C-8

C-8

ACCESSORIES

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CONNECTION OF THE K488 SG CONTROL MODULE AND K487 MAGNUM SPOOL GUN TO THE SA-250 (SEE FIGURE C.5.)

1.Shut the welder off.

2.Connect the electrode cable from the SG Control Module to the “+” terminal of the welder. Connect the work cable to the “CV–” terminal of the welder.

NOTE: Welding cable must be sized for current and duty cycle of application.

NOTE: Figure C.5 shows the electrode connected for positive polarity. To change polarity, shut the welder off and reverse the electrode and work cables at the SA-250 output terminals.

3.Connect the K867 Universal adapter to the K492 input cable as shown in Figure C.5. Connect the other end of the adapter to the 14 pin amphenol on the SA-250.

4.Connect the K492 Input Cable to the SG Control Module.

5.Set the slide switch on the SG Control Module to the “Lincoln” position.

6.Place the IDLER switch on the SA-250 in the “HIGH” position.

CAUTION

Any increase of the high idle engine RPM by changing the governor setting or overriding the throttle linkage will cause an increase in the AC auxiliary voltage. If this voltage goes over 140 volts, wire feeder control circuits may be damaged. The engine governor set- ting is preset at the factory — do not adjust above RPM specifications listed in this manual.

7. Adjust wire feed speed at the SG Control Module.

NOTE: For remote control, a K775 remote control is required.

CAUTION

When the welder is in local control, the electrode is always “HOT.”

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CAUTION

Be sure this switch is set to the “Lincoln” (contact clo- sure) position before attempting to operate the SG Control Module. Incorrect switch position could result in damage to the SG Control Module and/or the SA- 250.

FIGURE C.5

SA-250/K492/K488/K487 SPOOL GUN CONNECTION DIAGRAM

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SPARE

Insulate Each

 

14 PIN

82

 

AMPHENOL

81

Unused Lead

 

42

 

 

Individually

 

 

41

 

 

21

 

+

 

31

31

CV-

 

32

32

 

2

2

 

 

4

4

TO

 

GND

GND

K867 UNIVERSAL

 

GREEN

WORK

 

ADAPTER PLUG

75

75

 

ELECTRODE CABLE TO

76

76

77

77

K438 SG CONTROL CABLE

Splice Leads

 

 

and Insulate

K488 SG

CONTROL K487-25

MODULE SPOOL GUN

K492

INPUT CABLE

K775 OPTIONAL REMOTE CONTROL

SA-250

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Image 34
Lincoln Electric SVM128-A service manual Control K487-25
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SVM128-A specifications

The Lincoln Electric SVM128-A is a cutting-edge welding machine designed to meet the demands of both professional welders and DIY enthusiasts. This versatile welding power source brings together advanced technology and robust design, making it a reliable choice for various welding applications.

One of the standout features of the SVM128-A is its capability to perform multiple welding processes. It supports MIG, TIG, and stick welding, allowing users to tackle a wide range of projects with ease. This multi-functionality makes it ideal for professionals working in different industries, as well as for hobbyists who enjoy diverse welding tasks.

The SVM128-A is equipped with inverter technology, which enhances its performance by providing a more stable arc and improved energy efficiency. This technological advancement contributes to lower operational costs and allows for a more consistent weld quality across different materials and thicknesses. Additionally, the inverter technology enables the machine to be lightweight and portable, making it convenient for jobs that require mobility.

Another prominent characteristic of the SVM128-A is its user-friendly interface. The machine features intuitive controls and a digital display that allows operators to easily set the desired welding parameters. This simplified setup helps reduce the learning curve for new users while also offering precise control for experienced professionals.

The Lincoln Electric SVM128-A is designed with durability in mind. Its robust construction ensures that it can withstand the rigors of frequent use in demanding environments. The machine is also equipped with various safety features, including thermal overload protection and a duty cycle rating that prevents overheating, ultimately extending its lifespan.

For optimal performance, the SVM128-A provides adjustable output options, allowing users to customize the welding parameters based on their specific needs. This flexibility makes it suitable for welding various metals, including steel, aluminum, and stainless steel.

In summary, the Lincoln Electric SVM128-A combines versatility, advanced technology, and a user-friendly design. With its capability to perform multiple welding processes, lightweight construction, and durable features, it stands out as an excellent option for anyone looking to achieve high-quality welds. Whether for professional or personal use, the SVM128-A is poised to deliver reliable performance and exceptional results.
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