Graco XM Series Repair Parts page 28

Troubleshooting
Problem
Paint does not cure consistently.
Poor spray pattern.
28
Cause
Ratio not set correctly.
Material not mixing correctly.
Material not properly conditioned
before it was added to sprayer.
Not using enough integration hose.
Fluid pressure too low.
Fluid temperature too low.
Spay tip dirty or worn.
Fluid A and B fitters plugged.
Mixer hoses partially plugged or too
restrictive.
Solution
Check that correct ratio is set and set by
volume. See XM sprayer operation manual.
Test pump. Make sure mixer is clean; flush as
needed. See XM sprayer operation manual.
Position mixer after integrator hose.
Mix material thoroughly.
Add more integration hose.
Select "fast dosing" in setup.
Increase pump pressure.
Increase fluid temperature.
Relieve pressure. Clean or replace tip. Follow
gun manual instructions.
Clean filters. See pump manual.
Inspect parts for cured material. Clean or
replace, or use larger hoses and mixer.
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