5
EQUIPMENT MISUSE HAZARD
General Safety
Any misuse of the spray equipment or accessories, such as
overpressurizing, modifying parts, using incompatible chemicals and flu-
ids, or using worn or damaged parts, can cause them to rupture and result
in fluid injection, splashing in the eyes or on the skin, or other serious bod-
ily injury, or fire, explosion or property damage.
NEVER alter or modify any part of this equipment; doing so could cause it
to malfunction.
CHECK all spray equipment regularly and repair or replace worn or dam-
aged parts immediately.
Always wear protective eyewear, gloves, clothing and respirator as rec-
ommended by the fluid and solvent manufacturer.
System Pressure
NEVER exceed the recommended working pressure or the maximum air
inlet pressure stated on your pump or in the
TECHNICAL DATA
on
pages 21–25.
Be sure that all spray/dispensing equipment and accessories are rated to
withstand the maximum working pressure of the pump. DO NOT exceed
the maximum working pressure of any component or accessory used in
the system.
Fluid Compatibility
BE SURE that all fluids and solvents used are chemically compatible with
the wetted parts shown in the
TECHNICAL DATA
on pages 21–25. Al-
ways read the manufacturer’s literature before using fluid or solvent in
this pump.
HOSE SAFETY
High pressure fluid in the hoses can be very dangerous. If the hose devel-
ops a leak, split or rupture due to any kind of wear, damage or misuse, the
high pressure spray emitted from it can cause a fluid injection injury or
other serious bodily injury or property damage.
ALL FLUID HOSES USED WITH A FLEXING MOTION MUST HAVE
SPRING GUARDS ON BOTH ENDS!
The spring guards help protect
the hose from kinks or bends at or close to the coupling which can result
in 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 the 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 try to recouple high pressure hose or mend it with tape or any
other device. A repaired hose cannot safely contain the high pressure
fluid.
HANDLE AND ROUTE HOSES CAREFULLY
. Do not pull on hoses to
move equipment. Do not use fluids which are not compatible with the in-
ner tube and cover of the hose. DO NOT expose Graco hoses to tem-
peratures above 82
_
C (180
_
F) or below –40
_
C (–40
_
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 speci-
fies the maximum electrical resistance, contact the hose supplier or
manufacturer for the maximum resistance limits. Use a resistance meter
in the appropriate range for your hose to check the resistance. If the resis-
tance exceeds the recommended limits, replace it immediately. An un-
grounded or poorly grounded hose can make your system hazardous.
Also, read
FIRE OR EXPLOSION HAZARD
, below.
FIRE OR EXPLOSION HAZARD
Static electricity is created by the high velocity 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 spray-
ing indoors or outdoors, and can cause a fire or explosion and serious
bodily injury and property damage. Do not plug in or unplug any power
supply cords in the spray area when there is any chance of igniting fumes
still in the air.
If you experience any static sparking or even a slight shock while using
this equipment,
STOP SPRAYING IMMEDIATELY.
Check the entire sys-
tem for proper grounding. Do not use the system again until the problem
has been identified and corrected.
To ground the pump:
To ground the pump, loosen the grounding lug locknut (A) and
washer (B). Insert one end of a 1.5 mm
@
(12 ga) minimum ground
wire (D) into the slot in lug (C) and tighten the locknut securely. See
Fig 1. Connect the other end of the wire to a true earth ground. See
ACCESSORIES
on page 18 to order a ground wire and clamp.
Fig 1
A
D
B
C
Grounding
To reduce the risk of static sparking, ground the pump, object being
sprayed, and all other spray equipment used or located in the spray area.
CHECK your local electrical code for detailed grounding instructions for
your area and type of equipment. BE SURE to ground all of this spray
equipment:
1.
Pump: use a ground wire and clamp. See Fig 1.
2.
Air hoses: use only grounded air hoses.
3.
Fluid hoses: use only grounded fluid hoses.
4.
Air compressor: follow manufacturer’s recommendations.
5.
Spray gun: grounding is obtained through connection to a properly
grounded fluid hose and pump.
6.
Fluid supply container: according to your local code.
7.
Object being sprayed: according to your local code.
8.
All solvent pails used when flushing, according to your local code.
Use only metal pails, which are conductive, placed on a grounded
surface. Do not place the pail on a nonconductive surface, such as
paper or cardboard, which interrupts the grounding continuity.
9.
To maintain grounding continuity when flushing or relieving pres-
sure, always hold a metal part of the spray gun firmly to the side of a
grounded
metal pail, then trigger the spray gun.
Flushing Safety
Before flushing, be sure the entire system and flushing pails are properly
grounded. Refer to
Grounding
, above. Follow the
Pressure Relief
Procedure
on page 4, and remove the spray tip/nozzle from the spray
gun. Always use the lowest possible fluid pressure, and maintain firm
metal–to–metal contact between the spray gun and the pail during
flushing to reduce the risk of fluid injection injury , static sparking and
splashing.
IMPORTANT
United States Government safety standards have been adopted under the Occupational Safety and Health Act. These standards – particularly the Gen-
eral Standards, Part 1910, and the Construction Standards, Part 1926 – should be consulted.
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