Graco 3A2495C Manual De Usuario
Troubleshooting
Electrical Troubleshooting
Problem
Cause
Solution
ES On/Off switch is OFF (O).
Turn ON (I).
Gun air pressure too low (ES
indicator is amber).
Check air pressure to gun;
minimum 45 psi (0.32 MPa, 3.2
bar) needed at gun for full voltage.
Atomizing air pressure too high.
Decrease.
Fluid pressure too high.
Decrease, or replace worn tip.
Incorrect distance from gun to part. Should be 8-12 in. (200-300 mm).
Poorly grounded parts.
Poorly grounded parts.
Resistance must be 1 megohm or
less. Clean workpiece hangers.
Faulty gun resistance.
See
.
Low fluid resistivity.
See
Fluid leaks from the fluid needle
packings and causes a short.
See
.
Poor wrap.
Faulty alternator.
See
.
ES On/Off switch is OFF (O).
Turn ON (I).
ES or Hz indicator is not lit.
No power.
Check power supply, alternator,
and alternator ribbon cable. See
and
.
Operator not grounded or is near
ungrounded object.
See
Operator gets mild shock.
Gun not grounded.
See
, and
.
Operator gets shock from
workpiece.
Workpiece not grounded.
Resistance must be 1 megohm or
less. Clean workpiece hangers.
3A2495C
37