Graco Magnum DX 232735 - Page 9

309226 9
Basic Troubleshooting
PROBLEM CAUSE SOLUTION
Pressure is set at maximum,
but cannot achieve a good
spra pattern
Spray tip is too big for
sprayer.
Select a smaller spray tip.
g
spray pattern.
Spray tip is worn beyond
capability of sprayer.
Replace spray tip.
Extension cord is too long or
not a heavy enough gauge.
Replace extension cord. See Grounding and Electrical
Requirements on page 6.
Spray gun fluid filter is
clogged.
Clean or replace spray gun fluid filter (V).
InstaClean fluid filter is
clogged. (XR models only)
Clean or replace InstaClean fluid filter (E).
Inlet screen is clogged. Clean debris off inlet screen (L).
Pump valves are worn. See Output is Low or Fluctuating on page 13.
Motor is hot and runs
intermittently
Vent holes in enclosures are
p
lugged or s
p
rayer is
Keep vent holes clear of obstructions and overspray, and keep
s
p
rayer o
p
en to air
intermittentl
y.
NOTE: This is a thermal
p
l
ugge
d
, or sprayer
i
s
covered.
sprayer open
t
o a
i
r.
NOTE:
This
is
a
thermal
overload condition. Motor
automatically shuts off due to
excessive heat
Extension cord is too long or
not a heavy enough gauge.
Replace extension cord. See Grounding and Electrical
Requirements on page 6.
excess
i
ve
h
ea
t
.
See Startup Hazard After
Thermal Overload in the
WARNINGS section on
Unregulated electrical
generator being used has
excessive voltage.
Use electrical generator with a proper voltage regulator.
Sprayer requires a 120V AC, 60 Hz, 1500-Watt generator.
WARNINGS
section
on
page 3. Damage can occur if
cause is not corrected.
Sprayer was operated at high
pressure with very small tip,
which causes frequent motor
starts and excessive heat
build up.
Decrease pressure setting or increase tip size.
Building circuit breaker opens
after sprayer operates for 5 to
10 minutes.
OR
Too many appliances are
plugged in on same circuit.
Free up circuit (unplug things), or use a less busy circuit.
OR
Building circuit breaker opens
as soon as sprayer is plugged
into outlet, and sprayer is
turned on.
Sprayer electrical cord is
damaged.
Check for broken insulation or wires. Replace electrical cord if
damaged.
Fan pattern varies
dramatically while spraying
OR
Sprayer does not turn on
promptly when resuming
spraying.
Pressure control switch is
worn and causing excessive
pressure variation.
Replace Pressure Control knob using Pressure Control
Switch Kit 244266 for DX models or 244267 for XR models.
Cannot trigger spray gun. Spray gun trigger safety lever
is in SAFETY ON position.
Rotate trigger safety lever (S) to SAFETY OFF position.
Spray comes out of spray gun
in two thick streams.
Reversible spray tip is in
UNCLOG position.
Rotate arrow-shaped handle on spray tip so it points forward in
SPRAY position.
Paint is coming out of
pressure control switch.
Pressure control switch is
worn.
Replace Pressure Control knob using Pressure Control
Switch Kit 244266 for DX models or 244267 for XR models.
Spray–Prime/Drain valve
actuates automatically,
relieving pressure through
drain tube.
System is overpressurizing. See Excessive Pressure is Building Up on page 16.
Paint leaks down outside of
pump.
Pump packings are worn. Replace pump packings. See Pump Service on page20.