Spray Patterns
Problem
Tails
Hour glass
Distorted
Pattern expanding and
contracting (surge)
Round pattern
Solution
1. Fluid not atomizing correctly:
Increase fluid pressure. Change to smaller
tip orifice size. Reduce fluid viscosity.
Reduce hose length. Clean gun and
filter(s). Reduce number of guns using
pump.
1. Same as above.
1. Clean or replace nozzle tip.
1. Inspect for suction hose leak.
2. Change to a smaller tip orifice size. Install
pulsation dampener in system or drain
existing one. Reduce number of guns using
pump. Remove restrictions in system; clean
tip screen if filter is used.
1. Replace tip.
2. Increase pressure. Thin material. Change
nozzle tip.
Cause
1. Inadequate fluid delivery
1. Inadequate fluid delivery
1. Plugged or worn nozzle tip
1. Suction leak
2. Pulsating fluid delivery
1. Worn tip
2. Fluid too heavy for tip
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Troubleshooting
