Lincoln Electric Fleet 650 Service Manual page 58

LINCOLN ELECTRIC
Table F.6 – Output control and arc control potentiometer test points
POTENTIOMETER
OUTPUT CONTROL
OUTPUT CONTROL
ARC CONTROL
ARC CONTROL
TEST POINTS
J7-5 (75) TO J7-1 (77)
J7-1 (77) TO J7-4 (76)
J7-6 (279) TO J7-8 (277)
J7-8 (277) TO J7-7 (278)
Figure F.22 – Weld control board plug J7 location
Fleet™ 650 Service Manual
OHMMETER READING
ABOUT 10K
OHMS VALUE SHOULD SWEEP
SMOOTHLY FROM 10K TO 0
WHEN OUTPUT CONTROL IS
TURNED FROM MIN. TO MAX.
ABOUT 10K
OHMS VALUE SHOULD SWEEP
SMOOTHLY FROM 10K TO 0
WHEN ARC CONTROL IS TURNED
FROM MIN. TO MAX.
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