Lincoln Electric 355M Manuel d'utilisateur télécharger pdf (Page 90)

FAN CONTROL AND MOTOR TEST (continued)

TROUBLESHOOTING AND REPAIR

F-44 F-44

POWER WAVE 355M/405M

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TEST PROCEDURE

1. Remove the input power to the POWER WAVE

355M/405M machine.

2. Using the 5/16” nut driver, remove the case

wraparound cover.

3. Perform the Input Filter Capacitor Discharge

Procedure.

4. Locate plug J22 on the main switch board. Do

not remove the plug from the board. See

Figure F.14.

5. Carefully apply the correct input power to the

machine.

6. Carefully check for 115VAC at plug J22 pin-2

to J22 pin-3. (leads 32A to 31B(C) See Figure

F.15. WARNING: HIGH VOLTAGE IS PRE-

SENT AT THE MAIN SWITCH BOARD.

207

J21

J20

J22

Plug J22

Fan Lead

Lead 31B(C)

Lead 32A

Fan Lead

FIGURE F.15 PLUG J22

FIGURE F.14 PLUG J22 LOCATION

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Lincoln Electric 355M Manuel d'utilisateur Page 90