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TROUBLESHOOTING & REPAIR | ||
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MAIN TRANSFORMER REMOVAL AND REPLACEMENT
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PROCEDURE
1.Disconnect main input power to the machine.
2.Remove the Case Top and Side Panels.
3.Perform the Capacitor Bank Removal Procedure.
4.Remove lead X1 from the left side SCR heat sink assembly using a 1/2" socket wrench, extender and universal 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.
12.Disconnect the positive output lead at the wire drive motor.
13.Remove the strain relief grommet through which the positive output lead passes through the horizontal baffle of the machine.
14.Pull down on the positive output lead until it slides out the hole in the baffle.
15.Carefully remove the main trans- former.
a. Be sure all leads are clear.
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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 front of the transformer.
b.These leads must be
c.An alternative to cutting these leads is to remove them from Molex Plug J3 and pull them free of any wire bundles.
10.Remove all cable ties, wire mounts, - and any harness tape that could get in the way during transformer removal using wire cutters and screwdriver.
11.Remove the four screws mounting the transformer to the floor of the machine using a 5/16" nut driver.