Graco HYDRA-SPRAY EM 400 Instructions-Parts List Manual page 3

Always be sure all equipment and objects being sprayed
are properly grounded. The high velocity flow of fluid
This unit has a 3-prong grounding plug to protect you
creates static electricity. Sparks may cause fire or ex-
from electric shock. Be sure to plug the unit into a pro-
plosion.
perly grounded outlet that will accept the 3-prong plug.
Do not remove the third prong.
Use only conductive or grounded air and fluid hoses for
airless applications. Be sure gun is grounded through
hose connections.
The green wire of electric cord is connected to the unit
chassis and motor frame and the other two wires are
connected to the switch motor for grounding continuity.
Use only conductive or grounded fluid hoses for airless
applications. Be sure that gun is grounded through hose
connections.
Once each week, check electrical resistance of hose
(when using multiple hose assemblies, check overall
resistance). Overall (end to end) resistance of un-
pressurized hose must not exceed 29 megohms (max.)
for any coupled length or combination of hose lengths.
If hose exceeds these limits, replace it immediately.
Never exceed 500 ft (150 m) overall combined hose
length.
Plug into an outlet at least 20 ft (6m) from the area
where you are spraying. If you use an extension cord, it
must have 3 wires of at least 12 gauge (2.5 mm21 and
should not be over 100 ft (30.3 m) long.
When flushing equipment, remove spray tip, use the
lowest possible pressure, and maintain firm metal to
metal contact between gun and metal waste container.
This reduces the chance of static sparking.
Follow the coating and solvent manufacturer's safety
precautions and warnings.
Before removing any part for cleaning or servicing,
always disconnect power source and carefully relieve
fluid pressure by triggering spray gun, engaging trigger
safety and any other equipment safety locks, and open-
ing any drain or bleeder valves. Leave drain valve open
during servicing. Remove tip from gun for cleaning.
IMPORTANT
United States Government safety standards have been adopted under the Occupational Safety and Health Act. These
standards
- particularly the General Standards, Part 1910, and the Construction Standards, Part 1926 - should be
consulted in connection with your use of airless spray equipment.