refer also to HOSE SAFETY.
Spray gun: obtain grounding through connection to a
properly grounded fluid hose and pump.
A i r compressor: follow the manufacturer's
recommendations.
Fluid supply container: according to loml code.
Object being sprayed: according to local code.
A
l
l solvent pails used when flushing, according to local
code. Use only metal pails, which are conductive placed
on a grounded surface. Do not place the pail on a non-
conductive surface, such
as
paper or cardboard, which
interrupts the grounding continuity.
To ground the pump, loosen'the grounding lug locknut (A)
and washer
IBI.
Insert one end of a 12 ga 11.5 mm' ) minimum,
ground wire
(Dl
into the slot in lug IC1 and tighten the locknut
securely.
See
Fig 1. Refer to page 10 for ordering a ground
wire and clamp. Connect the clamp end of the ground wire to
a true earth ground.
Before flushing, be sure the entire system and flushing pails
Flushing Safety
are properly grounded. Refer to Grounding,
to
the left.
remove the spray
t i p
from the gun. Always use the lowest
Follow the Pressure Relief Procedure on page 2, and
possible fluid pressure, and maintain firm metal-to-metal con-
tact between the gun and the pail during flushing to reduce
the risk of fluid injection injury. static sparking and splashing.
HOSE SAFETY
hose develops a leak. split or rupture due to any kind of wear,
High pressure fluid in the hoses can be very dangerous. If the
damage or misuse, the high pressure spray emitted from
it
can
muse a fluid injection injury
or
other serious bodily injury or
property damage.
ALL
FLUID HOSES MUST HAVE SPRING GUARDS ON
kinks or bends at or close to the coupling which can result in
BOTH ENDS1 The spring guards help protect
the hose from
hose rupture.
TIGHTEN all fluid connections securely before each use. High
pressure fluid can dislodge a loose coupling or allow high
pressure spray to be emitted from the coupling.
NEVER use a damaged hose. Before each use, check entire
hose for cuts, leaks, abrasion, bulging cover, or damage or
movement of the hose couplings. If any of these conditions
exist, replace the hose immediately.
DO
NOT recouple high
pressure hose. Never use tape
or any device to try to mend the
hoses: it cannot contain the high pressure fluid.
hoses
to
move equipment.
Do
not use fluids or solvents which
HANDLE AND ROUTE HOSES CAREFULLY. Do not pull on
are not compatible with the inner tube and cover of the hose.
DO
NOT exoose Graco hose
to
temoeratures above 1 W F
Hose Grounding Continuity
Proper hose grounding continuity is essential
to
maintaining a
grounded spray system. Check
the electrical resistance of your
air
and fluid hoses at least once a week.
If your
hose does not
have a tag on it which specifies the maximum electrical
maximum resistance limits. Use a resistance meter in the ap-
resistance, contact the hose supplier or manufacturer for the
propriate range for your hose
to
check the resistance. If the
resistance exceeds the recommended limits, replace it im-
your system hazardous. Also, read FIRE
OR
EXPLOSION
mediately. An ungrounded or poorly grounded hose can
make
HAZARD, above.
MOVING PARTS HAZARD
The piston in the air motor, located behind the air motor
shield, moves when air is supplied to the motor. Moving parts
can pinch or amputate your fingers or other body parts.
Therefore, NEVER operate the pump with the air motor shield
removed. KEEP CLEAR of moving parts when starting or
operating the pump. Before checking or selvicing the pump,
follow the Pressure Relief Procedure on page 2
to
prevent
the pump from starting accidentally.
IMPORTANT
ticularly the General Standards, Part 1910, and the Construction Standards, Part 1926-should be consulted.
United States Government safety standards
have been adopted under the Occupational Safety and Health
Act. These standards-par-
m 7 - 4 8 8
3
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