Graco EM 380 Instructions-Parts List Manual page 3
Portable electric/airless paint sprayer
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Also See for EM 380:
- User manual (12 pages) ,
- Instruction manual (27 pages) ,
- Instructions-parts list manual (12 pages)
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SERVICE
Service instructions are given
in the
following
WARNING
paragraphs. Check everything in
the
chart
before dis-
assembling any part of the sprayer.
Always disconnect sprayer
from
power source
and relieve system pressure beforeanempting any
service.
.
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3OUBLESHOOTING GUIDE
'ROBLEM
ilectric motor won't run
Ilectric
motor stops while spraying
3ectric motor runs but
output
low
ilecaic motor runs, but no output
3ectric motor labors when sarting,
,lowing fuses
-
'..
'aint leaks into wet-cup
'
.
Scxcessi v e surge
at
spray gun
. .
Not
enough paint pressure
Tails or fingers in spray panem
Paint
N T ! S
or sags
Spming from spray gun
Smtic sparking from spray gun
CAUSE
Power cord unplugged,
or
building circuit
fuse
SOLUTION
Check. replace
blown
Overload switch has opened
Unplug cord., decrease pressure
Pressure setting
too
low
Increase
Power cord unplugged,
or
building circuit fuse Check, replace
blown
Overload switch has opened
Unplug.cord*, relieve pressure, allow
Pressure setting too low
Increase
to
mol,
decrease pressure
-
l i p or filter plugged
Piston ball check not seating
P i o n packings worn or damaged
Intake
Mlve
bail check
not
seating
Disalaceme&
ourno frozen
or clear train damanr
_ . r
" "
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Displacement pump
frozen
or gear train damagf
Capacitor failure
..
. . .
. . .
Throat packings worn or damaged
Tip or filter plugged
Spray tip too big or worn
Paint
too'viscous
Wrong
type
hose
. .
............
Pressure setting
too
low
Spray tip too big or worn
Pressure setting too low
Outlet filter dirty
or
plugged
spray tip
too
big or worn
Paint supply low or pail empty
Paint too viscous
Wrong
type
hose
Remove and clean
Service,
see
disp. pump service
I
!+lace,
SF
&sp. pump senrice
. ,.
I
Senice,
see
disp. pump service
Thaw**,
replace
Thaw..
. . .
~
.,-.: :.; >::
..,'
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Replace,
see
dsp. pump service
&move and clean
. . . . . . . . . . . .
c h i i i i tip
-
see manual
307-321
~
~
n
'
:
Use minimum 50 ft (15.2 ml static
free
nylon hose only -wire braid hose unac,
ceotable
Increase
.
.
,
........
~
Change tip
-
see manual
30?-321
InCreasa
.
.
Clean
Change tip
-.see
manual 307-321
Fin
Thin
nvlon hose only -wire braid hose unac.
Use minimum
50 ft (15.2
ml &tic free
.
ciptabla
Outlet
filter dirty or plugged
Paint supply
l o w
or pail empty
Clean-see manual 307273
F i l l
Sprayer sucking air or gun needle not seating
Tighten fittings, service gun -see
Check, ground
Sprayer or worknot grounded
manual 307445
'The electric motor has an overheating protector switch which automatically resets
on
cooling. If
it
opens, uvplug unit and
let
it
cool for 30 to W minutes.
Also
try
to
correct
the
cause of overheating. Always
use the
lowest pressure semng needed.
*.Freezi n g
results
from failure
to
replace flushing water with mineral spirii solvent.
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307-371
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