Panasonic MIG/MAG Arc Welding Power Source YD-350/500GY4

● Daily checks are not enough to keep the proper performance of this product for a long time.

● Perform the periodic check without fail. It is important to keep the proper performance of this product for a long time.

● In the periodic check, check the product thoroughly including checking and cleaning of the inside of this product.

● Conduct the periodic check every 6 months normally. If there is a mass of fine dust, oily smoke, etc. around this product, perform the regular check every 3 months as a guideline.

While details for checking are shown below table, consider any additional check items according to your conditions of use.

● Remove the top panel before cleaning.

● Blow off internally-accumulated dirt and dust by compressed air without moisture included (dry air).

● Perform the daily check without fail. It is important to make the most of the performance of this product and to secure the safety of daily operations.

● Check the items indicated in the following table, and conduct the cleaning and replacement of parts when necessary.

● For replacement of parts, make sure to use our genuine parts for Panasonic welding machine to keep its performance and functions

The withstand voltage test and the insulation resistance measurement shall be performed by service engineers specified by Panasonic representatives, or educated and/ or skilled persons who well understand and/or who are familiar with welders and electricity.

Performing the withstand voltage test and the insulation resistance measurement carelessly may damage this unit as the unit is equipped with semiconductor parts including transistors.

●If your internal regulations define to carry out these test, observe the following ”Test preparation” and “After completion of the test” and (The following procedure is explained under the condition with the top panel and the right and left panel removed.

●Prepare jumper cables (cross section 1.25 mm2 approx.) with a clip to short-circuit each device.

●When cables and connectors are disconnected, put tags or take notes so that they can be re-installed in place correctly.

●See also sections “Circuit diagram”, “Parts layout” and “Parts list”.

● Connection cables and signal wires

(1) Turn off power at distribution box (customer preparation) and then disconnect the input cables from the load side terminal of the distribution box and from the input power terminal of this unit. Turn off power to all related devices (jigs).