Graco 16W866 Paint Sprayer User Manual


 
Troubleshooting
26 332919C
Control Board Malfunction (Steps)
-
BEEP
+
-
J1
J2
12 -20 AC
V
-
+
-
10-12 DC
V
-
-
+
+
J10
J5
J9
J4J3
J1J2
LED
D12
J5
-
1-3 ohms
-
+
STEP 1.
Turn engine
OFF and set
meter to
continuity.
To Ground
STEP 3.
Leave engine
running and turn
switch ON. Turn
potentiometer to
high and set
meter to DC
volts.
STEP 2.
Turn engine
ON. Set meter
to AC volts and
connect wires
to control
board.
On/Off Switch
To Clutch
Field
To Engine
Control
Board
WatchDog
Premium Display Board
Potentiometer
Transducer
Clutch Test Points
Pinion
Assembly
Drive
Housing
Pump
On/Off
Switch
Engine
Generator
Control
Board
Clutch Test Points
Clutch
Field
Control
Board
Control
Board
Control
Board
Clutch
Field
STEP 5.
Turn engine
ON and turn
switch ON.
STEP 4.
Turn engine
OFF and
unplug
clutch wires.
Set meter to
Ohms.
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