Lincoln Electric Welding Inverter K3060-1 Code K3146-1 Flextec 650

SAFETY PRECAUTIONS: WARNING! ELECTRIC SHOCK can kill. Only Qualified personnel should perform this maintenance. Turn the input power OFF at the disconnect switch or fuse box before working on this equipment. Do not touch electrically hot parts.

Turned off the input power at the disconnect switch or fuse box?

Cleaned interior of machine with a low pressure air stream?

Made a thorough inspection of all components?

Looked for signs of overheating, broken leads or other obvious problems?

Note any problems uncovered during the visual inspection

Sign off on the welding machine inspection

SAFETY PRECAUTIONS: WARNING! ELECTRIC SHOCK can kill. Only Qualified personnel should perform this maintenance. Turn the input power OFF at the disconnect switch or fuse box before working on this equipment. Do not touch electrically hot parts.

Thermostats protect the machine from excessive operating temperatures

Excessive temperatures may be caused by a lack of cooling air or operating the machine beyond the duty cycle and output rating

If excessive operating temperature should occur, the thermostat will prevent output voltage or current. The meter will remain energized during this time.

Thermostats are self-resetting once the machine cools sufficiently

If the thermostat shutdown was caused by excessive output or duty cycle and the fan is operating normally, the Power Switch may be left on and the reset should occur within a 15 minute period.

Sign off on the thermal protection maintenance

• Only Qualified personnel should perform this maintenance.

• Turn the input power OFF at the disconnect switch or fuse box before working on this equipment.

• Do not touch electrically hot parts.

- Machine should be cleaned with a low pressure airstream

- Keeping the machine clean will result in cooler operation and higher reliability

- Be sure to clean these areas: • All printed circuit boards

SAFETY PRECAUTIONS: WARNING! ELECTRIC SHOCK can kill. Only Qualified personnel should perform this maintenance. Turn the input power OFF at the disconnect switch or fuse box before working on this equipment. Do not touch electrically hot parts.

VRD™ functionality can be verified by the indicator lights on the front of the power source. One of the lights will be illuminated at all times when VRD™ is enabled. No lights will be illuminated when VRD™ is disabled. VRD™ can be verified by cycling power as well. When VRD™ is enabled, the VRD™ indicator lights will illuminate for 5 seconds at power up and one light will remain illuminated.

Sheet metal case examined for dents or breakage?

Describe the condition of the sheet metal case

Keep the case in good condition to insure that high voltage parts are protected and correct spacings are maintained

All external sheet metal screws in place?

All external sheet metal screws must be in place to insure case strength and electrical ground continuity.