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F-52

TROUBLESHOOTING & REPAIR

F-52

 

STATOR VOLTAGE TESTS (CONTINUED)

FIGURE F.11 RECEPTACLE LEAD LOCATIONS (TYPICAL)

 

 

AMPHENOL 1

GROUND

 

 

 

CONTACTOR

 

 

 

 

 

 

 

CONTROL

 

 

 

C

B

 

 

 

 

 

 

A

 

 

 

 

 

 

 

 

 

 

 

 

 

120 VAC FOR WIRE FEEDER

 

 

D

L

K

 

 

 

 

 

J

 

 

 

 

 

 

 

 

E

 

 

 

 

 

 

 

M

N

I

 

REMOTE

 

 

 

 

 

 

 

 

 

 

 

F

 

G

 

 

 

CONTROL

 

H

 

40 VAC FOR WIRE FEEDER

 

 

 

 

 

KEY

 

 

 

 

 

21 WORK SENSE

 

 

 

 

 

 

 

 

 

L4

 

 

 

 

 

2 TIMES THRU FERRITE LEADS 75A, 76A, & 77A

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TEST PROCEDURE

1.Perform the Case Cover Removal procedure.

NOTE: Voltage tests of the 120 and 120/240 VAC receptacles can be performed by placing the meter probes directly into the appropriate connection slots in the front of the receptacles rather than testing at the lead connections described below. If the meter probes are not long enough to make contact with the conductors inside the receptacles, test pins may be used.

To test the 120 VAC auxiliary winding:

1.Connect the volt/ohmmeter probes to either 120 VAC receptacle as follows.

2.For the upper receptacle, place the probes direct- ly into receptacle, or connect to leads #3D and #5A. See Figure F.11. See wiring diagram.

For the lower receptacle, place the probes direct- ly into the receptacle, or connect to leads #6E and 5B. See Figure F.11. See wiring diagram.

3.Start the engine and run it at high idle (1860-1890 RPM).

4.Check the AC voltage reading. It should read between 115 and 132 VAC.

To test the 240 VAC auxiliary winding:

1.Connect the meter probes to leads #6F and #3E where they connect to the 120/240VAC recepta- cle, or insert the probes into the 240 VAC con- nection slots in the front of the receptacle. See Figure F.11. See wiring diagram.

2.Start the engine and run it at high idle (1860-1890 RPM).

3.Check the AC voltage reading. It should read between 230 and 264 VAC.

4.If these voltage readings are not within the spec- ified limits, check for tripped or defective circuit breakers, loose connections, or broken wires between the test points and the stator windings. If there are no wiring problems, and the circuit breakers are not tripped or defective, the stator is defective and should be replaced.

VANTAGE® 400

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Image 100
Lincoln Electric 400 service manual To test the 120 VAC auxiliary winding, To test the 240 VAC auxiliary winding

400 specifications

The Lincoln Electric 400 is a state-of-the-art multi-process welding machine designed to meet the demands of today’s industrial welding applications. Renowned for its reliability and versatility, this welder is a preferred choice among professionals in fabrication, construction, and maintenance industries.

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The welding machine boasts a robust power output, with a maximum range of 400 amps. This impressive capacity enables it to handle thick materials effectively, making it ideal for heavy-duty tasks. The machine operates on both single-phase and three-phase power, giving users the advantage of versatility depending on the power source available at the job site.

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In conclusion, the Lincoln Electric 400 stands out in the welding equipment market due to its multi-process capabilities, impressive power output, user-friendly interface, durability, and portability. It is engineered to exceed the expectations of professional welders, providing them with the tools needed for high-quality results across a variety of applications.