Lincoln Electric RED-D-ARC DX450 Service Manual page 133

F-89
OUTPUT RECTIFIER BRIDGE AND CHOKE REMOVAL AND REPLACEMENT
Replacing the Output Rectifier
1. Place the Output Rectifier into the machine so
that its mounting studs fit into the holes in the
bracket. Place a lock washer and a nut on
each stud and tighten.
2. Apply a thin film of electrical joint compound,
(Dow Corning) between the surfaces of the
"W" leads and the Output Rectifier.
Reconnect the Output Rectifier, positioning
the leads, bolts, washers, and nuts exactly as
hey had been originally connected. Tighten
all of the connections securely. See Wiring
Diagram.
3. Swing the case front back into position.
4. Attach the case front to the machine base
with four screws.
TROUBLESHOOTING AND REPAIR
(continued)
5. Reconnect all of the leads and plugs that
were disconnected during the removal proce-
dure, and replace any cable ties that were
removed.
6. Perform the Case Cover Removal
Procedure.
DX450
F-89