Lincoln Electric V350-PRO User Manual download pdf (Page 80)

TROUBLESHOOTING AND REPAIR

FAN CONTROL AND MOTOR TEST (continued)

F-42 F-42

V350-PRO

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TEST PROCEDURE

1. Remove the input power to the V350-PRO

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.12.

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 115B to COM 2) See

Figure F.13. WARNING: HIGH VOLTAGE IS

PRESENT AT THE MAIN SWITCH BOARD.

J21

J20

J22

Fan Lead

Lead Com 2

Fan Lead

Lead 115 B

Plug J22

FIGURE F.13 PLUG J22

FIGURE F.12 PLUG J22 LOCATION

1 2 ... 75 76 77 78 79 80 81 82 83 84 85 ... 154 155

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Lincoln Electric V350-PRO User Manual Page 80