Graco Inc. 256790 Paint Sprayer User Manual


 
Repair / Réparation / Reparación
60 313313A
Digital Display Messages
Digital messages are not available on all sprayers
Blinking LED total count equals digital error code
(Example: Two blinks is the same as E=02).
* Error codes also appear on control board as a blinking red
LED. LED is an alternate to digital messages.
1. Remove two screws (71) and swing down cover (130).
2. Start engine. Blink count is the same as error code(E=0X).
After a fault, follow these steps to restart sprayer:
1. Correct fault condition
2. Turn sprayer OFF
3. Turn sprayer ON
DISPLAY* LED BLINKS SPRAYER OPERATION INDICATION ACTION
No Display Never blinks Sprayer may be
pressurized
Loss of power or
display not
connected
Check power source. Relieve pressure
before repair or disassembly. Verify display
is connected.
Sprayer may be
pressurized
Pressure less than
200 psi (14 bar, 1.4
MPa)
Increase pressure as needed
Once Sprayer is pressurized.
Power is applied.
(Pressure varies with tip
size and pressure control
setting.)
Normal operation Spray
Three times
repeatedly
Sprayer stops.
Engine is running.
Pressure transducer
faulty, bad
connection or
broken wire
1. Check transducer connection
2. Disconnect and reconnect transducer
plug to ensure good connection with
control board socket
3. Open prime valve. Replace sprayer
transducer with known good
transducer and run sprayer. Replace
transducer if sprayer runs or control
board if sprayer does not run.
Five times
repeatedly
Sprayer stops.
Engine is running.
High clutch current 1. Check wiring connections.
2.
Measure:
1.7 + 0.2Ω across clutch field
at 70°F
3. Replace clutch field assembly
Sprayer stops.
Engine is running.
Loss of paint to
pump or severe
pressure loss
1. Check for empty paint condition, clogged
inlet strainer, failed pump or severe leak
2. Reduce pressure and turn pump
switch OFF and ON to restart pump
Seven times
repeatedly
Sprayer stops.
Engine is running.
Pressure greater
than 2000 psi (138
bar, 14 MPa) while
in Flush Timer
Mode
1. Open prime valve and gun
2. Verify no flow obstructions or clogged
filter
ti6314a
psi
bar
MPa
ti6315a
ti6
317a
ti6318a
ti6320a
ti13343a