Electrical Tests
The performance of the spray gun is directly affected
by the condition of the electrical components contained
inside the gun. The electrical tests at right and on page
28 can be used to determine the condition of the
power supply (40) and the resistor stud (15) as well as
the continuity of the electrical path between the com-
ponents.
Use megohmmeter P/N 218–979 (L) and an applied
voltage of 500 volts to complete these electrical tests.
Connect the leads as shown.
Remove the gun from the manifold and bracket, as
instructed on page 29, before performing the electrical
tests.
FIRE, EXPLOSION, AND
ELECTRIC SHOCK HAZARD
To reduce the risk of sparking, which
could cause a fire, explosion, or electric
shock and result in a serious injury, do
not use the megohmmeter in the hazard-
ous area. Remove the gun from the haz-
ardous area before testing the gun.
WARNING
Test Gun Resistance
(See Fig. 16)
Measure the resistance between the end of the elec-
trode (13) and the gun body (29). The resistance
should be between 329 to 401 megohms. If the resis-
tance is outside the specified range, go to the next
test. If the resistance is correct, refer to
Electrical
Troubleshooting on page 26 for other possible
causes of poor performance.
03217
Fig. 16
13
L
29
