Exakt 312 User manual

Operating instructions
Diamond Pathology Saw
EXAKT 312
Edition 10_2010 - 38891EN-900-AB
It is imperative you read the operating instructions prior to placing the unit
in operation for the first time! Follow safety instructions!
Translation of original operating instructions (for the end user)
E
N
English

Edition 10_2010 - 38891EN-900-AB
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EXAKT Advanced Technologies GmbH
Robert-Koch-Strasse 5
22851 Norderstedt
Germany
Tel: [phone] Fax: [phone]
E-mail: [email protected] http://www.exakt.de
Imprint:
Operating instructions EXAKT 312
1st issue April 2010
© EXAKT Advanced Technologies GmbH, Norderstedt
Layout: WBS/TR06
Text layout: WBS/TR06
Illustrations: EXAKT Advanced Technologies GmbH, WBS/TR06
This documentation is copyrighted by EXAKT. Without prior written approval, the
documentation may not be copied or be used contrary to the legitimate interests of
EXAKT.
Subject to change without notice!

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Contact addresses
Manufacturer's address:
EXAKT Advanced Technologies GmbH
Robert-Koch-Strasse 5
22851 Norderstedt
Germany
Tel: [phone] Fax: [phone]
E-mail: [email protected] http://www.exakt.de
Dealer's address and service address:
Note:
In case of enquires related to service and to order spare parts, please contact
the dealer from whom you purchased the unit.

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Table of contents
1 Safety............................................................................................................................ 7
1.1 General safety instructions.....................................................................................7
1.2 Safety devices........................................................................................................ 9
Emergency-stop pushbutton.............................................................................. 9
Nip guard........................................................................................................... 9
Acknowledge button ..........................................................................................9
Door lock.........................................................................................................10
Lockable main switch.......................................................................................10
2 About these instructions ........................................................................................... 11
2.1 Warning and danger symbols............................................................................... 11
2.2 Significance of signal words................................................................................. 11
2.3 Conventions.........................................................................................................12
3 Description of function .............................................................................................. 13
3.1 Correct use........................................................................................................... 13
3.2 Application............................................................................................................ 13
3.3 Special properties.................................................................................................13
3.4 Features............................................................................................................... 14
4 Description of the unit ............................................................................................... 15
4.1 Scope of delivery.................................................................................................. 15
4.2 Optional accessories............................................................................................ 16
4.3 An overview of the EXAKT 312 ............................................................................ 18
Front view........................................................................................................ 18
Right side view ................................................................................................19
Rear and left side view.....................................................................................20
Front view, doors removed............................................................................... 21
5 Installation .................................................................................................................. 22
5.1 Transport.............................................................................................................. 22
5.2 Installation location...............................................................................................22
5.3 Installing the EXAKT 312...................................................................................... 23
5.4 Assembly of the unit.............................................................................................23
Assembly of the work table, 1st part................................................................ 24
Fitting the top pulley.........................................................................................25
Fitting the cutting band ....................................................................................25
Centring the cutting band.................................................................................28
Fitting the doors............................................................................................... 29
Assembly of the work table, 2nd part...............................................................29
Mounting the splash guard............................................................................... 30
5.5 Connection to water and power supply.................................................................31

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Connecting the EXAKT 312 to the drainage system ........................................ 31
Connecting the EXAKT 312 to the water supply...............................................31
Connecting the EXAKT 312 to the power supply..............................................32
6 Placing in operation for the first time ....................................................................... 32
6.1 Undertaking a test run..........................................................................................33
6.2 Ending a test run..................................................................................................33
6.3 Checking the cutting band centring ......................................................................34
7 Routine operation....................................................................................................... 35
7.1 Preparing routine operation.................................................................................. 35
7.2 Undertaking routine operation..............................................................................36
Adjusting the height of the top cutting band guide............................................ 36
Adjusting the cutting band speed.....................................................................37
Cutting the sample...........................................................................................38
Ending the cutting process............................................................................... 38
7.3 Ending routine operation...................................................................................... 38
8 Cleaning...................................................................................................................... 39
8.1 General cleaning instructions............................................................................... 39
8.2 Cleaning in accordance with hygiene regulations.................................................39
8.3 Cleaning schedule................................................................................................ 40
8.4 Cleaning agents................................................................................................... 41
8.5 Cleaning and pre-disinfecting...............................................................................41
Cleaning the work table and external housing.................................................. 41
Pre-disinfecting the external and internal housing............................................ 41
Pre-disinfecting the work table.........................................................................41
8.6 Disinfecting...........................................................................................................42
Disinfecting the cutting band............................................................................ 42
Disinfecting the top pulley................................................................................ 43
Disinfecting the bottom pulley..........................................................................44
Disinfecting the cutting band guide.................................................................. 45
Disinfecting the internal and external housing.................................................. 46
8.7 Re-fitting removed components............................................................................ 46
9 Maintenance ............................................................................................................... 47
9.1 Maintenance after each use.................................................................................47
Cutting band.................................................................................................... 47
Cleaning a soiled cutting band using a whetstone............................................ 47
Removing the cutting band..............................................................................47
Fitting the cutting band ....................................................................................48
Band guide, top ............................................................................................... 50
Cutting band guide, work table.........................................................................50

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Cutting band flushing, bottom..........................................................................50
Drain pan.........................................................................................................50
9.2 Weekly maintenance............................................................................................ 50
Cooling water system ......................................................................................50
Flush water system..........................................................................................50
9.3 Maintenance every six months.............................................................................51
Cooling water hose..........................................................................................51
Replacing the cooling water hose.................................................................... 52
Checking the EXAKT 312 is level .................................................................... 52
Mains cable ..................................................................................................... 52
9.4 Annual maintenance.............................................................................................53
Replacing the yellow belt................................................................................. 53
Electrical system and safety circuit.................................................................. 53
9.5 Maintenance as required...................................................................................... 54
Replacing a fuse..............................................................................................54
10 Faultfinding and troubleshooting.............................................................................. 56
11 Disposal......................................................................................................................58
11.1 Disposing of packaging........................................................................................ 58
11.2 Disposing of unit................................................................................................... 58
12 Technical data............................................................................................................. 59
13 Spare parts and consumables................................................................................... 60
13.1 Spare parts list, EXAKT 312 diamond pathology saw........................................... 60
13.2 Consumables....................................................................................................... 61
13.3 Optional accessories............................................................................................ 61
14 Glossary......................................................................................................................62
15 Index............................................................................................................................ 63
16 Declaration of conformity.......................................................................................... 65

Safety
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1 Safety
1.1 General safety instructions
Every individual who is tasked with setting up, placing in operation,
operation, maintenance and care of the EXAKT 312 and the related
components must have read and understood these instructions, in
particular the Safety chapter.
If necessary instruction must be provided taking into account the specific
qualifications of the related individual.
It is imperative all safety instructions are followed for your safety.
Prior to placing the unit in operation, the operator must ensure all safety-
related conditions are met.
Note The applicable accident prevention regulations and generally applicable
health and safety regulations are to be followed.
Refrain from any action that:
•places the life and limb of the user or third parties at risk,
•causes degradation of the unit or other items,
•impairs the safety and the function of the unit or
•disregards the safety instructions stated.
The unit may only be maintained by individuals who are familiar with the
unit and informed about the hazards, and who have the necessary
qualifications.
Risk of electric shock!
Mains cable damage can result in serious injuries or death due to an
electric shock and cause damage to the unit.
uNever place the EXAKT 312 in operation with a damaged mains
cable.
uAlways check mains cable for damage.
uProtect mains cable against heat, aggressive liquids and sharp edges.
uLay mains cable so that it cannot be damaged.
uKeep mains cable away from water.
uUse a splash-proof mains socket.
Have a damaged mains cable replaced by a service engineer.
Danger –very powerful permanent magnets!
Mortal danger for individuals with heart pacemakers due to magnetic
fields.
uIndividuals with heart pacemakers must keep away from magnetic
fields.

Safety
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Danger –biological contamination!
Contaminated samples and contaminated water can cause infections.
uAlways wear the stipulated protective clothing and safety glasses for
work with the EXAKT 312.
uUse suitable disinfection methods in accordance with applicable
statutory provisions and guidelines, and the hygiene regulations.
uDispose of waste water, cleaning agents and used protective clothing
in accordance with applicable statutory provisions and the hygiene
regulations.
Risk of entanglement!
Hair and items of clothing can become entangled in the rotating cutting
band.
uWear tight-fitting clothing during all work.
uProtect long hair with headgear.
Warning –cuts!
Cuts may be caused on contact with the moving cutting band.
uDo not touch the cutting band in operation.
uEnsure you are standing firmly and the working area is clear.
Warning –risk of slipping!
Injuries due to slipping.
uKeep the floor around the EXAKT 312 as dry as possible.
uWear non-slip shoes.
Warning –very powerful permanent magnets!
Risk of injury due to crushing.
uOn opening and closing the doors, do not grasp the edge of the door.
Attention –incorrect mains voltage!
If the mains voltage is incorrect, the EXAKT 312 may be damaged.
uOnly connect the EXAKT 312 to the mains voltage stated on the type
plate.
Attention –damage due to very powerful permanent magnets
Hazard due to magnetic fields for
– magnetic data carriers
– electronic equipment
uElectronic equipment and magnetic data carriers are to be kept away
from magnetic fields.
Attention –damage due to incorrect accessories and spare parts!
The usage of accessories and spare parts that have not been
recommended by EXAKT can impair the safety and function of the
EXAKT 312. Any warranty and/liability on the part of EXAKT for damage

Safety
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caused by accessories or spare parts that have not been recommended
is excluded.
uUse only accessories and genuine spare parts recommended by
EXAKT.
1.2 Safety devices
The safety devices on the EXAKT 312 comply with the statutory
requirements and are aimed at preventing injury or damage.
Emergency-stop pushbutton
The emergency-stop pushbutton is used to stop the cutting band motor
within approx. 4 seconds in case of danger.
Abb. 1 Emergency-stop pushbutton
In case of danger:
uPress the emergency-stop pushbutton 14.
uRectify malfunction.
uPull out the emergency-stop pushbutton 14 to unlock.
uPress the acknowledge button.
The interrupted circuit is closed again. However, the cutting band
does not
re-start automatically.
uTo start the cutting band, press the start button.
Nip guard
The nip guards protect against unintentional entanglement in the rotating
pulleys.
Acknowledge button
After any action that interrupts the safety circuit on the EXAKT312, the
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Safety
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acknowledge button must be pressed prior to restarting the EXAKT 312.
Door lock
An electronically controlled safety circuit ensures the pulleys stop
automatically within 6 seconds on opening the doors.
Lockable main switch
By attaching a padlock the EXAKT 312 can be secured against
unauthorised usage.

About these instructions
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2 About these instructions
In these operating instructions graphic symbols help you to use all
functions correctly and optimally.
2.1 Warning and danger symbols
The symbols listed below warn of a possible risk of injury as well as
damage.
Symbol Term Significance
General safety notice Warns of risk of injury and
damage due to improper
operation.
Mains voltage Warns of injuries and damage
due to electric shock.
Biological
contamination Warns of harm to the health due
to biological contamination.
Hand injuries Warns of hand injuries, e.g.
crushing.
Powerful permanent
magnets Warns of damage due to very
powerful permanent magnets.
No entry for
individuals with heart
pacemakers
Forbids individuals with heart
pacemakers to enter the area
around the permanent magnets.
2.2 Significance of signal words
The sig
nal words listed here identify the severity of the possible source of
a hazard.
Signal word Significance
Danger! Disregard will result in very serious injuries or death.
Warning! Disregard can result in serious injuries and even
death.
Caution! Disregard can result in minor or moderate injuries.
Attention! Disregard can result in damage.

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2.3 Conventions
Symbol Significance
Note Important note This symbol identifies important
additional information.
Tool This symbol indicates that a
certain tool or consumable is
required.
•Bullet-point list Properties of the unit or
individual components are given
as a list of points.
uInstructions Instructions prompt you to do
something in the sequence
stated.
Disposal Information on the disposal of
packaging material, wearing
parts and faulty parts of the unit.

Description of function
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3 Description of function
The following subjects are described in this chapter:
•Correct use
•Application
•Special properties
•Features
3.1 Correct use
Permanently setup engine-powered band saws are used in medical
pathology for quickly cutting tissue samples and artificial implants for
histological studies.
The diamond pathology saw EXAKT 312 is designed as a cutting band
system for cutting fresh animal and human tissue, bones and implants as
per the safety instructions and in accordance with the relevant standards.
The EXAKT 312 is only of limited suitability for cutting implants made of
ductile substances (e.g. soft a
luminium, copper), as the chip clearance on
the cutting band can quickly become clogged on cutting such materials.
The EXAKT 312 is only intended to be used in medical pathology. In this
application only the original components supplied may be used. Any ot
her
usage beyond that stated is considered incorrect use. The manufacturer
is not liable for resulting damage. The risk is borne solely by the user.
3.2 Application
The EXAKT 312 has been developed for use in medical pathology. Users
are doctors, scientists and specialist medical personnel.
3.3 Special properties
Currently, band saws with toothed saw bands, as are used in the meat
processing industry, are used in pathology. They involve a high risk of
injury. The EXAKT 312 stands out compared to these band saws due to:
•a lower risk of injury in case of unintentional contact with the cutting
band
•high cut quality, even on bones with implants
•a lower risk of infection due to water flushing/cooling of the cut
•easy cleaning and disinfection

Description of function
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3.4 Features
The EXAKT 312 is equipped with the following parts as standard:
•Integrated, adjustable water flushing/cooling
•Height-adjustable cutting band guide
•Cutting band speed control
•Splash guard
•Safety devices:
– Emergency-stop pushbutton
– Nip guard
– Acknowledge button
– Door lock
– Lockable main switch

Description of the unit
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4 Description of the unit
The following subjects are described in this chapter:
•Scope of delivery
•Optional accessories
•An overview of the EXAKT 312
4.1 Scope of delivery
The scope of delivery of the EXAKT 312 diamo
nd pathology saw includes
the following components:
•Saw base unit
•Cutting band (as required)
•Work plate (plastic)
•Work table tray with support
•Run-off plate
•Cutting band guide, work table
•Door, top
•Door, bottom
•Pulley, top, with yellow belt (pulley, bottom, is pre-assembled)
•Water supply hose incl. clips
•Water drain hose incl. clips
•Splash guard (1 x)
•Double open-end spanner AF 14/17
•Screwdriver size 4
•Hexagon key set
•Spirit level
•Operating instructions

Description of the unit
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4.2 Optional accessories
To make the work easier, the following accessories can be ordered for
the EXAKT 312 (for order numbers see section 13.3 Optional
accessories):
Accessory Description
Rip fence
For straight and parallel cuts on tissue
samples a rip fence can be installed on the
work table.
Line laser
To align the cutting plane on the sample
with the aid of the laser projection of the
saw blade plane.
Cleaning gun
For intermediate cleaning and rinsing of the
work plate after use, we recommend a
cleaning gun. The cleaning gun is
connected to the water supply connection.
When not in use it is placed in a holder on
the base.
Castor set
A castor set eases the transport of the saw
base unit to the installation location. The
castors can be locked once the unit is
setup.

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Table illumination
A LED-ledge gives permanent illumination
of the work table. Optimum illumination of
the sample during cutting with low energy
consuption (approx. 5W)
Large splash
guard
Better cover of the sample especially for
large samples or when working with high
cooling flush. Very good protection against
spraying water by a large plexiglass plate
additionally with flexible plastic foils. Retrofit
at each machine can easilly done by the
operator.
Additional diamond
cutting band for cutting
implants
On cutting implants the cutting band will
wear very quickly. It is recommended to use
separate cutting bands for cutting implants
and for cutting fresh samples.
Whetstone
With some samples the cutting band will
clog very quickly. The cutting band can be
cleaned quickly and conveniently using the
whetstone.

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4.3 An overview of the EXAKT 312
Front view
Abb. 2 Front side of unit
1 Splash guard 8 Door, bottom
2 Door, top
3 Cutting band 10 Drain pan to drain off the
waste water
4 Work plate (plastic) 11 Drain nozzle for the water
drain hose
5 Cutting band guide, work
table 12 Flush water control to
control the amount of flush
water
6 Work table tray to drain off the
waste water 13 Cooling water control to control the cooling water
flow rate
7 Run-off plate, connected under
the work table tray
2
11
8
3
4
5
6
7
10
12
13
1

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Right side view
Abb. 3 Right side of unit
14 Emergency-stop pushbutton to stop the cutting band within
approx. 4 seconds
15 Cutting band speed control
16 Start button to start the cutting band
17 Stop button to stop the cutting band after 6 seconds
18 Tensioning lever for tensioning and relieving the tension on the
cutting band
19 Clamping bolt for the top cutting band guide
19a Clamping bolt for the splash guard
18
17
14
16
15
19
19a

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Rear and left side view
Abb. 4 Rear and left sideof unit
20 Adjusting lever (outer) to adjust the pulley for cutting band
centring
21 Acknowledge button to restart the unit after interruption
22 Main switch to switch on and off the mains voltage
23 Water connection for cooling and flushing
24 Locking lever (inner) to lock the pulley setting
24
22
20
21
23