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F-71

F-71

TROUBLESHOOTING AND REPAIR

STATOR RESISTANCE TEST (continued)

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TEST PROCEDURE

14.Connect the test leads J50 and J51 to the stator winding under test. Close S1 and read the volt- ages at V1 and V2, then open S1 IMMEDIATELY. Damage can occur to the stator winding under test if S1 is left in the “on” position for too long. CAUTION: The 1 ohm resistor will also become hot very quickly and can burn to the touch. Leaving the circuit on for too long can also cause the winding to heat up causing errors in mea- surements.

15.Use the following equation to determine the winding resistance:

V2/V1 = winding resistance in ohms.

16.Disconnect J50 and J51 from the stator winding under test. Check the resistance of all the stator windings by repeating steps 13 & 14 and using Table F.3 below.

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Table F.3

 

 

 

Stator Winding Under Test

 

Resistance

 

 

 

 

W1

- W2

 

.009 ohms +/- 20%

W3

- W4

 

.009 ohms +/- 20%

W5

- W6

 

.009 ohms +/- 20%

T1

- T2

 

.130 ohms +/- 20%

T2

- T3

 

.130 ohms +/- 20%

T3 -T1

 

.130 ohms +/- 20%

E1 - E2 (J2 Plug)

 

.170 ohms +/- 20%

 

 

 

 

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NOTE: The resistances in the above table are to be measured with the windings at an approxi- mate temperature of 25 degrees Celsius (room temp.). Measuring after the windings are heated up can cause errors in the above table.

17.If any of the continuity checks fail in steps 7 thru 16, then the stator is bad. Replace.

18.If the test is complete, reconnect the 3 bolted connections for the T1, T2, & T3 leads from the stator and exciter module, and capacitor leads. Make sure that the T1, T2, & T3 stator leads are matched to the T1, T2, & T3 leads from the exciter module respectively. Mismatching the leads will cause the “---” or “CRS” to be stuck on the display at power up, and no weld output. Cover each bolted connection with sleeving after reconnection. Replace Plug J2. Reinstall the left side engine and stator cover panels and the front shroud per the “Case Cover Removal” section.

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COMMANDER 400

Page 125
Image 125
Lincoln Electric SVM133-B service manual Table F.3

SVM133-B specifications

The Lincoln Electric SVM133-B is an innovative welding machine designed to meet the diverse needs of welders and fabrication shops. This versatile equipment combines state-of-the-art technology with user-friendly features, making it ideal for both novice and professional welders.

One of the main features of the SVM133-B is its advanced inverter technology. This allows for a more efficient power delivery, which translates into reduced energy consumption and lower operational costs. The machine is capable of delivering optimal welding performance across a range of materials, from thin sheets to heavier sections, making it suitable for various applications in industries such as automotive, construction, and repair.

The SVM133-B supports multiple welding processes, including MIG, stick, and TIG welding. This flexibility ensures that users can adapt to various job requirements without needing multiple machines. The intuitive control panel allows users to switch between modes effortlessly, providing a seamless welding experience.

Another notable characteristic of the SVM133-B is its compact and lightweight design. Weighing significantly less than traditional welding machines, it is highly portable, making it easy to transport to different job sites. Additionally, its rugged construction ensures durability, allowing it to withstand tough working conditions.

The SVM133-B is equipped with advanced safety features, such as overheat and overload protection, which safeguard both the machine and the user during operation. It also includes a digital display that provides real-time feedback on settings, voltage, and amperage, which enhances precision and control during welding tasks.

Lincoln Electric has prioritized ease of use in the SVM133-B, with quick setup guides and clear instructions. This user-centric approach not only facilitates a smoother learning curve for beginners but also optimizes the workflow for experienced welders, enabling them to maximize productivity.

One of the standout features is the capability to weld aluminum with ease, thanks to its spool gun compatibility. This feature sets the SVM133-B apart from many competitors, providing added value for users who require flexibility in their welding projects.

In summary, the Lincoln Electric SVM133-B stands out in the welding machine market due to its inverter technology, multi-process capabilities, portability, and robust safety measures. It embodies the perfect blend of innovation and practicality, making it a top choice for welders looking to enhance their skills and productivity across a wide array of applications. Whether for professional use or hobbyist projects, the SVM133-B offers a reliable solution for high-quality welding tasks.