Ransburg Turbodisk 2 Assembly 78715 - Manual (Page 32)

Turbodisk 2 - Maintenance
28
Figure 6: Troubleshooting Guide
TROUBLESHOOTING GUIDE
General Problem Cause Solution
Fluctuating Pattern
Light Coverage on
Some Parts
Poor Transfer Efficiency
Low Current Readings
High Current Readings /
Power Supply Overloads
Low Voltage
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 H.V. contacts.
1. Target distance to close.
2. Conductive paint.
3. Fairing dirty.
4. H.V. cable breakdown.
5. Fluid tube pinholed to
ground on conductive
paint systems.
6. Isolation mounting rod
dirty or carbon tracked.
1. Power Supply
2. Faulty H.V. switch or
junction tank.
3. H.V. 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 H.V. 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. Solvent base 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 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 H.V.
cable from the connector fitting and inserting
it into the H.V. probe. If voltage is low, replace
H.V. cable with a known good one and retest.
- If voltage is still low, check for bad connections
in the H.V. Junction or Switch Tank. Refer to
procedures in the proper manual.
- Reinstall the H.V. cable. Check voltage at the
rotator housing.
LN-9240-02.1