Graco 257025 Operation page 26

*Call AAA Rent-All at 225-291-1356 for assistance ordering parts*
Troubleshooting
Problem
Pressure is set at maximum but can-
not achieve a good spray pattern.
Spray gun stopped spraying.
When paint is sprayed, it runs down
the wall or sags.
When paint is sprayed, coverage is
inadequate.
26
Cause
Reversible spray tip is in UNCLOG
position.
Spray tip is too large for sprayer.
Spray tip is worn beyond capability of
sprayer.
Extension cord is too long or not
heavy enough gauge.
Spray gun fluid filter is clogged.
Inlet screen is clogged.
Pump valves are worn.
Material too thick.
Hose too long (if extra section is
added).
Pump was not primed with flushing
fluid.
Suction tube is leaking.
Prime/Spray Valve is plugged.
Spray tip is clogged.
Debris in paint.
Coat is going on too thick.
Paint coating is going on too thin.
Solution
Rotate arrow-shaped handle on
spray tip so it points forward in
SPRAY position.
Select smaller spray tip.
Replace spray tip.
Replace extension cord. Grounding
and Electrical Requirements, page
7.
Clean or replace spray gun fluid filter.
Clean debris off inlet screen.
Check for worn pump valves.
a. Prime sprayer with paint
b. Trigger gun momentarily.
When trigger is released,
pump should cycle momen-
tarily and stop. If pump con-
tinues to cycle, pump valves
may be worn. Take sprayer
to authorized service center.*
Thin material.
Remove section of hose.
Remove suction tube from paint.
Prime pump with water or flushing
solvent-based flushing fluid.
Tighten suction tube connection.
Inspect for cracks or vacuum leaks.
Clean/replace prime tube as
necessary. Take sprayer to
authorized service center if valve is
plugged.*
Unclog spray tip, page 14.
Strain the paint, page 11.
Move gun faster.
Choose a tip with smaller hole size.
Choose tip with wider fan.
Make sure gun is far enough from
surface.
Move gun slower.
Choose tip with larger hole size.
Choose tip with narrower fan.
Make sure gun is close enough to
surface.
3A0248E