Lincoln Electric IDEALARC DC-1000 Service Manual page 100

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MAIN TRANSFORMER REMOVAL AND INSTALLATION (continued)
TRANSFORMER REASSEMBLY
1. Using a hoist, carefully lift the top iron onto the
assembly. Lightly tap on the top of the iron.
2. Position the transformer threaded rods securing
the transformer. Using a 3/4" wrench, secure
the six nuts and lock washers. It may be neces-
sary to hold the threaded rods to keep them
from turning. Tighten nuts to 39 - 41 Ft.-Lbs.
3. The primary coils should be ground tested at
2700 VAC for one second. The secondary coils
should be ground tested at 1500 VAC for one
second. The primary to secondary insulation
should be tested at 2700 VAC for one second.
4. Install the four brackets and two bottom spacers
in the position noted at disassembly. Using a
1/2" socket wrench, secure in position with 16
screws (8 on each side) onto the transformer
side brackets.
TROUBLESHOOTING AND REPAIR
IDEALARC
5. With leads still attached, carefully reposition the
input contactor bracket onto the case back
assembly. Using a 3/8" socket wrench, secure
in position using two screws removed previous-
ly.
6. Attach lead #220 onto the reed switch (3CR).
7. Attach lead #256 onto the choke thermostat.
8. Reconnect lead #211 and #212 to the in-line
connectors.
9. Attach lead #271 onto resistor R3.
10. Perform Lift Bail Installation Procedure.
11. Replace any cable ties or restraints which were
cut to remove the top transformer iron.
® DC-1000
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