Lincoln Electric RANGER 305 D Service Manual page 123

RANGER 305D
TEST PROCEDURE
1. Perform the Case Cover Removal Procedure.
Perform the Capacitor Discharge Procedure.
2.
3. Check that all of the leads connected to the
chopper module terminals are clearly marked to
facilitate reassembly. Remove all of the leads from
the chopper module and position them so they do
not make electrical contact with any part of the
module. See the wiring diagram.
4. Use a digital Ohmmeter to test the module per
Table F.2.
CHOPPER MODULE RESIST NCE TEST
F 66
TROUBLESHOOTING & REPAIR