Lincoln Electric RANGER 225 GXT Service Manual page 59

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13. Measure the resistance to ground.
A. Set the ohmmeter on the high scale
(X100,000).
B. Place one probe on either of the slip rings.
Place the other probe on any good,
unpainted ground. The machine ground
stud works well.
C. Check the resistance. It should read very
high, at least 0.5 megohm (500,000
ohms).
If the test does not meet the resistance speci-
fications, then the rotor may be faulty. Replace
the rotor.
If the test does meet the resistance specifica-
tions, the rotor is okay.
TROUBLESHOOTING AND REPAIR
ROTOR RESISTANCE TEST (continued)
RANGER® 225 GXT
14. Connect lead 200A to the positive brush, which
is the one nearest the rotor lamination.
Connect lead 219 to the negative brush.
15. Reinstall the case side, case top, fuel cap, lift
bail gasket and spark plug wires.
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