Basic Troubleshooting
18
312004B
Pump does not prime.
Inlet valve check ball is stuck.
Remove suction tube and place a pencil
into the inlet section to dislodge the ball,
allowing pump to prime properly. OR
Power Flush sprayer (see Operation
manual).
AutoPrime may need replacement. For
Project Painter 7
: plug in unit and listen
for “tap” in pump.
SR7 and ProX7 and 9
: turn power switch
ON and listen for “tap” in pump.
If you do not hear “tap”, AutoPrime is
damaged. Take sprayer to
Graco/M
AGNUM
authorized service
center.
Inlet valve check ball or seat is dirty.
Remove inlet housing. Clean or replace
ball and seat.
Outlet valve check ball is stuck.
Insert screw driver in slot and remove
Easy-Access
™
door, page 10, SR7
models or page 12, ProX7 and ProX9
models. Unscrew outlet valve with a 3/4
in. socket. Remove and clean assembly.
Project Painter 5 and Project Painter 7 -
In immersion mode suction tube is not
immersed
Make sure suction tube is immersed in
paint.
Suction tube is leaking.
Tighten suction tube connection. Inspect
for cracks or vacuum leaks.
Pump does not prime with fluid.
Remove suction tube from paint. Prime
pump with water or solvent-based
flushing fluid.
AllControl is damaged.
Take sprayer to Graco/M
AGNUM
authorized service center.
Pump cycles but does not build up
pressure.
Pump is not primed.
Prime pump (see Operation manual).
Inlet screen is clogged.
Clean debris off inlet screen and make
sure suction tube is immersed in fluid.
All models in Immersion Mode, suction
tube is not immersed in paint.
Make sure suction tube is immersed in
paint.
Project Painter 5 - Hopper mode or all
models in immersion mode, paint pail is
empty.
Refill hopper or paint pail. Reprime
sprayer.
Suction tube is leaking.
Project Painter 5 (hopper mode):
Inlet
tube fitting improperly or not securely
attached to hopper elbow fitting.
Project Painter 7, SR7, ProX 7 and 9:
Tighten suction tube connection. Inspect
for cracks or vacuum leaks. If cracked or
damaged, replace suction tube.
Project Painter 5 and 7 - AllControl prime
valve is worn or obstructed with debris.
Take sprayer to Graco/M
AGNUM
authorized service center.
SR7, ProX7 and ProX9 - Prime/Spray
Valve is worn or obstructed with debris.
Pump check ball is stuck.
Read
Pump does not prime
section in
Troubleshooting, page 17
Problem
Cause
Solution
Summary of Contents for 261800
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