Electrical Troubleshooting - Graco Pro Xp 60 AA WB Instructions - Parts Manual

Electrical Troubleshooting

Troubleshooting
Electrical Electrical Troubleshooting
Problem Problem Problem
Poor wrap.
ES or Hz indicator is not lit.
Operator gets mild shock.
Operator gets shock from
workpiece.
Voltage/current display stays red
(smart guns only).
ES or Hz indicator is amber.
ES or Hz indicator is red.
Error display appears and Hz
indicator is red (Smart guns only).
3A2497H
Cause Cause Cause
ES On/Off switch is OFF (O).
Gun air pressure too low (ES
indicator is amber).
Atomizing air pressure too high.
Fluid pressure too high.
Incorrect distance from gun to part. Should be 8-12 in. (200-300 mm).
Poorly grounded parts.
Faulty gun resistance.
Fluid leaks from the fluid needle
packings and causes a short.
Faulty alternator.
ES On/Off switch is OFF (O).
No power.
Operator not grounded or is near
ungrounded object.
Gun not grounded.
Workpiece not grounded.
Gun is too close to the part being
sprayed.
Dirty gun.
Air turbine speed is too low.
Air turbine speed is too high.
Smart module has lost
communication with the power
supply.
Troubleshooting
Solution Solution Solution
Turn ON (I).
Check air pressure to gun;
minimum 45 psi (0.32 MPa, 3.2
bar) needed at gun for full voltage.
Decrease.
Decrease, or replace worn tip.
Resistance must be 100 ohms or
less. Clean workpiece hangers.
See
Test Gun Resistance, page
See Fluid Needle Replacement,
page 47.
See Alternator Removal and
Replacement, page 49.
Turn ON (I).
Check power supply, alternator,
and alternator ribbon cable. See
Power Supply Removal and
Replacement, page 48
Alternator Removal and
Replacement, page 49.
See Grounding, page 16.
See Check Gun Electrical
Grounding, page 26, and
Test Gun Resistance, page
Resistance must be 100 ohms or
less. Clean workpiece hangers.
Gun should be 8-12 in. (200-300
mm) from the part.
See Clean the Gun Daily, page
Increase air pressure until
indicator is green. To avoid
over-atomization, use the
atomizing air restrictor valve to
reduce the atomizing air to the air
cap.
Decrease air pressure until
indicator is green.
Check for good connections
between Smart Module and
power supply. See Smart Module
Replacement, page 53, and
Power Supply Removal and
Replacement, page 48.
36.
and
36.
33.
43