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F-60

F-60

TROUBLESHOOTING & REPAIR

MAIN TRANSFORMER REMOVAL & REPLACEMENT (continued)

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REASSEMBLING THE MAIN TRANSFORMER INTO THE MACHINE

NOTE: The following procedure assumes you have completely reassembled the transformer coils as described in the procedure above. The lower iron has remained in place in the machine. See Figures F.26 and F.27.

1.Resolder the choke thermostat lead.

2.Attach the bottom choke lead to the negative recti- fier plate.

3.Attach the top choke lead to the polarity selector switch or the negative output terminal.

REASSEMBLE THE LIFT BAIL

1.Carefully position the lift bail onto the machine base. Using the 9/16” socket wrench, attach the lift bail to the base of the machine with four bolts, flat washers, and lock washers.

2.Using the 9/16” socket wrench, attach the lift bail to the transformer top and bottom irons with four bolts.

3.Install resistor R3 (40 ohms, 100 watts).

4.If the optional Pocket Amptrol diodes are installed, resolder the leads to the shunt and the optional polarity switch. Resolder leads #218 and #219 to the sensing resistor.

5.Attach the fiber baffles to the left and right sides of the choke.

6.Reattach any transformer coil connections that were previously removed.

7.Install the machine case top and sides.

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IDEALARC R3R

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Lincoln Electric R3R-300, R3R-500 Reassembling the Main Transformer Into the Machine, Reassemble the Lift Bail