Graco 236-030 Instructions-Parts List Manual page 25

Electrical Troubleshooting
PROBLEM
Operator gets shock
Operator gets shock when
touching workpiece
Lower than normal voltage
output
Higher than normal voltage
output
CAUSE
Operator not properly grounded or is
near an ungrounded object
Gun not properly grounded
Workpiece not properly grounded.
Faulty gun resistance
Insufficient air to the turbine
alternator
Faulty turbine alternator
Improper distance between gun and
workpiece
Fluid resistivity too low
Dirty gun
Faulty gun resistance
Faulty gun resistance
Fluid resistivity higher than normal
SOLUTION
Be sure floor is properly grounded; Wear
shoes with conductive soles or wear
personal grounding straps; Be sure op-
erator is not in contact with or carrying
any metallic items which could build up
electrical charge; If worn, a glove must
be conductive or modified as shown on
page 9
See Check the Electrical Grounding,
on page 12
Clean workpiece hangers; Check for
proper ground on conveyor or track
Check gun resistance; See page 26
Increase air pressure to the gun
Replace turbine alternator; See page 37
Adjust spraying distance to 8 to 12
inches (203–305 mm)
Check fluid resistivity with paint meter
and probe
Clean gun
Check gun resistance; See page 26
Check gun resistance; See page 26
Check fluid resistivity with paint meter
and probe