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Expert Guide: Step-by-Step Tutorial for Cleaning Pump and Inline Filter on Folder Gluers


In the world of packaging, folder gluers are essential machines for creating perfectly folded and glued products like cartons and boxes. To maintain consistent product quality and maximize machine efficiency, regular cleaning and maintenance of the pump and inline filter are crucial. Over time, adhesive buildup, debris, and general wear can hinder performance, leading to downtime and potential costly repairs. This guide offers a detailed step-by-step tutorial for cleaning the pump and inline filter on folder gluers, ensuring your machine runs smoothly.


Why Cleaning is Important


Folder gluers handle adhesives in large quantities, and even high-quality adhesives can leave residues over time. The pump, which transports adhesive, and the inline filter, which prevents debris from entering the system, are particularly vulnerable to clogging and wear. Regular cleaning offers several benefits:


  • Ensures consistent adhesive application

  • Extends the lifespan of machine components

  • Reduces machine downtime

  • Prevents costly repairs

  • Maintains product quality


Now, let’s dive into the step-by-step cleaning process.


Step 1: Gather the Necessary Tools and Materials


Before you begin, make sure you have all the required tools and cleaning materials:


  • Wrenches or screwdrivers (depending on the pump and filter design)

  • Lint-free cloths or paper towels

  • A bucket for collecting adhesive residue

  • Cleaning solution (preferably a solvent compatible with your adhesive)

  • Protective gloves and safety goggles


Step 2: Power Down and Depressurize the System


Safety first! Ensure the machine is turned off and fully depressurized. Disconnect the power source to prevent accidental activation during the cleaning process. Wait for the adhesive system to cool down if it has been in operation.


  • Turn off the main power switch.

  • Relieve any pressure in the adhesive system by following the machine’s pressure release protocol.

  • Allow any remaining adhesive in the pump to drain into a bucket.


Step 3: Remove the Pump


Locate the adhesive pump. Depending on your machine model, the pump may be mounted externally or internally. Follow these steps to remove it:


  • Loosen the mounting bolts or screws holding the pump in place.

  • Carefully disconnect the adhesive supply line and return line from the pump.

  • Gently lift the pump out of its housing.


Pro Tip: Keep track of all screws and small parts in a separate container to avoid losing them during reassembly.


Step 4: Clean the Pump


With the pump removed, proceed to clean it thoroughly:


  • Use a lint-free cloth to wipe away any adhesive residue from the exterior.

  • Submerge the pump in a cleaning solution that is compatible with your adhesive type.

  • Gently scrub the pump components using a soft brush or cloth to remove buildup.

  • Pay special attention to any small openings or valves where adhesive may have accumulated.

  • Rinse the pump with clean water or another appropriate rinsing agent.

  • Dry the pump completely before reinstallation.


Step 5: Remove and Clean the Inline Filter


The inline filter is responsible for trapping debris before it can enter the adhesive application system. Here’s how to clean it:


  • Locate the inline filter, which is typically installed near the adhesive pump.

  • Unscrew or unclip the filter housing.

  • Carefully remove the filter element.

  • Inspect the filter for damage or excessive wear. If it’s damaged, replace it with a new one.

  • If the filter is reusable, submerge it in the cleaning solution and gently scrub away any debris.

  • Rinse the filter with clean water and allow it to dry completely.


Step 6: Reassemble the Pump and Inline Filter


Once both the pump and inline filter are clean and dry, it’s time to reassemble:


  • Reinstall the filter element into its housing and secure it properly.

  • Place the pump back in its original position and tighten the mounting bolts or screws.

  • Reconnect the adhesive supply and return lines to the pump.


Ensure all connections are tight to prevent any leaks during operation.


Step 7: Test the System


With everything reassembled, it’s time to test the system:


  • Reconnect the power source and turn on the machine.

  • Gradually increase the pressure to the recommended operating level.

  • Run a test batch to ensure the adhesive is being applied consistently.

  • Check for any leaks around the pump and filter.

  • If everything looks good, the machine is ready for production.


Additional Maintenance Tips


  • Establish a regular cleaning schedule: Depending on your production volume, set a schedule for cleaning the pump and inline filter weekly, biweekly, or monthly.

  • Use high-quality adhesives: High-quality adhesives, such as those from Lanco Adhesives, reduce buildup and minimize maintenance needs.

  • Train your staff: Ensure that all machine operators are trained in proper cleaning procedures to maintain consistency.

  • Keep spare parts on hand: Have spare pumps and filters readily available to reduce downtime in case of a component failure.


In conclusion, regular cleaning and maintenance of the pump and inline filter on your folder gluers are critical to ensuring machine longevity, consistent adhesive application, and minimal downtime. By following this step-by-step guide, you can keep your folder gluers in optimal condition, enhancing your production efficiency.


If you’re looking for high-quality adhesives that minimize buildup and improve machine performance, check out Lanco Adhesives. Our adhesives are specially formulated to deliver superior results, helping you keep your production line running smoothly.


Contact us to learn more about our adhesive solutions designed for the packaging industry.

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