
Static electricity is created by the high velocity flow of fluid
through the pump and hose. If every part of the spray equip-
ment is not properly grounded, sparking may occur, and the
system rnay become hazardous. Sparking rnay also occur
when plugging
in
or unpluggmg 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 indoors or outdoors, and can cause a fire or ex-
plosion and serious bodily injury and propetty damage. Do not
when there is any chance of igniting fumes still
in
the air.
plug
in
or unplug any power supply cords in the spray area
To reduce the risk of static sparking, ground the pump and a11
Grounding
other components used or located in the spray area. CHECK
your local electrical code for detailed grounding instructions
for your area and type of equipment and be sure to ground all
of these components:
1.
Pump:
use ground wire and clamp as shown
in
Fig 1.
2.
Air and
fluid
hoses: use only grounded hoses with a max-
imum of
500
feet (150 ml combined hose length to en-
sure grounding continuity. Refer to Hose Grounding
Continuity.
3.
Air compressor: follow the air compressor manufacturer’s
recommendations.
4.
Spray
gun:
obtain grounding through connection to a
properly grounded fluid hose and pump.
5.
Object being sprayed: according to local code.
6.
All solvent pails used when flushing, according to local
code. Use only metalpails, which are conductive. Do not
place the pail on a non-conductive surface, such as paper
or cardboard, which interrupts the grounding continuity.
7.
To
maintain grounding continuity when flushing or reliev-
ingpressure, always hold a metal part of the gun
firmly
to
the side of a metal
pail,
then trigger the gun.
Fig
1
To ground the pump, loosen the grounding lug locknut IAI
and washer (81. Insert one end of a 12 ga
(1.5
mm21 and
minimum ground wire (Dl into the slot in lug
IC1
and tighten
the locknut securely. See Fig
1.
Connect the other end of the
wire to a true earthen ground. Refer
to
page
8
to
order a
ground wire and clamp.
Before flushing, be sure the entire system and flushing pails
Flushing
Safety
are properly grounded. Refer to Grounding. above. Follow
the Pressure Relief Procedure on page
2,
and remove the
spray
tip
from the
gun.
Always use the lowest possible fluid
the gun and the pail during flushing to reduce the risk of injec-
pressure, and maintain firm metal-to-metal contact between
tion injury, static sparking and splashing.
HOSE SAFETY
hose develops a pinhole leak, split or rupture due to any kind
High pressure fluid in the hoses can be very dangerous. If the HANDLE AND ROUTE HOSES CAREFULLY. Do not pull on
hoses to move equipment. Do not use fluids or solvents
which
of wear, damage or misuse, the high pressure spray emitted are not compatible with the inner tube and cover of the hose.
jury or propetty damage.
from
it
can cause en injection injury or other serious bodily in- DO NOT expose Graco hoses to temperatures above 180°F
ALL FLUID HOSES MUST HAVE SPRING GUARDS1 The
Hose
Grounding
Continuity
spring guards help protect the hose from kinks or bends at or
close to the coupling which can result
in
hose rupture.
Proper hose grounding continuity is essential to maintaining a
grounded spray system. Checkthe electrical resistance
of
your
TIGHTEN all fluid connections securely before each use. High
air
and fluid hoses at least once
a
week. If your hose does not
have
a
tag on
it
which specifies the electrical resistance, con-
pressure fluid can dislodge a loose coupling or allow high tact the hose supplier or manufacturer for the resistance
pressure spray to be emitted from the coupling. limits. Use a voltage meter
in
the appropriate range for your
hose to check the resistance. If the resistance exceeds the
tire hose for cuts, leaks, abrasion, bulging cover, or damage or
NEVER use
a
damaged hose. Before each use,
check the en- recommended limits, replace
it
immediately. An ungrounded
or poorly grounded hose can make your system hazardous.
movement of the hose couplings. If any of these conditions
Also,
read FIRE
OR
EXPLOSION HAZARD above.
exist, replace the hose immediately. DO NOT try to recouple
high pressure hose or mend
it
with tape or any other device. A
repaired hose cannot contain the high pressure fluid.
182°Cl or below -40°F
(-4YCl.
MOVING
PARTS HAZARD
body parts. KEEP CLEAR of moving parts when starting or
Moving parts can pinch or amputate your fingers or other putating your fingers on moving parts in the air motor. Before
checking or servicing the pump, always disconnect the power
operating the pump. NEVER operate the pump with the air source and relieve pressure, following the Pressure Relief
motor shield removed to reduce the risk of pinching or am- Procedure on page
2,
to prevent the pump from starting ac-
cidentally.
IMPORTANT
United States Government safety standards have been adopted under the Occupational Safety and Health Act. These standards-par.
ticularly the General Standards, Pan 1910, and the Construction Standards, Part 1926-should be consulted.
307-051
3