Lincoln Electric SVM112-B service manual Figure F.64 Machine Back Secured to Lift Bail

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F-169 F-169

TROUBLESHOOTING & REPAIR

FAN MOTOR REMOVAL AND REPLACEMENT (continued)

FIGURE F.64 - MACHINE BACK SECURED TO LIFT BAIL.

2

1

1. MACHINE BACK

2. LIFT BAIL

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11.With the 3/4" wrench, remove the lead connected to the rear positive (+) output terminal.

12.Swing the back panel up and secure it to the lift bail. See Figure F.64. Use heavy string or wire. BE CAREFUL NOT TO DAMAGE THE RS232 CONNECTOR OR THE WIREFEEDER RECEPTACLES.

13.With the slot head screw driver, remove the clip holding the fan blade onto the motor shaft.

14.Remove the fan blade by carefully sliding it off the motor shaft.

15.With the 11/32" nut driver or socket wrench, remove the two fan motor mount- ing nuts. Remove the split-ring lock washers and flat washers.

16.Remove the fan motor by sliding it out of the mounting bracket and free of the machine.

NOTE: Repeat this procedure to remove the

second fan motor if necessary.

17.To install the fan motor, do the following: Carefully position the fan motor into place on the mounting bracket with the leads toward the terminal strip. Install the flat washers, split-ring lock washers, and nuts to the motor mounting bolts. Carefully slide the fan blade all the way onto the motor shaft. The side of the hub with the metal clip goes toward the motor. Install the clip so that it grips the rounded side of the D-shaped shaft, not the flat. Swing the back panel back down, being careful not to damage the RS232 connector or the wire feeder receptacles. Install the lead to the rear positive (+) output termi- nal. Install the case back lower sides and the lower rear panel with the 5/16" screws. Attach the fan motor leads to the terminal strip and replace the tie wraps cut during removal so that the motor leads are held away from the fan blades.

18.Install the machine case sides and top.

19.Install the handle and the lift bail rubber gasket.

POWER WAVE 450