Graco GX FF User Manual

Troubleshooting
40 3A8429B
Pump is primed, but can not
achieve good spray pattern.
Spray tip may be partially
clogged.
Clear spray tip clog. See, Clear
Tip Clog, page 24.
Reversible spray tip is in
UNCLOG position.
Rotate arrow-shaped handle on
spray tip so it points forward to
SPRAY position. See page 24.
Debris in paint. Strain the paint. See page 12.
Pressure is set too low. Align pressure control knob
setting indicator to desired spray
setting. See page 22.
InstaClean fluid filter is clogged. Clean or replace InstaClean fluid
filter. See page 31.
Spray gun fluid filter is clogged. Clean or replace gun fluid filter.
See page 31.
Spray tip selected is too large for
capability of sprayer.
Replace tip. See page Spray Tip
Installation, page 20.
Spray tip is worn beyond the
capability of sprayer.
Replace tip. See Spray Tip
Installation, page 20.
Spray tip gasket and seal worn
or missing.
Replace gasket and seal. See
page 20.
Inlet strainer is clogged or
suction tube is not immersed in
paint.
Clean debris off inlet strainer and
make sure suction tube is
immersed in paint.
Battery has insufficient charge
for tip support.
Charge battery or reduce tip
size.
Inlet pump valve or outlet pump
valve is worn or clogged with
debris.
Check for worn or contaminated
inlet valve or outlet valve.
- Prime sprayer with paint
- Trigger gun momentarily
- When trigger is released, pump
should cycle momentarily and
stop
- If pump continues to cycle,
pump valves may be worn or
contaminated with debris
- Clean or replace valves with
appropriate kits. See page 46.
Material is too thick. Thin material. Follow
manufacturer’s
recommendations.
Airless hose is too long (if extra
section was added).
Remove section of airless hose.
Spray gun stopped spraying
while trigger is pulled.
Spray tip is clogged. Clear spray tip clog. See,Clear
Tip Clog, page 24.
Sprayer lost prime. See troubleshooting section
“Sprayer runs, but pump does
not prime or looses prime while
in use.” on page 39.
When paint is sprayed, it runs
down the wall or sags.
Material is going on too thick. Move gun faster.
Choose a spray tip with smaller
hole size.
Choose spray tip with wider fan.
Make sure gun is far enough
from surface.
Problem Cause Solution

Graco GX FF Specifications

General

Type	Airless Paint Sprayer
Max Pressure	3000 PSI
Hose Length	25 ft
Max. Working Pressure	3000 PSI
Power Source	Electric
Motor Power	0.625 HP