Lincoln Electric POWER MIG 11521 - Manual (Page 54)

Black
Tach
J11 J11
Black
Arm
White
Arm
Blue
Tach
Red
Tach
FIGURE F.4 – PLUG J4
WIRE DRIVE MOTOR AND TACHOMETER FEEDBACK TEST (continued)
PROCEDURE
NOTE: POLARITY MUST BE OBSERVED FOR
THESE TESTS.
Test for correct wire drive motor armature voltage.
1. Disconnect main input power to the machine.
2. Open the side panels and remove the tool tray
using a 5/16” nutdriver.
3. Locate plug J4 on the wiring harness. See
Wiring Diagram.
4. Locate the black and white armature leads on
plug J4. See Figure F.4.
TROUBLESHOOTING AND REPAIR F-16 F-16
Power MIG® 215XT
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