Graco 217-38 EM 380 User Manual page 11

Troubleshooting Guide
WARNING
Always disconnect the sprayer from the
power source and relieve system pressure
before attempting any service.
PROBLEM
Electric motor won't run
Electric motor stops while spraying
Electric motor runs, but
no
output
Electric motor labors when starting
blows fuses
F
-
-
-
-
-
-
-
-
-
'The electric motor has an overhea
opens, unplug power cord and let
overheating. Always
use
the lowe:
Excessive surge
at
spray gun
Not enough paint pressure
Tails or fingers in spray pattern
Paint runs or sags
Static sparking from spray gun
CAU.SE
wit
fuse blown
Power cord unplugged, or building cir-
Overload switch has opened
Pressure setting too low
cuit fuse blown
Power cord unplugged, or building cir-
Overload switch has opened
Pressure setting too low
Tip or filter plugged
Displacement pump frozen or gear trail
damage
Capacitor failure
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
i
Outlet filter dirty or plugged
Sprayer sucking air or gun needle not
seating
Sprayer or work not grounded
SOLUTION
Check, replace
decrease pressure
Unplug power cord*,
Increase
Check, replace
Unplug power cord*,
cool
relieve pressure-allow to
Increase
Remove and clean
Thaw"'
Replace capacitor
Remove and clean
Change tip
-
see manua'
307-321
Thin
Use
minimum
50
ft
115 m)
static
free nylon
hose only -wire braid
hose unacceptable
Increase
Change tip
-
see
manual
307-321
Increase
Clean
Change tip
-
see
manual
307-321
Fill
Thin
Use
minimum ~50 h
I15 m) static free nylon
hose
only
-
wire braid
hose unacceptable
Clean-see manual
Tighten fittings, service
gun-see manual 307-046
Check, ground
307-273
J
protector switch which automatically resets on cooling. If
it
rayer cool for
30
to
60
minutes.
Also
try to correct the cause of
lressure setting needed.
**Freezing results from failure to replace flushing water with mineral spirits solvent.