Lincoln Electric RANGER 3PHASE SVM207-A Service Manual page 60

F-22
LEAD 'X'
LEAD 254
LEAD 6
LEAD 3
LEAD 213A
TEST PROCEDURE
1. With a 5/16" nut driver or socket, remove the 6
sheet metal screws from the case top.
2. Remove the rubber gasket (cover seal) from the lift
bail.
3. Remove the fuel cap. The rubber gasket for the fill
tube will come off with the case top.
4. Remove the case top, then replace the fuel cap.
5. Remove the screws holding the right case side.
6. Remove the right case side by lifting up and out.
7. Start the engine and set it to AUTO and wait for it to
drop to low idle (2400 rpm).
8. Plug a trouble light with a 100 watt bulb into one of
the 120VAC receptacles.
TROUBLESHOOTING AND REPAIR
TOROID TEST (continued)
FIGURE F.6 – TOROID ASSEMBLY
D
X5
C
R16
X4
4 3
J2
1
2
RANGER® 3 PHASE
CONTROL
1 6
J1
7 12
R95
X3
R94
R41
R7
R34
R43
R49
R32 D3
C26
R23
R57
R47
R56
C27
Q6 Q3
Q1
A
DZ7
R83
X1
R84
C4 C7
R85
Q4
The machine should go to High Idle.
If it does not, measure the voltage across the toroid
leads (260 and 261) at pins 3 and 4 of J2. See
Figure F.6. It should be approximately 2.8VAC.
If the voltage is correct, the Control Board may be
defective.
If the voltage is not correct, the toroid may be
defective.
9. Shut the engine OFF.
NOTE: If the Toroid needs to be replaced, pay close
attention to the direction that the various leads
are routed through it. See the Wiring Diagram
for exact instructions.
F-22
B2
B
D10
L12198-1
R71
TP1
R72
R73
TP2
R74
R62 R67
R68
R69
R70
FTP1
C36
B1
R5 R88
D9