Ransburg 9040 Classic HV Power Supply 77070-33 - Manual (Page 30)

CP-08-01 2 7 2 7 2 7 2 7 2 7
9040 Classic HV Power Supply - Maintenance
No kV Output at No kV Output at No kV Output at No kV Output at No kV Output at
Spray Applicator
Spray Applicator Spray Applicator Spray Applicator Spray Applicator
and High Voltage
and High Voltage and High Voltage and High Voltage and High Voltage
ON Indicator (Red
ON Indicator (Red ON Indicator (Red ON Indicator (Red ON Indicator (Red
LED) is Not Lit
LED) is Not Lit LED) is Not Lit LED) is Not Lit LED) is Not Lit
Power Supply Power Supply Power Supply Power Supply Power Supply
Overloads
Overloads Overloads Overloads Overloads
Excessively
Excessively Excessively Excessively Excessively
Component Not Component Not Component Not Component Not Component Not
Working, but kV
Working, but kV Working, but kV Working, but kV Working, but kV
Output OK
Output OK Output OK Output OK Output OK
1. Connector 6PL not properly
plugged into PC board
2. Improper air signal to high voltage
trigger device (air flow switch,
pressure switch, etc.)
3. Defective high voltage trigger
device (flow switch, pressure
switch, etc.) or wiring
4. Main PC board defective
1. Parts are too close to the spray
applicator
2. Overload set point set too sensitive
3. Defective spray applicator
4. Defective high voltage cable
5. Main PC board defective
6. Defective high voltage multiplier
1. Wiring to/from component loose
or broken
2. Defective component
General Problem General Problem General Problem General Problem General Problem Possible Cause Possible Cause Possible Cause Possible Cause Possible Cause Solution Solution Solution Solution Solution
1. Properly attach connector.
2. Turn signal on and adjust to proper setting.
3. Short PC board jumper JP4. If high voltage
comes on, replace high voltage trigger device
or repair wiring from trigger device to PC board.
4. Replace main PC board.
1. Ensure sufficient distance between spray
applicator and parts.
2. Adjust PC board potentiometer 1 turn counter-
clockwise to make less sensitive. Repeat if
necessary.
3. Disconnect high voltage cable from spray
applicator and test in open air, at least 1-foot
from surrounding objects. If overload goes
away, check spray applicator for cause.
(Warning: Contact end of cable will be at
(Warning: Contact end of cable will be at (Warning: Contact end of cable will be at (Warning: Contact end of cable will be at (Warning: Contact end of cable will be at
high voltage; after testing, discharge
high voltage; after testing, discharge high voltage; after testing, discharge high voltage; after testing, discharge high voltage; after testing, discharge
contact by contacting to ground before
contact by contacting to ground before contact by contacting to ground before contact by contacting to ground before contact by contacting to ground before
touching!)
touching!) touching!) touching!) touching!)
4. Test power supply with high voltage cable
removed. If overload goes away, replace the
high voltage cable.
5. Place PC board jumper JP5 over pins 1 and 2
(overload OFF) and test. If power supply
overloads, replace main PC board.
6. If 1 thru 5 above are OK, replace the high
voltage multiplier.
1. Repair loose or broken wire.
2. Replace component.
TROUBLESHOOTING GUIDE (Cont.) TROUBLESHOOTING GUIDE (Cont.) TROUBLESHOOTING GUIDE (Cont.) TROUBLESHOOTING GUIDE (Cont.) TROUBLESHOOTING GUIDE (Cont.)
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