Norton CM 351 Operating Instructions Manual

CM 351

OPERATING INTRUCTIONS

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Declaration of conformity

The undersigned manufacturer:

SAINT - GOBAIN ABRASIVES S.A.

190, BD. J. F. KENNEDY

L-4930 BASCHARAGE

Declares that the following new products here below:
Masonry Saws (Code)

• CM 351 2.2KW-1-230V (70184630312)

• CM 351 2.0KW-1-115V (70184630321)

Is in conformity with the following Directives:

• "MACHINES" 2006/42/CE

• "LOW VOLTAGE" 2006/95/CE

• "ELECTROMAGNETIC COMPATIBILITY" 2006/95/CE

And the European standard:

• EN 12418 – Masonry and stone cutting-off machines – Safety

Pierre Mersch

Business Manager Machines Europe

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CM 351

OPERATING INSTRUCTIONS

TABLE OF CONTENTS

1 BASIC SAFETY INSTRUCTIONS 6

1.1 Symbols 6

1.2 Machine plate 6

1.3 Safety instructions for particular operating phases 6

2 MACHINES DESCRIPTION 7

2.1 Short description 7

2.2 Purpose of use 7

2.3 Layout 7

2.4 Technical data 8

2.5 Vibration emission declaration 8

3 ASSEMBLY AND COMMISSIONING 9

3.1 Feet assembly 9

3.2 Tool assembly 9

3.3 Electrical connections 9

3.4 Water cooling system 9

3.5 Starting the machine 9

4 TRANSPORT AND STORING 9

4.1 Securing for transport 9

4.2 Transport procedure 9

4.3 Storing of the machine 10

5 OPERATING THE MACHINE 10

5.1 Installation 10

5.2 Cutting methods 10

6 MAINTENANCE AND SERVICE 12

7 BREAKDOWN – CAUSES AND CURES 12

7.1 Breakdown-finding procedures 12

7.2 Trouble-shooting guide 12

7.3 Circuit diagram 13

7.4 Customer service 14

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1 BASIC SAFETY INSTRUCTIONS

The CM 41 is exclusively designed for the cutting of construction products, 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

Eye protection must be worn

1.2 Machine plate

Important data can be found on the following plate located on the machine:

Machine Model Machine Code

Machine Type

Weight

Serial Number Safety standard

Danger: risk of cut

Year of production

Power Blade Speed

Hand protection must be worn

Max. blade diameter

Rotation direction of the blade

Bore diameter

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.

• 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!

• Please wear safety goggles and a dust mask when cutting dry to minimize the effects of dust.

• For security reasons, never leave the machine unattended, untied or unlocked.

While the motor running

• Do not move the machine whilst the blade is running idle.

• Always cut with the blade guard in position.

• Apply cooling water continuously whilst cutting and in good time!

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2 MACHINES DESCRIPTION

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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 CM 351 Masonry saw is designed for durability and high performance for onsite wet and dry cutting operations of a wide range of
masonry, refractory and natural stone products. It can be used on construction or industrial site. Combined with NORTON diamond
blades, it offers high performance and quality cuts 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 CM 351 is designed for wet and dry cutting of a large range of building and refractory materials, or tiles. It is not designed for
cutting wood or metals.

2.3 Layout

Frame and feet (1)

The frame is made of a jig-welded reinforced steel construction to ensure perfect rigidity. The machine is mounted on four removable
legs 4 locked with screws and equipped of wheels for transportation.

Cutting head (2)

The pivot is jig-machined with precision. A spring system brings the blade automatically in the up position. The cutting head can be tilted
to 45° for bevels cuts. Straight-through cutting can be made by means of a locking device.

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 removed to allow easy access to shaft for inspection and
blade replacement when motor is switched off, while fully protecting the blade when in operation. The rotation of the disc is indicated by
an arrow on the sidewall of the blade guard.

Electric motor and switch (4)

Electric motor 2.2kW 230V or 2.0kW 115V with an overload protection. Low voltage trigger (NVR) built in the switch prevents the motor
to restart for example after a power cut. Thermal overload tripping can occur for two reasons:

• tripping under light load if connection is incorrect

• tripping under heavy load if motor has been overloaded.

The ON-OFF switch also serves as emergency stop.

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Machine

Uncertainty

K

Tool used

Conveyor cart (5)

Steel welded construction with a stop material. The guide system of the conveyor cart permits precise cuts. The guide-a-cut and the
large surface of the conveyor cart provide precise positioning of the material.

Water cooling system (6)

The coolant system comprises:

• A powerful, submersible electric water pump.

• Plastic suction pipe delivering the water from the water pan to the cutting head.

• A water tray placed on two adjustable supports.

• A water-tap, fitted to the blade guard, permitting controlled water flow.

• Two water nozzles located on the blade guard ensure adequate flow of water to both sides of the cutting blade.

• A water splash guard, fixed to head axle restricts water spray and minimises water loss.

Attention: The water pump must never run without water.

2.4 Technical data

Machines CM 351 2.2KW-1-230V CM 351 2.0KW-1-115V

Motor

2,2 kW 230V 2800tr. min

With thermal overload protection

Electric motor protection IP54

Max. blade diameter 350 mm

Bore 25,4 mm

Rotation speed of the blade 2800 min-1 2700 min-1

Max. cutting depth 110 mm (without reversing the material)

Flange diameter 90 mm

Sound pressure level 73 dB (A) (ISO EN 11201)

Sound energy level 87 dB (A) (ISO EN 3744)

Max. cutting length 700mm

Conveyor cart dimensions (L x l) 600 x 600 mm

Machines dimensions with feet (L x l x H) 1190x830x1325 mm

Machines dimensions without feet (L x l x H) 1190x745x655 mm

Weight (without water and blade) 69 kg
Weight ready for use (with water and blade) 99 kg

2,0 kW 115V 2700tr. min

With thermal overload protection

2.5 Vibration emission declaration

Declared vibration emission value in accordance with EN 12096:

Model / code

CM 351

70184630312

Measured vibration emission a m/s2

2.2 0.3

m/s2

Model / code

DYNAMIC FMD DUO

70184612283

Values determined according to procedure described in annex F of the standard EN 12418.

Note: Measurements are made with new machines. Real values in the field could vary the simple one with the double according to
operating conditions, depending on:

• Material

• Cutting depth

• Machine wear

• Lack of maintenance

• Tool not adapted to application

• Tool in bad shape

• Non-specialised operator

• Etc

Vibrations exposure time depends on cutting performance too (adaptation machine / tool / material / operator).
When evaluating risks due to hand-arm vibration, it must also be taken into account effective usage at rated power of machine during a
full working day; quite often the effective utilisation time represents around 50% of the total working time, taking into account all the
stops (breaks, water and fuel feeding, preparation of work, moving the machine, tool mounting)

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3 ASSEMBLY AND COMMISSIONING

The machine is delivered fully equipped and ready to use. Before using the machine the first time, please follow the following
instructions.

3.1 Feet assembly

The machine is delivered with the feet dismounted.

• Mount the feet and tighten them with the locking screws.

3.2 Tool assembly

Only NORTON blades with a maximum diameter of 350mm can be used. All tools used must be selected with regard to their maximum
permitted cutting speed for the machine’s maximum permitted rotation speed.

• Switch off the machine and unplug it from the electrical supply before to mount or change the blade.

• Loosen the screws of the blade guard, disconnect the water hose on the left side and open the removable part of the blade

guard.

• Loosen the hexagonal nut (left threaded) of the motor blade shaft which holds the removable outer flange, and remove the nut
and the removable flange.

• Make sure the flanges and the blade shaft are cleaned and inspect for wear.

• Mount the blade on arbour ensuring that direction of rotation is correct with the arrow on the blade guard.

• Replace the removable flange

• Tighten the hexagonal nut with the spanner supplied for this purpose.

• Close the blade guard; reconnect the water hose and tighten the screws of the blade guard.

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.

3.3 Electrical connections

Check that:

• The voltage/phase supply corresponds to the information indicated on the machine.

• 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.

3.4 Water cooling system

• Fill the water tray with clean water (to approximately 3cm from top) to ensure that bottom of the pump is fully immersed in its
decanting basket).

• The blade must be well cooled on both sides. You can adjust the water flow by the means of the water tap. Insufficient water
supply may result in premature failure of the diamond blade. Make sure the water hose and nozzles are not clogged.

• The water pump must never run without water. Always make sure that there is enough water in the water tray above the
aspiration of the water pump.

• In case of frost, empty the water cooling system from its water.

3.5 Starting the machine

To start the machine:

• Open the cover on the front side of the switch and press the green button.

To stop the machine:

• Press the red button or directly the emergency stop on the cover of the switch.

The switch activates or deactivates both motor and water pump.

4 TRANSPORT AND STORING

4.1 Securing for transport

Before transporting the machine, please follow the following instructions:

• Always dismount the blade.

• Empty the water tray and remove it.

• Tighten the screws of the two water tray supports.

• Remove also the conveyor cart to prevent any danger.

• Loosen the screws of the feet and take them off.

The Blade, the water tray, the conveyor cart and the feet must be always transported separately.

4.2 Transport procedure

There are two ways to move the machine: By one person with the use of the transport wheels, or by two persons.
While transporting the machine in a van our truck, always block properly the feet, the water tray and the conveyor cart.

No part of the machine is designed for transport by crane.

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4.3 Storing of the machine

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 cooling 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.

5 OPERATING THE MACHINE

Please find in this chapter advices to use the machine safely and correctly.

5.1 Installation

5.1.1 Information concerning the working site

• 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 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 safely.

• Set the machine on the flat and stable ground.

5.1.2 Space required for operation and maintenance

In order to use and maintain the machine safely and correctly, leave 2 m in front and 1, 5 m around of the machine.

5.2 Cutting methods

To use the machine correctly, you must face it with one hand on the handle of the cutting head, and the other on the conveyor cart.
Always keep your hands away from the moving blade.
To start the machine, open the switch cover and press the green button.
To stop either use the red button or press directly on the switch front cover.

5.2.1 Full depth or fixed cutting

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 to the desired cutting depth (in “through cutting”, lower cutting head until blade periphery reaches max.
3mm under the surface of the conveyor cart) by means of the handle on the blade guard.

• Fix the position by tightening the locking handle located on the side of the cutting head and set the depth stop screw correctly.

• Place the material on the conveyor cart and hold it firmly against the stop (and where appropriate against the guide-a-cut).

• Start the machine

• Push the conveyor cart slowly and without undue pressure towards the rotating blade and cut the material as shown on the

picture.

Note: While recommended, it is not absolutely necessary to lock the cutting head into a given depth position when jam cutting. The
desired cutting depth can be maintained by holding firmly the depth feed handle on the blade guard. If the full depth of cut requires
excessive pressure (on very dense material e.g.) make 2 or 3 shallow cuts.

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5.2.2 Multiple step cutting

Multiple step cutting consists of moving the conveyor cart with the material to be cut back and forward under the rotating blade as
shown.

• Place the material on the conveyor cart and hold it firmly against the stop (and where appropriate against the guide-a-cut)
keeping the hands well away from the blade.

• Start the machine.

• Move conveyor cart forward near the blade and pull down the cutting head until blade is lowered to a point where it will lightly

contact the surface of the material.

• Keep a constant pressure on the cutting head handle.

• Pass the material beneath with rapid full length strokes, taking a shallow cut (approximately 3 mm deep as shown on the picture)

on the forward. On the backward stroke, lift the blade just clear over the cutting line.

5.2.3 45° bevel cuts

Nut

With the CM 351 it is possible to make fixed or multiple step bevel cuts.
To tilt the cutting head to 45°, please follow the following instructions:

• Clear the conveyor cart in the front of the machine to give space to the pivot.

• Loosen slightly (1/8 turn is sufficient) the nut that supports the head.

• Rotate the head until it stops 45°.

• Tighten strongly back the nut that supports the head.

• Check by lowering the head down as the blade reaches correctly 3mm under the surface of the conveyor cart in the middle of

the groove for cutting 45°.

Note: to reposition the head in the normal position, the procedure is the same by rotating the head in the opposite direction to the other
stop. Make sure the nut that supports the head is strongly tighten. The stops are set at the factory; no adjustment shall be made
normally.

5.2.4 Important advices for the cutting

• The CM 351 is designed to cut material weight under 20kg and having dimensions smaller than 600x600x110mm.

• Before commencing work, check the fixing and stability of the tool.

• 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.

• Apply cooling water continuously whilst cutting and in good time! Make sure the water tray contains enough water.

• When dry cutting, ensure sufficient dust extraction and wear a dust protection mask.

• When cutting work is finished, close the water-tap so you can remove the cut pieces from the conveyor cart without getting wet.

• In case the thermal protection trips, wait until the motor has cooled down before starting the machine again.

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6 MAINTENANCE AND SERVICE

Trouble

Possible s

ource

Resolution

To ensure a long-term quality from the cutting and a safe functioning of the machine without any problem, please follow the
maintenance plan below:

Visual control

Whole machine

Flange and blade fixing devices Clean

Motor cooling fans
Water pump

Conveyor cart Clean
Water tray Clean
Water hoses and nozzles Clean
Water pump filter Clean

Conveyor cart guiding bars
Motor housing
Reachable nuts and screws

Maintenance of the machine

Always perform the maintenance of the machine with the machine isolated from the electrical supply.

Lubrication
The CLIPPER machine use 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 pump, water pan (which can be removed
for easy cleaning), motor and blade flange.

general aspect, water tightness
Clean

Clean

Clean

Clean

Clean

Tighten up

Begin of the work

During changing the tool

After a breakdown

Every week

After a damage

7 BREAKDOWN – CAUSES AND CURES

7.1 Breakdown-finding procedures

Should any breakdown 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

No electricity Check the electrical supply (fuse for example)
Connection cable section too small Change connection cable

Motor is not running

Motor stops during the cutting, but can
be restarted after a short period
(overload protection)

No water on the blade

Defective switch

Defective motor Change motor or contact motor manufacturer

Defective connection cable Change connection cable

Cutting advance too quick Cut slowly

Blade is blunt or glazed Sharpen the blade in calcareous stone

Defective blade Change blade
Wrong blade specification for the
application
Not enough water in the pan Refill the water tray
Water pump is switched off Switch the water pump on
Water tap is closed Open the water tap
Water supply system is blocked Clean water supply system

Water pump is not working

CAUTION : can only be solved by qualified
electrician

Change blade

Prime the pump
Reactivate switch
CAUTION : if switch trips again, problem can
only be solved by a qualified electrician

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7.3 Circuit diagram

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7.4 Customer service

Benelux and Franc

e

Germany

United Kingdom

Spain

Italia

Austria

Hungary

Czech Republic

Poland

When ordering spare parts, please mention:

• The serial number (7 digits)

• 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
Email : [e-mail]

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

Saint-Gobain Abrasives S.A.
Free telephone numbers:
Belgium : 0 800 18951
France : 0 800 90 69 03
Holland : 0 8000 22 02 70
E-mail : [e-mail]

Saint-Gobain Diamond Products GmbH
Birkenweg 45-49,
D-50389 WESSELING
Tel : [phone]
Fax : [phone]
E-mail : [e-mail]

Saint-Gobain Abrasives Ltd.
Doxey Road
Stafford
ST16 1EA
Tel : [phone]
Fax : [phone]
E-mail : [e-mail]

Saint-Gobain Abrasivos S.A.
C/. Verneda del Congost s/n
E-08160 MONTMELó (Barcelona)
Tel: [phone]
Fax: [phone]
E-mail : Comercial.sga-apa@saint-

gobain.com

Saint-Gobain Abrasives KFT.
Banyaleg Utca 60B
H-1225 BUDAPEST
Tel: ++36 1 371 2250
Fax: ++36 1 371 2255
E-mail : [e-mail]

Saint-Gobain Abrasivi S.p.A.
Via per Cesano Boscone, 4
I-20094 CORSICO-MILANO
Tel: [phone]
Fax : [phone]
E-mail : [e-mail]

Norton Diamantove Nastroje Sro
Vinohrdadska 184
CS-13000 PRAHA 3
Tel: [phone]
Fax : [phone]
e-mail : [e-mail]

Saint-Gobain Abrasives GmbH
Telsenberggasse, 37
A-5020 SALZBURG
Tel : [phone]
Fax : [phone]
E-mail : [e-mail]

Saint-Gobain Diamond Products Sp.zO.O.
AL. Krakowska 110/114
PL-00-971 WARSZAWA
Tel: [phone]
Tel/Fax: [phone]
E-mail: [e-mail]

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SAINT-GOBAIN ABRASIVES

190, Bd. J. F. Kennedy
L-4930 BASCHARAGE
LUXEMBOURG

Tel.: ++352 50401-1
Fax: ++352 501633

e-mail: [e-mail]

www.construction.norton.eu

12.05.10

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