© Titan Tool Inc. All rights reserved. 7
Troubleshooting
Problem
Decrease in paint flow
Irregular pattern
Gun will not shut off
Paint needle seal leaking
Air will not shut off
Low or no pre-air
Cause
1. Gun filter clogged
2. Viscosity too high
3. Nozzle too wide or worn
4. Material pressure low
1. Airless tip clogged
2. Gun filter clogged
3. Tip too wide or worn
4. Viscosity too high
5. Low atomization
6. Air cap dirty
7. Atomizing air pressure too high or too
low
1. Seal washer or needle ball worn
2. Needle spring has lost stress
3. Needle seal too strong thus needle
cannot be moved through the spring
1. Needle seal worn
2. Packing gland to loose
1. Valve spring fatigue
2. Valve seal worn
3. Valve seal defective
1. Pre-air stroke screw not properly
adjusted
Solution
1. Clean or replace filter
2. Thin the paint
3. Insert a new tip
4. Increase air inlet pressure of the pump
1. Replace tip
2. Clean or replace filter
3. Replace tip
4. Reduce the paint
5. Open air regulation
6. Clean with a bristle brush (not wire)
7. Adjust pressure regulation valve
1. Replace the seal washer or needle ball
2. Replace the needle spring
3. Replace sealing kit
1. Replace sealing kit
2. Tighten packing gland
1. Replace spring
2. Replace valve seal
3. Replace valve seal
1. Adjust pre-air
