Frigomat TAYLOR C122 User manual

MANUALE D’USO E
MANUTENZIONE
MANUAL OF USE AND
MAINTENANCE
MANUEL D’UTILISATION
ET D’ENTRETIEN
GEBRAUCHSANWEISUNG
UND
WARTUNGSHANDBUCH
MANUAL DE USO Y
MANUTENCION
MANTECATORI ORIZZONTALI ELETTRONICI
ELECTRONIC HORIZONTAL BATCH FREEZER
TURBINES ÉLECTRONIQUES HORIZONTALES
ELEKTRONISCHE WAAGRECHTE SPEISEEISBEREITER
MANTECADORAS HORIZONTALES ELECTRÓNICAS
Azienda Certificata
ISO 9000-2000
Numero Certificato T 27543
Serie-Series-Série-Serie
C119 05
C122 02
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1 - ENGLISH
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ENGLISH - 2
The machine is covered by guarantee according to the conditions reported in the
“GUARANTEE CARD “ enclosed to the machine, which shall be duly filled up and sent
back to:
FRIGOMAT s.r.l., via 1° Maggio 26862 GUARDAMIGLIO (LODI) – ITALIA
In the following field, please write your machine serial number in capital letters
Serial number
Distributor’s stamp
IMPORTANT
We recommend to carefully and fully read the present manual before using your
TAYLOR machine.
In your own interest, pay particular attention to the following warnings:
The non-observance of this warning can jeopardize the user’s health and the
correct operation of the machine.
A
careful observance of these warnings can lead to a top performance of the
machine.
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3 - ENGLISH
Congratulations on purchasing a machine TAYLOR.
The present manual, enclosed to the machine, is integrant and essential part of the
machine and shall be delivered to the final user. Before performing any kind of operation, it
is recommended to carefully study the reported instructions, as only a careful reading
allows you getting the highest performance from your machine. The following pages report
all information necessary to correctly install, commission, adjust and service your machine.
TAYLOR reserves the right to carry out all changes necessary to improve its product or
manual without prior notice and to insert them in the subsequent issues.
INDEX
1. TRANSPORT, HANDLING AND STORAGE………………………………… 4
1.1 Preliminary Inspection ………………………………………… 4
1.2 Machine unpacking ………………………………………… 4
1.3 Packing dimensions ………………………………………… 4
2. MARKING AND GRAPHICS ……………………………………… 5
3. INSTALLATION ………………………………………… 7
3.1 Field of use ………………………………………… 7
3.2 Limits of use ………………………………………… 7
3.3 Machine outfit ………………………………………… 7
3.4 Commissioning ………………………………………… 7
4. SAFETY DEVICES ………………………………………… 10
5. OPERATIONS ………………………………………… 11
5.1 Controls ………………………………………… 11
5.2 Control panel ………………………………………… 12
5.3 Production ………………………………………… 13
6. MAINTENANCE ………………………………………... 17
6.1 Routine maintenance ………………………………………… 17
6.1.1 Cleaning and sanitization ………………………………… 17
6.1.2 Maintenance of agitator and gaskets ……………………… 19
6.1.3 Refrigerating unit ………………………………………… 19
6.2 Extraordinary maintenance ………………………………………… 20
6.2.1 “Meb-New” Electronic Card Programming………………… 20
6.2.2 Consistency Calibration On Meb-New Card ……….. 21
7. TROUBLE-SHOOTING ………………………………………… 23
7.1 Alarm management ………………………………………… 23
7.2 Trouble-shooting ………………………………………… 24
8. APPENDIXES ………………………………………… A1
8.1 Technical data ………………………………………… A1
8.2 Refrigerant circuit diagram ………………………………………… A2
8.3 Wiring diagram ………………………………………… A3
8.4 Spare parts ………………………………………… A4
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ENGLISH - 4
1 TRANSPORT, HANDLING AND STORAGE.
1.1 PRELIMINARY INSPECTION
The machine travels at the customer’s risk. In case packing is damaged, immediately
inform the carrier.
Immediately inform the carrier also in case of damage to the machine, even if you open
the packing a few days after the delivery.
It is always advisable to accept the goods SUBJECT TO INSPECTION.
The equipment shall be assembled with great care: falls and shocks can damage it without
showing external damages.
1.2 MACHINE UNPACKING
For a correct machine unpacking, carefully follow the instructions hereunder reported:
in case of packing carton on wooden frame:
•Remove the strap fixing the carton to the bottom and take the packing off from the top.
In case of wood case:
•Remove the case upper side and the side walls by means of a nail drawer, pay
attention not to disperse the nails and the wood splinters;
•Remove the plastic bag and put it in a safe place;
•Unscrew the machine side panels by means of a cross and/or cut screw-driver;
•Turn out the screws fixing the packing lower side to the machine by means of a 17mm
wrench;
•Remove the packing lower part, lift the machine and hook it up to the lifting points
specified on the frame with the symbols;
•Reposition the side panels.
The packing shall be stored in a dry place, out of the children’s reach. It can be used
again, if correctly preserved, for a possible transfer of the machine.
The storing temperature shall range between +5°C and +55 °C.
Humidity shall range between 30 and 95%.
Packing elements such as plastic bags, nails, expanded polystyrene, cartons, etc. must be
left out of the children’s reach.
1.3 PACKING DIMENSIONS
CASE PALLET BOX
MODEL SIZES (CM) WEIGHT N- L
(KG) SIZES (CM) WEIGHT N- L (KG)
C122 50X107X130 160 - 225 46X103X126 160 - 175
C119 50X107X130 200 – 265 45X103X126 200 - 220
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2. MARKINGS AND GRAPHICS
Never touch the machine with hands and tools during production or maintenance and
cleaning operations, without making sure that the machine is in STOP position, the master
switch is off and/or the multipolar plug disconnected.
TAYLOR declines any liability for accidents deriving from an improper use of the machine
due to the non-compliance with the above-mentioned recommendations.
The machine is provided with a plate and some pictograms, which together with the
present manual allow using the machine in safer conditions.
Machine data plate
The adhesive label located on the back of the
machine allows identifying the model and reports the
following indications:
Manufacturer’s name and address; Machine model
and version; Serial number; Rated electrical
characteristics; Type and weight of employed Freon;
Manufacturing year.
Indication
Points of application of lifting devices.
The following plate is placed on the four sides of the
frame lower part and shows the points where lifting
hooks shall be positioned in order to perform this
operation in safe conditions. By means of a cross
screw-driver unscrew the two side panels and then
position the lifting devices into the apposite points.
Make sure that they cannot accidentally come out
during lifting operations.
Warning!
Maintenance allowed to qualified personnel only.
The following plate placed on the machine back
panel forbids extraordinary maintenance operations
and/or repairs delegating them to authorized people
only, whose address is indicated in the provided
space.
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Warning!
Do not touch with hands.
The following plate placed on the back of air-cooled
machines shows that cleaning operations on the heat
exchanger shall be carried out only by means of a
brush or an exhauster.
Warning!
High voltage inside, danger of fulguration.
The following plate is placed on the electric box
cover and warns the operator that in no case the
cover must be removed avoiding this way the risk of
lethal fulguration. Also in this case, maintenance
operations on internal components must be
performed by authorized personnel only.
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3. INSTALLATION
3.1 FIELD OF USE
The batch freezers SERIES C are espressly designed and engineered for ice-cream batch
freezing cycles.
3.2 LIMITS OF USE
Never use the machine with variable supply voltage and/or more than +/- 10% of the value
showed in the nameplate or when the feeder is damaged;
Do not use the machine for purposes different from the ones indicated in the present
manual;
Do not use the machine in explosive environment;
Do not wash the machine with high-pressure jets of water or poisonous substances;
Do not expose the machine to excessive heat or humidity;
Do not use completely unbalanced mixtures and/or quantities not in compliance with the
specifications reported on the packing.
3.3 MACHINE OUTFIT
- Cleaning rod
- Stiff paddle
- Agitator scraping blades
- Plug for agitator centering bush
- Fuse kit
- Door closing spring
- Agitator stuffing box
- Gasket extractor
- Door gasket
- Door closing gasket
- Lubricant
- Manual of use and maintenance
- Declaration of conformity
- Certificate of guarantee
3.4 COMMISSIONING
Bring the machine to the place of employment and check that everything is all right as far
as installation concerns:
Power supply;
Water supply (only in case of water condensing);
Suitable run-off pit for water (only in case of water condensing).
•Lock the machine by means of the apposite lever located on the front wheels (C119);
•Place the machine far from walls or other obstacles (at least 10 cm sideways and 30 on
the back). In case the machine is provided with water-cooled condenser, the distance
between the wall and the back panel can be reduced to 10 cm (C119).
•Make sure that the supply voltage and power comply with the values reported on the
rating plate placed on the back panel;
•Connect the machine to the mains; upstream the machine, arrange an omnipolar
master switch with minimum contact opening equal to 3 mm and adequate power,
interlocked with fuses to allow plugging and unplugging at open circuit.
•Connect the feeder to a type-approved plug: the feeder shall be well stretched, to avoid
rolling and overlapping. It shall not be exposed to possible shocks or tampering
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ENGLISH - 8
attempts and far from liquids, water and heat sources. It shall not be damaged,
otherwise make it be replaced by qualified personnel with another section and type
5G4 H07RN-F (for version 400 V), 4G4 H07RN-F (for version 230/3 V) or 3G4 H07RN-
F (for version 230/1 V) before connecting the machine to the mains.
•Arrange the connection of the yellow-green wire to a good earth connection.
•Put the machine metallic parts to earth by means
of the apposite equipotent fastening screw
located on the back under the frame and marked
by the symbol showed on the left (C119).
•Make sure that the water supply system is
provided with sufficient pressure for a correct
operation of the condensing plant. A residual
pressure ranging between 1 bar and 3 bar is
considered suitable (C119).
•Connect the condensing water inlet hose to the
inlet showed in the picture by means of a rubber
hose Ø1/2”. Interpose a cut-off cock at the
operator’s reach (C119).
•Connect the condensing water outlet hose to the
outlet showed in the picture by means of a hose
connector Ø1/2” and bring it to the discharge
(C119).
•Both for inlet and outlet connections it is
advisable to make use of linenized hoses suitable
to withstand pressures up to 10 bar and apposite
hose clamps DIN 3017.
•The water outlet hose shall have a min.
inclination of 3 cm for each meter of length
(C119).
•In case of water condensing it is necessary to
check that the water valve correctly works (C119).
•After both inlet and outlet hoses have been
connected, open the cut-off cock and make sure
that the discharge does not leak liquid when the
machine is not working. If this is the case, apply
to a qualified customer service (C119).
•After the master switch has been turned on, press
pushbutton PRODUCTION to start up the
compressor motor; after a few seconds
condensing water shall regularly come out of the
draining pipe at a temperature of about 35°C.
Press STOP pushbutton to stop the machine. In
case of troubles, apply to the service center
(C119).
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•For three-phase versions only, check the correct
direction of rotation of the agitator motor: apply
voltage to the machine, press DELIVERY
pushbutton and check that the agitator direction of
rotation is counterclockwise through the hopper
grid. If not, exchange the wires in the feeder
(C119).
•Press STOP pushbutton to stop the machine.
Avoid making the machine running empty for a
long time.
•Model C119: when the machine is in stop
position, unlock the door by lifting the lever and turn it towards the left. In case of model
C122, turn the two locking knobs outwards, pull the door, which is now disengaged and
withdrawable.
•Remove the agitator, check and lubricate the agitator stuffing box with lubricant
(provided as standard).
•The ideal temperature shall range between 15°C and 35°C.
•The ideal humidity shall range between 30 and 60%.
TAYLOR declines any liability for damages to persons and/or things due to a wrong
installation and/or the non-compliance with the industrial accident prevention standards.
Never touch the machine with hands, both when it is on duty and during cleaning and
maintenance operations, without making sure that the machine has been stopped by
means of pushbutton STOP and the master switch has been turned off. Never clean the
machine by means of high pressure jets of water. Never close the cut-off cock while the
machine is running (C119). Pay attention not to damage the feeder. In case of necessity,
make it be replaced.
In case the machine provided with water-cooling (C119) is left at a room temperature
inferior to 0°C, it is necessary to run off all water present inside the condenser before
starting up the machine.
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ENGLISH - 10
4. SAFETY DEVICES
Shearing prevention system: realized by means of a NO micro-switch in conformity with
the European standard; it stops the machine when the door is opened and/or the grid on
the hopper is lifted and visualize EME on the display.
Beater motor safety system: it consists of overload relays with automatic reset. They
protect the beater motor against overloads by stopping the machine. As a consequence,
the TER alarm appears on the display.
Compressor motor safety system: It consists of overload relays with automatic reset.
They protect the beater motor against overloads by stopping the machine. As a
consequence, the TER alarm appears on the display.
Auxiliary circuit supply safety system (24 V): it consists of fuses 5x20. They trip in
case of short-circuit on the logic unit or on the auxiliary power supply.
In any case the machine carries out a series of tests during production:
Production safety timer (no-growth alarm)
It starts 35 minutes after the beginning of the production in case the minimum consistency
value set up by the manufacturer is not reached. The machine stops and an alarm
message (M-C) appears on the display. In this case check the presence of troubles in the
refrigerant circuit and/or check the proportion of the batch.
DELIVERY safety timer
It starts 30 minutes after the beginning of theDELIVERY function: as a consequence the
machine stops.
Protection against voltage drops
It operates when the machine is in production mode. Whenever the voltage drops more
than 20% the protection system resets the machine to protect the electric components.
The machine automatically comes back to operation and all pushbuttons light up as soon
as the voltage returns to the rated values.
Logic unit self-reset in case of lack of power supply
It stops the machine allowing the manual reset of functions.
Logic unit self-diagnosis (watch-dog)
A microprocessor checks for possible internal troubles and stops the electronic board in
case of failure.
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5. OPERATION
5.1 CONTROLS
1. Door
It hermetically seals the cylinder during the
working cycles. It can be easily removed for
cleaning purpose.
2. Safety grid – hopper cover
It allows the operator to charge the product under
safe conditions. The cover prevents the batch to
get in contact with dust.
3. Door locking handle (C119)
It hermetically seals the door, when the lever is
turned downwards. To open the door, make sure
that all product has been delivered and that the
machine is in STOP position, then turn the lever
upwards to unlock the door and turn it outwards.
4. Door locking knobs (C122)
They hermetically seal the door. To open, make
sure that the whole product has been delivered
and that the machine is in STOP position, then
turn the two knobs outwards to unlock the door;
pull the door lower side outwards by means of the
delivery door handgrip.
5. Pushbutton panel
It allows selecting the working programs.
6. Delivery door
It is used to deliver ice-cream and to run off water
while cleaning the cylinder. To unlock it, turn it to
the right (C119) or to the left (C122).
7. Drip drawer
It allows collecting liquid leakage from the
cylinder stuffing box.
8. Electric box
9. Power/water supply inlet
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5.2 CONTROL PANEL
1. DISPLAY
It displays all information about the working processes and the allowed settings.
2. TER LED
It warns about any malfunction in the system
3. STOP
Whatever working cycle is in progress, it stops the machine and cancels any function in
progress.
4. DELIVERY/ UP
By pressing the DELIVERY pushbutton, only the agitator motor keeps on running. The
door safety catch is enabled and the agitator motor stops running after 30’ of operation,
the DELIVERY pushbutton warning light starts blinking.
5. SEMI-AUTOMATIC PRODUCTION/ ENTER
The SEMI-AUTOMATIC PRODUCTION pushbuttons activates the freezing cycle with
automatic control of the consistency setting.
6. TIME PRODUCTION / DOWN
The TIME PRODUCTION pushbutton activates the freezing cycle with time control.
7. GRANITA PRODUCTION
The GRANITA PRODUTION pushbutton activates both the GR1 program -
consistency control and continuous agitation - and the GR2 program - time control
and cyclic agitation.
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5.3 GELATO AND GRANITA PRODUCTION
After the machine has been installed according to the
instructions reported in chapter 3 and carefully
cleaned and sanitized according to the instructions
reported in chapter 6, proceed as follows to start up
the ice-cream production:
- Check that the master switch is closed, the STOP
pushbutton is lighted up and the water supply
cock is open.
- Lift the hopper cover and pour the mixture into
the cylinder. Observe the suggested minimum
and maximum quantities per cycle according to
the following table:
MODELL MIN (LITRES) MAX (LITRES)
C119 1 4
C122 1 3
- Replace the cover on the hopper to prevent dust
and other impurities from getting in contact with
the mixture.
The non-observance of the minimum and maximum
batch values can cause the malfunction of the
machine and, sometimes, serious damages.
TAYLOR batch freezers SERIES – C allows freezing
batches at 85°C.
The introduction of batches at 85°C makes freezing
times grow much longer. This condition is absolutely
normal and does not depend upon a defect in the
machine.
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5.3.1 GELATO PRODUCTION WITH CONSISTENCY CONTROL
- By pressing the SEMI-AUTOMATIC
PRODUCTION pushbutton, the display lightens
indicating the last consistency setting.
Pushbuttons UP – ENTER – DOWN lighten as
well. Now the machine is ready to enter a new
gelato consistency setting.
If after 5 seconds no pushbutton is pressed, the
machine will automatically start according to the
last consistency set displayed.
- Increase and decrease the consistency value
displayed by means of the UP and DOWN
pushbuttons. Once obtained the desired value
push ENTER to save the data. The freezing cycle
starts.
The max. possible value is 250, but not all mixes
are suitable to achieve this consistency value.
- After a few minutes, once the required
consistency has been achieved, the compressor
stops, the PRODUCTION pushbutton blinks and
an intermittent beep is release to warn the
operator that the ice-cream can be drawn out. If
this is not possible, the agitator keeps on rotating
until the consistency level falls by a
predetermined percentage value and the ice-
cream PRESERVATION phase begins, which can
be stopped at any time with the delivery of the
ice-cream.
- Press DELIVERY pushbutton to draw the ice-
cream out and completely open the delivery door
by means of the apposite lever.
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5.3.2 GELATO PRODUCTION WITH TIME CONTROL
- By pressing the TIME PRODUCTION pushbutton
the display lightens, indicating the last time
setting. Pushbuttons UP – ENTER – DOWN
lighten as well. Now the machine is ready to enter
a new duration time of the freezing cycle.
If after 5 seconds no pushbutton will be pressed,
the machine will automatically start according to
the last time set displayed.
- Increase and decrease the time by means of the
UP and DOWN pushbuttons. Once obtained the
desired value push ENTER to save the data. The
freezing cycle starts.
The longest possible freezing duration is 30’, but
such long times might only be selected in
presence of some extremely hot mixes.
- After the selected time has elapsed the
compressor stops, the TIME PRODUCTION
pushbutton blinks and a beep tone warns the
operator that the ice-cream is ready for delivery. If
the ice cream draw cannot be performed
immediately , the agitator turns until the
consistency level falls by a predetermined
percentage value and the ice-cream
PRESERVATION phase begins. This can be
stopped at any time with the delivery of the ice-
cream.
- Press DELIVERY pushbutton to draw the ice-
cream out and completely open the delivery door
by means of the apposite lever.
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5.3.3 GRANITA PRODUCTION
GR1 GRANITA CYCLE
Here it is possible to set and program the consistency values, exactly as the ice cream
semi-automatic production cycle.
- By the press of the GRANITA pushbutton both the display – showing GR1 – and UP-
ENTER-DOWN pushbuttons lighten. Now the machine is ready for the selection of the
desired granita program.
- Press ENTER pushbutton to confirm the GR1 cycle selection.
- The display shows the last consistency value set. Press UP and DOWN pushbuttons
to increase or decrease the required consistency value (within a range between 120
and 180). After setting the required value, press the ENTER pushbutton to confirm the
program and start the cycle. The recommended value ranges between 140 and 160.
- During this cycle the compressor and the agitator keep on working without
interruptions. Once the programmed consistency value has been reached, the
GRANITA pushbutton blinks and an intermittent beep is released.
- Press the STOP pushbutton and deliver the product.
- If this is not possible, the agitator keeps on rotating until the consistency level falls by a
predetermined percentage value and the granita PRESERVATION phase begins,
which can be stopped at any time with the delivery of granita.
GR2 GRANITA CYCLE
The programming of this cycle is based on the working time and cyclic agitation control.
- Pressing the GRANITA pushbutton both the display – showing GR1 – and UP-
ENTER-DOWN pushbuttons lighten. Now the machine is ready for the selection of the
required granita program.
- Press UP or DOWN pushbuttons to select the GR2 cycle.
- Press ENTER pushbutton to confirm the GR2 cycle selection.
- The display shows the last selected time. Press UP and DOWN pushbuttons to
increase or decrease the processing time for the production of granita. (within a range
between 1’ to 10’). Once the required value has been set, press ENTER to confirm the
program and start the cycle. The recommended value ranges between 3’ and 7’.
- During this cycle the compressor keeps on working without interruptions, while the
agitator stops for 10 seconds and runs for half a second alternately. After the
programmed time has elapsed, the PRODUCTION pushbutton blinks and an
intermittent beep is released. Press the STOP pushbutton and deliver the product.
The GR2 program DOES NOT provide the automatic conservation of the product at the
end of the cycle.
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6. MAINTENANCE
6.1 ROUTINE MAINTENANCE (ADDRESSED TO THE USER)
During production, cleaning and maintenance operations, never touch the machine with
hands or tools without making sure that the machine has been disconnected from mains.
In case of troubles, make sure that they are not caused by a lack of servicing. On the
contrary, ask for the intervention of a TAYLOR customer service. In case it is necessary to
replace a piece, always ask a distributor or an authorized retailer for ORIGINAL spare
parts.
It is advisable to make the machine be checked by a Customer Service every 6/8 months.
6.1.1 CLEANING AND SANITIZATION
Bacteria and moulds easily proliferate due to the presence of fats in cream, that is why it is
necessary to carefully wash and clean all parts in contact with the product, such as the
cylinder, the agitator and the door.
Rustless materials and/or made of plastic for food
industry used for our machines, in conformity with the
most severe international standards, make washing
operations easier, however they cannot prevent mould
proliferation, etc. caused by insufficient cleaning.
TAYLOR recommends cleaning the tank and the parts
in contact with the product after the employment and
in any case in compliance with the sanitary standards
in force in the country of installation. To thoroughly
clean your batch freezer, proceed as follows:
1. Pour 3 litres (C122) or 4 litres (C119) of clean cold
water into the cylinder.
2. Press the DELIVERY pushbutton and make the
machine run for a few minutes. Press STOP and
run off the washing water. Repeat the operation
until the water coming out of the cylinder is clean.
3. Pour 3 litres (C122) or 4 litres (C119) of detergent
solution/sanitizer into the cylinder.
4. Press the DELIVERY pushbutton and make the
machine run for a few minutes. Then press STOP
and run off the detergent solution.
5. For models C119 dismantle the door. To do this,
turn the lever upwards, make the door rotate
towards the left and holding it with a hand, remove
the hinged knob with the other hand. At this point
the door can be disassembled.
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ENGLISH - 18
6. For models modello C122 turn the two knobs
outwards, seize the bent lever and pull it to remove
the door.
7. Dismantle the door into pieces:
•Unscrew the handle adjusting knob
•Remove the handle
•Remove the delivery door and the spring
•Draw the OR rings out
8. Pull the agitator and the stuffing box out.
9. Wash all components with a detergent/sanitizer
solution. Let them dry in the open air.
10. Accurately sanitize the cooling cylinder.
11. Remove the drip drawer from the panel and
thoroughly wash it. If the drip drawer contains
some misture, the agitator stuffing box is leaking
and shall be replaced.
12.Lubricate the OR rings and the stuffing box with
lubricant for food industry only, which is provided
as standard. Once a week, it is advisable to rotate
the agitator stuffing box so that the rubber
elasticity can be recovered.
- To preserve plastic components and gaskets,
never use solvents and/or diluents during washing.
- Sanitizing chemicals shall be used according to
laws in force and with the utmost caution.
- After any sanitizing operation, it is indispensable
not to touch the sterilized parts either with hands
or with towels, sponges or other.
- Avoid making the agitator run empty, as the
machine can be damaged.
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6.1.2 MAINTENANCE OF AGITATOR AND GASKETS
The agitator blades are equipped with scraping pads made of atoxic plastic materials
suitable for food industry. These components are subject to wear according to the
characteristics of the employed mixture: with high sugar content and low fat percentage a
remarkable wear of pads can be the detected.
When the clearance between the pads and the cylinder is excessive, the agitator is no
more able to perfectly scrap the cooling cylinder walls resulting in an extention of batch
freezing times. To restore the machine performance, it is sufficient to replace the scraping
pads.
Each time the machine is cleaned, it is necessary to also lubricate all rubber gaskets with
lubricant based on food Vaseline (provided as standard) or similar and also carry out the
periodical turnover with the ones supplied with the machines.
6.1.3 REFRIGERATING UNIT
In case of machine provided with air condenser, it is necessary to periodically clean the
condenser fins from the dirtiness sucked in by the fan motor, which can obstruct it and
considerably reduce its efficiency.
To clean the condenser, make use of a brush or an exhauster.
In case of machine with water-cooled condenser
(C119) it is necessary to run off the water present in
the condenser if temperature is expected to fall
beneath 0° C. Disconnect the water inlet pipes after
the delivery of water has been interrupted by means of
the cut-off cock; remove the right side panel to reach
the service valve and remove it. Let all water present
in the circuit run off.
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