Lincoln Electric POWER MIG 11521 - Manual (Page 81)

X10
X9
104B
104C
H1B
FIGURE F.17 – LEADS X9, X10, 104B, 104C, & H1B
MAIN TRANSFORMER REMOVAL AND REPLACEMENT PROCEDURE
(continued)
15. Carefully maneuver the main transformer out
the left side of the machine.
NOTE: Two people may be needed to maneuver
the main transformer out of the machine.
REPLACEMENT
1. Carefully maneuver the new main transformer
back into the machine and onto its mounting
studs.
2. Using a 1/2” nutdriver, mount the main trans-
former in its proper position.
3. Reconnect leads 118 and 121 previously
removed.
4. Using a 5/16” nutdriver, close the rear access
panel previously opened.
5. Reconnect lead X1 to the output diode bridge
rectifier.
6. Reconnect leads X8, X7, X6, X5, X4, X3, & X2
previously removed from the switch assembly.
7. Reconnect lead H1B and the other associated
lead connected to the same terminal. These
leads are connected to the ON/OFF switch.
8. Replace any necessary cable ties and wiring
harnesses.
9. Reconnect leads X9, X10, 104B, & 104C. See
Wiring Diagram.
10. Using a 5/16” nutdriver, replace the tool tray.
11. Using a 3/8” nutdriver, replace both sides of the
case wraparound cover.
TROUBLESHOOTING AND REPAIR F-43 F-43
Power MIG® 215XT
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