Lincoln Electric IDEALARC SP-255 Service Manual page 99

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MAIN TRANSFORMER REMOVAL AND REPLACEMENT
PROCEDURE
1. Disconnect main input power to the
machine.
2. Remove the Case Top and Side Pan-
els.
3. Perform the Capacitor Bank Re-
moval Procedure.
4. Remove lead X1 from the left side
SCR heat sink assembly using a 1/2"
socket wrench, extender and univer-
sal adapter.
5. Remove lead X4 from the right side
heat sink assembly using a 1/2"
socket wrench, extender and univer-
sal adapter.
6. Disconnect all leads from the recon-
nect panel using a 3/8" open end
wrench.
7. Disconnect all leads from the
POWER SWITCH.
8. Remove the POWER SWITCH.
9. Label and cut leads #202, #203,
#204A.
a. Cut lead #204A at a point just in
b. These leads must be re-spliced
c. An alternative to cutting these
10. Remove all cable ties, wire mounts,
- and any harness tape that could get
in the way during transformer re-
moval using wire cutters and screw-
driver.
11. Remove the four screws mounting
the transformer to the floor of the ma-
chine using a 5/16" nut driver.
TROUBLESHOOTING & REPAIR
front of the transformer.
during reassembly.
leads is to remove them from
Molex Plug J3 and pull them free
of any wire bundles.
IDEALARC
12. Carefully remove the main trans-
former.
a. Be sure all leads are clear.
® SP-255
F-46