Graco Magnum SR7 Operation page 25

Problem
Pump does not prime.
Spray gun stopped spraying.
Pump cycles but does not build up
pressure.
Pump cycles, but paint only dribbles
or spurts when spray gun is trig-
gered.
Spray pattern is inconsistent or is
leaving stripes.
311984A
Cause
Prime/Spray Valve is in SPRAY posi-
tion.
Inlet screen is clogged or suction
tube is not immersed.
Inlet valve check ball is stuck.
Outlet valve check ball is stuck.
Suction tube is leaking.
Prime/Spray Valve is plugged.
Spray tip is clogged.
Pump is not primed.
Inlet screen is clogged or suction
tube is not immersed in fluid.
Paint pail is empty.
suction tube is leaking.
Prime/Spray Valve is worn or
obstructed with debris.
Pump check ball is stuck.
Pressure is set too low.
Spray tip is clogged.
InstaClean fluid filter is clogged.
Spray gun fluid filter is clogged.
Spray tip is too large or worn.
Pressure is set too low.
Spray tip is worn beyond capability of
sprayer.
Troubleshooting
Solution
Turn Prime/Spray Valve to PRIME
position (pointing down).
Clean debris off inlet screen and
make sure suction tube is immersed
in fluid.
Remove suction tube and place a
pencil into the inlet section to dis-
lodge the ball, allowing pump to
prime properly. OR Power Flush
sprayer, page 19.
Insert screw driver in slot and remove
™
Easy-Access door, page 5.
Unscrew outlet valve with a 3/4 in.
socket. Remove and clean assembly.
Tighten suction tube connection.
Inspect for cracks or vacuum leaks.
Clean/replace prime tube as neces-
sary. Take sprayer to Graco/M
authorized service center if valve is
plugged.
Unclog spray tip, page 10.
Prime pump.
Clean debris off inlet screen and
make sure suction tube is immersed
in fluid.
Refill paint pail. Reprime sprayer.
Tighten suction tube connection.
Inspect for cracks or vacuum leaks. If
cracked or damaged, replace suction
tube.
Take sprayer to Graco/M
authorized service center.
Read Pump does not prime section
in Troubleshooting, page 24.
Slowly turn Pressure Control Knob
clockwise to increase pressure set-
ting which will turn motor on to build
pressure.
Unclog spray tip, page 10.
Clean or replace InstaClean fluid fil-
ter, page 21.
Clean or replace gun fluid filter, page
21.
Replace tip.
Turn Pressure Control Knob clock-
wise, to increase pressure.
Replace spray tip.
AGNUM
AGNUM
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