CAUSE
SOLUTION
Spray tip or filter plugged
Wrong
ma
hose
Thin Paint too viscous
Change spray tip.
Spray tip too big or worn
Remove and clean
nylon hose
(wire braid hose unaccep-
Use minimum
50h
(15.2
m)
static free
table1
PROBLEM
Excessive surge
at
spray gun
Not
enough paint pressure
Tails or fingers
in
spray pattern
Paint runs or sags
Spitting from spray gun
-
Static sparking from spray gun
*The elactric mator has an overheating protector switch which automatically resets
on
cooling. If
it
opens and the electric
motor shuts itself
off,
unplug the power cord and
la1
the sprayer cool for
30
to
60
minutes.
Also
try
to correct the cause of
overheating. Always use the lowest pressure setting needed.
b
I
'*Freezing results from failure to replaca water
-
base paint
or
flushing water with mineral spirits solvent.
*"Over pressurization results from
(1)
using lesa than
50
h
(15.2
ml of nylon spray hose,
12)
using
a
wire braid spray hose.
131
valve/pressure relief valw. or
(51
using e clogged
or incorrectly assembled filter.
adding
a
shutoff device between
the pump outlet
and the spray gun,
141
attaching
a
spray hose to the filter drain
Pressure setting too low
Service, see
307-793
Worn pump parts
replace, see
page
20
Thaw**, change, remove or clean*'*. Pressure control frozen or damaged by
over pressurization
Change spray tip
Spray tip too
big or worn
Increase
Pressure setting too low
Increase
Outlet filter ditty or plugged Clean
-
see manual
307-273
Spray tip too big or worn
Change spray tip
Paint supply low or pail empty
Fill
Paint too uiscous Thin
Wrong type hose
Use minimum
50
h
(15.2
m)
static
free
nylon hose (wire braid hose unaccep
-
table)
-~
Spray tip too big or worn
I
Change spray tip
Paint supply low or pail empty
I
Fill
Sprayer sucking air or gun needle not
seating
I
Tighten fittings. service gun
-
see
manual
307-633
or
307
-
614
'
Sprayer or work not grounded
I
Check, ground
~ ~~
307-724
15
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