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WELDING MACHINE preventive maintenance check list

1. Safety Precautions

Ensure all operators are wearing appropriate personal protective equipment (PPE).

Disconnect power supply before beginning maintenance.

Verify that the work area is clear of flammable materials.

Ensure proper ventilation in the work area.

2. Visual Inspection

Inspect the welding machine for any visible signs of damage or wear.

Check for leaks in hoses and connections.

Examine the power cord for fraying or damage.

Inspect the ground clamp for wear or damage.

3. Electrical Components

Test the power supply voltage and ensure it is within specified limits.

Check all electrical connections for tightness and signs of corrosion.

Inspect the circuit breaker for proper operation.

Verify that the control panel functions correctly.

4. Cooling System

Check coolant levels and refill if necessary.

Inspect hoses and connections for leaks or damage.

Clean the cooling fan and ensure it operates properly.

Ensure airflow is not obstructed around the machine.

5. Welding Accessories

Inspect welding leads for wear and proper connection.

Check the condition of the welding gun and replace any worn parts.

Inspect contact tips and nozzles for wear; replace if necessary.

Verify that shielding gas lines are intact and free from leaks.

6. Mechanical Components

Check all moving parts for lubrication and smooth operation.

Inspect the wire feeder mechanism and ensure it is functioning properly.

Verify that the drive rolls are aligned and in good condition.

Ensure all bolts and screws are tightened to manufacturer specifications.

7. Calibration and Testing

Verify that the welding parameters are set according to specifications.

Conduct a test weld to ensure the machine is operating correctly.

Measure the output voltage and current to confirm they meet requirements.

Document any adjustments made during testing.

8. Documentation

Record all maintenance activities in the machine's logbook.

Note any repairs or parts replaced during the maintenance check.

Schedule the next preventive maintenance date based on operating hours or manufacturer recommendations.

Review maintenance history to identify recurring issues or patterns.

9. Final Inspection

Reconnect power supply and check operation once again.

Ensure all safety guards are in place and secure.

Clean the workspace and dispose of any waste materials properly.

Communicate any findings or recommendations to relevant personnel.

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