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F-92

TROUBLESHOOTING & REPAIR

F-92

 

CHOPPER MODULE REMOVAL AND REPLACEMENT (CONTINUED)

 

FIGURE F.18 - MODULE LEAD LOCATIONS

 

 

 

23

 

 

 

 

LED1 (B1,B2,B3)

25

 

LED4

 

 

Chopper Working

 

 

PWM Signal

 

 

B1

L12683-1

B8

B4

HL W11

HL W6

 

 

 

LED4

 

 

 

LED1

 

 

 

 

 

 

 

 

B2

LED2

LED3

B5

HL W5

 

B3

 

 

B6

 

HL W4

 

 

 

 

 

 

LED2

 

HL W9

Voltage from

HL W8

Rectifier

 

 

LED3 (B4,B5,B6)

 

 

Chopper Working

SL302

 

 

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SL301

PROCEDURE

REMOVAL

1.Turn the engine off.

2.Perform the Case Cover Removal Procedure.

3.Perform the Chopper Module Capacitor Discharge procedure.

4.Disconnect leads 23 and 25 at their in-line couplings.

5.Using the 7/16” socket wrench, remove the fol- lowing leads. Label the leads before removal. Cut cable ties as needed. Note placement of leads and fasteners: screw, lock washer, flat washer, small lead, heavy lead.

6.Using a 3/8” socket wrench, remove the three screws holding the power module assembly to its brackets on the vertical baffle. Remove the plastic strip with the top two screws. Be sure to support the Power Module as you remove the last screw.

SL13

SL14

7.Remove the Power Module assembly from the machine.

TERMINAL

LEADS

 

 

B4

Heavy lead W11,

 

Small lead 14

B5

Heavy lead W5,

 

Small lead 13

B6

Heavy lead W8

 

 

B1

Heavy lead W6

 

 

B2

Heavy lead W4,

 

Small lead 301

B3

Heavy lead W9,

 

Small lead 302

VANTAGE® 400

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Lincoln Electric 400 service manual Procedure, Removal, Terminal Leads

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.

One of the main features of the Lincoln Electric 400 is its multi-process capability. It seamlessly integrates MIG, TIG, and stick welding processes into a single unit, allowing users to switch between methods depending on the job at hand. This flexibility makes it incredibly suitable for a wide range of materials, including steel, stainless steel, and aluminum.

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.

Another significant characteristic of the Lincoln Electric 400 is its advanced digital display and control interface. This user-friendly panel allows for easy adjustments to voltage and wire feed speed, ensuring precision and high-quality welds. Additionally, the machine includes built-in features to improve the consistency of welding, such as the Smart MIG technology which optimizes the welding parameters automatically based on the wire diameter and material thickness.

In terms of durability, the Lincoln Electric 400 is designed for rugged environments. Its heavy-duty construction, including a robust metal casing and protective features, ensures it can withstand the rigors of daily use in harsh conditions. Furthermore, the welder is often praised for its efficient cooling system, which prolongs the machine's lifespan and maintains optimal performance even during extended usage.

Portability is another key aspect of this welding machine. Weighing under 200 pounds, it is designed with mobility in mind. The integrated wheels allow for easy transportation between job sites, making it a practical choice for mobile welders and contractors.

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.