Graco GMAX 3400 Operation page 37

Convertible Electric Motor Runs - No AC Output to Sprayer Control Board (Steps)
STEP 1.
10-20 AC Plug in cord and turn
switch ON. Connect
V
wires to transformer
and power cord. Turn
-
meter to AC volts.
ti14925a
Jack
Power Cord
AC power to
Transformer
control board
Ground
Black
STEP 4.
Plug in cord and turn
switch ON. Partially
connect wires to
V
splice. Turn meter to
AC volts.
-
Transformer
Power
Cord
White
Black
L1
Electric Engine Control Board
3A6400A
White to barrel
Black to tips
Transformer
Black
Black
Jack
Black
White
Engine Control Board
Black
L1 L2
+M -M
TS TS
ti14930a
Electric
Engine
ti14929a
White
L2
ti14926a
White to barrel
Power Cord
AC power to
control board
Black to tips
White
STEP 5.
Plug in cord and
10-20 AC
turn switch ON.
Partially connect
V
wires to splice.
Turn meter to AC
-
volts.
ti14928a
Troubleshooting
STEP 2.
Check AC power cord
BEEP
for an open wire. Turn
meter to continuity
test. Meter should
read continuity.
-
Power Cord
AC power to
control board
STEP 3.
BEEP
Check AC power
cord for an open
wire. Turn meter to
continuity test.
Meter should read
-
continuity.
Power Cord
AC power to
ti14927a
control board
Transformer
Black
Black
White to barrel
Black to tips
White to barrel
Black to tips
Black
Jack
37