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Installation
14 309295
Check Electrical Grounding
1. Have a qualified electrician check the electrical
grounding continuity of the spray gun and air hose.
2. Turn the ES ON/OFF valve OFF.
3. Turn off the air and fluid supply to the gun. The
fluid hose must not have any fluid in it.
4. Make sure the grounded air hose (R) is connected
and the hose ground wire is connected to a true
earth ground.
5. Measure the resistance between the gun handle (BB)
and a true earth ground (CC). Use an applied volt-
age of 500 minimum to 1000 volts maximum. The
resistance should not exceed 1 megohm. See Fig. 3.
6. If the resistance is greater than 1 megohm, check the
tightness of the ground connections and be sure the
air hose ground wire is connected to a true earth
ground. If the resistance is still too high, replace the
air hose.
Fig
.
1
.
Fig. 3. Check Gun Grounding
WARNING
Fire, Explosion, and Electric Shock
Hazard
Megohmmeter Part No. 241079 (AA-see
Fig. 3) is not approved for use in a hazard-
ous area. To reduce the risk of sparking, do
not use the megohmmeter to check electri-
cal grounding unless:
•
The gun has been removed from the haz-
ardous area;
•
Or all spraying devices in the hazardous
area are turned off, ventilation fans in the
hazardous area are operating, and there
are no flammable vapors in the area
(such as open solvent containers or
fumes from spraying).
Failure to follow this warning could cause
fire, explosion, and electric shock and result
in serious injury and property damage.
I O
ES
ti1337a
ti1259a
ti1340a
AA
BB
CC