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Listing all posts with label Instructions. Show all posts.
  1. We created this troubleshooting guide to help with our most frequently asked questions regarding sealers.  

    Impulse sealers (hand, foot, automatic) work in a similar manner - often, if you are having a problem with your sealer, the solution can be found in the following parts:  heating element, PTFE adhesive, PTFE cover, microswitch, mounting spring, and/or timer.  Let us know if you have a problem that isn't listed in this guide and we can try and assist you.

    1. Check element and PTFE cover and adhesive. 
      • Element: This is the wire (flat or round) that heats up to seal or cut the bag/film. Remove the PTFE cover and check that the wire is not discolored, bent, or broken.  
      • PTFE Adhesive: This is the 1/2" piece with an adhesive backing UNDER the heating element.  It should extend past the seal area 1/2" on either side because it is the barrier between the metal machine and the metal heating element. For the PTFE adhesive, you must replace the bottom sealing strip whenever you change the element.  The adhesive serves as a barrier between the heating element and the sealer's body.  When the sealer's heating element has burned through the bottom adhesive and arc'ed on the sealer's body, the element will break as well as destroy the timer.  
      • PTFE Cover: The PTFE cover that goes over the heating element must be whole to prevent the plastic bags or film from sticking to the element. For the PTFE cover, we recommend changing the cover BEFORE it burns through.  As the cover wears, you will see a discoloration where it comes into contact with the element, you may also notice that your element is sticking to the thermoplastic material you are sealing.  You can maneuver the cover back and forth to allow the element to come into contact with the unused portions of the PTFE cover. If you are sealing/cutting a thicker plastic material (higher amount of heat) you may go through a lot of PTFE covers. 
    2. Listen for "click" from microswitch when pushing bar down. This click should occur right before the upper bar comes into contact with the lower. If there is no click try the following:
      • Hand Sealer: Slightly bend metal switch lever so that when arm of sealer is brought down, the lever makes contact with microswitch and a click can be heard.
      • Foot Sealer: Small bolt for limit switch must be tightened as needed to make contact with the microswitch.
      • Auto Sealers: A 3.5" screw that is mounted on upper jaw must be loosened so that it will make contact with microswitch which is mounted on left side of hinge bracket.
    3. Mounting Spring: Make sure that the spring the element mounts on is intact. Replace if damaged.  Please check also that the mounting spring is not rusted or worn in any way as this will prevent the element from conducting heat.
    4. Timer Light: The light on the timer should come on briefly when the seal bar is brought down for sealing. If it does not come on, the timer PC board probably needs replacing. 

  2. For the SINBO (DZ-280/A) light commercial vacuum sealer, we have found these directions quite helpful in order to get a great vacuum and seal.

    1) Turn the power switch off & open the top cover by lifting the lid gently. You may have to unlock the right side and left side lock.  Push down on one or both left &/or right corner spots marked lock to release the cover.

    2) Practice a few seals on your bag before starting the vacuum process to determine the time setting needed.  Adjust the seal time setting for the bag being sealed.  You can start at 3 or 4.  After sealing a few packages you may need to drop down a number or two because it will take less time to seal additional bags once you have been sealing consecutive bags.

    3) Now you can start the vacuum process - Extend the snorkel/nozzle by pulling the snorkel slide forward until it locks into place.  You will locate the snorkel in the upper center section of the sealer.

    4) Place the filled bag with one layer below the snorkel and one layer above the snorkel.  The bag will sandwich the snorkel.  The snorkel will be inside the bag.

    5) Close and lock the cover by pushing down on both the right side and left side lock. You will know it is locked when you hear it click in place.

    6) Turn on the power switch.

    7) Tips for getting the best vacuum: Make sure the product that is in the bag is placed evenly throughout the bag- best placement is in the center of the bag.  This will keep the snorkel from being blocked by the loose bag.  While vacuuming the bag you may need to rub the layers of the bag between your fingers if the loose bag blocks the snorkel.  The sound will change when the snorkel is blocked.  With a little practice you will soon be getting the best tightly vacuumed package.

    8) After the package reaches the correct tightness, momentarily push down with both hands on the seal bar and release and quickly push down again and hold the seal bar with even pressure until the seal light flashes and you hear the beep that indicates the seal is complete.  The reason that the seal bar is pushed down and released and quickly pushed down and held is to prevent the snorkel from being trapped in the sealing area. This is the best method for allowing the snorkel to retract fully.

    9) Push down on both the right side lock & left side lock until the cover releases and lift the lid and you can now remove the sealed bag.

    10) To seal the next bag, turn off the power switch and start at step 3) to begin the process of vacuuming the next bag.

    Note: When the SINBO vacuum sealer gets too hot you will hear a warning sound & the seal will become irregular. The machine should be turned off & allowed to cool. After a cool down, the machine will perform normally again. This warning sound is intended to protect the machine from overheating.

    Points to remember

    Do not try to extend the snorkel when the cover is down.

    Keep the bag from blocking the snorkel.

    Snorkel must retract fully before sealing the bag.

    Turn off the machine before starting the next bag.

    Here is a downloadable instruction set

  3. **Always unplug the unit from the power source before making any repairs.

    Removing the Replacement Kit

    1.  Remove the PTFE Cover. 

    Loosen the screws that hold the PTFE cover plates on both sides of the sealer body.  It is not necessary to remove the screws completely.  Lift the PTFE Cover to expose the heating element.

    2.  Remove the Heating Element. 

    On the 4" and 8" hand sealers, the front eyelet is held on by a screw and the rear eyelet is hooked on a bow spring (mounting spring).  Apply pressure to the heating element and unscrew the element screw (found at the front eyelet).  Lift the element off the rear bow spring.

    For the 12", 16", and 20" hand sealers, eyelets are hooked on by a bow spring on both ends.  Remove the element by releasing the eyelet off the front bow spring.  Using a screwdriver to flex the bow spring inward will ease the release.

    3.  Remove the PTFE Adhesive. 

    Peel the PTFE Adhesive from the sealer's body.

    Installing the New Kit

    1.  Replacing the PTFE Adhesive 

    Remove the backing on the adhesive.  Apply the adhesive to the sealer's body.  The adhesive must always extend past the sealing platform by approximately 1/4" to 1/2" on both ends.  Note:  The PTFE Adhesive works as a barrier between the body and element.  Never allow the element to come in direct contact with the sealer body as that will damage the timer.

    *A good rule of thumb is to replace the PTFE Adhesive every time you change the element.

    2. Replacing the Heating Element 

    On the 4" and 8" hand sealers, attach the rear eyelet of the element to the bow spring first and then the front eyelet of the element.  Apply pressure to the element with your figners when screwing the screw to prevent damage to the element.

    On the 12", 16", and 20" hand sealers, attach the rear eyelet of the element to the rear bow spring and position the front eyelet of the element into the front bow spring.  Using a screwdriver to flex the bow spring inward will ease the placement of the eyelet into the bow spring.  Check the element to ensure it is intact and not loose.

    3.  Replacing the PTFE Cover

    Slide the cover uner the PTFE cover plates on both sides.  Tighten the screws on the PTFE cover plates when the PTFE cover is positioned smoothly on top of the element.

    Note:  The PTFE cover prevents the plastic or any thermoplastic material you are sealing from sticking to the element.

  4. 1.  Plug in power cord and adjust timing dial to desired setting (a good starting point is 2 1/2).  For cut and seal (round element), adjust timer to the lowest setting that will seal and cut.

    2.  Insert contents in bag.  Place open end of the bag on the sealing pad.

    3.  To seal only, bring the sealing arm down (light pressure) on the bag and sealing pad.  Keep sealing arm down until the red light turns off, plus an additional 2-4 seconds to set the seal.

    3a. Cut and seal operation.  While the sealing arm is depressed, tear the package away with your right hand.

    4.  Example of sealed bag.  Cut and seal bags will not have bag material above the seal.

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