Norton Clipper CST 120 UNO User manual

CST 120 UNO
OPERATING INSTRUCTIONS
Translation of the original instructions

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The undersigned manufacturer:
SAINT - GOBAIN ABRASIVES S.A.
190, BD. J. F. KENNEDY
L-4930 BASCHARAGE
Declares that this product:
Masonry saw: CST 120 Uno 230V - 350MM -2.2 KW - 2800RPM 70184601846
is in conformity with the following directives:
"MACHINES" 2006/42/CE
"LOW VOLTAGE" 2006/95/CE
"ELECTROMAGNETIC COMPATIBILITY" 2004/108/CE
"NOISE" 2000/14/CE
and the European standard
EN 12418 –Masonry and stone cutting-off machines - Safety
Valid for machines with serial number from: 160175030
Storage location of the technical documents:
Saint-Gobain Abrasives 190, Bd. J. F. Kennedy 4930 BASCHARAGE, LUXEMBOURG
This declaration of conformity loses its validity when the product is converted or modified without
agreement.
Bascharage, Luxembourg, 01/01/2016. Olivier Plenert, executive officer.
Déclaration of conformity

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CST 120 Uno: OPERATING INSTRUCTIONS
TABLE OF CONTENTS
1BASIC SAFETY INSTRUCTIONS...............................................................................................6
1.1 Symbols..................................................................................................................................6
1.2 Machine plate..........................................................................................................................7
1.3 Safety instructions for particular operating phases ............................................................7
2MACHINE DESCRIPTION ..........................................................................................................8
2.1 Short description....................................................................................................................8
2.2 Purpose of use .......................................................................................................................8
2.3 Layout .....................................................................................................................................9
2.4 Technical data.........................................................................................................................12
2.5 Statement regarding the vibration emission ......................................................................13
2.6 Statement regarding noise emission..................................................................................14
3ASSEMBLY ANDCOMMISSIONING...........................................................................................15
3.1 Tool assembly ......................................................................................................................15
3.2 Feet mounting.......................................................................................................................15
3.3 Electrical connections..........................................................................................................15
3.4 Starting the machine............................................................................................................15
3.5 Water cooling system ..........................................................................................................16
4TRANSPORT AND STOCKING................................................................................................17
4.1 Securing for transport..........................................................................................................17
4.2 Transport procedure............................................................................................................17
4.3 Long period of inactivity......................................................................................................17
5OPERATING THE MACHINE ...................................................................................................18
5.1 Site of work...........................................................................................................................18
5.2 Cutting material....................................................................................................................18
5.3 General advice for the cutting .............................................................................................19
6MAINTENANCE AND SERVICING...........................................................................................20
7FAULTS: CAUSES AND CURES .............................................................................................21
7.1 Fault-finding procedures........................................................................................................21
7.2 Trouble-shooting guide........................................................................................................21
7.3 Circuit diagram........................................................................................................................22

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1 BASIC SAFETY INSTRUCTIONS
The CST 120 UNO is exclusively designed for the cutting of abrasive materials with NORTON
diamond blades, mainly on construction sites.
Uses other than the manufacturer's instructions shall be considered as contravening the regulations.
The manufacturer shall not be held responsible for any resulting damage. Any risk shall be borne
entirely by the user. Observing the operating instructions and compliance with inspection and
servicing requirements shall also be considered as included under use in accordance with the
regulations.
1.1 Symbols
Important warnings and pieces of advice are indicated on the machine using symbols. The following
symbols are used on the machine:
Read operator's instructions
Ear protection must be worn
Hand protection must be worn
Eye protection shall be worn
Rotation direction of the blade
Danger: risk of cut

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1.2 Machine plate
Important data can be found on the following plate located on the machine:
1.3 Safety instructions for particular operating phases
Before commencing work
Before commencing work, make yourself familiar with the working environment at the place of
use. The working environment includes: obstacles in the area of work and manoeuvre, the
firmness of the floor, necessary protection at the site relating to public thoroughfares and the
availability of help in the event of accidents.
Install the machine balanced on a flat and stable ground.
Check for correct mounting of the blade regularly.
Immediately remove damaged or badly worn blades, as they endanger the operator whilst
rotating.
Only fit NORTON diamond blades to the machine! The use of other tools can damage the
machine!
Firmly press the part to be cut against the machine abutting to prevent it from moving during
cutting operation.
Use the machine only with closed and fixed blade guard.
Please use dust mask during dry cutting to minimize the dust effects.
Check carefully the documentation about diamond blades to find the one who best meet the
requirement with your application.
Machine with electric motor
Turn off the power of the CST 120 UNO and disconnect it from the network before any work on
the machine itself.
Avoid contact of electrical connections with water projections or moisture.
The CST 120 UNO must be absolutely correctly grounded. In case of doubt, have the electrical
connections checked by a qualified electrician.
Turn off the CST 120 UNO main power supply if it stops with no apparent reason. Only a
qualified electrician is authorized to investigate and resolve the issue.
To shut down the machine in case of danger, push the red button on the switch.
Machine model
Machine code
Year of production
Max. blade diameter
Bore diameter
Machine type
Serial number
Blade speed
Power
Safety standard
Weight

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2 MACHINE DESCRIPTION
Any modification, which could lead to a change in the original characteristics of the machine, may
be done only by Saint-Gobain Abrasives who shall confirm that the machine is still in conformity with
the safety regulations.
2.1 Short description
CST 120 UNO type Masonry saw is a machine with fixed table and mobile head. Robust and
powerful, it allows precise cuts in a wide variety of building materials. It can be used on construction
and also on industrial sites. Combined with NORTON diamond blades, it offers a high degree of
performance and cutting quality for large tiles, window sills or stair steps.
2.2 Purpose of use
The machine is designed for wet cutting of a large range of building and refractory materials, or tiles.
It is not designed for cutting wood or metals.

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2.3 Layout
Frame (1)
Jig-welded steel construction, the frame is robust and resistant. The side posts of the machine
ensure that the rail is parallel to the table. The rails (4) assembly can also be tilted to 45º to make
bevel cuts. The rail (2) guides the cutting head over the table.
Blade guard (3)
Jig-welded steel construction with 350mm-diameter blade capacity, which offers maximum operator
protection and increased visibility of the work piece.
Incorporated in the blade guard is an outer metal cover, which can be easily hinged open. This
2
5
4
3
1

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allows easy access to shaft for inspection and blade replacement when motor is switched off, while
fully protecting the blade when in operation. An arrow on the blade guard indicates the direction of
the blade rotation.
Emergency stop button (5)
The red button stops the motor. It is also an emergency stop button.

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2.4 Technical data
Code
70184601846
Description
CST120 Uno
230V
Power
2,2 kW
Voltage
230V 1~
Motor protection
IP 54
Sound pressure level
73,5 dB (A) (selon ISO EN 11201)
Sound energy level
88,5 dB (A) (selon ISO EN 3744)
Cutting length
1200 mm
Max. cutting depth
105 mm
Blade speed (RPM)
2800 min-1
Blade diameter
350mm
Blade bore
25.4 mm
Flanges diameter
110 mm
Length
1600 mm
Width
660 mm
Height (with feet)
1350 mm
Height (without feet)
780 mm
Water pan capacity
71 L
Weight (total)
98 kg

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2.5Statement regarding the vibration emission
Declared value of vibration emission following EN 12096.
Machines
Modèle / code
Measured value of
vibration emission at
m/s2
Uncertainty K
m/s2
Tool used
Model / code
CST 120 UNO / 70184601846
<2.5
0.5
Duo Granit
The vibration value is lower and does not exceed 2.5 m / s.
Values determined using the procedure described in the standard EN 12418.
The measurements are made with new machines. Actual values may vary with site conditions, in
terms of:
Materials worked
Wear Machine
Lack of maintenance
Inappropriate tool for application
Tool in poor condition
Unskilled operator
Etc…
The exposure time to vibration is based on the performance of work (related to the adequacy
Machine / Tool / worked material / operator)
When evaluating risks due to hand-arm vibration, you need to take into account effective usage at
rated power of machine during a full day of work; quite often you will realise that effective utilisation
time represents around 50% of overall duration of work. You have to consider, of course, breaks,
water feeding, preparation of work, time to move the machine, disk mounting…

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2.6 Statement regarding noise emission
Declared value of noise emission following EN ISO 11201 and NF EN ISO 3744.
Machine
Modèle / code
Sound
Pressure
level LPeq
EN ISO
11201
Uncertainty K
(Sound
Pressure level
LPeq
EN ISO 11201)
Sound power level
LWeq
NF EN ISO 3744
Uncertainty K
(Sound power level
LWeq
NF EN ISO 3744)
CST 120 Uno / 70184601846
73.5 dB(A)
2.5 dB(A)
88.5 dB(A)
4 dB(A)
Values determined using the procedure described in the standard EN 12418.
The measurements are made with new machines. Actual values may vary with site conditions, in
terms of:
Wear Machine
Lack of maintenance
Inappropriate tool for application
Tool in poor condition
Unskilled operator
Etc…
Measured values relate to an operator in normal use, as described in the manual position.

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3 ASSEMBLY ANDCOMMISSIONING
The machine is delivered fully equipped. It is ready for operation when you mount the diamond
blade, the handles and the conveyor cart and after you connect to the appropriate power supply.
3.1Tool assembly
Only NORTON blades should be used.
All tools used must be selected with regard to their maximum permitted cutting speed for the
machine’s maximum permitted rotation speed. Before mounting a new blade into the machine,
switch off the machine and isolate it from the main source of electricity.
To mount a new blade, follow these steps:
Loosen the screw in front of the blade guard and disconnect the water hose on its the left side
and open it.
Loosen the hexagonal nut on the blade shaft (attention: left threaded), which holds the
removable outer flange, with the supplied wrench.
Remove the outer flange.
Clean the flanges and blade shaft and inspect for wear.
Mount the blade on arbour ensuring that direction of rotation is correct. Wrong direction of
rotation blunts the blade quickly.
Replace outer blade flange.
Tighten the hexagonal (attention: left threaded), nut with the supplied wrench.
Close the blade guard, retighten the screw on the front of the blade guard and reconnect the
water hose.
ATTENTION: The blade bore must correspond exactly to the diameter of the blade shaft. Cracked
or damaged bore is dangerous for the operator and for the machine.
3.2Feet mounting
Use the provided screws to mount the feet on the frame.
3.3Electrical connections
Check that,
The voltage/phase supply corresponds to the information indicated on the motor plate.
Available power supply must have ground connection in conformity with safety regulations.
The connecting cables should have at least a 2. 5mm2-section per phase.
3.4Starting the machine
Press the green button to start the machine. Press the red one to stop it. The red button is also an
emergency stop button.

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3.5Water cooling system
Fill the water pan with clean water to approximately 1cm from top (ensure that bottom of pump is
fully immersed in water).
Open water-tap at blade guard (note that handle on water-tap should be in line with water-flow).
Ensure that water is flowing freely in the circuit and is delivered adequately to both sides of the
blade, as insufficient water supply may result in premature failure of the diamond blade.
The water pump must never run without water. Always make sure that there is enough water in
the pan and refill if necessary.
In case of frost, empty the water cooling system from its water.

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4 TRANSPORT AND STOCKING
4.1Securing for transport
Before transporting or lifting the machine, always remove the blade and empty the water pan. Also
lock the cutting head on the rail. To do so, move the head in the middle of the rail and tighten the
knob screw until the cutting head is secured on the rail.
4.2Transport procedure
Conform yourself to work regulations, in order to transport the machine safely. The machine is fitted
with 4 foldable handles. Fold these out of the machine to transport it easily. The machine is
designed to be raised using a crane with hooks of lifting on the corners. The machine can also be
transported by a forklift truck while passing the forks under the water vat.
4.3Long period of inactivity
If the machine is not going to be used for a long period, please take the following measures:
Completely clean the machine
Empty the water system
Take the water pump out of the slurry and clean it thoroughly.
The storage site must be clean, dry and at a constant temperature.

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5 OPERATING THE MACHINE
In this part, you will find some safety tips to use the machine.
5.1Site of work
5.1.1 Sitting the machine
Remove from the site anything, which might hinder the working procedure!
Make sure the site is sufficiently well lit!
Observe manufacturer's conditions for connecting to power supplies!
Place electric cables in such a way that damage by the device is excluded!
Make sure you have a continual adequate view of the working area so you can intervene in the
working process at any time!
Keep other staff out of the area, so you can work securely.
5.1.2 Space required for operation and maintenance
Leave 2 m around the machine for usage and maintenance of the CST 120 UNO.
5.2Cutting material
To use the CST 120 UNO correctly, you must face it with one hand on one of the 3 handles of the
cutting head, and the other ready to shut the machine down in case of emergency. Always keep
your hands away from the moving blade.
In full depth or fixed cutting, the cutting head is locked in a fixed position and the material is pushed
into it as shown.
Lower the cutting head thanks to the hand wheel to the desired cutting depth. In “through
cutting”, lower cutting head until blade periphery reaches max. 3mm under the surface of the
conveyor cart (for maximal cutting depth).
Put the material on the table and maintain it firmly against the butting. (or the cutting guide when
appropriate).
Pull the cutting head slowly and without undue pressure towards the material.
You can tilt the head for bevel cuts. For this purpose, untighten the two black buttons on each
side of the frame, and tilt the head to the desired position (from 0 to 45º). Tighten then the two
buttons.
To cut thicker materials, you can cut a first side, and then reverse it to cut the total depth. You
can cut materials until 220mm depth. (370mm for the 500mm blade versions).

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5.3General advice for the cutting
The CST 120 UNO is designed to cut materials until 80kg and with maximal dimensions
of 1200x660x120mm.
The width of the table and of the material can be increased by adding a table extension.
Before commencing work make sure tools are firmly seated!
Select the right tools as recommended by the manufacturer depending on the material to be
worked, the working procedure (wet cut) to be carried out and the required efficiency.
Apply cooling water continuously whilst cutting and in good time! Make sure the water pan
contains enough water.
When dry cutting, ensure sufficient dust extraction and wear a dusk protection mask!
If the thermal protection trips, allow the thermal protection to cool down. Wait a few minutes to
allow the motor to cool down before restarting the machine.

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6 MAINTENANCE AND SERVICING
To ensure a long-term quality from the cutting with the CST 120 UNO, please follow the
maintenance plan below:
Begin of the day
During the changing of tool
End of the day or more often if required
Every week
After a fault
After a damage
Whole machine
Visual control (general aspect,
watertightness)
Clean
Flange and blade fixing devices
Clean
Motor cooling fans
Clean
Water pump
Clean
Water pan
Clean
Cutting table
Clean
Water hoses and nozzles
Clean
Water pump filter
Clean
Rail
Clean
Motor housing
Clean
Reachable nuts and screws
Tighten up
Maintenance of the motor
Always perform the maintenance of the motor with the machine isolated from the electrical supply.
Cleaning of the machine
Your machine will last longer if you clean it thoroughly after each day of work, especially water
pump, water pan, cutting head rail, motor and blade flange. To easily clean the water pan, open the
table. Always clean the machine when any cutting dust and debris is still fresh; never allow the
deposits to solidify.
Lubrication
The CST 120 UNO uses life-lubricated bearings. Therefore, you don’t need to lubricate the machine
at all.