Ransburg Turbodisk Applicator Assembly A11376 - Manual (Page 28)

Turbodisk Applicator - Maintenance
23
TROUBLESHOOTING GUIDE
General Problem Cause Solution
Fluctuating Pattern 1. Not enough back
pressure on regulator
1. Part hangers, hooks, are
not clean
1. Low voltage
2. Disk RPM to high
3. Booth flow to high
4. Disk edge to part
distance to great
1. Dirty high voltage contacts
1. Target distance to close
2. Conductive paint
3. Fairing dirty
4. High voltage cable break-
down
5. Fluid tube pinholed to
ground on conductive
paint
systems
6. Isolation mounting rod
dirty or carbon tracked
1. Power supply
2. Faulty high voltage switch
or junction tank
3. High voltage cable
1. See regulator manual for diagnosis.
1. a. Clean hangers.
b. Check ground continuity. (Must be less
than 1 Megohm.)
1. Check disk voltage with high voltage probe.
2. Slow disk speed.
3. Reduce booth air flow.
4. Decrease conveyor loop diameter.
1. Clean and/or replace.
1. Check target distance. Ideal target distance is
12-inches minimum.
2. Solventbase paint conductivity should be
between .05 and 20 megohms on Ransburg
Paint Test Meter.
3. Clean with nonpolar solvent.
4. Replace cable.
5. Check tubing routing for areas where fluid tube
comes near a ground.
6. Clean with nonpolar solvent or replace.
Use the following procedure to isolate problem:
- Verify power supply output. Refer to power
supply manual for procedure.
- Remove the fairing and measure input voltage
to the rotator assembly by removing the high
voltage
cable from the connector fitting and inserting it
into the high voltage probe. If voltage is low,
replace high voltage cable with a known good
one and retest.
- If voltage is still low, check for bad connections
in the high voltage Junction or Switch Tank.
Refer to procedures in the proper manual.
- Reinstall the high voltage cable. Check voltage
at the rotator housing.
Light Coverage on Some
Parts
Poor Transfer Efficiency
Low Current Readings
High Current Readings /
Power Supply Overloads
Low Voltage
AA-07-02.1