TOC

F-43

F-43

TROUBLESHOOTING AND REPAIR

FAN CONTROL AND MOTOR TEST (continued)

Return to Section

Return to Section TOC

Return to Master

Return to Master TOC

7.If the 115VAC is low or not present perform The Auxiliary Transformer Test. Also check plug J22 and associated leads for loose or faulty connections. See the Wiring Diagram.

8.Energize the weld output terminals (Select Weld Terminals ON) and carefully check for 115VAC at plug J22 pin-1 to J22 pin-4 (fan leads). See Figure F.13. If the 115VAC is pre- sent and the fan is not running then the fan motor may be faulty. Also check the associat- ed leads between plug J22 and the fan motor for loose or faulty connections. See the Wiring Diagram. WARNING: HIGH VOLTAGE IS

PRESENT AT THE SWITCH BOARD.

9.If the 115VAC is NOT present in the previous step then proceed to the fan control test.

FAN CONTROL TEST PROCEDURE

1.Locate plug J20 on the switch board. Do not remove the plug from the switch board. See Figure F.12 and Figure F.14.

2.Energize the weld output terminals (Select Weld Terminals ON) and carefully check for +15VAC at plug J20 pin-6+ to J20 pin-2- (leads 715 to 716). See Figure F.14. If the 15VAC is present and the fan is not running then the switch board may be faulty. If the 15VDC is not present when the weld terminals are ener- gized then the control board may be faulty. Also check plugs J20, J7, and all associated leads for loose or faulty connections. See the Wiring Diagram.

WARNING: HIGH VOLTAGE IS PRESENT AT THE SWITCH BOARD.

3.Remove the input power to the V350-PRO.

Note: The fan motor may be accessed by the removal of the rear panel detailed in The

Current Transducer Removal and Replacement Procedure.

4.Replace the case wrap-around cover.

Return to Section TOC

Return to Section TOC

Return to Master TOC

Return to Master TOC

FIGURE F.14 PLUG J20

Lead 716-

Lead 715+

Plug J20

V350-PRO

Page 81
Image 81
Lincoln Electric SVM152-A service manual FAN Control Test Procedure, Current Transducer Removal and Replacement Procedure

SVM152-A specifications

The Lincoln Electric SVM152-A is a cutting-edge semi-automatic wire-feed welding machine designed for professionals seeking high performance and efficiency in their welding tasks. This versatile welding system is known for its robust engineering, advanced technology, and user-friendly features, making it a preferred choice for various applications in metal fabrication, automotive repair, and construction.

One of the standout features of the SVM152-A is its impressive versatility. It can accommodate a wide range of welding processes, including MIG, MAG, and FCAW. This flexibility allows users to switch between different welding techniques with ease, providing the adaptability needed for diverse project requirements. Additionally, the machine supports various wire diameters, catering to different welding applications and materials.

The SVM152-A boasts advanced inverter technology, which enhances its performance by increasing efficiency and reducing power consumption. This technology not only leads to lower operational costs but also provides a stable arc and improved weld quality. The inverter design enables the machine to maintain a consistent output, even in challenging conditions, ensuring a smooth welding experience.

Another key characteristic of the Lincoln Electric SVM152-A is its user-friendly interface. The machine features intuitive controls, making it accessible for both seasoned welders and those new to the craft. The digital display provides clear readings of key parameters, such as voltage and wire feed speed, allowing operators to make quick adjustments for optimal weld quality.

The construction of the SVM152-A is designed for durability and reliability. Made from high-quality materials, it can withstand the rigors of demanding work environments. The machine is also equipped with advanced cooling systems to prevent overheating during prolonged use, ensuring a longer lifespan and consistent performance.

Safety is a top priority in the design of the SVM152-A. The machine comes with built-in safety features, including thermal overload protection and circuit breakers, which help protect the equipment and the operator from potential hazards.

In summary, the Lincoln Electric SVM152-A combines versatility, advanced inverter technology, user-friendly controls, robust construction, and safety features, making it an excellent choice for professionals in various industries. Whether tackling intricate welding projects or high-volume production work, the SVM152-A delivers the performance and reliability that modern welders demand.