Lincoln Electric SVM153-A service manual Replacement Procedure

to Section TOC

to Master TOC

F-65	F-65
	TROUBLESHOOTING & REPAIR

POWER MODULE/OUTPUT RECTIFIER BRIDGE ASSEMBLY

REMOVAL AND REPLACEMENT (CONTINUED)

Return

Return to Section TOC

Return to Section TOC

Return

Return to Master TOC

Return to Master TOC

Refer to Figure F.29 for Steps 13-15.

13.Using the 7/16" wrench, remove the stator "W" leads from the three terminals on the plastic insulator bracket of the rectifier bridge. Label the leads for reassembly. Pull the leads out through the power mod- ule top bracket.

14.Using the 1/2" wrench, remove the flat strap to the negative output terminal. Pull the strap through the power module top bracket.

15.With the 7/16" socket wrench, remove the four nuts, lock washers, flat washers, and carriage bolts that hold the power module bottom bracket to the machine base.

The power module/output rectifier bridge assembly can now be removed and set to the side.

REPLACEMENT PROCEDURE

1.Place the assembly back into the machine.

2.Install the four carriage bolts, flat washers, lock washers, and nuts that hold the bottom bracket to the machine base.

3.Pull the flat negative output strap through the top bracket and attach it.

4.Feed the stator "W" leads through the top bracket and attach them to the terminals on the glastic insulator bracket.

5.Pass choke lead W11 through the toroid and connect it to the shunt.

6.Connect plug assemblies P/J50 and P/J51 to the power module PC board (both sides).

7.Connect the power module capacitor leads. Torque the capacitor nuts to 50-60 inch-pounds.

8.Replace any cable ties cut during removal.

9.Install the output panel.

10.Connect the ground wire to the output panel assembly, if removed.

11.Attach the front left and right side panels and the front control panel.

Return to Section TOC

Return to Master TOC

COMMANDER 500