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Troubleshooting
312001G 29
Pressure is set at maximum but
cannot achieve a good spray
pattern.
Reversible spray tip is in
UNCLOG position.
Rotate arrow-shaped handle on
spray tip so it points forward in
SPRAY position, page 13.
Spray tip is too large for sprayer. Select smaller spray tip.
Spray tip is worn beyond
capability of sprayer.
Replace spray tip.
Extension cord is too long or not
heavy enough gauge.
Replace extension cord.
Grounding and Electrical
Requirements, page 6.
Spray gun fluid filter is clogged. Clean or replace spray gun fluid
filter, page 21.
InstaClean fluid filter is clogged. Clean or replace InstaClean fluid
filter, page 21.
Inlet screen is clogged. Clean debris off inlet screen.
Pump valves are worn. Check for worn pump valves.
a. Prime sprayer with paint
b. Trigger gun momentarily.
When trigger is released,
pump should cycle
momentarily and stop. If
pump continues to cycle,
pump valves may be worn.
Material is too thick. Thin material.
Hose is too long (if extra section is
added).
Remove section of hose.
Spray gun stopped spraying. Pump was not primed with flush-
ing fluid.
Remove suction tube from paint.
Prime pump with water or sol-
vent-based flushing fluid.
Suction tube is leaking. Tighten suction tube connection.
Inspect for cracks or vacuum
leaks.
Prime/Spray valve is plugged. Clean/replace prime tube as nec-
essary. Take sprayer to
Graco/M
AGNUM authorized ser-
vice center if valve is plugged.
Spray tip is clogged. Unclog spray tip, page 13.
When paint is sprayed, it runs
down the wall or sags.
Coat is going on too thick. Move gun faster.
Choose a tip with smaller hole
size.
Choose tip with wider fan.
Make sure gun is far enough from
surface.
Problem Cause Solution