Cooli english

Struers Cooling UnitsInstruction Manual

Manual No.: 15767001

Date of Release 10.10.2008

Struers Cooling Units Instruction Manual

Always state Serial No and Voltage/frequency if you have technical questions or when ordering spare parts. You will find the Serial No. and Voltage on the type plate of the machine itself. We may also need the Date and Article No of the manual. This information is found on the front cover. The following restrictions should be observed, as violation of the restrictions may cause cancellation of Struers legal obligations: Instruction Manuals: Struers Instruction Manual may only be used in connection with Struers equipment covered by the Instruction Manual. Service Manuals: Struers Service Manual may only be used by a trained technician authorised by Struers. The Service Manual may only be used in connection with Struers equipment covered by the Service Manual. Struers assumes no responsibility for errors in the manual text/illustrations. The information in this manual is subject to changes without notice. The manual may mention accessories or parts not included in the present version of the equipment. The contents of this manual is the property of Struers. Reproduction of any part of this manual without the written permission of Struers is not allowed. All rights reserved. © Struers 2008. Struers A/S Pederstrupvej 84 DK-2750 Ballerup Denmark Telephone +45 44 600 800 Fax +45 44 600 801


Struers Cooling Units Safety Precaution Sheet To be read carefully before use 1. The unit must be installed in compliance with local safety regulations.

2. To achieve maximum safety and lifetime of the machine, use only original Struers consumables.

3. Observe the current safety regulations for handling, mixing, filling, emptying and disposal of the additive for cooling fluid. Do not use flammable cooling fluid.

4. The machine must be disconnected from the mains prior to any service.

5. The recirculation pump must be disconnected from the power supply prior to removal from the cooling unit.

6. The UV lamp must not be switched on when not mounted on the cooling unit. It must be disconnected from the power supply prior to removal from the cooling unit.

The equipment should only be used for its intended purpose and as detailed in the Instruction Manual. The equipment is designed for use with consumables supplied by Struers. If subjected to misuse, improper installation, alteration, neglect, accident or improper repair, Struers will accept no responsibility for damage(s) to the user or the equipment. Dismantling of any part of the equipment, during service or repair, should always be performed by a qualified technician (electromechanical, electronic, mechanical, pneumatic, etc.).


Disposal Equipment marked with a WEEE symbol contain electrical and electronic components and must not be disposed of as general waste. Please contact your local authorities for information on the correct method of disposal in accordance with national legislation.


1

User’s Guide Table of Contents Page

1. Getting Started Struers Cooling Units Components ................................................... 2 Getting Acquainted with Struers Cooling Unit .................................... 2 Assembling the Struers Cooling Unit ................................................. 3

Mounting the Cooling Unit’s Components .................................. 5 Cooli-5 Control Unit: Rear Panel ................................................ 6 Connecting Components to the Cooli Control Unit ..................... 6

Preparing the Cooling Unit for Use .................................................... 7 Filling the Tank ........................................................................... 7 Connecting to the Power Supply ................................................ 7 Band filter: Inserting Filter Paper ................................................ 8 Mounting the Filter Paper Roll .................................................... 9 Adjusting the Sludge Scraper Bar .............................................. 9 Static filter: Inserting Filter Paper ............................................. 11

Connecting the Cooling Unit to the Machine ................................... 12

2. Operation Cooli-5 Control Panel ...................................................................... 13 Control Panel Indicators/ Functions ................................................. 14 Changing the Paper in the Band Filter ............................................ 15 Static Filter: Changing the Filter Paper ............................................ 16

3. System Components and Accessories ..................... 17

4. Consumables ....................................................................... 19

5. Troubleshooting Problem Solving .............................................................................. 20

Location of Fuses ..................................................................... 20 Cooli-5 Messages ........................................................................... 21

Messages Displayed by Cut-off Machine ................................. 21

6. Maintenance Daily Service ................................................................................... 24 Weekly Service ............................................................................... 25 Monthly Service ............................................................................... 26

7. Technical Data .................................................................... 27


2

1. Getting Started The cooling unit will be delivered as a number of separate components, which will need to be assembled before use. 1 Wheel-mounted cooling unit tank (50 l or 100 l) 1 Recirculation pump 1 Static filter (50 and 100 l tanks), OR Band filter (100 l tank only). 1 Control unit (Cooli-1, Cooli -3 or Cooli -5) Temperature sensor (requires Cooli-5 control unit) Water Level sensor (requires Cooli-5 control unit) Magnetic filter Water filling unit (requires Cooli-5 control unit and Water Level Sensor) Water pressure sensor (requires Cooli-5 or Cooli-3 control unit) UV-C lamp (requires Cooli-5 control unit) Take a moment to familiarise yourself with the location and names of some of the cooling unit’s components.

Wheel mounted tank Handle Control unit Band filter Detachable cover Paper roll

Struers Cooling Units Components

Main components

Optional Components (to be mounted on the tank)

Getting Acquainted with Struers Cooling Unit


3

Mount the components on the tank.

Mounting positions for: Water level sensor UV lamp or magnetic filter Water filling unit Static filter unit Cable holders Adapter ring for small pump Recirculation pump Cooli-1, -3, -5 control unit

Assembling the Struers Cooling Unit

50 l Tank


4

Mounting positions for: Adapter ring for small pump Recirculation pump Tube from water filling unit UV lamp Water Level Sensor Magnetic filter Cable holders Cooli-1, -3, or -5 control unit Water filling unit Filter unit (static or band)

100 l Tank


5

Mount the Cooli control unit by slotting the unit’s bolts into the

holes provided and then securing (from underneath) with the supplied nuts.

Mount the recirculation pump in the hole provided.

There are two sizes of pump available: Small pump: use the adapter ring to reduce the hole size. Large pump: remove the adapter ring to increase the hole size.

Remove the 90° bend with the quick coupling from the recirculation pump and replace it with the water pressure sensor. Make sure the water pressure sensor points upwards.

Mount the metal holder in the hole provided and secure from

inside the tank with the nuts supplied (see illustration, below)

Slot the water level sensor into the metal holder. Mount the filling unit on the position indicated on the drawing by

securing it with the supplied bolts and nuts. When a band filter unit is used on the 100 l tank the water filling unit is mounted to the side of the band filter unit, next to the recirculation pump. Guide the hose through the hole and down into the recirculation tank.

Mounting the Cooling Unit’s Components

Note: A number of these components are optional.

Cooli-1, -3, or -5 Control Unit

Note: The control unit’s control panel must be mounted

facing the cooling unit tank’s handle

Recirculation Pump

Water Pressure Sensor

Water Level Sensor

Water Filling Unit


6

Mount the UV lamp in the hole provided. Mount the magnetic filter in the hole provided. Mount the filter unit in the hole provided. Mount the Band filter unit in the hole provided.

The diagram below shows the sockets to which cables from the cooling unit’s components have to be connected. This example shows the Cooli-5 control unit’s rear panel. The other control units (Cooli-1 and Cooli-3) have different numbers of sockets. However, all control units have a recirculation pump and a 24 V / CAN socket.

After mounting the components on the tank, connect the cables to the Cooli control unit: Locate the correct socket and plug in the cable from the

component. The pin and hole locations of the sockets and cables are all different from each other, so that it’s only possible to connect the right cable to the right socket.

UV Lamp

Magnetic Filter

Static Filter Unit

Band Filter Unit (100 l tank only)

Note: Mount the filter with its connection socket facing the control unit.

Cooli-5 Control Unit: Rear Panel

Note: The 24 V / CAN (A) is connected to the machine

with which the cooling unit is used. The 24 V cable used is supplied with the Cooli control unit.

Connecting Components to the Cooli Control Unit


7

50 l tank, fill with cooling fluid comprised of 48.5 l water and 1.5 l

Struers Additive. 100 l tank, with cooling fluid comprised of 97 l water and 3.0 l

Struers Additive.

Connect the appropriate power supply cable (Schuko or Nema)

to the end of the power cable fixed to the control unit.

Place the cable itself in the cable hooks mounted on the cooling

unit tank (this is to prevent the cable trailing on the ground and being damaged).

Connect the power cable to the appropriate single-phase power supply.

Preparing the Cooling Unit for Use Filling the Tank Important!

The cooling unit will be very heavy when full. Before filling the tank, check that the cooling unit is in position.

If this is not possible, ensure that the tank is directly in front of its final position (e.g. the cut-off machine’s cooling unit compartment), with the

tank’s wheels in-line with the sides of the compartment and the control unit at the front so that it is ready to be pushed into position without being moved

to the left or right.

Note To avoid corrosion, Struers recommends the use of Struers Additive in the

cooling water (percentage stated on the Additive container). Remember to top up with Struers Additive each time you refill with water.

Connecting to the Power Supply

Important! Place the supplied cable box around the connection of the two cables.

This protects the cables from water.


8

Insert a roll of filter paper before operation. Remove the following band filter components (see illustration,

below):

Paper sensor cover Paper guide plate (rear) Front cover Sludge trough Axle retaining catch

Release the axle by lifting the axle retaining catch, then pull the axle out through its mounting hole

Axle

Band filter: Inserting Filter Paper


9

To mount the new filter paper roll, proceed as follows (see also “Filter paper path”, below): Mount a roll of filter paper onto the paper roll holder at the rear of

the band filter - underneath the paper sensor cover. Pull out approximately 1 metre of paper from the roll. Lay the paper flat across the band filter, then guide the loose end

over the front edge of the filter and behind the sludge scraper bar.

Wrap the loose end of the paper neatly two to three times around the collect bar (supplied).

Mount the collector bar onto the axle: − Hold the collector bar inside the band filter housing and in

line with the axle’s left-hand side mounting hole. − Slide the axle through the left-hand side mounting hole,

through the collector bar and into the right-hand side mounting hole.

− Lock the axle in position with the axle retaining catch. The path of the filter paper from the paper roll to the collector bar.

Filter paper path Collector bar Sludge scraper bar Check that the Emergency Stop button is pulled out and press

the paper advance button to tension the paper. It is possible to adjust the position of the sludge scraper bar so that more or less material is removed from the filter paper. Loosen the two screws holding the bar and reposition the bar. Secure the screws before continuing operation.

Mounting the Filter Paper Roll

Filter Paper Path

Adjusting the Sludge Scraper Bar


10

After inserting the roll of filter paper: Reassemble the:

− Paper sensor cover − Paper guide plate (rear)

Press the paper advance button to tension the paper. Reassemble the:

− Front cover − Sludge trough

Check that the paper is correctly mounted by pressing the paper advance button. The paper should move smoothly and evenly over the band filter.

Restarting the Band Filter

Important! When the filter paper runs out, a built-in alarm will flash a red light

on the Cooli-3 or Cooli-5 control unit, and on Cooli-5 a "Beep" will sound at regular intervals.

If the unit is placed in a closed compartment e.g. underneath a cut-off machine it might be difficult to notice these alarms. Therefore please check

the remaining length of filter paper on a regular daily basis.

However, when a Cooli-5 control unit is used with a machine that has data communication e.g. Axitom, a message will be displayed on the display of

the connected machine. (See Cooli-5 messages).


11

Water guide plate Holes for outlet hose from connected machine Overflow Bottom of Static Filter Lift the water guide plate up and place a sheet of filter paper on

the bottom of the static filter. Make sure that it completely covers all the holes of the static filter.

Replace the water guide plate with water trap next to the overflow and make sure that the filter paper is held firmly in place.

Insert the water outlet hose from the connected machine into the hole with the correct size in the water guide plate.

Static filter: Inserting Filter Paper

Important The static filter is a so called gravity filter. The debris created during the

cutting or grinding process will settle on the filter paper and cover the paper after a short while. That will force the water to run down the overflow. The water guide plate is equipped with a trap so that both heavy and light dirt particles are kept in the static filter. It is therefore important to place the

water guide plate correctly. It is normal that the water rises in the static filter;

the filter paper should only be replaced when the level of debris is 1 – 2 cm (0.4 – 0.8") high.


12

Connect the cooling unit’s water outlet hose to the quick coupling

on the machine. Connect the 24 V / CAN control cable to the Cooli control unit by

plugging one end into the machine’s control socket (see machine manual for details) and the other end into the socket on the rear panel of the Cooli control unit.

Place the cooling unit underneath the outlet on the connected machine, or lead the outlet hose from the machine into the band filter or static filter unit on the cooling unit tank.

Connecting the Cooling Unit to the Machine


13

2. Operation The diagram below illustrates the Cooli-5 control panel.

Cooli-5 Control Panel

Note For the Cooli-3 and Cooli-5 control units, the paper advance button

also functions as a reset button. After an alarm, press the button to restart the cooling unit.


14

The following table is based on the Cooli-5 control panel. The Cooli-1 and Cooli-3 control panels have fewer keys, compare the keys on the control panel to the ones in the table below. Next to every key there is both a green and a red LED. The LED's will only be illuminated if the respective sensor is connected. The pressure sensor and the pump LED's will only light up after the cooling unit has been started. Depending on the conditions the LED's light up differently. See the overview below for an explanation.

Name Key Function Name Key Function

POWER

Constant Green: Power on. Normal operation.

Constant Red: Cooli is on Standby.

PAPER ADVANCE

Push button to start the Band Filter or to manually advance the filter paper.

Cooli-3 and Cooli-5 only.

This also functions as a reset button. Use the Paper Advance button to reset Cooli after the main power supply has been disconnected or the Emergency Stop has been activated.

TEMPERA-TURE

Constant Green: Normal operation (<50 °C).

Constant Red: Water temperature too high (>50 °C).

Flashing Red: Temperature out of range or Sensor Error.

WATER LEVEL SENSOR

Constant Green: Normal operation.

Flashing Green: Fluid level between Middle and Low levels.

Constant Red: Fluid level low.

Flashing Red: Sensor error.

EMERGENCY STOP

The Emergency Stop disconnects the power supply to Cooli.

Cooli-3 and Cooli-5 only.

PAPER SENSOR


Constant Red: Error. Out of paper.

PRESSURE SENSOR


Constant Red: Error. Low cooling fluid pressure.

PUMP


Constant Red: Error. Pump failure (Overload).

Control Panel Indicators/ Functions


15

When the paper roll runs out, the used roll has to be removed and a new replacement roll inserted, before the cooling unit can be used. To remove the used roll of filter paper: Activate the Emergency Stop button to disconnect the power. If necessary, slide the cooling unit out from the cooling unit

compartment. Press and hold down the paper advance button until all of the

remaining dirty paper has been rolled onto the collector bar.

Remove the sludge trough and the front cover Remove the axle and collector bar.

− Release the axle by lifting the axle retaining catch, then pull the axle out through its mounting hole.

− Support the collector bar as you do this. Dispose of the collector bar and the used paper.

Changing the Paper in the Band Filter

Removing the used Filter Paper Roll

Note Before doing this, ensure that the sludge trough is still in place. When the used paper passes through the sludge scraper bar

a considerable amount of sludge may still be scraped off.


16

To insert the roll of filter paper, also remove the paper sensor cover and the paper guide plate (rear).

Paper sensor cover Sludge trough Paper guide plate (rear) Axle retaining catch Front cover Axle To mount the new filter paper roll, please refer to Mounting the Filter Paper Roll on page 9.

Activate the Emergency Stop button to disconnect the power. Remove the cooling unit from the machine’s compartment. Lift the water guide plate out of the static filter. Remove the entire static filter from the tank and turn it upside

down over a waste container of suitable size. Let the filter paper and the debris fall down into the waste

container and clean the static filter. Replace the static filter on the tank. To mount the new filter paper, please refer to Static filter: Inserting Filter Paper on page 11.

Removing Components to Insert a New Filter Paper Roll

Mounting the New Filter Paper Roll

Important! Before doing this, clean all the surfaces that are in contact with the filter

paper: the plates at the rear, perforated bottom plate and the sludge trough.

Static Filter: Changing the Filter Paper

Mounting the New Filter Paper

NB! Remember to release the Emergency Stop button!


17

3. System Components and Accessories

Specification Code

Cooli-5 control unit Control unit for Struers Cooling Units, to control pump, band filter, pressure sensor, level sensor, water filling unit and UV-lamp. Communicates via LIN-bus with suitable connected equipment.

COOL5

Cooli-3 control unit Control unit for Struers Cooling Units, to control pump, band filter and pressure sensor.

COOL3

Cooli-1 control unit Control unit for Struers Cooling Units, to control pump.

COOL1

Band filter Band filter unit for use on 100 l tank, requires Cooli-5 or Cooli-3 control unit. To be used together with machines creating a lot of debris. Stainless Steel.

COLBF

100 l tank 100 l tank for use with Cooli-5, Cool-3 or Cooli-1 control unit. Can be used with band filter COLBF or static filter COLLF. Stainless steel.

COLLT

50 l tank 50 l tank for use with Cooli-5, Cooli-3 or Cooli-1 control unit. Can be used with static filter COLSF. Stainless steel.

COLST

100 l static filter Static filter for use with 100 l tank COLLT. To be used together with machines creating only small amounts of debris. Stainless steel.

COLLF

50 l static filter Static filter for use with 50 l tank COLST. To be used together with machines creating only small amounts of debris. Stainless steel.

COLSF


18

Specification Code

Temperature sensor Sensor for measuring the water temperature in 100 l or 50 l tank COLLT or COLST. Requires Cooli-5 control unit.

COLTS

Water Level sensor Sensor for measuring the water level in 100 l or 50 l tank COLLT or COLST. Requires Cooli-5 control unit.

COLLS

Magnetic filter Magnetic filter candle for the removal of magnetic particles. Can be used in 100 l and 50 l tank COLLT or COLST and other recirculation cooling units.

COLMF

Water filling unit Automatic filling unit for 100 l or 50 l tank COLLT or COLLST. Requires level sensor COLLS and Cooli-5 control unit.

COLFU

Water pressure sensor Sensor monitoring water pressure, built together with large or small pump COLBP or COLSS. Will switch pump off when no pressure. Requires Cooli-5 or Cooli-3 control unit.

COLPS

UV-C lamp UV lamp to avoid the formation of bacteria and algae. Requires Cooli-5 control unit.

COLUV

Large Pump Capacity of 46 l at 1.6 bar. Can be used on 100 l or 50 l tank. Requires Cooli-5, Cooli-3 or Cooli-1 control unit.

COLBP

Small Pump Capacity of 42 l at 0.2 bar. Can be used on 100 l or 50 l tank. Requires Cooli-5, Cooli-3 or Cooli-1 control unit.

COLSS


19

4. Consumables Specification Code

Band filter paper For use with band filter COLBF

COLFP

Paper for 100 l static filter For use with static filter COLLF 100 pcs

COLLP

Paper for 50 l static filter For use with static filter COLSF 100 pcs

COLSS

Additive for Cooling Fluid 1 l 5 l

ADDUN ADDFI


20

5. Troubleshooting The following table describes the problems that users may potentially experience when using the cooling units and contains advice on how to solve them.

Error Explanation Action Water leaking. Leak in recirculation water hose. Check the hose and tighten the

hose clamp. Water overflow in the recirculation

water tank. Remove the excess water in the tank.

Cool unit stops and cannot be restarted.

Blown fuse(s) Replace using appropriate 15 A, slow-blow fuse(s). See illustration, below.

Samples, cooling unit or equipment corroded.

Insufficient additive for cooling fluid. Add Struers Additive for cooling fluid to the cooling water, using the correct concentration. Check with a refractometer. Follow the instructions in the Maintenance section.

Problem Solving

Location of Fuses

Fuses


21

Messages displayed on the cut-off machine’s screen by the Cooli-5 control unit are intended to inform the user of the cooling unit’s status and advise them of minor operational errors.

The following table shows the messages displayed by the cut-off machine when it is connected to a Cooli-5 control unit, and advice on what actions should be taken if they are seen.

Message Explanation Action

Loose connection in the communication cables between cut-off machine and the Cooli-5 control box or from the control box to the pump motor.

Check the connections. If message persist, contact a Struers Service Technician.

Pump motor overheated. Wait until the motor has cooled down. Check cooling fluid levels.

Defective fuse in Cooli-5. Replace fuse.

Pump motor overloaded. Ensure that the cooling unit’s water outlet hose is not kinked, blocked or obstructed in any way. Ensure that the inlet to the pump is not obstructed in any way. If this does not help, contact a Struers Service Technician.

Band filter motor overloaded or not connected to the cut-off machine.

Check connections to the band filter and from the control unit to the cut-off machine. Check that the filter paper can move freely and is not snagged or trapped. If this does not help, contact a Struers Service Technician.

Emergency stop button has been pressed.

Check that it is safe to restart the cooling unit. To reset and restart the cooling unit, press the paper advance button.

Cooli-5 Messages

Note For the Cooli-3 and Cooli-5 control units, the paper advance button also

functions as a reset button. After an alarm, press the button to restart the cooling unit

Messages Displayed by the Cut-off Machine


22


Paper sensor not covered by filter paper: the filter paper roll is empty.

Check the band filter’s roll of paper and, if necessary, replace it with a new one.

Flow of cooling fluid is too low. Check the cooling fluid level. If the level is low, refill the cooling unit with cooling fluid. If this does not help, contact a Struers Service Technician.

Leak in hose or hose not properly connected.

Check hose connections and that there are no leaks.

Defective flow sensor. Check the connection from the flow sensor to the control box. If this does not help, contact a Struers Service Technician. Note: If the message is due to a defective sensor and the flow of cooling fluid is found to be sufficient, the sensor can be disconnected until a Struers Service Technician has inspected it. Remember that there will be no message pop-ups if the sensor is disconnected.

Water temperature over 50ºC. If cutting performance is affected, check the level of the cooling fluid and allow to cool down.

Cooling fluid in the tank is above the sensor’s maximum level.

Remove the excess cooling fluid from the tank.

Cooling fluid in the tanks is below the sensor’s middle level.

Refill the tank with cooling fluid to bring it up to the required working level.

Cooling fluid in the tank is below the sensor’s minimum level.

Refill the tank with cooling fluid to bring it up to the required working level.

Refilling of cooling fluid completed. Stop refilling the tank. Add the necessary amount of Struers additive to the cooling fluid, before cutting more samples.


23


No communication to Cooli-5 ! The recirculation unit will be controlled like Cooli-1 and Cooli-3, and therefore you can’t receive any sensor status. Error #115

No data communication between cut-off machine and the Cooli-5 control box or from the control box to the pump motor.

Firstly, switch off Cooli-5 and then switch on. Switch off the cut-off machine and then switch on. If message persist, contact a Struers Service Technician. Note: The Cooli-5 unit can still be used as a Cooli-1 or 3.


24

6. Maintenance

The cooling unit should be checked for cooling water after 8 hours’ use. Remember to add Struers Additive for Cooling Fluid: One part of Additive for 33 parts of water. To check the concentration of additive, use a refractometer. Concentration = Brix value. The concentration of additive should always be between 2.7 and 3.3 %. Add Struers Additive for Cooling Fluid if the concentration is too low. Check and if necessary replace the filter paper in the static filter

unit. Check and if necessary empty and clean the static filter of the

Recirculation Cooling Unit. Check and if necessary empty the sludge trough. Check and if necessary replace the roll of filter paper.

Important Activate the Emergency Stop button to disconnect the power

before performing any maintenance work.

Daily Service

Static Filter Unit

Band Filter Unit

NB Always ensure that there is sufficient filter paper on the roll.

The band filter unit will continue to operate even if the filter paper has run out, unless a Cooli-5 control unit is used on a machine

with data communication.


25

The cooling unit should be checked for cooling water at least every week.

Remember to add Struers Additive for Cooling Fluid: One part of Additive for 33 parts of water. To check the concentration of additive, use a refractometer. Concentration = Brix value. The concentration of additive should always be between 2.7 and 3.3 %. Add Struers Additive for Cooling Fluid if the concentration is too low. Refill the Recirculation Cooling Unit. The water level should be

25 mm below the upper edge of the tank. Replace the filter paper in the static filter unit. Clean the static filter on the Recirculation Cooling Unit. Empty and clean the sludge trough. Refill the band filter unit. (The water level should be 25 mm

below the upper edge of the tank). Check and if necessary replace the roll of filter paper.

Clean all the surfaces in contact with the filter paper:

the plates at the rear, perforated bottom plate and the used paper spool.

Remove the filter from its mounting. Slide the plastic outer tube off the magnet. Use a stiff brush to clean the plastic tube. Refit the plastic tube. Place the filter back in its mounting.

Weekly Service Checking the Cooling Water

IMPORTANT! Replace the cooling water immediately if infected by algae or bacteria;

see the section on Monthly Service for instructions.

Static Filter Unit

Band Filter Unit

NB Always ensure that there is sufficient filter paper on the roll.

The band filter unit will continue to operate even if the filter paper has run out, unless a Cooli-5 control unit is used on a machine

with data communication.

IMPORTANT! Always maintain the correct concentration of Struers Additive in the cooling water (percentage stated on the container of the Additive). Remember to

add Struers Additive each time you refill with water.

Magnetic filter


26

Replace the cooling fluid in the cooling unit tank. When replacing the cooling water, the cooling unit is emptied using its recirculation pump. To do this, proceed as follows: Disconnect the cooling unit’s water outlet hose from the quick

coupling on the equipment. Connect the cooling unit’s water outlet hose to the quick coupling

on the extra length of hose supplied with the cooling unit. Place the open end of the hose in a suitable container. Start the equipment. This will start the recirculation pump, to

pump the cooling fluid out of the tank. Stop the equipmentwhen the tank is empty. Empty the cooling unit completely and clean out all water and

debris from the tank. Clean the tank and connected tubes thoroughly.

If the cooling water has been infected with bacteria or algae, flush the tank and tubes with a suitable antibacterial disinfectant

Refill the cooling unit with water using an external water hose or

via direct connection to the water mains. Stop refilling when the water level is 25 mm from the upper edge.

For the 50 l tank, fill with cooling fluid comprised of 50 l water and 1.5 l Struers Additive.

For the 100 l tank, with cooling fluid comprised of 100 l water and 3.0 l Struers Additive.

Monthly Service Replacing the Cooling Water

Emptying the Cooling Unit Tank

Refilling the Cooling Unit Tank IMPORTANT! The cooling unit will be very heavy when full.

Before filling the tank, check that the cooling unit is in position. If this is not possible, ensure that the tank is directly in front of its final position (e.g. the cut-off machine’s cooling unit compartment), with the

tank’s wheels in-line with the sides of the compartment and the control unit at the front so that it is ready to be pushed into position without being moved

to the left or right.

NB! Never refill by pouring the water into the cutting chamber/ turntable

compartment, as it would be impossible to check the increasing level in the tank.

IMPORTANT! Always maintain the correct concentration of Struers Additive in the cooling water (percentage stated on the container of the Additive). Remember to

add Struers Additive for Cooling Fluid each time you refill with water. Use only Struers Additive in the Recirculation Cooling Unit.

Struers Additive is specially selected for use with Struers equipment. Other additives may not be compatible with some of the components of

the equipment .


27

7. Technical Data

Subject Specification

Metric/International US Band Filter Height 341 mm 13.4 “ Width 742 mm (with cover) 29.2 “ Depth 700 mm 27.6 “ Power 45 W 50 l tank Height 260 mm 10.2 “ Width (with extended handle)

520 mm 526 mm)

20.7 “ (21.0 “)

Depth 460 mm 18.1 “ Volume 50 l 13.2 gallons 100 l tank Height 260 mm 10.2 “ Width (with extended handle)

730 mm (736 mm)

28.7 “ (29.0 “)

Depth 670 mm 26.4 “ Volume 100 l 26.4 gallons Small pump Flow 42 l/min at 0.2 bar 11.1 gallons/min at 0.2 bar Power 0.16 kW Large pump Flow 46 l/min at 1.6 bar 12.2 gallons/min at 1.6 bar Power 0.7 kW

Cooli english

Documents

Transcript of Cooli english