Ransburg M90 Handguns 77073, 77132 - Manual (Page 36)

AH-99-01.3
TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE
Figure 4: Troubleshooting Guide Figure 4: Troubleshooting Guide Figure 4: Troubleshooting Guide Figure 4: Troubleshooting Guide Figure 4: Troubleshooting Guide
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
Poor Atomization & Poor Atomization & Poor Atomization & Poor Atomization & Poor Atomization &
Distribution
Distribution Distribution Distribution Distribution
Poor Wraparound Poor Wraparound Poor Wraparound Poor Wraparound Poor Wraparound
Paint Wraps Back Paint Wraps Back Paint Wraps Back Paint Wraps Back Paint Wraps Back
on Operator
on Operator on Operator on Operator on Operator
No Paint Delivery No Paint Delivery No Paint Delivery No Paint Delivery No Paint Delivery
1. Partially clogged nozzle
2. Low fluid pressure
3. Viscosity too high
4. Improper nozzle
5. Badly worn nozzle
6. High voltage electrode bent
7. Low shaping air pressure
1. Poor atomization
2. Excessive exhaust velocity
3. Excessive fluid pressure
4. Gun held too close to target
5. Paint too conductive
6. Poor target ground
1. Poor ground on parts
2. Gun held too far from parts
3. Booth exhaust insufficient
or improperly routed
4. Improper spray technique
1. Clogged nozzle
2. Clogged hose or filters
3. No pressure at paint pump
1. Clean out.
2. Increase pump air pressure.
3. Try nozzle with narrower fan or smaller orifice.
4. Try nozzle with narrower fan or smaller orifice.
5. Replace.
6. Straighten electrode or replace nozzle
assembly.
7. Readjust shaping air pressure.
1. See above.
2. Reduce (with code limits).
3. Reduce air pressure to pump.
4. Hold gun further back.
5. Consult ITW Ransburg technical assistance.
6. Check ground integrity from target through
support to ground.
1. Check that parts are fully grounded, strip
workholders.
2. Hold gun closer.
3. Increase, or adjust direction, change booth
filter.
4. Keep gun directed at work.
1. Blow out nozzle.
2. Clean.
3. If pump air supply OK, consult pump manual.
M90 Handguns - Maintenance
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