Van Der Stahl V-300 User manual

Printed MAR 2011
1st Edition 1.01E
VACUUM SEALER
V-300 SERIES
OPERATING INSTRUCTIONS
www.vanderstahl.com

V-300 Series Operating Instructions Ver1.01E

This manual is designed to cover machines of various voltages
and plug configurations
About the warning labels
Foreword
The warning labels indicate when there is a danger of injury to the operator or damage to the ma-
chine.
Below is a list of what each label denotes.
Caution Minor injuries or damages to the unit may occur when the instruction is ignored.
Warning Critical injuries or fatal accidents will almost certainly occur when the instruction
is ignored.
Danger Critical injuries or fatal accidents will almost certainly occur when the instruction
is ignored.
Attention! Important Notes and Restrictions - Read the directions in order to avoid misuse
of the unit.
TIPS Great Tips and References when using the unit - Highly recommend reading
through the information.
Before using, always verify the voltage specification of your particular unit and operate it at the
correct voltage.
Please note the following:
1) The voltage specification of your unit is listed on the label which displays the serial
number. This label can be found on the machine body.
2) The explanations and illustrations in this operators' manual utilize the following standard
plug configurations most common in Japan. However, due to the various configurations in
use worldwide, these may not necessarily correspond with the one attached to your
specific unit.
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Warning Voltages and plug configurations differ according to various worldwide specifications.
Always verify those of your particular unit before beginning operation. Connecting the
power cord to an outlet of a different specification is extremely hazardous.
Thank you for purchasing the V-300 series sealer.
Please read all of the safety and operating instructions before operating this machine. Periodic maintenance
and proper operation are necessary to ensure safety when using this impulse sealer.
Keep this manual on hand when operating the sealer.
Set the heating time according to the material and thickness of the film.
As a result of research to further improve the V-300 series, some details in the operating instructions may
differ from your actual machine. For operating problems or product information, please contact your local
dealer .
V-300 Series Operating Instructions Ver1.01E
3

Table of contents
About V-300 …………………………………………………………………………………………… 5
1 Specifications ………………………………………………………………………………………… 5
2 Package contents …………………………………………………………………………………… 6
3 Replacement parts …………………………………………………………………………………… 6
4 Proper use of the sealer …………………………………………………………………………… 7
5 Warning-caution label location and content …………………………………………………… 7
6 Operating precautions ……………………………………………………………………………… 8
For safety operation…………………………………………………………………………………………………………………………… 8
For smooth operation ……………………………………………………………………………………………………………………… 10
Other safeguards …………………………………………………………………………………………………………………………… 11
7 Major parts and function ………………………………………………………………………… 12
8 Proper use of the sealer ………………………………………………………………………… 13
8-1 Setting the machine ………………………………………………………………………………………………………………… 13
8-2 Mounting the table ………………………………………………………………………………………………………………… 13
8-3 Plugging in the electrical power cord. …………………………………………………………………………………………… 13
8-4 Power switch ON …………………………………………………………………………………………………………………… 13
8-5 Set the sealing condition …………………………………………………………………………………………………………… 14
8-6 Forward the nozzle ………………………………………………………………………………………………………………… 14
8-7 Place a bag to the sealing area …………………………………………………………………………………………………… 14
8-8 Start vacuuming …………………………………………………………………………………………………………………… 15
8-9 Press the table further down ……………………………………………………………………………………………………… 15
8-10 Allow sufficient cooling time ……………………………………………………………………………………………………… 15
8-11 Finishing sealing …………………………………………………………………………………………………………………… 15
8-12 Power switch OFF ………………………………………………………………………………………………………………… 16
8-13 Inspection after operation ………………………………………………………………………………………………………… 16
9 When air flushing is desired …………………………………………………………………… 17
10 How to remove the piping ……………………………………………………………………… 17
11 Replacing the routine maintenance parts …………………………………………………… 18
11-1 Sliding the Teflon sheet …………………………………………………………………………………………………………… 19
11-2 Replacing the heating element …………………………………………………………………………………………………… 19
11-3 Replacing the glass tape and Sarcon sheet……………………………………………………………………………………… 21
11-4 Replacing the silicone rubber (white) …………………………………………………………………………………………… 21
11-5 Clean the filter and replacing the filter element ………………………………………………………………………………… 22
11-6 Replacing the nozzle ……………………………………………………………………………………………………………… 23
12 Adjusting the seal pressure……………………………………………………………………… 24
13 Electric diagram …………………………………………………………………………………… 25
14 Common problems and solutions ……………………………………………………………… 26
Exploaded vies and parts list ……………………………………………………………………………………………………………… 29
V-300 Series Operating Instructions Ver1.01E
4

Code G type G type
Model V-300 V-300-10D
Power 110V or 220V 50/60Hz AC ※Check the voltage of your paticular unit.
Power Consumption 1050W (10mm) / 560W (5mm) 1050W
Weight 12Kg 12.7Kg
Sealing Dimension Effective seal length 300mm / 12”
Width 10/5mm (exchangeable) Width 10mm
Vacuum Pump Capacity
Exhaust Velocity/ Ultimate Vacuum
10L/minExhaust Velocity
-58.6Kpa / 320torrUltimate Vacuum
Maximum Heating Temperature 230
Vacuum Pump Timer 120 Seconds
Machine Dimention W 395m m x D 430mm x H 270 
The model V-300 and V-300-10D vacuum sealer is provided with a vacuum pump for reducing the air in
the pouch prior to sealing. Compared with conventional sealers, the additional function or removing air
from the package can increase the life of food and prevent oxifation of metal parts, as well as protecting
parts against scratching each other in the pouch.
In cases where high protection is required, it is recommended that a deoxidizer or dessicant should be
used in conjunction with the vacuum seal. Preservation of foods sometimes requires refrigeration, gas
flushing, etc. Please check food regulations for the proper method.
Remenber, laminated material should be used when vacuum sealing is necessary. Before carrying out
your packaing work, please perform a number of tests to decide the best sealing condition for your
application.
※Vacuum pump capacity is measured before it is assembled.
※Ultimate pressure 0 torr equal 0 Pa.
About V-300
1 Specifications
V-300 Series Operating Instructions Ver1.01E
5

XL-28 XL-20 XL-14
Routine Maintenance Parts Sales Unit Maintenance Parts Kit
Heating Element (5mm10mm width) 20 pcs. 3 pcs. (W5mm or10mm)
Teflon Sheet 2 pcs. 2 pcs.(315x250)
Glass Tape W19mm×5M roll 1roll 1 roll
Silicone Rubber (White) 2 pcs. 1 pc. (12x310)
Filter Element 3 pcs. 2 pcs.
Sarcon Sheet 2 pcs. 1 pc. (13x320)
 V-300 V-300-10D
Heating Element 5mm width 5 pcs. -
10mm width 5 pcs. 5mm width 10 pcs.
Teflon Sheet 1 pc. (250x315mm) 2 pc. (250x315mm)
Glass Tape 1 roll (19mmx5M roll) 1roll (19mmx5Mroll )
Philips Screwdriver 1pc.
Filter Element 1pc
Standardized Bags L/3 pcs(XL-28) M/3 pcs(XL-20) S/3 pcs(XL-14)
Table 1pc
Routine maintenance parts, which will need to be replaced after extensive use, are sold individually as
detailed below. Also the maintenance parts kits that includes all the consumable parts are available.
Replacement parts can be purchased through Van der Stahl Scientific.
Please make sure that all of the accessories described below are included.
If not, please contact your dealer. These accessoris are located in the parts cover under the machine base.
2 Package contents
3 Replacement parts
Replacement parts sales unit
These illustrations are not reduced equally.
Heating element
Philips screwdriver
Table
Parts Cover
Accessories are in the
parts cover under the
machine base.
Glass tape
Filter Element
Teflon
V-300 Series Operating Instructions Ver1.01E
6

1The impulse sealer is a machine which sends strong electric current quickly to the thin ribbon heater,
which presses against the film and instantly heat seals the package. Though this machine yields
superior quality sealing, it is not compatible with films thicker than that indicated in the diagram
below, sponge-like sheets, and materials which are not able to withstand high heat.
2Vacuum packaging requires a laminated pouch made with high-barrier property materials such as
nylon-based films. Using films with low gas barrier properties will allow air to seep into the pouch
over time, negating the effectiveness of a vacuum seal.
3Film thickness limits for the V-300 series are described below. The machine cannot seal bags which
are thicker than that indicated. The machine may malfunction if you try to exceed the limits of the
machine.
4 Proper use of the sealer
5 Warning-caution label location and content
Warning - Caution labels are placed in locations where there is a danger of injury to a person or damage to the
machine. Label location details are illustrated below. Please check them before beginning operation.
Labels not readily apparent are indicated by dotted lines.
CAUTION
UNPLUG BEFORE
PERFORMING
MAINTENANCE.
Adhered on the left side of the
body frame.
When removing the control unit, you
will see this label adhered on the
backside of it. Do not remove the
control unit unless it is necessary.
CAUTION
HOT
Adhered on the pressure lever.
WARNING
electric shock
V-300 Series Operating Instructions Ver1.01E
7
Heating method Model Heater width Film thickness (total thickness of piled film)
Single side heating V-300 5mm Less than 0.3mm
Single side heating V-300 10mm Less than 0.4mm
Double side heating V-300-10D 5, 10mm Less than 0.5mm
If Warning - Caution labels peel off or are lost, please purchase the proper la-
bels and place them in the appropriate location.

6 Operating precautions
For safety operation
Warning In an emergency, unplug the power cord immediately
This sealer incorporates a number of safety devices and is carefully
designed to prevent fires or other malfunctions. However, should all of
the safety devices fail simultaneously, there is a possibility of the teflon
catching fire due to a failure of the heating circuit's tripping mechanism
that results in the heating element overheating. Should smoke or fire
appear from the teflon, immediately release the foot pedal or turn OFF
the power.
Warning Confirm proper electric power source
Make sure power source has the specified voltage and electric power as
explained in “1 Specification” of this manual. DO NOT use an extension
cord, as the machine may malfunction due to voltage drop or may result
in fire. Machine will malfunction if connected to anything other than the
specified voltage.
Insert the electric power plug fully into the wall outlet.
Warning Do not use for packaging liquids
Do not splash water on the machine or use machine for packaging liquids
since machine is not waterproof. There is a danger of electrocution or
malfunction of the machine.
Warning Do not insert any metal objects into the sealing area
Please do not place any metal objects into the sealing area during
operation. This could cause electrocution.
Warning When replacing parts, unplug the power plug
Maintenance of the machine is important. Parts should be replaced in
accordance with the operating instructions. There is a risk of danger if
the parts are not replaced properly. Before replacing parts, unplug the
machine from the power source and replace parts referring to “Replacing
the routine maintenance parts” thoroughly.
Warning Do not use parts other than those specified
When replacing parts, always use only specified parts sold through
Van der Stahl Scientific. We are not responsible for malfunctions
caused by the use of unspecified parts.
V-300 Series Operating Instructions Ver1.01E
8

Warning Do not modify the machine
Modification of the FA series or the use of unspecified parts may not only
lead to damage of the machine, but there is also a risk of danger to the
operator. Please do not tamper with the machine. Accidents or damage
caused by modification by the customer is the sole responsibility of the
customer.
Caution Do not use in the following places
Do not operate machine in the following places since there is a danger of
malfunction:
1Dusty locations.
2Locations not within normal temperatures.
3Locations with high humidity.
Warning If the power switch automatically turns to the OFF position
If after 3 seconds heating is not complete after it has been initiated, the
power switch will automatically turn to the OFF position. There is a
possibility of malfunction of the machine. Do not operate the machine
until the cause of the shut down is ascertained and the problem has been
addressed.
Caution Do not place hands in the sealing area
1With prolonged use, the sealing area will retain heat and become
hot. If you place your fingers in this area, there is a possibility of
burns.
2Do not place hands between the seal jaws (pressure lever and
seal fram).
Caution Use the machine properly
Read “Proper use of the sealer” in this manual carefully and operate
sealer correctly. Accidents or damage caused by misuse of the machine
not in accordance with the operating instructions are the sole
responsibility of the customer.
Caution Run test trials first before beginning operation
Achieving a superior seal with an impulse sealer is determined by
heating / cooling / pressure strength. Depending on the type of film being
used and the contents of the bag, heating / cooling / pressure strength
conditions may drastically differ. Find the optimum sealing conditions
by conducting seal tests before proceeding.
V-300 Series Operating Instructions Ver1.01E
9

For smooth operation
●To achieve a strong seal
Proper sealing pressure is important in achieving a strong seal. Sealing
pressure for FA series can be adjusted by the power to depress the pedal.
Apply the optimum pressure when sealing.
●When operating machine for extended periods of time
The machine's temperature will rise upon prolonged use of the machine.
As the temperature of the machine rises, the condition of the seal will
change. Thus, heating time should be shortened and cooling time should
be lengthened accordingly.
●Dust in the sealing area
Dust will prevent attainment of a smooth seal. It could also cause
damage to heating element and/or other routine maintenance parts.
Before using the machine, clean the sealing area.
●Heating time should be set at a minimum
Set sealer so that an acceptable seal is completed in the least amount of
heating time. Excessively long heating times (increasing the heat setting
unnecessarily) will damage the teflon, glass tape and other consumables,
as well as result in heating element breakage. This will lead to decreased
work productivity and unnecessary power consumption.
●Allow sufficient cooling time
Cooling time is important when using an impulse sealer. After the film
is heated, the film must cool with the frame and pressure lever in the
closed position. Take the cooling time 1.5 times longer than the
heating time. For the detail, please refer to “8-7 Setting the sealing
condition with the control unit”.
●When the Teflon, silicone rubber becomes damaged
The Teflon, silicone rubber will start to wear with use. Once they are
damaged, it will be difficult to achieve smooth and strong seals.
Thoroughly read how to replace the parts and be careful when doing
V-300 Series Operating Instructions Ver1.01E
10

H
L
Other safeguards
Place the sponge that is soaked with
water inside the pouch. Press the
vacuum button so the nozzle sucks
the water from the sponge. Repeat
this procedure 2-3 times to keep the
nozzle clean.
●Run test trials before beginning operation
Depending on the type of film being used, heating / cooling / pressure
strength conditions will differ. Run test trials to find the optimum
sealing condition, especially when trying to find the tightest seal
possible.
●The V-300 series is an impulse sealer
Do not become alarmed if the sealing area does not become hot after the
power switch is turned to the ON position. The machine has not
malfunctioned.
The sealer uses an impulse method so the heating element will not
become hot just by plugging the unit in or turning the power switch to
the ON position. The heater will only become hot for an instant when
the heating process is in operation. However, after extended periods of
use, the sealing area may become hot.
●When vacuum sealing liquids or powders, regular maintenance
of the nozzle is necessary
Particularly when sealing sticky liquids, the nozzle should be regularly
flushed with water and allowd to air dry. When flushing the nozzle, water
will pass through the filter and be discharged outside the unit, so please
ready a container to catch the water coming from the hose.
If the blockage in the nozzle is particularly sever, refer to the instructions
“12-5 Replacing the nozzle” on how to remove the nozzle. Remove as
illustrated and clean thoroughly.
●When the sponge pad should be replaced
If the surface of the sponge pads on the upper and lower seal jaws
become damaged, you will hear the whining sould and the air leakage
will happen. If you see the damage on the sponge pad, you can turn it
over to use the other side of it. Once both sides are used and worn out,
please replace them to the new ones.
V-300 Series Operating Instructions Ver1.01E
11

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V-300-10W (D) has the same structure as illustrated above.
Please refer to the exploded view and parts list for the detail from page 29.
V-300
7 Major parts and function
Nozzle lever
Floating pressure bar
Glass tape and Silicone
rubber holding bracket
Electrode
Parts cover
Table
Power switch
Pull the nozzle lever toward you.
The nozzle will move forward.
Push to turn ON the
sealer.
Push again to turn OFF.
The sealing can be
performed by pressing
down the table.
Heating time adjustment
knob
Remove when sliding or
replacing the Teflon.
Frame cover
Remove the electrode
cover when replacing the
heating element.
Vacuum nozzle
Used for removing air
from the bag.
Accessories are stored
here.
Power indicator lamp
Turns on when the power
is turned on.
Vacuum indicator lamp
Turns on while vacuuing.
Heating indicator lamp
Turns on while heating.
Vacuum start button
Vacuuming starts by
pressing the button.
Vacuum time adjustment knob
Adjust the vacuuming time
according to the bag size and
contents.
Adjust the heating time
according to the film thickness.
Silicone sponge rubber
Installed to hold the pouch
closed while vacuuming from
the nozzle.
Frame cover mounting screw
Remove the screws to remove
the frame cover.
Teflon holding plate screws
Loosen the screws to remove
or replace the Teflon sheet.
V-300 Series Operating Instructions Ver2.01E
12
V-300 Series Operating Instructions Ver1.01E

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Place the machine on a flat, horizontal working table.
Do not use the machine in a location on the unstable
place where the machine can fall.
1Remove the plastic nuts (white) and insert the
screws of the table into the designated holes.
2Fasten the plastic nuts (white) to fix the table
securely.
Push the power switch located on the top of the frame
cover. Power indicator lamp on the timer unit will turn
on.
Use only as described in this manual.
There is a risk of danger and malfunctions may result if the machine is used not in accordance with this
8 Proper use of the sealer
8-1 Setting the machine
8-2 Mounting the table
8-3 Plugging in the electrical
power cord.
8-4 Power switch ON
Power switch
Push
The power cord is located on the right side of the
machine, when facing toward it. Make sure the
electrical outlet has adequate current carrying capacity
as described at “1. Specification.” Insert the electric
power plug fully into the wall outlet.
Warning There is a danger of fire if the electrical
power source does not meet proper
specification.
V-300 Series Operating Instructions Ver2.01E
13
V-300 Series Operating Instructions Ver1.01E

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●Adjust the heating time
Adjust the heating time by turning the heating
time adjustment knob. The heating time varies
depending on the film/pouch material. Setting
the knob to the greater number will increase the
heating time. [Setting range: 0.1-2.3 seconds.]
Set the heating time at minimum required to
make a sufficient seal.
Set the heating and vacuuming time with the timer unit.
The sealing condition will vary depending on the
pouch/ film material, thickness and size. Reset the
sealing condition everytime you change the pouch/
film.
●Adjust the vacuuming time
Adjust the vacuuming time by turning the
vacuuming time adjustment knob. Setting the
knob to the greater number will increase the
vacuuming time. [Setting range: 1-20 seconds.]
Normally set the vacuuming scalse to 10. When
vacuuming the small pouch, lower the vacuum
scale and decide the optimum time through
several tests.
Pull the nozzle lever toward you. The nozzle will move
forward crossing the sealing area. When the vacuuming
operation is not neccessary, you can skip this operation.
TIPS When deciding the optimum vacuuming
time, set the heating time to 0. This will
allow you to conduct the seal test
repeatedly.
8-5 Set the sealing condition
8-6 Forward the nozzle
Pull
Seal position
Vacuum position
Nozzle lever
Warning There is a danger of fire if you set the
long heating time without taking the
sufficent cooling time under the auto
cycle mode.
V-300 Series Operating Instructions Ver1.01E
14

H
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1Hold the bag with both hands at the sealing
position. Slid the upper film of the bag toward
you so the bag opens and make it easy to insert
the nozzle.
2Move your hands outward, streching out the bag
to minimize wrinkles. While you do so, push the
table down into its lockign position until it
clicks.
3When the packaging content is solid item, move
the content as close as to the nozzle so the film
does not cover the nozzle time. This will make
the vacuuming much easier. When the content is
liquid or powder item, on the other hand, keep
the space between the nozzle and content.
4Arrange the content neatly in the bag.
The vacuuming starts by pushing the vacuum start
button at the set vacuuming time. When the vacuuming
is not enough, either push the vacuum button again or
set the vacuuming time longer. Unless you pull the
nozzle backward, the vacuuming process can be
repeated endlessly. Please note that the air will flow
into the bag after vacuuming.
When the vacuum timer stops, the vacuuming finishes.
Push the nozzle lever backward quickly with your right
hand and press the table further down with your left
hand immediately after the vacuuming finishes.
TIPS Operate the vacuuming manually
To stop the vacuuming at the optimum
level, simply push back the lever to the
position of “Seal”. The vacuuming stops
even in the mid-cycle when the lever is
pushed to the seal position.
8-7 Place a bag to the sealing area
8-8 Start vacuuming
8-9 Press the table further down
Vacuum start button
Pull back the nozzle
Press further
V-300 Series Operating Instructions Ver1.01E
15

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After finishing operation, always turn OFF the power
switch. Unplug the power outlet in the case of not using
the machine for a while.
After use, please clean up the parts. Inspect parts such
as Teflon and heating element to make sure that they
are not damaged. If the parts appear to be damaged,
replace them referring to operating instruction.
After the operation, please make sure there are no
foreign objects in the air filter. If you find the foreign
objects, remove the filter and clean it.
After the heating and cooling cycle has finished, the
pressure lever returns to the initial position, and the
sealing is complete. If a sealing is not clean enough,
adjust the heating/ cooling time or sealing pressure.
Cooling time is important when using an impulse
sealer. After the film is heated, the film must cool with
the frame and pressure lever in the closed position.
After the heating lamp turns off, keep the for 2-3
seconds.(The instructions are described in the “Proper
use of the sealer” section)
8-12 Power switch OFF
8-13 Inspection after operation
8-11 Finishing sealing
8-10 Allow sufficient cooling time
Power switch
Push
Filter
Nozzle
Heat indicator lamp
Release the table 2-3
seconds after the heat
indicator lamp turns off.
Caution Without taking the sufficient cooling time,
the sealing may result in failuer and
shorten the life of the routine
maintenance parts. In addition, poor seal
could contribute to the oxidation and/or
deterioration of the content.
V-300 Series Operating Instructions Ver1.01E
16



Release ring
Push this part while pullint out the hose
V seal
Hose
O ring
Collet
Joint frame
Screw section
Note to the insert depth
The V-300 not only removes the air, but can flush it as well. It is as simple as reversing the air hose lines on
the vacuum pump. The procedure for changing the hose connection is explained in below.
1Using a Philips screwdriver, loosen the screws
holding the frame cover and remove it.
2Remove the IN hose from the ar filter elbow
joint and set it so that it comes outside of the
machine body.
3Next, insert the OUT hose that comes to outside
the machine body into the elbow joint where the
IN hose was set. The air will be provided.
When removing the vacuum/flushing air lines, pull the
hose while pushing on the release ring around the
elebow joint. (This is unnecessary when plugging in the
hoses.) The check-valve-action of the collect will
prevent the hoses from slipping out. The leak-proof
seal is thanks to a V-type seal.
Caution If the hose insertion is not enogh (less
than 18mm), the air will leak and the
vacuuming capacity will decrease.
Please make sure to fully insert the hose.
9 When air flushing is desired
10 How to remove the piping
To nozzle
OUT hose
Filter
Air filter elbow jointRemove IN hose
IN hose
To nozzle
Air filter elbow jointInsert the OUT hose
V-300 Series Operating Instructions Ver1.01E
17

Daily maintenance or replacement of parts at an early stage can prevent the machine from being damaged, and keeps
the machine at the optimum condition. Replace parts according to the following directions in order to maintain your
machine in optimum operating condition.
The sealing section consists of the parts as in the illustration below. When replacing parts, be careful to arrange the
parts exactly in the same order.
11 Replacing the routine maintenance parts
Structure of the sealing section
Always unplug the machine before maintenance.
Pressure lever
Silicone rubber (white)
Teflon Sheet
Glass tape
Sarcon sheet
Heating element
Glass tape
Teflon Sheet
Heating element
V-300-10D
Pressure lever
Silicone rubber
Teflon sheet
Glass tape
Sarcon sheet
Heating element
V-300
Warning
Warning
Warning
Follow the directions on this manual when replacing parts. Replacing parts in the way ignoring this
manual could cause malfunction of the machine as well as electrocution and fire.
Always unplug the power plug before replacing parts. There is a danger of electrocution if it has
been done without unplugging.
Always use only specified parts sold through Van der Stahl Scientific. Unspecified parts may
cause malfunction of the machine.
V-300 Series Operating Instructions Ver1.01E
18

Electrodes that mount the heating element consist of
parts as in the right illustration.
Essential tools: A Philips screwdriver
Replace when: The heating element breaks,
unevenness is generated, or when the
seal becoms messy.
The heating element is either sold individually or
included in the maintenance parts kit.
Warning If you loose the screw C, do not
substitute ones longer than the screw C
(M4x6) as there is a danger of short
circuit by the longer screw touching
screw D.
Caution When replacing the heating element,
replace the glass tape and Sarcon sheet
as well if they are appear to be damaged.
If they are damaged and cannot properly
insulate the heating element from the
body frame, the short circuit may result.
TIPS The heating element can be replaced
without removing the electrode cover so
you will not loose the cover or screw.
Essential tools: Scissors, a Philips screwdriver
Replace when: The Teflon sheet burns, or when the
seal becomes messy.
Teflon sheet is either sold individually or included in
the maintenance parts kit.
1Loosen the screws that fix the Teflon sheet
holding plate and slide the edge of the Teflon.
(Left illustration describes when the Teflon
holding plate is removed.)
2Loosen two white plastic nuts so the Teflon roll
bar can be moved, and slide the Teflon sheet to
the firection of arrow.
3Cut the damaged part of the Teflon with scissors.
4Insert the edge of the Teflon between the Teflon
holding plate and holder and fix by tightening
the screws.
5Roll up the Teflon to the Teflon roll bar.
6Tighten the white plastic nuts to secure the
Teflon roll bar with Teflon roll bar fastening
plates.
11-2 Replacing the heating element
11-1 Sliding the Teflon sheet
Electrode mounding
bracket
Electrode plate
Electrode plate spring
Electrode cover
Terminal coverScrew A
Screw C
(M4x6)
Screw B
Screw D
Mounted only to the
single side heating
models.
Sponge pad
Teflon roll bar
Teflon sheet holding plate
(lower)
Slide off the Teflon sheet
Plastic nut
(white)
V-300 Series Operating Instructions Ver1.01E
19

Lower heating element (for V-300,
V-300-10D)
1Remove the Teflon sheet. (Refer to “9-1 Sliding
the Teflon sheet.”)
2Loosen the screw A of both electrodes with a
Philips screwdriver, and remove the terminal
covers. The illustration on the right describes the
electrode after the terminal cover is removed.
3Loosen screw B of both electrodes to loosen the
tension of the heating element. It is not necessary
to remove the electrode covers.
4Insert a Philips screwdriver into the hole of the
electrode cover and loosen screw C. The heating
element can be removed.
5When mounting the new heating element, insert
each terminal between the electrode plate and
electrode plate spring. While pushing down the
terminal with your fingers so it stays in place,
tighten the screw C with a Philips screwdriver.
6Tighten the screw B loosened at the procedure 3
so the heating element is stretched tight. When
the screw B is not tightened enough, the heating
element will not be stretched tight enough, which
may result in damaging the heating element.
7Fix the terminal covers to the electrodes with
screw A.
Upper heating element (for V-300-10D)
1Remove the Teflon sheet. (Refer to “9-2 Sliding
the Teflon sheet.”)
2Loosen the screw B of both electrodes with a
Philips screwdriver, and remove the terminal
covers. The illustration on the right describes the
electrode after the terminal cover is removed.
3Insert a Philips screwdriver into the hole of the
electrode cover and loosen screw C. The heating
element can be removed.
4When mounting a new heating element, insert
each terminal between the electrode plate and
electrode plate spring. While pushing down the
terminal with your fingers so it stays in place,
tighten screw C with a Philips screwdriver.
5Tighten the screw B loosened at the procedure 2
so the heating element is stretched tight. When
the screw B is not tightened enough, the heating
element will not be stretched tight enough, which
may result in damaging the heating element.
Caution Without loosening the screw B, the
heating element will be kept stretched
tight. Thus the heating element
terminal cannot be inserted between
the electrode plate and plate spring.
Caution Without loosening the screw B, the
heating element will be kept stretched
tight. Thus the heating element
terminal cannot be inserted between
the electrode plate and plate spring.
Push
Turn while pushing
Teflon sheet
Heating element terminal
Turn
Screw B
Teflon sheet
Heating element
Screw C
Screw B
Push
Screw C
Turn while pushing
Glass tape
Heating element
terminal
Turn
Heating element
V-300 Series Operating Instructions Ver1.01E
20