Lincoln Electric BIG RED 500 Service Manual page 101

F-25
WELD STATOR VOLTAGE TEST (continued)
W5 AND W4
10. Check the resistances from phase to phase.
The resistance should be very low. See Wiring
Diagram.
11. Check the resistances from phases to ground.
The resistance should be greater than 500,000
ohms.
12. If the stator is faulty, replace. See Weld Stator
Removal and Replacement Procedure.
13. When test is complete, connect previously
removed leads.
14. Install the case roof cover.
TROUBLESHOOTING AND REPAIR
FIGURE F.8 – SELECTOR SWITCH LEAD LOCATIONS
BIG RED ® 500/600
F-25
W2 AND W3
W1 AND W6