Test Procedure After Repair

The following five steps should be completed after examining and or repairing a Power Wave 450R. These steps will insure that all aspects and systems of the Power Wave are functioning. This procedure does not include fan operation, or proper water cooler operation, both of which are industry standard systems not requiring specific technical interpretation. It is assumed that the repair technician is familiar with the basic functions of the Power Wave and how to determine that the machine is powering up correctly and understands the overlay system and memory operations. Additionally, those systems, if not functioning properly, should be clearly apparent to the tech- nician.

After completing repairs, and or cleaning the unit, and while bearing in mind and following all safety precautions listed in the service manual, proceed as follows.

1.Check to insure the 5 Amp circuit breaker on the lower front of the machine does not trip when the machine is on. A tripping breaker indicates a faulty I full wave bridge rectifier mounted on the left side of the control box, or a defective Interface printed circuit board

2.Remove the cover to the control box, look at the component side of the Interface board, and with the power on, observe a flashing LED on the Interface board. If LED is not flashing, replace Interface board.

3.Disconnect the power, and measure the resistance from:

P83 feeder connector pin F to J103 pin 6 at the Interface board connector.

P83 feeder connector pin G to J103 pin 5 at the Interface board connector.

P83 feeder connector pin H to J103 pin 7 at the Interface board connector.

Each resistance check should yield a maximum resistance of 6.5 ohms, with no continuity between any two indi- vidual F, G or H pins.

If a high resistance on one lead is found or two leads shorting together, locate the T12218-7 inductors soldered into the harness you are checking and replace or repair the condition. Recheck.

4.Complete the voltage, current, and Interface board calibration. The calibration procedures are provided in the IM 573 and additional up-dated information appears the latest service CD.

5.Replace covers on the machine, and attempt to trigger the unit following the procedure listed in the EXTERNAL TRIGGERING CIRCUIT procedure in the Power Wave PC Board Replacement Calibration Procedures, IM 573. Pay close attention to the polarity of the 24V. DC. Incorrect polarity will result in damage to the Interface board, Verify O.C.V.

These steps, along with the expected contactor closure and display information will insure that all circuits of the Power Wave 450 are operational.

POWER WAVE CALIBRATION

IM573 specifications

The Lincoln Electric IM573 is a state-of-the-art welding machine that has garnered attention for its advanced features and cutting-edge technologies. Designed to meet the demands of both industrial and commercial applications, the IM573 combines reliability with versatility.

One of the main features of the IM573 is its robust arc performance. The machine is equipped with Lincoln Electric's proprietary Arc Control technology, which enhances the stability of the arc for smooth and consistent welds in a variety of materials. This feature is particularly beneficial for operators who need to work with thin gauge metals, as it minimizes burn-through and ensures precise weld penetration.

The IM573 boasts a digital display interface, providing users with real-time data on welding parameters. This intuitive interface allows for easy adjustments and monitoring of voltage, amperage, and wire feed speed, enabling operators to tailor their settings to suit specific welding tasks. Additionally, the machine includes pre-set programs for various welding processes, making it easier for users to select the optimal settings for common applications.

Versatility is another hallmark of the IM573. It supports multiple welding processes, including MIG, TIG, and Stick welding. This multi-process functionality enables users to switch between techniques quickly, making it a valuable asset in environments where different welding methods are required. The ability to weld a wide range of materials, from carbon steel to stainless steel and aluminum, further enhances the machine's appeal.

In terms of build quality, the IM573 is designed for durability and longevity. It features a rugged housing and temperature protection to withstand demanding work environments. The machine is also designed for easy maintenance, with accessible components that simplify troubleshooting and repair.

Safety is a priority in the design of the IM573. It includes features such as overload protection and thermal overload shutdown, ensuring that the machine operates within safe parameters. This not only protects the equipment but also enhances the safety of the operator.

In summary, the Lincoln Electric IM573 is an advanced welding machine that combines superior arc performance, user-friendly digital controls, and versatile welding capabilities. Its durable construction and safety features make it an excellent choice for professionals seeking a reliable solution for their welding needs. Whether in a workshop or on a job site, the IM573 stands out as a top-tier option in the welding machinery market.