HUALIAN HVC-260T/1A User manual

CONTENT
Preface.......................................................... 1
A. Product Description
1. Product Usage............................... 2
2. Products Features......................... 2
3. Operation Principle........................2
4. Main Components......................... 3
B. Security
1. Preparation..................................... 4
2. Notice for Security......................... 4
3. Operating Environment................ 4
C. Carrying &Storage
1. With Carton Packing..................... 5
2. Storage for Short Time…………..5
3. Storage for Long Time…………..5
4. Restart after Storage.....................5
D. Installation
1. Prerequisite for Installation.......... 6
2. Environment for Installation......... 6
3. Filling Oil......................................... 6
4. Connecting Electricity................... 8
E. Start & Commissioning
1. Power on.......................................10
2. Standard Operation.....................11
3. Optimal Packing.......................... 11
F. Standard Operation & Parameter
Setting
1. Control Panel............................... 12
2. Parameter Setting....................... 13
3. Optimal Parameter......................14
4. Packing Liquid Products............ 15
5. Instruction of Controlling
Program’s Cycle.......................... 15
G. Maintenance
1. Standard Maintenance Schedule... 17
2. Vacuum Pump Maintenance........... 17
3. Special Oil for Vacuum Pump…..19
4. Replacing Filter……………………..20
5. Replacing Teflon Cloth & Heating
Wire..................................................... 2 1
6. Replacing Silicon Strip..................... 2 3
7. Replacing Sealing Rubber...............2 3
8. Replacing Fuse……………………..23
H. Troubles & Solutions
1. Troubles & Solutions of Machine
Body................................................... 2 5
2. Troubles & Solutions of Vacuum
Pump.................................................. 2 6
3. Troubles & Solutions of Solenoid
Valve...................................................2 6
4. Troubles & Solutio ns of Seal ing
Device................................................ 2 7
5. Error Code.........................................2 7
I. Breakdown Drawings
1. Breakdown Drawing of Vacuum Lid
.............................................................2 8
2. Bre akd o w n Dr awi n g of Va cu u m
Chamber............................................ 2 9
3. B r e a k d o w n D r a w i n g o f H u l l &
Bottom-plate………………………..30
4. B re a k do w n Dr a w i ng o f Se a l i n g
Epoxy Plate Assembly…………….32
5. Breakdown Drawing of Air Chamber
Assembly……………………………33
J. Electric Circuit Diagram……………...34
K. Gas Circuit Diagram…………………..35

1
Preface
Thank you very much for your choice of our HVC-260T/1A Table-style Vacuum
Packaging Machine!
The content of this instruction is as following:
Product Description
Notice for Security
Carrying & Storage
Installation & Commissioning
Operating Guide
Maintenance & Repairing
Troubles & Solutions
Spare Parts
This manual introduces the installation and Operation of the product, the following items are
included: Carrying, Storage, Installation, Startup, Operating condition, Maintenance, troubles
& solutions and Repairing.
Notice:
Please read this introduction carefully and understand it thoroughly before using.
Make sure this introduction is possessed by the operator or the managerial personnel of
this product.
Please retain this manual after reading and make sure it is available for reference if any
needed.
Any questions, please contact the manufacturer or distributor.
Responsibility:
This instruction is specially edited by great care. The manufacturer is irresponsible for
the mistakes or the results caused by user’s misunderstanding.
The manufacturer is irresponsible for the damage or problems raised by having not
adopted the specified spare part.
The manufacturer has the right to amend the parameter or change the spare part with
no further notice given to the buyer.
The manufacturer reserves all related rights. Don’t reprint any part of the instruction
without our written permission.
Terms:
Teflon Cloth, is PTFE Coated Fabric. It features high temperature resistance and nonstick.
Heating Plate Assembly, consists of Aluminum Profile (or Epoxy Plate), heating wire, Teflon
cloth, etc.

2
A. Product Description
1. Product Usage
HVC-260T/1A Table-style Vacuum Packaging Machine possesses the advantages of
superior function, easy operation, simple maintenance, wide application etc. It applies to the
soft packing material such as composite film or aluminum-plastic composite film and so on. It
can pack grain, food, fruit, seed, medicine, chemical product, electronic product, precision
instrument and meter, rare expensive metal etc, that in solid, liquid, powder or paste shape.
The products after packing can be prevented from oxidization, mildew, moth, rot and damp,
so the quality and freshness is guaranteed and the food’s storage period is prolonged.
2. Products Features:
It is easy to operate this machine. The whole procedure after closing the organic glass
vacuum lid, including vacuuming, heat-sealing, label printing, cooling while pressure
maintaining, air-in till lifting the vacuum lid, is completed automatically
With internally installed power cord for heat-sealing, no power cord in vacuum chamber, its
electric circuit is designed to be safe & reliable and replace heating wire easily & fast.
The widely adjustable sealing temperature enables it apply to the packing bags with
different materials and thickness
There is an emergency stop switch in the control panel. If any problem in the extracting
process, to press STOP to interrupt the packing procedure and return to standby state.
3. Operation Principle:
Put the bag in the vacuum chamber and close the vacuum lid. Startup the machine, then the
vacuum pump runs and will form a vacuum space between the vacuum lid and the vacuum
chamber. After the vacuuming is finished, due to the air pressure difference between inside
and outside of vacuum chamber, the airbag or the cylinder will force the heating plate to lift to
press the bag mouth. The flat heating wire in the heating plate will become hot to heat-seal
the bag mouth when it is connected with low-voltage heavy current. Then the vacuum
chamber is filled with air after cooling down, and the whole vacuum packing is completed.
There’s a one-way check valve installed in the air supply opening of vacuum pump, to avoid
the oil-mist generated by the vacuum pump backflow to the vacuum chamber. (Only applies
to vacuum pump XD-08).
There’s a oil-mist filter installed in the air exhaust opening of vacuum pump, to avoid the
exhausted air from vacuum pump contains oil-mist. (Only applies to vacuum pump XD-08).

3
4. Main Components
No.
Components Name
Remark
1
Hull
Stainless steel
2
Vacuum chamber
Stainless steel
3
Vacuum lid
Organic glass
4
Silicon strip
5
Sealing rubber
6
Heating plate
7
Air hole
8
Power switch
9
Control panel
10
Nameplate
11
Oil-level indicator
12
Power socket
3
4
3
5
7
6
2
1
9
8
10
12
14
11
12
13

4
13
Fuse tube
14
Fuse tube base
B. Security
1. Preparation:
This instruction is a detailed description of the Carrying, Storage, Installation, Startup,
Operating condition, Maintenance, troubles & solutions and Repairing.
It is recommended that the machine be installed by trained professional worker.
Please do abide by the maintenance instruction.
Please read this instruction carefully and understand it thoroughly before using.
Any problems, please contact the manufacturer or distributor.
2. Notice for Security:
This machine is produced as per the latest technology and security standard. There
maybe danger or damage under improper operation. Please notice the keywords
“DANGEROUS”, “WARNING”, “TAKE CARE”.
E.g.:
DANGEROUS!
Ignorance of this notice will lead to damage even fatal
accidence.
WARNING!
Ignorance of this notice will lead to damage even fatal
accidence.
TAKE CARE!
Ignorance of this notice will lead to injury or property loss.
3. Operating Environment:
This product is designed to run under room temperature. If the environment is in bad
condition, such as corrosive atmosphere or temperature is over 35 ℃or lower than 5 ℃,
please contact the manufacturer or distributor
The vacuum pump oil can be separated in maximum extent during its running, but not totally
separated.
TAKE CARE! UNHEALTHY!
There is residual oil of the exhaust from the vacuum pump. Breathe this
gas for long time is not good for health. This product should be placed in
a ventilating room.

5
Please choose the special vacuum pump oil in the food industry field if this machine
is used for food industry.
C. Carrying & storage
1. With Carton Packing
If the machine is packed by carton with expanded gasket,
Remove the expanded gasket from the carton.
If the machine is packed by carton with foam material,
Remove the foam material from the carton.
TAKE CARE! DAMAGE TO THE MACHINE!
Lean the vacuum pump full of oil will lead much oil into the pump chamber.
The vacuum pump may be damaged if there is too much oil when the
vacuum pump starts up. Don’t move the vacuum pump after it is filled with oil.
Note: Please drain the vacuum pump oil before moving the machine.
2.Storage for Short Time
Power off, unplug the power and put the power cord away.
Close the vacuum lid and fix it with hook.
Cover the machine with plastic bags in case of dusts if possible.
Store the machine in a dry, dustless and shockproof room.
3. Storage for Long Time
The internal of the machine has its anticorrosion treatment before it leaves the factory, so
there is no need to treat it with preventive oil in addition. You can use the preventive oil if it is
stored in bad condition, such as corrosive atmospheric environment, overheat or frequently
changed temperature. If any question, please contact the manufacturer or distributor.
Power off, unplug the power and put the power cord away.
Close the vacuum lid and fix it with hook.
Cover the machine with plastic bags in case of dusts if possible.
Keep the original package if possible.
If carrying, please drain the vacuum pump oil before moving the machine.
Store the machine in a dry, dustless and shockproof room.
4. Restart after Storage
Operate according to the instruction in the INSTALLATION and START chapter.

6
D. Installation
Please read this instruction carefully and understand it thoroughly before installation, to
understand how to install, start up, maintain & operate. The manufacturer is irresponsible for
any problems caused by not complying with this instruction.
Any problems, please contact the manufacturer or distributor.
1. The Prerequisite of Installation
Take care! Damage!
If the installation prerequisite can’t be reached, the machine will be
damaged.
Take care! Injured!
Please do abide by the installation prerequisite.
Make sure the installation environment meet the basic security regulation.
2. Environment for Installation
No inflammable and explosive gases around.
Temperature: 5-30℃. If the machine will be operated in other environment, please
contact the manufacturer or distributor
Environment pressure: standard atmospheric pressure.
Make sure the Power meets the requirement. (see the name plate in the machine)
Make sure the machine stands upright when moving or carrying. Leaning the machine
may lead to the damage of vacuum pump.
Make sure the machine is laid in a horizontal position, which is one of the essential of
trouble-free operation of the machine.
To ensure radiating heat well, there should be enough space around the machine for
airing, at least distance of 10cm.
Do not expose the machine nearby heat source or steam device, e.g. steamer,
dishwasher or stove.
Make sure that there’re enough space left for replacing easy-wear parts and vacuum
pump oil..
3. Filling Oil
TAKE CARE! DAMAGE!
There is no vacuum pump oil in the newly delivered machine. The vacuum
pump works without oil will damage the pump, even in a short time.
Please make sure the vacuum pump has been filled with the oil before
startup.

7
Note: The vacuum pump should be transported without oil.
PAY ATTENTION! DAMAGE!
Filling the oil to the vacuum pump through other position of the pump may
damage the vacuum pump. The oil should be filled through the oil filler
hole.
TAKE CARE! SCALD!
The oil tank is full with high-temperature and high-pressure oil mist. The
user may get scald by the hot oil mist if the oil filler hole is open. Only
when the vacuum pump stop running can the oil filler plug be unscrewed.
Please screw up the oil filler plug when the vacuum pump is working.
Unscrew the four screws on the back cover.
Unload the back cover.
Unscrew the oil filler plug with wrench in right size.
Fill the machine with appropriate special oil for vacuum pump. Please refer to the
Chapter “Special Oil for Vacuum Pump”.
Make sure the oil level is between 1/2 and 3/4 of the oil level indicator.
Make sure the sealing rubber ring is not worn and installed in the oil filler plug. Replace
the ring when needed.
Screw the oil filler plug.
Wait for several minutes.
Check whether the oil level is between 1/2 and 3/4 of the oil level indicator. If it is less
than 1/2, please add more.
If the oil level is between 1/2 and 3/4 of the oil level indicator, fix the back cover.
Oil filler hole
Oil filler plug
Back cover
Oil level indicator

8
Note: Please choose the special vacuum pump oil in the food industry field if this machine
is used for food industry.
4. Connecting Electricity
DANGEROUS! ELECTRIC SHOCK!
Please make sure all the sockets have protective ground wire.
TAKE CARE! Unmatched power will damage the machine.
Please check the power parameter of the power referring to the name
plate on the machine.
Please abide by the regulation of safe operation and the national
protective measure of accident.
Power/Grounded connection
Check whether the power voltage is in accordance with the one written in the name
plate of the machine.
Please check the rotation direction of the vacuum pump when the machine is connected
to three phases power.
Make sure the machine is connected correctly to the grounded plug to avoid fire or
electric shock. The grounded wire is yellow-green color.
The cable should be movable to avoid extrusion.
Please replace the cable if it is damaged.
Please cut off the power first when the machine is in problem or under maintenance.
Please put the cable away if the machine will be left unused.
If the machine employs single-phase plug:
Connect the power cord to the machine correctly.
Connect the other side of the power cord to the built–in-wall socket.
If the machine employs three-phase power:
Connect the power cord to the power correctly.
Connect protective ground wire.
Connect to
built–in-wall socket

9
TAKE CARE! DAMAGE!
The incorrect rotation direction of the vacuum pump motor will damage the vacuum pump
in even a short time. Please make sure the rotation direction is correct before startup.
For the vacuum pump equipped with three-phase motor:
Check the rotation direction of the vacuum pump according to the instructive mark.
Turn on the power and lower the vacuum lid slightly to make the vacuum pump be
running (Refer to the Start Chapter).
Observe the fan of the vacuum pump motor if possible and determine the rotation
direction before the fan stops.
If it is impossible to observe the rotation direction, please carefully listen to the sound of
the motor. The vacuum pump running in reverse direction will beep. Also note to look at
the vacuum gauge to check, as the vacuum pump in reverse direction can’t produce
vacuum.
If it is necessary to change the rotation direction:
Exchange any two phases of the three-phases power.
E. Start & Commissioning
TAKE CARE! INJURED!
Please operate according to this manual.
TAKE CARE! UNHEALTHY!
There is resin oil exist in the exhaust from the vacuum pump. Breathe
the gas for long time is unhealthy. The machine should be used in a
ventilating room.
TAKE CARE! SCALD!
The heating plate can reach to the high temperature of more than 200℃
when it is heating. Even after cooling, it is still in a high temperature.

10
Don’t pack the goods that may be damaged when vacuuming or after vacuuming with
this machine.
If you have any question about the operation and the function that haven’t stated in this
manual, please contact the manufacturer or distributor
If the machine is running irregularly or makes strange noise, please turn off the power
immediately to stop the running and finally cut off the power.
Once there is any problem, please contact the manufacturer or distributor
Vacuum chamber lid
Don’t place the machine nearby heat source to avoid the damage of vacuum lid.
Don’t put the stuff of heat, sharp or heavy on the top of vacuum lid, or may lead to the
damage of vacuum lid.
Please use solvent-free detergent to clean the vacuum lid. Solvent can damage the
vacuum lid.
Please check whether the vacuum lid cracks at least once a week. If find the
vacuum lid has crack, the machine should not be used until the old vacuum lid
is replaced by a new one., or there may occur inner-explosion of vacuum lid. The
manufacturer is irresponsible for accident or damage caused by using vacuum lid
with cracks.
As measure of prevention, the vacuum lid should be replaced every three years
referring to the standard maintenance cycle.
Vacuum pump
Make sure the vacuum pump is filled with appropriate special oil before using.
Please check the oil level & quality at least once a week. If oil level is too little or oil
emulsify or deteriorate, the vacuum pump oil should be replaced.
Only the special oil for vacuum pump can be used for the machine. Refer to the
“Maintenance” chapter.
1. Power on
Start the machine by turning the Power Switch, which is placed in the left side of the
machine.
Turn the Power switch to the Position 1, the machine monitor shows “□ □”, which
Power

11
indicates the machine is in the standby state and it can be used.
2. Standard Operation
Turn on the power switch to startup and the monitor shows “□□”.
Please adopt the composite bag suitable for vacuum packing and the bags should be
sterilized before packing foods.
Put the products in the bags. Choose the proper bags for the products. Don’t choose the
oversize bags. Ensure a clean environment during the operation. It is better that the
packing materials, products and the hands are dry.
Place the bag in the vacuum chamber or on the PP plate (if any). The bag mouth should
be placed on the heating plate or the silicon strip. If the bag is much lower than the
heating plate or the silicon strip, please insert the PP plate provided with the machine (if
any), which can make the operation simpler and the cycle time shorter.
Several bags can be placed simultaneously on the heating plate or the silicon strip, with
the precondition that the total length of these bag mouth do not exceed the length of
heating plate or the silicon strip. These bag should not be overlapped. If there’re several
heating plates or the silicon strips, they can be used simultaneously.
Set correct parameters for the vacuum and sealing function. Please refer to Control
Panel chapter.
Close the vacuum lid and the machine can automatically complete the whole set
program, including vacuuming, sealing and cooling. The vacuum lid will open
automatically when the last deflating finishes.
Remove the bags from the machine after the cycle is finished.
Press Emergency Stop Switch to stop the working if necessary, then the machine will
stop running, deflate immediately and the vacuum lid will open automatically.
Circulate as above.
Note: The vacuum lid can’t open automatically when there is power cut or other
accidents. The machine will execute the deflation function as soon as the
electricity is reconnected and then the vacuum lid will open automatically.
Note: If the machine operates in high altitude, the atmospheric pressure will decrease
and the value in the vacuum pressure gauge will reduce accordingly.
3. Optimal Packing
Employ good quality vacuum bag in correct style.
Leave enough space on the bag mouth, at least 30mm.
Place the vacuum bag neatly on the heating plate or the silicon strip.
If the bags are much lower than the heating plate or the silicon strip, please insert proper
PP plates (if any).

12
F. Standard Operation & Parameter Setting
1. Control Panel
No.
Figure
Name
Remarks
A
Monitor
Shows the state of the functions during the working; the
numbers will diminish.
Shows numbers of the parameter value of the selected
function.
Shows “□ □”for standby state
Shows “E d” when the program is finished.
B
Emergency
Stop
It is used to end the program. The emergency stop
switch can be pressed in any time to stop running.
When this button is pressed, the machine will stop all
the working and skip to the deflating function, then the
vacuum lid will open automatically.
C
Function
Selecting
It is used to choose a function, such as vacuuming,
sealing and cooling, or to change the relative
parameters. When one function is selected, the
indicator on the left side will light.
D
Up
adjustment
The parameter of the selected function will increase by
one unit every time this button is pressed. Press this
button and not loose, the value will increase by about 5
units.
E
Down
adjustment
The parameter of the selected function will decrease by
one unit every time this button is pressed. Press this
button and not loose, the value will decrease by about 5
units.
F
Program
selecting
Choose one program from the 5 programs in-stored.
Press one time then it shows the current program code
such as “P1”. Press again in one second to shift the
program from P1 to P5 by circle. When release the
button, it will adjust to be the chosen program
accordingly
A
H
G
I
B
F
E
D
C

13
G
Working
indicator
The indicator lights (in red) during the working period.
H
Function
indicator
The corresponding indicator will light when one function
is executed during the working period.
When pressing the Function Selecting button to choose
one function, the corresponding indicator will light (in
red).
I
Vacuum
gauge
Shows the pressure value in the vacuum chamber.
2. Parameter Setting
TAKE CARE! DAMAGE!
Unreasonable parameter setting may damage the machine or shorten
the service time.
Unreasonable parameter setting may damage the machine or shorten the service time.
Unreasonable parameter setting may cause that the whole program or the sealing is not
completed correctly.
If you have any question about the operation and the function of the machine, please
contact the manufacturer or distributor.
Note: The parameter can be set and program can be shifted only when the machine is
in standby state and the monitor shows ”□ □”
Selecting of programs in-stored:
Machine can store 5 working programs with individual code(P1,P2,P3,P4,P5). User can
save the frequently used program and then choose it rapidly for different packing.
You can choose different program by program button
１
Press one time then it shows the current program code such as
“P1”. Press again in one second to shift the program from P1 to
P5 in circle. When release the button, it will adjust to be the chosen
program accordingly
Parameter setting of the program:
No.
Figure
Operation
Monitor
1
Startup
Start the machine and wait for the situation of
standby
Shows “□ □”
2
Choose the function by pressing Function
Selecting button. Press once to choose next
function.

14
3
When one function is selected, the
corresponding indicator lights (in red). Four
functions are respectively vacuuming time,
gas-filling time (If any), sealing time, and cooling
time.
Shows the set
value of the
selected
function.
4
Press once to increase or decrease one unit of
the selected function time. Press the button and
not loose, the value will increase or decrease by
2 units every second.
Press the button long time can make the value
increase rapidly
Shows the set
value of the
selected
function.
5
Press once or several times the function select
button until all the indicator light out and the
machine will save all the parameters.
Shows “E d”.
Note: If close the vacuum lid when you adjust the parameter, the machine will save the
current parameter and start up.
Note: Every setting for the parameter only changes the parameter of current program.
The current program code can be showed by program button.
Note: The sealing time should be adjusted gradually to search the optical parameter.
Too long sealing time makes the temperature of heating plate beyond the
limitation, causing heating plate to be broken. Normally the sealing time should
not exceed 3 seconds.
The adjustment range of these functions:
Function
Parameter range
Adjusted by
Unit
Vacuuming
0～99
1
Second
Gas-filling
0～9.9
0.1
Second
Sealing
0～9.9
0.1
Second
Cooling
0～9.9
0.1
Second
3. Optimal Parameter:
The vacuuming time should be determined by the quantity/size of the materials, the
volume of the vacuum chamber and the requirement of vacuum degree. Usually the
vacuuming time can be set as 40~60 seconds. The sealing function may not be
completed regularly if sealing starts when the vacuum level has not down to less than
0.06Mpa.
Prolong properly the vacuuming time for special products, such as liquid or the product
consists of much water.
The gas-filling time (if any) should be set according to the practical condition.
If the chamber is overfilled with gas the vacuum lid will open automatically and the
program will stop.
If the sealing starts when the vacuum level reach to 0.06Mpa for overfilled gas, the
sealing may not be completed regularly.
The sealing time can be set between 1~3 seconds.
Note: Too long sealing time will shorten the service time of heating plate and silicon strip
as the heating plate will heat dramatically.

15
The sealing function parameter influences the sealing quality greatly; the temperature
should be adjusted slowly from low to high.
The cooling time can be set between 1~3 seconds according to the thickness of the
bags.
4. Packing Liquid Products
The machine is suitable to pack liquid products, such as soup and sauce. It is suggested
to match with a inclined PP plate to prevent the products from spilling out when pack
these kinds of products.
The temperature of the liquid will goes up to the boiling point when in a certain low
pressure or high temperature. The liquid product with high temperature will soon goes
up to the boiling point and the vacuum degree will be lower.
It is suggested the liquid products be cooled down before packing to ensure the optimal
vacuum packing effect.
The following data show the relation among the boiling point, temperature & pressure of
water.
Vacuum Pressure [MBAR]
1000
800
600
400
200
100
50
20
10
5
2
Boiling Point [℃]
100
94
86
76
60
45
33
18
7
-2
-13
5. Instruction of Controlling Program’s Cycle
No.
Process
Remarks
1
Close the
vacuum lid
Close the vacuum lid then the machine starts to work.
The indicator lights.
2
Vacuuming
The machine begins to vacuum to extract the air in the vacuum
chamber.
The indicator in front of “vacuuming” lights.
The monitor: the value decreases second by second from the set
time (maximum 99 seconds).
The pointer of the vacuum gauge sways slowly to left side.
3
Gas-filling
(if any)
The gas-filling begins and gas are filled to the bags as soon as the
vacuuming finishes.
The indicator in front of “Gas-filling” lights.
The monitor: the value decreases by 0.1 second each time from
the set time (maximum 9.9 seconds).
The pointer of the vacuum gauge sways slowly to right side.
4
Sealing
The sealing begins as soon as the vacuuming and gas-filling finish.
The indicator in front of “sealing” lights.
The monitor: the value decreases by 0.1 second each time from
the set time (maximum 9.9 seconds).
The pointer of the vacuum gauge keeps stay.
5
Cooling
The cooling begins and the sealed bag is cooled as soon as the
sealing is completed.
The indicator in front of “Cooling” lights.
The monitor: the value decreases by 0.1 second each time from
the set time (maximum 9.9 seconds).

16
The pointer of the vacuum gauge keeps stay.
6
Deflating
The deflating begins as soon as the cooling is completed. The air
comes into the chamber and the pressure inside the chamber is
equal to the outside. The vacuum lid will open automatically.
Monitor: shows “□ □”
The pointer of the vacuum gauge sways to right side dramatically.
7
Completion
The pointer of the vacuum gauge returns to the 0 position and the
vacuum lid opens automatically.
Monitor: shows “E d”, indicating the cycle is completed.
The products are packed well.
Note: The pointer of the vacuum gauge may sway slightly when the sealing just
begins, which is not the mechanical failure.
G. Maintenance
WARNING! ELECTRIC SHOCK!
Cut off the power before maintenance.
The daily maintenance is necessary to prolong the service time, avoid mechanical failure
and get the optimal packing effect. If the machine is frequently used (more than 8 hours a
day), it is suggested to do professional maintenance once every 6 months. If the machine is
used for less than 8 hours a day, the maintenance can be acted once every year. (The time
can be adjusted as per the environment and the product.)
However, the partial maintenance should be often acted by the user. The following is the
general introduction.
Cut off the power supply before maintenance. Pull the plug from the built-in-wall socket.
If the machine runs irregularly or makes strange noise, please cut off the power
immediately and contact the manufacturer or distributor.
Please clean the vacuum lid with solvent-free detergent. Check at least once every
week the vacuum lid whether it fractures. If there is any breakage, please stop using the
machine
Don’t wash the machine by high pressure cleaning, which will damage the electronic
device and other spare parts.
Don’t let the water enter to the extracting opening or the exhaust hole of the vacuum
pump, or the vacuum pump may be damaged and can’t be restored.
Non-professionals please don’t do the major maintenance.
Move or transport the machine in an upright horizontal state. Leaning the machine may
damage the vacuum pump.

17
The machine works at most 8 hours in a day. The manufacturer is irresponsible if the
user prolongs the working hour of the machine without consulting and damage the
machine.
If the machine is damaged or in problem as the user does not follow the instruction in
the manual to maintain the machine, the manufacturer is irresponsible for the problems.
1. Standard Maintenance Schedule
Cycle
Maintenance
Daily
Clean the vacuum chamber, vacuum lid and housing with wet cloth and
remove the foreign materials attached on the heating plate.
The detergent should be solvent-free.
Don’t use high pressure cleaner.
Weekly
Check the oil level and the quality. If there is not enough oil or the oil goes off,
please add oil or replace the oil.
Check whether the heating plate is damaged. Please replace the Teflon cloth
/the flat heating wire when the sealing goes bad or the Teflon cloth/flat
heating wire is not attached to the heating plate.
Check the sealing rubber of the vacuum chamber. Replace it in time if the
ring is damaged or stretched.
Check whether the vacuum lid cracks. Please stop using the machine if the
lid is broken.
Six
months
Check whether the vacuum filter is saturated. If it is, please replace the filter.
Replace at least once the vacuum pump oil every six months.
Three
years
Replace the vacuum chamber lid.
Replace the sealing airbag or the cylinder.
2. Vacuum Pump Maintenance
The daily maintenance of the vacuum pump is essential to prolong the service time and
ensure correct operation.
It is suggested to check all-round the vacuum pump at least once every year if the
machine is used frequently. Any question or suggestion, please contact the
manufacturer or distributor.
Filling / replacing oil
TAKE CARE! POLLUTION!
Please deal with the waste oil according to the environmental regulations.
TAKE CARE! SCALD!
The surface temperature of the vacuum pump will rise to more than 70 ℃
when it is running.
Don’t touch the vacuum pump during its working. If it is necessary to touch,
please stop the running, cool it down or wear thermal protective glove.

18
There is no vacuum pump oil of the newly delivered machine. Please fill the oil for
its first use.
Check the color of the vacuum pump oil
The vacuum pump oil is bright and clear without any foam or muddle. If there are white
materials after precipitation, it indicates there are foreign materials in the oil. Please do
replace the blackened vacuum pump oil or the oil with foreign materials.
The service time of the vacuum pump oil
The service time of the vacuum pump oil depends on its working environment. To
extract clean and dry gas, the vacuum pump oil should be replaced every 500 working
hours normally or at least once every six months.
Check the oil level at least once every week. Observe the oil level through oil
indicator and add oil if the oil level is too low.
It is suggested to replace the vacuum pump oil-mist filter at the same time when
replacing vacuum pump oil.
Keep the pump running for several minutes before replacing, to get a proper
temperature of the oil and the pump, so that the wet air and the impurities can be
better absorbed and filtered. High temperature will volatilize the wet air in the pump to
reduce the rust.
A: Oil filler hole
B: Oil-drain hole
C: Oil level indicator
Replacing oil
Open the back cover.
Place a basin for oil under the oil-drain hole.
Unscrew the oil-drain plug with wrench in correct size.
Drain the oil.
Put the oil-drain plug back after oil-draining.
Dispose the waste oil as the environmental protection law regulates.
Note: When you unscrew the oil-drain plug, the oil flow through the oil-drain hole, so
there should be a basin for oil. At the end of the oil-draining, please lean the
machine slightly so that the residual oil can flow away.
C
A
B

19
Filling oil:
TAKE CARE! DAMAGE!
Correct oil type and quantity is essential to the vacuum pump. Incorrect
vacuum pump oil or overfilled oil will damage the vacuum pump.
The newly delivered machine should be filled with oil.
Fill the oil after the oil-draining or when the oil level is low.
Unscrew the oil filler plug with wrench in correct size.
Fill the machine with appropriate special oil for vacuum pump. Please refer to the
Special Oil for Vacuum Pump section.
Make sure the oil level is between 1/2 and 3/4 of the oil level indicator.
Make sure the sealing rubber ring is installed in the oil filler plug. Replace the ring when
needed.
Screw the oil filler plug.
Wait for several minutes.
Check whether the oil level is between 1/2 and 3/4 of the oil level indicator. If it is lower
than 1/2, please add more.
If the oil level is between 1/2 and 3/4 of the oil level indicator, fix the back cover.
Check weekly the oil level. If it is lower than 1/2, please add more.
3. Special Oil for Vacuum Pump
The temperature of the working environment is important for the choice of the oil type. The
following table lists the relationship among the working temperature, oil quantity and oil type.
There are two suggested brand for the oil: Shell Vitrea, Great Wall special oil for vacuum
pump.
Note:
If the oil applicable for low temperature is used in high temperature, the abrasion
between the vacuum pump blade and the pump body will be aggravated and affect the
service time of the vacuum pump.
If the machine is not used in normal environmental temperature, please contact the
manufacturer or distributor
Vacuum pump oil
VM32
VM68
VM100
Viscosity level
ISO-VG
32
68
100
Applicable
temperature (℃)
<5
5~20
12~30
Dosage (L）
0.3