Lissmac DTS 420 T User manual

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OPERATING MANUAL
MASONRY SAW
DTS 420 T
LISSMAC Maschinenbau GmbH
Lanzstrasse 4
D-88410 Bad Wurzach
Telefon [phone] / 307 - 0
Telefax +49 (0) 7564 / 307 - 500
[e-mail]
www.lissmac.com
EN

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Legal information This operating manual is valid for:
LISSMAC Masonry Saw
DTS 420 T
Head office:
LISSMAC Maschinenbau GmbH
Lanzstrasse 4
D - 88410 Bad Wurzach
Phone: [phone] / 307 – 0
Fax: [phone] / 307 – 500
[e-mail]
www.lissmac.com
Translation of the original operating manual
Date of issue: 08-2018
This operating manual must not be disclosed or reproduced in any form or
its contents used without written permission to do so. Breaches will result
in claims for compensation. All rights reserved in the event of patent,
registered design or design patent registration.

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Preface to the operating manual
Preface This operating manual is designed to make it easy to familiarise yourself
with the machine and use it for its intended purpose.
The operating manual contains important information on how to operate
the machine safely, properly and economically. Compliance with it will
help to avoid dangers, repair costs and downtimes and increase the
reliability and service life of the machine.
The operating manual must be supplemented with instructions based on
current national regulations for accident prevention and environmental
protection.
The operating manual must be available at the location of the machine at
all times.
The operating manual must be read and used by everybody who
undertakes work on the machine, for example:
Operation, including setting, troubleshooting whilst operating,
removal of production waste, care, disposal of media and
consumables
Maintenance (servicing, inspection and repair) and/or
Transport
In addition to the operating manual and the binding regulations for accident
prevention which apply in the user’s country and at the place of use, the
acknowledged technical rules for safe and correct working practice must als
be observed.
Required tool
A tool in the form of a saw blade is needed to operate the stone cutting
saw. These tools can be purchased from the manufacturer.
Table of contents
1. Basic safety information
2. Machine description
3. Assembly and initial operation preparation
4. Transport
5. Operation
6. Disassembly
7. Maintenance
8. Troubleshooting
9. Conditional connections
10. Warranty

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1. Basic safety information
1.1 Warnings and symbols used in this manual
Danger!
Indicates that by not observing it can result in serious or even fatal injuries.
Caution!
Indicates that by not observing it can result in injuries under certain
circumstances.
Note
Indicates that by not observing it may cause damage to the device or other
material assets.
Symbols on the machine:
Refer to the operating manual
Wear hearing protection
Lube point
Wear breathing protection
Wear goggles
Wear hand protection
Sound pressure level
of the machine
Direction of rotation of the
saw blade
Lashing point for
crane transport
Rotating saw blade
Transport by fork-lift truck
Work procedure:
1. Cut the building block
2. Empty the dust
Do not remove the mains plug
when the saw blade is running
Lock/unlock
the feed lock
Direction of rotation
up/down

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1.1.3 Saw blades
1.7.1
Use the special LISSMAC diamond saw blade for dry cuts on the
masonry saw only.
A sales list of saw blades can be requested from LISSMAC.
Do not cut with toothed saw blades.
The saw blades require a statement of direction of rotation.
Saw blade diameter, saw blade speed and mounting diameter need to
be matched to the machine (see section 2.3).
Do not use damaged saw blades
1.2 Principle of intended use
1.2.1 The masonry saw is exclusively designed for the dry cutting of large-sized
building blocks made of mineral materials. Use only building blocks that are
not suitable for cutting in wet process.
Please note that Poroton and vertical coring bricks can differ from the
composition and the bulk density (hardness), depending on the
manufacturer. The wear on the saw blade is too heavy with the use of hard
Poroton and vertical coring bricks and is therefore not recommended.
The operation of the masonry saw is only permitted with the use of a
corresponding dust extraction system. The dust extraction system used for
cutting the building blocks must also be permitted.
The cutting of wood, metal, plastics or other types of stone is not
allowed!
The manufacturer/supplier cannot accept any liability for damage caused by
unintended use.
Intended use also includes compliance with the operating manual and
compliance with the inspection and maintenance requirements.
1.2.2
The machine must only be used if it is in technically perfect condition and for its
intended use, with an awareness of safety and potential dangers and as set out
in
the operating manual! In particular, faults which may adversely affect its safety
must be rectified immediately.
1.2.3
This masonry saw is only safe
if it is used with saw blades, designed for this machine
(see 1.1.3 and 2.3).

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1.3 Organisational action
1.3.1
Always keep the operating manual at hand at the location of the machine!
1.3.2
Supplements to the operating manual include general statutory and other
binding regulations for preventing accidents and protecting the environment
and must be obeyed!
These duties may also relate, for example, to handling hazardous
substances or wearing personal protective equipment or road traffic
regulations.
1.3.3 The personnel entrusted with the work must have read the operating manual,
particularly the section entitled “Safety information” before starting work. It is
too late to do so during work. This particularly applies to personnel who only
work on the machine occasionally, for example setting and maintenance
personnel.
1.3.4
Occasionally check that the procedures used by the personnel are safe and
show an awareness of the dangers and that they are following the
instructions in the operating manual!
1.3.5
Use personal protective equipment where necessary or if required by
regulations!
1.3.6
Obey all safety information and warnings on the machine!
(See section 1.1.2).
1.3.7
Keep all safety information and warnings on the machine in completely legible
condition (see section 1.1.2)!
1.3.8
In the event of any safety-relevant changes to the machine or the way in which
is operating, shut down the machine immediately and report any fault to the
relevant department/person!
1.3.9
Do not carry out any modifications, additions or conversions to the machine
without the consent of the supplier!
01/03/2
010
Only use genuine spare parts from the manufacturer!
01/03/2
011
Keep to the mandatory intervals for inspections of those set out in the operating
manual (see section 7)!
01/03/2
012
The machine must be cleaned thoroughly before the inspection.
01/03/2
013
The mains plug must be removed from the power supply before starting any
maintenance or repair work.

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1.4 Personnel selection and qualifications; general duties
1.4.1
Only personnel over the age of 18 may be allowed to operate the machine
independently and who received training in how to operate the machine.
1.4.2
The unauthorised presence of persons in the area of movement of the
machine is prohibited!
1.4.3
The operators must take care not to endanger themselves or other persons
during any movements of the machine.
1.4.4
Work on the electrical equipment on the machine may only be carried out by
an electrician or by trained personnel under the management and supervision
of an electrician and in compliance with the electronic regulations.
1.4.5
Only allow personnel being trained, instructed or those completing an
apprenticeship to work on the machine under the constant supervision of an
experienced person.
1.5 Safety information for specific operating phases
1.5.1 Normal operation
1.5.1.1
Do not adopt any procedures which are not completely safe.
1.5.1.2
Take action to ensure that the machine is only used if it is safe and in
functional condition!
1.5.1.3
Check the machine at least once per shift for external signs of damage and
defects. Report any changes (including changes to the machine's operation) to
the relevant department/person without delay. If necessary, shut down the
machine immediately and secure it!
1.5.1.4
If the machine malfunctions, shut it down immediately and secure it. Have all
malfunctions rectified immediately.
1.5.1.5
The masonry saw is exclusively designed for the cutting of building blocks in
dry process. It is prohibited to cut wood or metal!
1.5.1.6
Do not connect the machine to the power supply without a residual-current
circuit-breaker (RCCB) in the power cable.
1.5.1.7
Every day before starting cutting work check:
Condition of the diamond saw blade (cracked saw bands must be
replaced - in case of any doubt inspection must be carried out by an
expert)
Functional condition of the safety equipment
Sufficient cooling water supply - dry cutting is not permitted!
1.5.1.8
Do not jam the saw blade.
1.5.1.9
The mains plug must not be pulled out of the power source under load.
1.5.1.10
Never touch the running saw blade

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1.5.2 Specific tasks within the scope of the use of the machine, maintenance work and troubleshooting
during operation;
disposal
1.5.2.1
Keep to the setting, maintenance and inspection work and intervals specified in
the operating manual including the details for
replacing parts/ part equipment!
This work must be carried out by trained personnel.
1.5.2.2
Notify the operating personnel before starting any special or maintenance
work. Appoint a supervisor.
1.5.2.3
When the machine has been shut down completely for maintenance and
repair work, it must be secured to prevent it being switched on again
unexpectedly. (Remove the power cable!)
1.5.2.4
Before cleaning the machine with water or other cleaning products,
cover/mask all openings into which no water or cleaning product may ingress
for safety and/or functional reasons. The electric motors, switches and plug
connectors are particularly at risk. Cleaning with a steam jet is not permitted.
1.5.2.5
Remove the covers/masking tape completely after finishing the cleaning
work.
1.5.2.6
Always re-tighten screw connections after maintenance and repair work!
1.5.2.7
If safety equipment has to be removed for setting, maintenance and repair
work, the safety equipment must be re-installed and tested immediately after
completing the maintenance and repair work!
1.5.2.8
Ensure that media, consumables and replaced parts are disposed of safely
and in a green fashion.

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1.6 Information about special types of dangers
1.6.1 Electrical energy
1.6.1.1
Only use genuine fuses with the specified amperage. Switch off the machine
immediately, if a fault occurs in the electrical power supply.
1.6.1.2
Only carry out maintenance or repair work when the machine has been
disconnected from the circuit.
1.6.1.4
The electrical equipment on a machine must be inspected and tested at
regular intervals. Defects such as loose connections and damage cables
must be rectified immediately.
1.6.1.5
If the machine is disconnected from the power supply during operation before
the main switch is reset, the undervoltage release will take effect.
The machine can only be started when the main switch is turned back.
1.6.2 Dust
1.6.2.1
When cutting materials, an inhalable and respirable dust is produced.
Therefore, always work on the machine using a dust mask.
1.6.2.2
Comply with any existing national regulations when working in constricted
areas.
1.6.3 Noise parameter (see section 2.4)
1.7 Transport
1.7.1
When moving the machine, a four-piece suspension gear with sufficient load-
bearing capacity must be used.
1.7.2
Appoint a qualified instructor for the lifting operation!
1.7.3
Lift machines properly with lifting equipment only, in accordance with the
specifications of the operating manual (lashing points for load suspension
devices etc.)!
1.7.4
Only use a suitable transport vehicle with an adequate load capacity.
1.7.5
Secure the load properly. Use suitable lashing points (Item 3).
1.7.6
Observe the transport instructions (see section 4)! Disconnect the machine
from the energy supply even if you only wish to move it slightly! Reconnect
the machine to the mains supply properly before restarting it.
1.7.7
Proceed as described in the operating manual to restart the machine.

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2. Machine description
2.1 Component overview
Item 1
Feed lock
Item 2
Interior cover for protective hood
Item 3
Lifting eye
Item 4
Support wheel
Item 5
Support wheel holder
Item 6
Feed crank
Item 7
Receiver tube of the wheel holder
Item 8
Mains plug
Item 9
Main switch
Item 10
Anchoring slot
Item 11
Cradle
Item 12
Lubricating nipple
Item 13
Protective hood inside
Item 14
Screw (Mounting of the saw hood)
Item 15
Lube point
Item 16
Receiver tube for transport by fork-lift truck
Item 17
Clamp lever for angled stop
Item 18
Angled stop
Item 19
Saw blade cover lock
Item 20
Dust collecting basin
Item 21
Saw hood
Item 22
Cover for strainer
Item 23
Foldable protection
Item 24
Transport bracket of the support wheel
Item 25
Emergency Stop switch
Item 26
Connection of dust extraction system
Item 27
Socket 230 V (max. 2000 watts)
2.2 Safety equipment
Item 9
Main switch
Item 13
Saw hood inside
Item 21
Saw hood
Item 25
Emergency Stop switch

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2.3 Technical data
DTS 420 T
Voltage
400 V
Power
3 kW
Motor speed
1.410 1/min.
Shaft speed of the saw blade
320 1/min.
Power consumption
7 A
Type of current
(3 PH + N + PE)
Protection type
IP 55
Cutting depth
370 mm
Cutting length
650 mm
Table width
825 mm
Saw blade diameter
900 mm
Saw blade clamp
60 mm
Width
975mm
Length
1080 mm
Height
min 1995 mm / max 2320
Nominal weight
392 kg
Max. operating weight
456 kg
Max. dimensions of the workpieces to be cut
Length
Width
Height
1040 mm
550 mm
420 mm
2.4 Noise emission values
The measurements were carried out taking into account the standards EN
ISO 3744, EN ISO 11201 and EN 12418. A non-noise-reduced standard saw
blade type KS-4 ø 900 mm was used for this purpose.
No emissions
at the highest
speed
Aerated
concrete
Cutting depth
9.5 cm
Sand-lime stone
Cutting depth
9.5 cm
Vertically
perforated brick
Cutting depth
9.5 cm
Continuous sound
pressure level
at the workplace LpA
84 dB (A) 87 dB (A) 94 dB (A) 91 dB (A)
Sound power level LwA 99 dB (A) 100 dB (A) 107 dB (A) 106 dB (A)
2.5 Vibration on handle
The vibration total value is below the trigger value of 2.5 m/s2.

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3. Assembly and initial operation preparation
3.1 Installation tools in the tool holder
Open-ended spanner, size 13 (for changing the saw blade)
Open-ended spanner, size 46 (for changing the saw blade)
3.2 Installation of the masonry saw
The workplace should have sufficient lighting
Place the masonry saw onto a clean and horizontal surface
Level off unevenness of the underground using pads
Ensure the stability of the masonry saw
Attach the support wheel (Item 4) in the support wheel holder (Item 5)
3.3 Preparing a saw for work
Please check:
the safety equipment (see chapter 2.2)
the saw blade (see chapter 1.1.3)
Connect the power cable (400 V) to the mains plug (Item 8)
Connect the dust extraction to the dust extraction system (Item 26). Dust
extraction system (max. 2000 watts) can be connected to the socket
(Item 27).
Note!
Observe the conditional connections in Chapter 9. regarding electromagnetic
compatibility!
3.4 Check out the rotation direction of the saw blade
Danger!
Do not remove or open the protective hood or reach into the saw blade whilst
it is cutting.
Release the feed lock (Item 1)
Crank the saw blade to the visible position with the feed crank (Item 6)
Switch on the main switch (Item 9) and let the masonry saw run briefly
Check the direction of rotation of the saw blade
Note!
Direction of rotation from the operator side - counter-clockwise (direction
arrow on the saw blade cover)
3.5 Change of rotation direction
Power off the masonry saw via the main switch (Item 9)
Disconnect the power cable from the main switch (Item 8)
Invert the phases on the mains plug (Item 8)
Press the white disc inwards and switch it with a screwdriver

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3.6 Installation of the saw blade (or control of the installation)
Switch off the masonry saw and disconnect the mains plug (Item 8)
Crank the saw blade into the highest position via the feed crank (Item 6)
and engage the feed lock (Item 1)
Secure the interior protective hood (Item 13) via the saw blade cover
lock (Item 19)
Remove the screw (Item 14) and swivel the saw blade cover (Item 21)
downwards
Open the flange nut (left-handed thread)
Remove flange and saw blade
Thoroughly clean the mounting faces of the two flanges
Insert a new saw blade
Danger!
Observe the rotation arrow of the saw blade -
The saw blade rotates clockwise!
Mount the flange and tighten it with the flange nut
Swivel the saw blade (Item 21) up and insert the screw (Item 14)
Loosen the saw blade cover lock (Item 19) and the interior protective
hood (Item 13)

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4. Transport
4.1 The transport position includes:
Saw head in the lowest position
Engage the feed lock (Item 1)
inserted and clamped support extension (accessory)
Remove the feed crank (Item 6)
4.2 Transport possibilities
With forklift over the receiver tube (Item 16)
With forklift truck over the receiver tube (Item 16)
Move with a crane over the lifting eye (Item 3)
Push the masonry saw on the wheels
* Place the support wheel (Item 4) in the receiver tube (Item 7)
* Crank up the masonry saw with the support wheel (Item 4)

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5. Operation
5.1 Loading the bricks
Danger!
The following must be observed when loading the building blocks:
The saw blade is in the highest position
The feed lock (Item 1) is engaged
The saw blade does not rotate
3.6 Test run
The operational position of the operator is with the feed crank (Item 6).
5.2 Cutting with the masonry saw
Danger!
Observe the intended use, see chapter 1.2.1!
Note!
When cutting materials, an inhalable and respirable dust is produced.
Therefore, always work on the machine using a dust mask.
Place the building block on the machine table
Switch the machine on with the main switch (Item 9) and wait until the
motor has reached a stable speed
Lower the saw head over the feed crank (item 6) and completely cut the
block
* Reduce the feed rate when cutting
* Dose the feed rate depending on the required effort
Continue to lower the saw head over the feed crank (Item 6) to remove
remaining dust for the protective hood
Note!
If the saw blade loses its cutting capacity after a longer working period,
“resharpen” the blade with some cuts with Sand-lime stone or a similar
material.

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5.6 Angle cuttings
Danger!
Do not remove or open the protective hood or reach into the saw blade whilst
it is cutting. This work may only be carried out when the saw blade is at a
standstill and the motor has been switched off.
Mount the angled stop (Item 18) in the anchoring slot (Item 10) and turn
the clamping lever (Item 17) with the eccentric
Loosen the eyebolt on the angle stop (Item 18) and adjust the desired
angle, then tighten the eyebolt again
Place the building block and position it at the angled stop (Item 18)
Switch the machine on with the main switch (Item 9) and wait until the
motor has reached a stable speed
Lower the saw head over the feed crank (item 6) and completely cut the
block
* Reduce the feed rate when cutting
* Dose the feed rate depending on the required effort
Continue to lower the saw head over the feed crank (Item 6) to remove
remaining dust for the protective hood

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5.7 Align stones depending on the crack
Danger!
Do not remove or open the protective hood or reach into the saw blade whilst
it is cutting. This work may only be carried out when the saw blade is at a
standstill and the motor has been switched off.
Place the building block on the masonry saw
Turn the lever (Item 19) at right angles
Open the feed lock (Item 1)
Lower the saw blade over the feed crank (Item 6) to the building block
Close the feed lock (Item 1)
Align the building block
Crank the saw blade very high
Turn the lever (Item 19) in the lengthwise
Place the building block and position it at the angled stop (Item 18)
Switch the machine on with the main switch (Item 9) and wait until the
motor has reached a stable speed
Lower the saw head over the feed crank (item 6) and completely cut the
block
* Reduce the feed rate when cutting
* Dose the feed rate depending on the required effort
Continue to lower the saw head over the feed crank (Item 6) to remove
remaining dust for the protective hood

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5.8 Cutting with a 1000 saw blade
Note!
When sawing with a 1000 mm saw blade, an intermediate plate must first be
removed in the saw blade protective hood.
A View: Saw blade protective hood from below
Unscrew the two cross-head screws (Item 2) to remove the plate (Item 1).
Note!
The plate (Item 1) must be installed when sawing with all other saw blades.
6. Disassembly
Turn back the main switch (Item 9)
Disconnect the connecting cable from the main switch (Item 8)
Transport see chapter 4.
1
2