Norton clipper CM 352 User manual

CM 352
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 Saws: CM 352 115V UK Code: 70184607385
CM 352 230V 70184607386
is in conformity with the following Directives:
"MACHINES" 2006/42/CE
"LOW VOLTAGE" 2006/95/CE
"ÉLECTROMAGNÉTIC COMPATIBILITY" 2004/108/CE
"NOISE" 2000/14/CE
and European standard:
EN 12418 –Masonry and stone cutting-off machines –Safety
Valid for machines as of serial number: 0000000000000
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, le 04.04.2019
François Chianese, executive officer.
Declaration of conformity

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CM 352
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
2MACHINES DESCRIPTION 8
2.1 Short description 8
2.2 Purpose of use 8
2.3 Layout 8
2.4 Technical data 10
2.5 Statement regarding the vibration emission 11
2.6 Statement regarding noise emission 12
3ASSEMBLY AND COMMISSIONING 13
3.1 Feet assembly 13
3.2 Tool assembly 13
3.3 Electrical connections 13
3.4 Water cooling system 14
3.5 Starting the machine 14
4TRANSPORT AND STORING 15
4.1 Securing for transport 15
4.2 Transport procedure 15
4.3 Storing of the machine 15
5OPERATING THE MACHINE 16
5.1 Installation 16
5.2 Cutting methods 16
6MAINTENANCE AND SERVICE 19
7BREAKDOWN –CAUSES AND CURES 20
7.1 Breakdown-finding procedures 20
7.2 Trouble-shooting guide 20
7.3 Circuit diagram 230V 21
7.4 Customer service 22
7.5 Spare parts 23

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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
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.
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!
Machine Model
Machine Code
Weight
Year of production
Maximum blade diameter
Machine type
Serial number
Power
Safety standard
Blade speed
Bore
diameter

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2 MACHINES 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 CM 352 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 352 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
6
4
1
5
3
2

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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 1.8kW 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.
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.

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2.4 Technical data
Machines
CM 352 2.2KW - 230V
CM 352 1.8KW - 115V
Motor
2.2 kW 230V
With thermal overload
protection
1.8 kW 115V
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

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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
CM 352
115V UK
70184607385
CM 352 230V
70184607386
2.2
0.5
Clipper ALFA
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
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)
CM 352
115V UK
70184607385
CM 352 230V
70184607386
73 dB(A)
2.5 dB(A)
87 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 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.

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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 prematurefailure 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.

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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.
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.

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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

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

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5.2.3 45° bevel cuts
With the CM 352 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 352 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.
Nut

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6 MAINTENANCE AND SERVICE
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:
Begin of the work
During changing the tool
End of the work
Every week
After a breakdown
After a damage
Whole machine
Visual control
general aspect, water
tightness
Clean
Flange and blade fixing devices
Clean
Motor cooling fans
Clean
Water pump
Clean
Conveyor cart
Clean
Water tray
Clean
Water hoses and nozzles
Clean
Water pump filter
Clean
Conveyor cart guiding bars
Clean
Motor 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 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.

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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
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 switch
CAUTION : can only be solved by
qualified electrician
Defective motor
Change motor or contact motor
manufacturer
Defective connection cable
Change connection cable
Motor stops during the
cutting, but can be
restarted after a short
period (overload protection)
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
Change blade
No water on the blade
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
Prime the pump
Reactivate switch
CAUTION : if switch trips again,
problem can only be solved by a
qualified electrician