Lincoln Electric PRECISION TIG 185 SVM169-A Service Manual page 88

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REMOVAL AND REPLACEMENT PROCEDURE (Continued) REMOVAL AND REPLACEMENT PROCEDURE (Continued)
REMOVAL PROCEDURE
1. Remove input power to the TIG 185
machine.
2. Using the 3/8" nutdriver remove the case
wrap-around cover.
3. With the needle nose pliers remove the
two secondary leads from the quick-con-
nects on the high frequency arc starter
board assembly. See Figure F.11.
4. Disconnect the in-line splice quick con-
nect from one primary lead to lead #231A.
Cut any necessary cable ties.
5. Remove the lead splice from the other pri-
mary lead that is connected to lead #236
and the C4 capacitor.
gram. Cut any necessary cable ties.
FIGURE F.11 SECONDARY LEADS AT HIGH FREQUENCY STARTER BOARD
TROUBLESHOOTING & REPAIR
HIGH VOLTAGE TRANSFORMER HIGH VOLTAGE TRANSFORMER
See wiring dia-
PRECISION TIG 185
6. Using the phillips head screwdriver
remove the front mounting screws from
the base of the high voltage transformer.
Take note of insulator placement for
reassembly. NOTE: On some machines
the mounting screw configuration may be
different.
7. With phillips head screwdriver loosen the
two rear mounting screws.
8. Carefully slide the transformer forward
and remove from the TIG 185 machine.
TRANSFORMER
SECONDARY
LEADS
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