Troubleshooting Guide - Ransburg 75785 Service Manual

TROUBLESHOOTING GUIDE

TROUBLESHOOTING GUIDE
TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE
General Problem General Problem General Problem
General Problem General Problem
DEFECTIVE SPRAY PATTERN DEFECTIVE SPRAY PATTERN DEFECTIVE SPRAY PATTERN
DEFECTIVE SPRAY PATTERN DEFECTIVE SPRAY PATTERN
Pattern Will Not Pattern Will Not
Pattern Will Not Pattern Will Not Pattern Will Not
Shape Shape Shape Shape Shape
Pattern Heavy at One Pattern Heavy at One Pattern Heavy at One Pattern Heavy at One Pattern Heavy at One
End End End End End
Extremely Heavy Extremely Heavy Extremely Heavy Extremely Heavy Extremely Heavy
Spitting or Severely Spitting or Severely Spitting or Severely
Spitting or Severely Spitting or Severely
Deformed Pattern Deformed Pattern
Deformed Pattern Deformed Pattern Deformed Pattern
No Control of Round No Control of Round No Control of Round No Control of Round No Control of Round
Spray Pattern While Spray Pattern While Spray Pattern While
Spray Pattern While Spray Pattern While
in Air Spray Mode in Air Spray Mode in Air Spray Mode in Air Spray Mode in Air Spray Mode
INADEQUATE DELIVERY INADEQUATE DELIVERY INADEQUATE DELIVERY
INADEQUATE DELIVERY INADEQUATE DELIVERY
Air Air Air Air Air
Fluid Fluid
Fluid Fluid Fluid
AH-94-04.7
REA-90 and 90L Spray Applicators - Maintenance
Possible Cause Possible Cause Possible Cause
Possible Cause Possible Cause
1. Clogged or faulty fan air valve
2. Air passages in applicator or air line
clogged
3. Worn, faulty, or clogged air cap
1. Clogged or faulty air cap
2. Clogged or faulty fluid nozzle
1. Wrong air cap/fluid nozzle combina-
tion
2. Faulty air cap
1. Wrong fan control valve installed
1. Air passages in applicator or air line
clogged
2. Inadequate air source
3. Paint in air passage
1. Clogged or faulty fluid nozzle
2. Clogged passages in applicator fluid
tube or fluid line
3. Insufficient needle/electrode travel
4. Low fluid supply pressure
5. Clogged fluid filter
6. Clogged or obstructed valve or fluid
regulator
Solution Solution Solution
Solution Solution
1. Clean, repair, or replace.
2. Blow out, clean, or replace.
3. Clean or replace.
1. Clean or replace.
2. Clean or replace.
1. Ensure proper fluid nozzle/air nozzle
pressure reducer combinations (see
"Air Cap/Fluid Nozzle Selection Chart"
in the "Installation" section).
2. Replace.
1. Replace with proper fan control valve.
See "Parts List" for proper assembly
number.
1. Blow out.
2. Increase.
3. Clean and blow out.
1. Flush or replace.
2. Flush.
3. Adjust (see "Trigger Adjustment" in the
"Maintenance" section).
4. Increase.
5. Clean or replace.
6. Clean as required or replace.
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