Table Top & Floor Model Chamber Vacuum Sealers

Sealing

The seal bar rebuilding kit contains one of each of the parts listed below:

3-Yard Roll: Seal Bar Teflon Tape (2"x 3 yd)
3-Yard Roll: Flat Sealing Wire (4mm x 3 yd)
3-Yard Roll: Bag Trimming Wire (.7mm x 3 yd)
3-Yard Roll: Seal Wire Insulator Tape (1"x 3 yd)

When using a torque wrench, we recommend a 3.5 or 4 foot pound maximum pressure.

If these guidelines are not followed, the plastic bladder could crack under pressure.

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

When using a torque wrench, we recommend a 3.5 or 4 foot pound maximum pressure. 

If these guidelines are not followed, the connector/jumper could snap.

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

The Teflon tape requires periodic replacement, entirely dependent on use. Please check the seal time in all programs. Seal time should not exceed 1.7 seconds for typical 3mil boilable bags. If the seal wires have burned through, even if just on a small section, you will need to replace the tape. 

Tip: The seal bar should always be clean and free of any burn marks. Any indication of burn marks means that the tape is starting to wear out. Not replacing the tape in a timely manner will cause other items to start wearing out and being damaged such as the sealing wires and Teflon that sits below the sealing wires. Damaged wires will cause inconsistent seal or no seal at all. 

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

Download:  MVS Seal Section Continuity and Voltage Test (pdf) »

 

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

If your seal bar is not sealing, there are numerous possiblities:

  1. Confirm your seal time is set at least to 1.5 seconds.
    → LED Display: How do I setup a program?
    → LCD Display: How do I setup a program?

  2. Reset the safety overload switch (not available on MVS 26X and MVS 31X).
    The safety overload switch is a safety feature on your vacuum sealer.
    If it has tripped, please contact a qualified technician or electrician.

  3. The vacuum pump is not reaching full vacuum.
    Please setup a test program with 75% vacuum and 2.5 seconds seal time.
    → LED Display: How do I setup a program?
    → LCD Display: How do I setup a program?

    • If the the seal bar has sealed with the test program, please change the pump oil and recalibrate your vacuum sealer.
      → How do I change the oil?
      → LED Display: How do I calibrate the vacuum sealer?
      → LCD Display: How do I calibrate the vacuum sealer?

    • If the the seal bar has not sealed with the test program, please run the test program again:

      → If the seal bar does not raise you may have an issue with the bladder assembly, please contact a qualified technician or electrician.
      → If the seal bar does not get hot (please touch it with your hand right after the air return), you may have an issue with the power assembly, please contact a qualified technician or electrician.

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

There are two possible causes:

  1. You have removed the teflon tape. Please apply new teflon tape to the seal bar.

  2. The sealing wire has burnt thought the teflon tape. You have lost the barrier between the sealing wire and the bag, that causes the sticking to the bag. Please replace the teflon tape on the seal bar.

    → How do I change the teflon tape on the seal bar(s)?
    → Order teflon tape for your vacuum sealer

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

The vacuum pump is not reaching its full potential, there are numerous possiblities why:

  1. Confirm your vacuum time is set to full capacity which is 99.9%.
    → LED Display: How do I setup a program?
    → LCD Display: How do I setup a program?

  2. Make sure the bag is not covering the suction line.

  3. Change the pump oil and recalibrate the vacuum sealer.
    → How do I change the oil?
    → LED Display: How do I calibrate the vacuum sealer?
    → LCD Display: How do I calibrate the vacuum sealer?

  4. If this has not fixed your issue, please contact a qualified technician or electrician.

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

1. Switch around seal bars (left to right and right to left)
Does problem follow seal bar?
YES = there is a problem with seal bar
Check cut/seal wires, continuity and for ground short on
seal bar.
NO = Please contact a qualified technician or electrician.

If you are a qualified technician or electrician who is experiencing this issue and would like a document to help troubleshoot, please see the link below. 

Download:  MVS Double Bar - One Side Is not Sealing (pdf) »


Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

  1. Remove the old Teflon tape from the seal bar.

  2. Using acetone and a paper towel, clean the sealbar thoroughly to remove the adhesive residue, oil, and other contaminant so that the new Teflon tape will adhere to the surface of the seal bar.

  3. Peel off the yellow liner of the Teflon tape and discard properly.
    Teflon 8
  4. Lay the Teflon tape on a clean flat surface with glue side pointing up.

  5. Align seal bar on the center of the Teflon tape. The seal bar surface with wires should be on the glue side of the Teflon tape.
    Teflon 7
  6. Carefully lift up the seal bar from the flat surface (making sure the Teflon tape is stuck on the seal bar) and gently run a finger on the Teflon tape to smooth out the Teflon tape on the seal bar. Fold the tape ends neatly under the seal bar.

  7. Slit the Teflon tape where it makes the bend around the seal bar and fold the Teflon tape toward the seal bar surface.                                                                                                                                        Teflon 8-1                                                                                                                                                                                                Teflon 9                                                                                                                                                                                                  Teflon 10                

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

  1. Remove Teflon tape. Using acetone and a paper towel, clean the sealbar thoroughly to remove the adhesive residue, oil, and other contaminant so that the new Teflon tape will adhere to the surface of the seal bar.

    Teflon 1

  2. Remove the retaining screw and the wires. Leave the metal strips attached at both ends. Add new insulator tape to the bar, covering the top surface completely so that the wires do not make contact with the bar itself. 

    Teflon 2

  3. Cut the seal and cutting wire length, leaving 4 inches over lap at both ends.

    Teflon 3

  4. Pull the new seal and cutting wire under the square anchoring plate while bending the wires upward.

    Teflon 4

  5. Tighten the retaining screw.

    Teflon 5

  6. Repeat steps 4 and 5 at the other end, pulling the wire tightly to remove any slack.

    Teflon 6

  7. Cut the Teflon tape to length, leaving 4 inches extra at both ends.

    Teflon 7

  8. Peel the Teflon tape and adhere it to the bar.

    Teflon 8Teflon 8-1

  9. Slit the Teflon tape where it makes the bend around the sealbar and fold the Teflon tape toward the sealbar surface.

    Teflon 9Teflon 10

 

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

Tools Needed:

  • Adhesive remover
  • Acetone
  • Paper towel
  • Cloth rag

Note* It is very important to thoroughly clean the surface before replacing the seal bar cushion. Oils accumulate preventing good adhesion to the lid.

Lid Preparation:

  • Remove the old adhesive using cloth rag and adhesive remover until the acrylic lid is clear.
  • Wipe area with a paper towel and acetone. The acetone provides a clean dry surface for the adhesive to stick to.


New Seal Cushion Installation:

 

  • Remove new cushion adhesive liner.
  • Align the new cushion on the seal bar with the adhesive facing the lid. If a metal track is present on the lid, massage lid cushion into metal track. 
  • Turn on machine. A program number will appear next to a P in the display.
  • Press the S button to show the vacuum percentage. Use arrows to set to 75%.
  • Press the S button twice, until the 3rd LED light is on for the sealing variable.
  • Using the arrows, set the sealing time to 2.0. Press S to save.
  • Close the lid to start the vacuum cycle. At the end of the cycle, check for good adhesion.
  • Firnly press down on the lid cushion by hand

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

Operational

Download:  How to use: Tray for Liquids (pdf) »


Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

Below is a document for download that explains how to place the bag properly. 

When opening the bag to add your product, please fold the opening of the bag inside out about an inch, to prevent contamination and to keep the edge of the bag dry for a good seal. 

"Snap" the bag once the product is inside to reduce the amount of wrinkles the bag has.

The bag should rest 1 inch over the sealing bar, the opening of the bag should barely rest against the body of the chamber.

Download:  MVS Bag Placement (pdf) »

 

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

CAUTION: PLEASE SWITCH OFF THE MACHINE AND UNPLUG THE POWER CORD FROM THE SOCKET BEFORE ANY CLEANING OR MAINTENANCE IS STARTED.

We recommend sanitizing the inside of chamber before each use and after each use.
The chamber should be thoroughly cleaned and sanitized during use if the products you are packaging change drastically, such as between raw meats and dried goods.
Be careful spraying around the posts that the seal bar rests on. Do not spray into the opening because liquid can pool in the bladder assemby and corrode the electrical connection.

All the internal and external surfaces of the machine are then washed thoroughly with hot soapy water and then rinsed.

The lid can be cleaned using warm water and soap.

The seal bar can be lightly sprayed with a sanitizer/disinfectant and wiped down, but should not be submerged in liquid.

The stainless steel body can be cleaned with a stainless steel cleaner.

The volume boards should be taken out and scrubbed in a large sink using hot water and soap.

HACCP Standards vary from state to state; this cleaning process is meant as a general guideline.

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

PREVENTIVE MAINTENANCE
1. Lid gasket
- Make sure lid gasket and the contact area is clean to ensure proper sealing during vacuum process.
- Particles in the lid gasket area will cause bad contact between the lid and the body.


2. Sealbar
- Make sure the teflon tape is clean with no burn through lines on it to ensure proper sealing of the
pouches.
- If the Teflon tape has burnt through, replace it immediately to avoid bad sealing on the pouches and
burning the upper red silicone strip.
NOTE: Proper sealing time will produce a waffle pattern on the sealing line of the pouch.
Too high of a sealing time will melt the pouch and burn the Teflon tape sooner.

We recommend a seal time of 1.5-2.0.

3. Oil
- Oil level and oil condition should be checked weekly, and a conditioning cycle should be ran weekly as well.
(Level and condition should be checked before production begins when the machine is cool.)
- If oil is murky, cloudy, has "floaties" or sediments in it, then it must be change immediately.
Contaminated oil can cause pump to be inefficient, sluggish, or even tripping the electrical
breaker. 

- Please see MVS Series Oil Information for further information.

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

Never lay a vacuum sealer on its side.
Pump oil can bleed into the filter, sensor, and chamber creating numerous issues.

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

To change the printer label tape, hold down the green button and pull top left corner towards you. This will open the printer door. 

printer

When reloading the label tape, please make sure the tape is feeding out of the top, not the bottom, of the roll. See picture.

printer 2

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

Oil Change

*Please make sure to drain current oil and replace drain cap before flushing oil is used.

Remove the fill cap. 

Add flushing oil until the level is at the half-way mark on the sight glass. Replace fill cap. 

Run the pump by either opening and closing the lid, or manually pressing the micro switch located at the back right of the chamber. 

After 15-20 cycles, the pump should be warm and the oil should have been circulated through out. The more cycles ran, the better the oil can flush the moving parts of the pump. 

If the flushing oil becomes thick or milky during this process, please drain and refill with new flushing oil. Once the flushing oil that is drained after completing a flush looks similar to the oil that was added, it is more than likely clean. 

Remove drain plug and drain flushing oil from the pump. Replace drain plug.

Remove fill plug and refill with operating oil. Replace fill plug and reassemble.

 

 

During the vacuum process, the oil becomes contaminated due to moisture in the products packaged.

These contaminants can settle to the bottom of the oil, creating a wedge between the vane, rotor and cylinder.

This wedge will bind the pump making it impossible to turn and cause the pump to overheat or seize.

bound

Oil, when compared to the cost of a new vacuum pump, is very inexpensive. Vacuum pumps require the proper lubrication to operate efficiently. During applications that involve vacuum sealing liquid items, some may hinder the condition of the oil by adding moisture or contaminants and reacting to process gases to form sludge. Regular oil monitoring, as well as regular oil changes can help prevent this. We also recommend running the conditioning program on a weekly basis or as needed. A conditioning program warms up the pump to operating speed in an effort to burn off moisture.

 

 

 

 

 

 

 

 

 

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

There are 3 possible causes of leaking oil in a vacuum packaging machines. 

1. The oil was overfilled. The oil should only be at the half way mark in the sight glass.

2. The machine was tilted or layed on its side. 

3. The pump or filter is clogged. 

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

The conditioning program ensures that the pump is thoroughly rinsed. During the program the pump and oil reaches operating temperature so that the oil can better absorb any moisture and contaminants and filter them. The high temperature enables any moisture in the pump to evaporate minimizing the risk for corrosion in the pump.

MVS20:

The program lasts 15 minutes and it is advisable to run it at least once a week. Turn on the machine, press the key conditioning program and close the lid. The program runs automatically. During the program the display will show moving dots. The program can be interrupted at any time using the stop key. It is important for the program to complete a full 15 minute cycle and advisable to only interrupt the cycle for something urgent.

X Models:

Use P09- Set the vacuum at 99.9% and Extra Vacuum to E30.

Run machine for 5-10 cycles to warm up the pump assembly and help burn off and filter contaminants. 

XP Models:

Toggle to the second page in program 1 by using the "S" button, where you will see advanced functions "VE SA CP AS SI IC LT" along the bottom of the display. Use the down arrow to highlight CP and press the left or right arrow key. This should add an "X" underneath the CP option. Close the lid and this will start a 4 minute condition cycle. 

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

 

 

We recommend the following:

If the room where the machine is located is under 60 degrees Fahrenheit, use a 15 weight non detergent oil for all machines. 

If the room where the machine is located is over 60 degrees Fahrenheit, use a 15 weight non detergent oil for table top units and MVS 52 115V.

If the room where the machine is located is over 60 degrees Fahrenheit, use a 30 weight non detergent oil for swing lid models and floor models.  

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

As the pump cools, the moisture and contaminants start to separate in the pump and when drained, the contaminants cling to the walls of the pump, causing the new oil to quickly become contaminated when added. 

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

Vacuum sealers perform best when good oil conditions are maintained. Not keeping up with routine oil changes will cause damage to the pump assembly and incur unnecessary expenses. Following our recommendations of preventative maintenance will prolong the life of your machine.

We recommend to change the pump oil on your vacuum sealer based upon the following packing:
 
  •  Wet/Damp Products: every 3 - 6 months
  •  Dry/Solid Products: every 9 - 12 months

This is just a standard guideline. Oil change is dependent on use, but clear oil should be visible in the sight-glass, located on the rear of the machine. Oil that is dirty or has visible debris must be changed immediately. 

Oil can be murky or emulsified, and this is normal. Emulsified oil is a sign that a conditioning cycle needs to be run.

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

Before draining out the oil, we recommend to run a couple of cycles to warm up the oil.

  1. Carefully remove the machine back cover using the supplied 2.5mm hex wrench.

  2. Carefully remove the lower oil fill plug using the supplied 5mm hex wrench.
    Caution: Have a catch basin under the machine for the oil to drain into and dispose of used oil according to regulations.

  3. Replace the lower oil fill plug tightly.

  4. Carefully remove the upper oil fill plug using the 5mm hex wrench.

  5. Add non-detergent pump oil until it reaches the middle of the sight glas on the pump.

  6. Replace the upper oil fill plug tightly.

  7. Carefully reassable the removed machine back cover using the 2.5mm hex wrench.

  8. Turn power switch to the ON position and cycle the vacuum sealer a minimum of three times.

  9. Calibrate the vacuum sealer before operating to assure proper vacuum pressure levels.

→ What Oil Kit do I need for the vacuum sealer?
→ LED Display: How do I calibrate the vacuum sealer?
→ LCD Display: How do I calibrate the vacuum sealer?

 

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

Tools needed:

  • 2.5 mm hex wrench
  • 10 mm socket wrench 
  • 5 mm hex wrench
  • Long screw driver
  • 7 mm socket wrench
  • Small mirror

 

  1. Remove the back panel using the 2.5 hex wrench.

  2. Raise and support the back end of the machine to about 6 inches.

  3. Remove the pump mounting bolts using the 5 mm hex wrench

    exhaust-filter-45-1

  4. Carefully move the pump around to expose the exhaust filter cover.

  5. Remove cover and 4 bolts using the 10 mm socket wrench.

    exhaust-filter-45-2

  6. Loosen the filter retaining bracket bolt using the 7 mm socket wrench and remove it.

  7. Pull the exhaust filter out along with the filters O-ring.

    exhaust-filter-45-3

  8. If the O-ring is stuck around the port hole, remove it using a long screwdriver.

    exhaust-filter-45-4

  9. Insert new exhaust filter with O-ring and reverse steps 6) through 1), using the mirror to align the pump mounting bolt holes together.

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

  1. Carefully remove the machine side cover using the supplied 2.5mm hex wrench.

    exhaust-all-1

  2. Using pliers carefully unscrew the cover protecting the exhaust filter.

     exhaust-all-2

  3. Using a flat blade screw driver carefully remove the exhaust filter.

     exhaust-all-3

  4. Replace exhaust filter and reassemble all covers removed.

    exhaust-all-4

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

If you are changing the exhaust filter, part number FM720234, and there is a shaft that does not allow the filter to enter the exhaust port, the shaft must be removed. 

The shaft is threaded on one side and screws into the port. 

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

If there is oil in the chamber, there are two possible reasons why:

  1. Check oil level. It should be at the half way mark in the oil-sight glass of the pump. Over -filling the reservoir can cause "back-suction" from the pump and "shoots" the oil into the chamber during air release. Also, we recommend replacing the filter after every oil change. A clogged filter could also cause oil to "shoot" into the chamber.

  2. If the machine was tilted or laid on it sides, oil can move in to the hoses and components. This oil can "shoot" itself into the chamber during the air release cycle. Please keep machine leveled.

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

Technical

Vacuum can be started up quiet easily from just a small touch from the lid to the micro-switch, to adjust the lid. Loosen up screws from the back of the lid on both the left and the right side. 20150812 103312

The display fuse on an MVS 45 is located on the side of the contactor labeled QM2.

display fuse

Many applications being used contain liquid when vacuum sealing inside the chamber. We always recommend that an angel tray kit for liquids is used. 

To assist in keeping these liquids from entering the bladder, we have added 2 "O" Rings to the bushing. 

These "O" Rings serve as a gasket to help protect the bladder. A photo of the new style bladder bushing can be found below. 

New Bladder Bushing

A clog in the oil cooler or oil tubing, prevents the proper circulation and can cause many problems.

To determine if there is a clog, check the temperature at the oil tubing coming from exhaust box, down the back end to the round oil cooler.
The temperature taken at the oil tubing should be about the same (+- 10 degrees) as the temperature measured at the side of the exhaust box.

If there is a big difference in the 2 temperatures, it may indicate there is a clog.

cycle

1. Lid switch or start button starts the vacuum cycle.

2. Control board sends signal to the vacuum pump to start pulling out all the air from the chamber.
a. The air release valve (normally closed setup) is opened to the vacuum pump and closed to the
atmospheric pressure.
- this is to ensure the final vacuum pressure is attainable
b. The seal valve (normally closed setup) is closed to the atmospheric pressure and open to the vacuum pump.
- this is to prevent the seal bladder from pushing the seal bar upward and pinching the bag

3. Vacuum sensor on control board receives final vacuum pressure and control board sends stop signal to
vacuum pump.

4. Control board sends out signal to seal valve and seal transformer for the set seal time.
a. Seal valve receives signal to open to the atmospheric pressure and pressure difference pushes bladder up and raises seal
bar against seal cushion.
b. At the same time seal transformer receives signal and energizes the seal wires to seal the bag.

5. Control board sends signal to air release valve to open to atmospheric pressure.
a. Pressure in the chamber and outside equalizes; spring in bladder retracts to bring seal bar down
Lid can be opened.

6. Control board sends signal to air release valve and seal valve to close for the next vacuum cycle.

Download:  MVS 45 Series - Lid Shocks Replacement (pdf) »


Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

Download:  MVS Solenoid Valve Testing (pdf) »

 

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

1. If the machine is not equipped to receive gas and the gas function is programmed, the machine will not work. The gas flush function light will blink continuously until it is reset to zero.
2. Gas or gas mixture must be regulated between 15 to 60 psi before connecting to the gas inlet on the machine.
3. The higher the pressure, the higher the force or velocity of gas will come out of the nozzle. High pressure can move the bag from the nozzle or the sealing bar or cause the bag to be crooked on the seal bar.
4. If bag contains powdery substance, the gas injection may cause the powder to expand and over flow out of the bag and into the chamber.
5. Gas flush function can be set from program P1 through P8 on the MVS X series machine.
6. During programming mode, each light will light up to accept the programming.
a. Vacuuming – picture with arrow pointing out of the package( left most LED light on the keypad)
b. Extra vacuum – using the same picture with arrow pointing out of the package
c. Gassing – picture with arrow pointing into the package
d. Sealing – picture of 2 triangles on top of each other at opening edge of package
e. Air release – picture of arrows pointing toward outside the package (right most LED light on the keypad)
7. The vacuum % must always be higher the gas %.The residual vacuum % between vacuum % and gas % should be higher than 60%. This is to ensure proper sealing of the package.
8. Example 1.
a. Vacuum 99.9%
b. Gas 40%
c. Residual vacuum = 99.9 – 40 = 59.9%
9. Example 2.
a. Vacuum 75%
b. Gas 15%
c. Residual vacuum = 75 -15 = 60%
10. Over-gassing will only waste the gas inside the chamber. Choose the lowest gas % possible to give the best pillow effect of the package.
11. Nozzle should be inside the bag and the bag holder under the lid should be over the nozzle. This will ensure the bag is pinched between the holder and the nozzle when the lid is closed.
12. The bag should also lay flat with no wrinkle and no fold-over on the seal bar for a good seal.

Download:  Gas Kit - Important Notes (pdf) »

 

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

Download:  3 Phase Machine Installation (pdf) »


Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

If the air is not returning to the chamber at the end of the cycle, please check the following if you are a certified technician or electrician:

1. On the keypad, does the fourth LED light come on when air is supposed to be returning to the chamber?

If no, it is more than likely your control board.

If yes, the possibilities include:

Check the connection from, control board to wire harness.

Check the 2 wires that go to the air release solenoid as they should measure 120V.

If they are not measuring at 120V, control board is more than likely the issue.

If they do measure at 120V, check voltage at the solenoid connector, make sure it measures 120V.

If the voltage at the solenoid connector does not measure 120V, possible bad connector or loose wire.

If the voltage at the solenoid connector measures 120V, check the devac valve solenoid by hot wiring directly with 120V power.

If it engages the valve, the valve is good. 

If it does not engage the valve, the valve and solenoid need to be replaced.

 

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

 

On all MVS floor model series (50, 52-208v and 65) lines are numbered L1, L2 and L3.

For all 3 phase MVS floor model series, connect high/wild leg to LINE 3. 

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

1. Check oil and filter. Not regularly changing your oil can negatively affect the way in which your pump runs. 

2. Check that safety switches have not been triggered. If you can push in any of the buttons underneath the front right corner of the machine back up, this means one of them has been triggered due to a power issue. 

3. Make sure there is a set value in the vacuum percentage in the program you are using. 

4. If there are lights blinking on your display, more than likely you have programmed gas. Make sure if you are not using inert gas and that the values displayed are 0.

5.Manually press on the micro lid switch on the back of the chamber to see if that is the issue. 

6. Try to recalibrate the machine. 

For technicians-

Check microswitch, contactor, all connector wires, control board, and fuses(both on the control board and at fuse box).

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

Download:  MVS Bladder Continuity Test (pdf) »

 

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

First and most importantly. the gas pressure must be regulated before connecting to the machine.

Operating pressure is between 15 to 25 psi.

Maximum pressure is 58 psi.

The gas pressure must be constant at the machine.

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

 

tub removal 1

1. Turn power off and unplug machine.
2. Remove body rear panel and disconnect microswitch
wire at the connectors.
3. Carefully remove left and right shock-to-lid screws
(Lid will rest in the groove)
4. Remove left and right lid hinge screws.
(Top hinge block set screws might have to be loosened to ease hinge
pins removal.)
5. Stand behind machine, while carefully holding and
balancing the lid, remove left and right hinge pins.
6. Carefully lift the lid away from the hinge blocks.
7. Remove left and right body-to-tub screws.

tub removal 2

8. Pull out the sealbars.
9. Pull out the white bushings.
10. Carefully loosen and remove lock nuts.
11. Bladders will drop down.

(Make sure to save the o-rings.)

tub removal 3

12. Carefully lift tub out of body and place
support between tub and body.
13. Loosen hose clamp and slide hose off
elbow.
14. Remove the hinge blocks from tub.
(Please note the orientation of blocks before removal.)
15. Remove the lid shocks.
(Please note orientation of shocks before removal.)
16. Remove microswitch bracket.
(Please note orientation and height of
microswitch before removal)

 

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

microswitch

1- Turn off machine and unplug from outlet.
2- Remove left and right tub-to-body retaining screws (left and right side edges of the tub).
3- Lift the tub out of the body and rest the tub on blocks of wood.
BE CAREFUL because tub is heavy and top edges of body is sharp.
4- The micro-switch is at the rear left side of the tub.
5- The microswitch is mounted on a bracket which is held by 2 screws to the body of the tub.
6- Before removing the old microswitch, please observe the height of the switch in reference to the opening
on the mounting hold. This is to determine the engagement distance between the bottom of the lid and
top of the micro-switch.
7- Disconnect the 2 lead connectors and remove the old micro-switch.
8- Install the new micro-switch. Check the engagement distance of the micro-switch. It should engage when
front of the lid is about 2 to 3 inches before closing completely. Adjust the height as necessary.
9- Reconnect the micro-switch connectors, plug machine into power outlet and turn on machine. Close
the lid and make sure the cycle starts when the switch is engaged at 2 to 3 inches before lid closes to the
tub. Readjust microswitch height as necessary.
10- Carefully place tub back into the body and reinstall the tub-to-body retaining screws.

 

 Our advice is stricly limited to the question(s) asked and is based on the information provided to us. Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

Important Notes:

  1. Gasket is shipped at a slightly longer length than needed. A final trimming must be done to ensure proper lid seal.
    See download below for installation procedures.

    Approximate shipping lengths:
    MVS 31X / 31XP = 45 inches
    MVS 41X / 41XP = 73 inches
    MVS 45X / 45XP = 69 inches
    MVS 45XII / 45XPII = 69 inches
    MVS 45LXII / 45LXPII = 69 inches
    MVS 48 / 48DV = 86 inches
    MVS 50X / 50XP = 94 inches
    MVS 65X / 65XP = 108 inches

  2. DO NOT pull or stretch the gasket to ease the installation of the gasket into the groove.
    Gasket will stretch during insertion due to narrowness of the groove in the lid.
    The narrow groove will ensure gasket stays in place.

  3. DO NOT use any kind of powder, lubricant or glue to install the gasket.

Download:  MVS Lid Gasket Installation (pdf) »

 

Our advice is stricly limited to the question(s) asked and is based on the information provided to us. Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.


In cold environments, the oil becomes heavy, causing the amp pull to become higher. 

We suggest to increase the breaker to an 18 AMP breaker.

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.

Moisture working its way into the bladders is what can create the majority of issues that lead to bladder replacement.

Minipack highly recommends to use an angled tray for liquids to prevent these issues from occurring and decrease oil contamination. Order an angled tray for liquids today to prevent bladder issues.

Other possible issues:
The sealing bar on the machine has one of the following symptoms:

  • Loss of continuity
  • Loss of bag vacuum
  • Inconsistent sloppy seal
  • Raises unevenly
  • Lacks contact with red lid cushion

Important: The following instructions to be performed by Certified Technicians only!

Estimated bladder removal and bladder rebuild time: 1.5 hrs per sealing bar
(We recommend rebuilding all bladders per sealing bar at the same time)

bladder-aaa

Tools needed:

  • Phillips screwdriver
  • Pliers
  • 2.5mm allen wrench
  • 7mm socket
  • Heat gun
  • Loctite
  • Acetone
  • Clean cloth

 

Step 1: Remove bladder

  1. Disconnect vacuum hose and electrical transformer from bottom of the bladder and remove the locking nut inside the chamber that holds the bladder in place.

bladder-1


Step 2: Disassemble bladder

  1. Use pliers or vice grip to tightly grip steel post against the white bushing to keep spring inside from releasing too fast.
    Caution: Spring is in tension!

  2. With a Phillips screwdriver carefully remove all (8) screws that hold the upper and lower body of the bladder together.

  3. Slowly separate the two bodies from each other, and remove spring between them.

  4. Remove old bladder gasket. Use a clean cloth and Acetone to clean all parts of the bladder.

bladder-2


STEP 3: Reassemble bladder

  1. Replace gasket

    Align the holes of new gasket with notches on lower bladder body.

    bladder-3a


  2. Replacing the inner wire

    1. Loosen thread locker by using heat gun to heat bottom section of metal post on center disk.

    2. Grip the metal post on the bottom side of center disk with pliers. Use 2.5mm allen wrench to loosen and remove screw on back side of disk. Remove old inner wire and replace with new inner wire.

    3. Install metal post on disk by applying some Loctite on half of the screw (section closest to screw head). Tighten screw as much as possible.

    4. Use the 7mm socket to loosen and remove screw on upper bladder body. This will also remove the locking nuts and washer on top of upper bladder body. Replace wire and re-apply locking nuts.

    Apply washers/nuts in this order from bladders piece up: locking washer, locking nut, wire, locking washer, locking nut as in photo 3b-4 below.

    bladder-3b



  3. Assemble bladder body

    1. Set 4 screws into lower bladder piece in "x" formation ready to be inserted into upper bladder body (photo).

    2. Set coil on metal post. Insert metal post into upper bladder body, and white bushing on top over metal post.

    3. Push center disk upwards and tightly clamp metal post against white bushing with pliers to keep spring tight.

    4. Connect upper and lower bladder bodies together by carefully aligning marker strips located on their sides, and quickly screwing in the 4 screws. Insert other 4 screws and tighten.

    Apply 10 lbs of pressure on locking nuts when installing bladder back into chamber of machine.

    bladder-3c

 

Bladder Shaft (removal & installation)

1. Remove bladder assembly from chamber

2. Carefully split the top portion of the from the bottom part. *note: refer to document "how do I rebuild the bladders?" 

3. Hold the bladder shaft with a locking plier

4. Heat the shaft witha heat gun (not a torch) on high for 30 seconds.

5. Carefully loosen the screw with a 2.5mm/hex wrench

6. Install new shaft & inner wire onto disk. Note: use a drop of lock-tight glue on tip of screw before inserting into shaft.

IMG 2245

 

Minipack does not assume any responsibility or liability for the advice given and shall not be liable for any direct, indirect, special, incidental or consequential damages in connection with the use of this information.