Arnquist packaging

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How to Fix DQL5545S/DQL5545SG Automatic L-Sealer

When the machine stops working, follow these simple steps to fix it. Always remember to turn off the power before starting any repairs.

1. Check the Power

  1. Turn on the Power Switch: Make sure the power switch is ON.
  2. Check the Fuse: Look at the fuse. If it is blown, replace it with a new one.
  3. Inspect the Power Cord: Ensure the power cord is plugged in properly and not damaged.

2. Check the Control Panel

  1. Check the Buttons and Lights: Make sure all buttons are working and lights are on.
  2. Test the Emergency Stop: Press the emergency stop button and then reset it.

3. Check the Air Supply

  1. Check Air Pressure: Ensure the air pressure is between 5-6 kg/cm².
  2. Inspect Air Hoses: Look for any leaks or damages in the air hoses.

4. Check the Conveyor Belt

  1. Adjust the Tension: If the belt is too loose or too tight, adjust it.
  2. Inspect the Belt: Look for any damages or wear on the belt. Replace if necessary.

5. Check the Sealing Knife

  1. Check for Damage: Look at the sealing knife. If it is damaged, replace it.
  2. Adjust the Pressure: Ensure the knife pressure is even on both sides.

6. Check the Heating System

  1. Set the Temperature: Make sure the sealing temperature is set correctly.
  2. Inspect Heating Elements: Look for any damage to the heating tubes. Replace them if they are broken.
  3. Check the Thermostat: Ensure the thermostat is working. Replace it if it is faulty.

7. Check the Sensors and Switches

  1. Inspect the Electric Eye: Make sure the electric eye is clean and working.
  2. Test the Limit Switches: Ensure the limit switches are functioning properly.

8. Check the Film Installation

  1. Install the Film Correctly: Follow the film-winding diagram to install the packaging film.
  2. Ensure Proper Clamping: Make sure the film is clamped securely.

Troubleshooting Tips

Problem Cause Solution
Power indicator off Power not turned on Turn on power switch
Blown fuse Replace fuse
Power switch damaged Replace switch
Film not cut Uneven knife pressure Adjust pressure
Damaged sealing knife Replace knife
Conveyor issues Loose belt Adjust tension
Tight belt Adjust tension
Damaged motor gear Replace gear
Sealing arm not moving Damaged solenoid valve Replace solenoid valve
Low air pressure Adjust pressure
Temperature issues Blown fuse Replace fuse
Damaged heating tube Replace tube
Damaged thermostat Replace thermostat

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