Norton clipper TT 251 User manual

TT 251
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:
Tile saw (Code)
TT251230V 70184602662
TT 251 230 V UK 70184602667
TT 251 115V 70184602663
is in conformity with the following Directives:
"MACHINES" 2006/42/CE
"LOW VOLTAGE" 2014/35/UE
"ÉLECTROMAGNÉTIC COMPATIBILITY" 2014/35/CE
"NOISE" 2000/14/CE
and European standard :
EN 12418 –Masonry and stone cutting-off machines –Safety
EN ISO 13857 –Safety of machines –Safety Distance
EN 60204-1 –Safety of machines –Electrical equipment
EN 61000-3-2 –electromagnetic compatibility
EN 61000-3-3 –electromagnetic compatibility
EN 55014 –electromagnetic compatibility
Valid for machines as of serial number: 1701XXXXX
Storage site for 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, 04.12.2017.
Olivier Plenert, executive officer.
Declaration of conformity

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TT 251 : OPERATING INSTRUCTIONS
TABLE OF CONTENTS
1. Basic Safety Instructions 6
1.1 Symbols 6
1.2 Machine plate 7
1.3 Safety instructions for particular operating phases 7
2. Machine description 8
2.1 Short description 8
2.2 Purpose of use 8
2.3 Layout 9
2.4 Technical Data 10
2.5 Statement regarding the vibration emission 11
2.6 Statement regarding noise emission 12
3. Assembly and commissioning 13
3.1 Tool assembly 13
3.2 Guide-a-cut assembly 13
3.3 Electrical connections 13
3.4 Starting the machine 14
3.5 Water cooling system 14
4. Transport and storing 14
4.1 Securing for transport 14
4.2 Long period of inactivity 14
5. Operating the machine 15
5.1 Site of work 15
5.2 Cutting methods 15
5.3 Bevel cut 15
5.4 General advice for the cutting 15
6. Maintenance and servicing 16
7. Faults: causes and cures 17
7.1 Fault-finding procedures 17
7.2 Trouble-shooting guide 17
7.3 Circuit diagram 18
7.4 Customer service 19

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1. Basic Safety Instructions
The TT251 is exclusively designed for the cutting of tiles 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
Pump on
Pump off

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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.
Site the machine on an even, firm and stable base!
Check for correct mounting of the blade regularly.
Immediately remove damaged or badly worn blades, as they endanger the operator whilst
rotating.
The material to be cut must be held securely in place on the table to allow no unexpected
movement during cutting operation.
Always cut with the blade guard in position.
Only fit NORTON CLIPPER diamond blades with continuous rim to the machine! The use of
other tools can damage the machine!
Read the blades’ specifications carefully to choose the correct tool for your application.
Attention is drawn to the use of BS2092 safety goggles in conformity with specified Processes
No.8 of the Protection of Eyes Regulation 1974.
Machine Model
Machine Code
Weight
Year of production
Machine type
Serial number
Power
Safety standard
Blade speed
Bore diameter
Max. blade diameter

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Electrical powered machine
Always turn off the machine and separate it from the main source of electricity before any work
on the machine is done.
Make all electrical connections securely to eliminate contact of live wires with spray water or
dampness
When the machine is used with water, it is IMPERATIVE that you earth the machine properly.
Let a qualified electrician check in case of doubt.
In case of emergency, you can stop the machine by pushing on the front cover of the switch.
In the event of the machine breaking down or stopping for no apparent reason, switch off the
main electricity supply. Only a qualified electrician is allowed to investigate the trouble and
remedy the fault.
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
The TT251 Tile saw is designed for durability and high performance for onsite wet and dry cutting
operations of a wide range of tiles.
As with all other CLIPPER products, the operator will immediately appreciate the attention given to
detail and quality of materials used in construction. The machine and its component parts are
assembled to high standards assuring long life and minimum maintenance.
2.2 Purpose of use
The machine is designed for wet and dry cutting of a large range of tiles. It is not designed for
cutting wood or metals.

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2.3 Layout
Frame (1)
The frame is made of a jig-welded reinforced steel construction to ensure perfect rigidity. It supports
the motor, the cutting table and the switch.
Cutting table (2)
Stainless steel top for an excellent resistance to corrosion with engraved measurements for precise
guide-a-cut alignment.
Electrical Motor and switch (3)
1kW motor. The ON-OFF switch also serves as emergency stop.
Blade guard (4)
Jig-welded steel construction with 250mm-diameter blade capacity, which offers maximum operator
protection and increased visibility of the work piece. The guard is assembled on the frame.
Guide-a-cut (5)
The guide-a-cut can be adjusted to the desired cutting width. It is locked using two screws.
Water tank (6)
The blade is cooled by turning inside the water tank (7) located under the working table. The water
also minimises the dust generation and improves quality of cut. It can be taken out of the machine
by unscrewing the two nuts (7). An opening (8) in the frame allows the tank to be refilled easily.
Bevel cut
You can make bevel cuts with the machine by loosening the two screws (9) and pivoting the table.

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2.4 Technical Data
Electric motor
1000W
Voltage
220V
110V
Protection rating
IP 54
Max. blade diameter
250 mm
Bore
25,4 mm
Rotation speed of the blade
2990 Tr. min-1
Flange diameter
70 mm
Cutting depth mm
55 mm
Sound pressure level
71 dB (A) (ISO EN 11201)
Sound energy level
79 dB (A) (ISO EN 3744)
Table dimension (LxW)
560x500 mm
Machine dimensions (LxWxH)
600x550x390 mm
Weights
Machine cpl.
26 kg
Ready for use (with water)
28 kg

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2.5 Statement regarding the vibration emission
Declared value of vibration emission following EN 12096.
Machine
Model / code
Measured value of vibration
emission at m/s2
Uncertainty K
m/s2
Tool used
Model / code
TT 251
<2.5
0.5
Clipper Classic Ceram
The vibration value is lower and does not exceed 2.5 m/s².
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
Model / 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)
TT 251
71 dB(A)
2.5 dB(A)
79 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 and commissioning
The machine is delivered fully equipped. It is ready for operation. Before using the machine for the
first time, please read the following instructions.
3.1 Tool assembly
Only NORTON CLIPPER continuous rim blades with a maximum diameter of 250 mm can be used
with the TT251.
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 two screws (1) on the side of the machine and remove the water tank.
Loosen the hexagonal nut (3) on the blade shaft with the 19mm wrench (Caution: left threaded),
which holds the removable outer flange.
Remove the outer flange.
Clean the flanges and blade shaft and inspect for wear.
Mount the blade on shaft ensuring that direction of rotation is correct (check with the arrow on
the blade guard). Wrong direction of rotation blunts the blade quickly.
Replace outer blade flange.
Tighten hexagonal nut.
Reassemble the water tank in the frame, and retighten the two screws (1).
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.
3.2 Guide-a-cut assembly
Put the guide-a-cut on the table.
Screw the two locking screws.
3.3 Electrical 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.
1
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3.4 Starting the machine
Press the green button to start the machine. To start again the machine press on the red button.
3.5 Water cooling system
Fill the water pan with clean water to the small hole drilled into the plastic water tray.
Ensure that water is delivered adequately to both sides of the blade, as insufficient water supply
may result in premature failure of the diamond blade.
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.
4. Transport and storing
4.1 Securing for transport
Before transporting the machine, always remove the blade and empty the water pan.
4.2 Long 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
The storage site must be clean, dry and at a constant temperature.

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5. Operating the machine
5.1 Site of work
5.1.1 Siting 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 in front of the machine and 1,5 m around it for usage and maintenance of the TT251.
5.2 Cutting methods
To use the machine correctly, you must face it with the two hands on the tile to be cut, pushing the
tile against the blade. Always keep your hands away from the moving blade.
5.3 Bevel cut
Loosen the two screws (1) on each side of the machine.
Pivot the table until you reach the desired angle.
Fix the table with the screws (1). Adjust the distance to blade in regard to the tile to be cut.
5.4 General advice for the cutting
Tiles can be cut with the machine. 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 (dry or wet cut) to be carried out and the required efficiency.
Make sure the water pan contains enough water.
Set the guide-a-cut to the desired width of cut, using the two engraved measurements to align it
correctly.
Do not force on the motor. This machine is designed for a continuous use.
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6. Maintenance and servicing
To ensure a long-term quality from the cutting with the TT251, 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 pan
Clean
Engine housing
Clean
Reachable nuts and screws
Tighten up
Maintenance of the machine
Always perform the maintenance of the machine with the machine isolated from the electrical
supply.
Lubrication
The TT251 uses life-lubricated bearings. Therefore, you don’t need to lubricate the machine at all.
Cleaning of the machine
Your machine will last longer if you clean it thoroughly after each day of work, especially water pan,
motor and blade flange.

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7. Faults: causes and cures
7.1 Fault-finding procedures
Should any fault occur during the use of the machine, turn it off, and isolate it from the electrical
supply. Any works dealing with the electrical system or supply of the machine can only be carried
out by a qualified electrician.
7.2 Trouble-shooting guide
Trouble
Possible source
Resolution
Motor is not running
No electricity
Check the electrical supply
(fuse for example)
Connection cable section too
small
Change connection cable
Defective connection cable
Change connection cable
Defective switch
CAUTION : can only be solved
by qualified electrician
Defective motor
Change motor or contact motor
manufacturer
No water on the blade
Not enough water in the pan
Refill the water pan

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7.3 Circuit diagram

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7.4 Customer service
When ordering spare parts, please mention:
The serial number
The code of the part.
The exact denomination.
The number of parts required.
The delivery address.
Please indicate clearly the means of transportation required such as "express" or "by air".
Without specific instructions, we will forward the parts through the means which seem
appropriate to us --- but which is not always the quickest way.
Clear instructions will avoid problems and faulty deliveries.
If not sure, please send us the defective part.
In the case of a warranty claim, the part must always be returned for evaluation.
Spare parts for the motor can be ordered with the manufacturer of the motor or with their dealer,
which is often quicker and cheaper.
This machine has been manufactured by Saint-Gobain Abrasives S.A.
190, Bd J.F.Kennedy
L- 4930 BASCHARAGE
Grand-duché de Luxembourg.
Tel. : [phone]
Fax : [phone]
http://www.construction.norton.eu
e-mail: [e-mail]

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Guarantee can be claimed and technical support obtained from your local distributor where
machines, spare parts and consumables can be ordered as well