Graco Magnum SR7 Operation page 27

Problem
Building circuit breaker opens after
sprayer operates for 5 to 10 minutes.
Fan pattern varies dramatically while
spraying.
OR
Sprayer does not turn on promptly
when resuming spraying.
Cannot trigger spray gun.
Spray comes out of spray gun in two
thick streams.
Paint is coming out of pressure
control switch.
Prime/Spray valve actuates
automatically relieving pressure
through prime tube.
Paint leaks down outside of pump.
311984A
Cause
Too many appliances are plugged in
on same circuit.
Sprayer electrical cord is damaged.
Extension cord is damaged or too
long or not a heavy enough gauge.
Pressure control switch is worn and
causing excessive pressure variation.
Spray gun trigger lock is locked.
Reversible spray tip is in UNCLOG
position.
Pressure control switch is worn.
System is over pressurizing.
Pump packings are worn.
Troubleshooting
Solution
Free up circuit (unplug things), or use
a less busy circuit.
Check broken insulation or wires.
Replace electrical cord if damaged.
• Plug in something that you know
is working to test extension cord.
• Replace extension cord.
Take sprayer to Graco/M
authorized service center.
Rotate trigger safety lever to unlock
trigger lock, page 7.
Rotate arrow-shaped handle on
spray tip so it points forward in
SPRAY position, page 10.
Take sprayer to Graco/M
authorized service center.
Take sprayer to Graco/M
authorized service center.
Replace pump packings.
AGNUM
AGNUM
AGNUM
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