Lincoln Electric 11694 Service Manual page 82

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POWER WAVE S350
REMOVAL AND REPLACEMENT PROCEDURE
REMOVAL PROCEDURE
1. Remove the input power to the Power Wave S350 machine.
2. Perform the Case Cover Removal and DC Link Capacitor
Discharge Procedure.
3. Label and disconnect the small plug from the top of the current
transducer. See Figure F.36. See Wiring Diagram.
4. Using two 7/16" open end wrenches, remove the bolt and washers
securing the negative output cable to the bus bar. See Figure
F.36. See Wiring Diagram. Label lead for reassembly. Note
washer placement for reassembly.
5. Using two 7/16" open end wrenches, remove the bolts and
washers securing the three pairs of leads to the bus bar. See
Figure F.37. See Wiring Diagram. Label leads for reassembly.
Note washer placement for reassembly.
6. Using two 7/16" open end wrenches, remove the bolt and washers
securing the bus bar to the bottom choke bracket. See Figure
F.37.
7. Using two 7/16" open end wrenches, remove the bolt and washers
securing the bus bar to the top choke bracket. See Figure F.37.
8. Carefully slide the bus bar out of the bottom choke bracket.
9. Using a slotted screwdriver, remove the screw securing the
current transducer to the bottom choke bracket. See Figure F.38.
10. The current transducer can now be removed and replaced.
CURRENT TRANSDUCER
Figure F.36 – Current transducer plug location
CURRENT
TRANSDUCER
PLUG LOCATION
NEGATIVE OUTPUT
CABLE CONNECTION
TROUBLESHOOTING AND REPAIR
(continued)
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