1. When the pressure plate of the PUR hot-melt adhesive machine is taken off the barrel, the air pressure should be gradually increased from small to large. In any case, the hot-melt adhesive machine is not allowed to use high-pressure gas to take off the barrel directly to avoid accidents.

2. When cleaning the heating pressure plate of the PUR hot melt adhesive machine, the staff must wear special high temperature resistant hot melt adhesive machine protective clothing, wear high temperature resistant gloves, and do not allow the skin to touch the hot melt adhesive barrel, molten PUR hot melt adhesive and heat High-temperature parts such as plates to avoid burns.

3. After the pressure plate of the PUR hot-melt adhesive machine is separated from the hot-melt adhesive barrel, the residual PUR hot-melt adhesive on the hot-melt adhesive pressure plate must be cleaned immediately. When cleaning the heating plate of the PUR hot-melt adhesive machine, no hard Quality tools to prevent scratching the pressure plate Teflon coating. The cleaning time of PUR residual glue should not exceed 10 minutes.

4. After cleaning the pressure plate of the PUR hot-melt adhesive machine, immediately press the pressure plate into a new PUR hot-melt adhesive barrel to avoid exposing the pressure plate to the air for a long time. When pressing the pressure plate of the PUR hot melt adhesive machine into the rubber barrel, you can properly apply a small amount of silicone oil on the sealing ring of the pressure plate for lubrication, so as to generate lubrication between the pressure plate and the rubber barrel, and protect the use of the sealing ring. When pressing the heating plate into the rubber barrel, the air pressure of the lifting cylinder should be from small to large. Do not use high-pressure gas directly to prevent accidents and pay attention to the safety of operators.

5. When the heating pressure plate of the PUR hot-melt adhesive machine is pressed into the new polyurethane rubber barrel, the overflow valve should be opened to discharge the residual air in the glue barrel, and the PUR hot-melt adhesive with air bubbles should be removed to avoid contamination. The polyurethane hot melt adhesive of the air flows into the pump body and the throat of the hot melt adhesive machine. Put the pressure plate of the PUR hot melt adhesive machine into the polyurethane hot melt adhesive barrel and remove the air, then lock the overflow valve. At this time, the air pressure in the stroke cylinder can be appropriately increased to make the work smoother.

6. After changing the PUR hot melt adhesive, you must wait for the PUR hot melt adhesive machine to heat up for at least 20 minutes before starting the gear pump and motor. If you start the gear pump and motor immediately, it will cause damage to the gear pump of the glue machine and reduce the use of the glue machine life.