Norton Clipper CM 42 User manual

CM 42
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 42 115V UK Code: 70184647990
CM 42 230V UK 70184647989
CM 42 230V 70184647620
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 European standard:
EN 12418 –Masonry and stone cutting-off machines –Safety
Valid for machines as of serial number:
130400000
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, 01.04.2013
Olivier Plenert, executive officer.
Declaration of conformity

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CM 42
OPERATING INSTRUCTIONS
TABLE OF CONTENTS
1BASIC SAFETY INSTRUCTIONS...............................................................................................5
1.1 Symbols..................................................................................................................................5
1.2 Machine plate..........................................................................................................................6
1.3 Safety instructions for particular operating phases ............................................................6
2MACHINE DESCRIPTION ..........................................................................................................7
2.1 Short description....................................................................................................................7
2.2 Purpose of use .......................................................................................................................7
2.3 Layout .....................................................................................................................................7
2.4 Technical data ........................................................................................................................9
2.5 Statement regarding the vibration emission ......................................................................10
2.6 Statement regarding noise emission..................................................................................11
3ASSEMBLY AND COMMISSIONING .......................................................................................12
3.1 Tool assembly ......................................................................................................................12
3.2 Implementation of elements ................................................................................................12
3.3 Electrical connections..........................................................................................................12
3.4 Starting the machine............................................................................................................13
3.5 Water cooling system ..........................................................................................................13
4TRANSPORT AND STORING ..................................................................................................14
4.1 Securing for transport..........................................................................................................14
4.2 Transportation procedure....................................................................................................14
4.3 Long period of inactivity......................................................................................................14
5OPERATING THE MACHINE ...................................................................................................15
5.1 Site of work...........................................................................................................................15
5.2 Cutting methods...................................................................................................................15
6MAINTENANCE AND SERVICING...........................................................................................17
7FAULTS : CAUSES AND CURES ............................................................................................18
7.1 Fault-finding procedures .....................................................................................................18
7.2 Trouble-shooting guide........................................................................................................18
7.3 Circuit diagram.....................................................................................................................19
7.4 Customer service .................................................................................................................21

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1 BASIC SAFETY INSTRUCTIONS
The CM 42 is exclusively designed for the cutting of construction products 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!
Attention is drawn to the use of BS2092 safety goggles in conformity with specified Processes
No.8 of the Protection of Eyes Regulation 1974, Regulation 2(2) Part 1.
Use of ear and hand protection is compulsory.
For security reasons, never leave the machine unattended, untied or unlocked.
While the engine is running
Do not move the machine whilst the blade is running idle.
Always cut with the blade guard in position.
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 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 CM 42 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. 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 building and refractory
materials, or tiles. It is not designed for cutting wood or metals.
2.3 Layout

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Frame and feet (1)
The frame is made of a jig-welded reinforced steel construction to ensure perfect rigidity. 4
removable legs fit into housings welded on frame sides and locked into place with wing screws. The
front feet are adjustable. It is also equipped with wheels and handles for transportation.
Cutting head (2)
Spring loaded jig-welded steel console. The motor fixing points and the pivot are machined for
perfect fit. A locking system allows straight-through cutting without any other accessory.
Blade guard (3)
Jig-welded steel construction with 400mm-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.
Electrical motor (4)
2.2 kW (1.8 kW for 115V) electrical motor 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:
a) Tripping under light load if connection is incorrect
b) 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 non-slip top. As an accessory, a conveyor can tilt from 0 to 45º for
angle bevel tile cutting.
The machine guide system permits precise cuts to be made by virtue of four roller sheaves set at an
inclination to compensate for wear. The nylon-plastic sheaves and sealed-bearings permit easy
operation. Precise positioning of the material is possible thanks to the large surface area of the
conveyor cart and the variable angle guide-a-cut. The table has an anti-dumping system and a
locking latch.
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 large capacity water pan supplied with drain plug.
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 curtain, fixed to head axle restricts water spray and minimizes water loss.
The pump switch is located on the right side of the main switch.
Attention: The water pump must never run without water.

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2.4 Technical data
Electric motor
1,8 kW 115V with thermal overload protection
2,2 kW 230V with thermal overload protection
Electric motor protection
IP54
Max. blade diameter
400mm
Bore
25,4mm
Rotation speed of the blade
2800 min-1
Flange diameter
135mm (without reversing the material)
Cutting depth mm
90mm
Sound pressure level
80 dB (A) (ISO EN 11201)
Sound energy level
92 dB (A) (ISO EN 3744)
Max. cutting length mm
600mm
Table dimension (L x W)
500x540mm
Machine dimensions feet folded (L x W x H)
1187x741x729mm
Machine dimensions feet unfolded (L x W x
H)
1187x741x1355mm
Weights:
Fully equipped
90 kg
Ready for use (with water)
132 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 42
115V UK
70184647990
CM 42 230V UK
70184647989
CM 42 230V
70184647620
<2.5
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 42
115V UK
70184647990
CM 42 230V UK
70184647989
CM 42 230V
70184647620
80 dB(A)
2.5 dB(A)
92 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 (although without diamond blade). 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.
3.1 Tool assembly
Only NORTON blades with a maximum diameter of 400 mm can be used with the CM 42.
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.
3.2 Implementation of elements
The machine is delivered with its transportation handles disassembled. You have to mount these
handles thanks to the 4 supplied M10x25 crews.
The cutting head is locked in low-position by a hexagonal nut. Replace it by the supplied tension
lever.
On the left side of the machine, feet are locked in their folded position by nuts. Replace them by the
supplied tension levers then unfold the feet and lock them with the tension levers.
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.

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3.4 Starting the machine
Open the cover on the switch and press the green button to start the machine. Either press on the
red button or directly on the switch cover to stop the machine.
3.5 Water cooling system
Fill the water pan with clean water to approximately 2cm from top (ensure that bottom of pump is
fully immersed in water). Use the pump switch on the side of the main switch to start the pump.
Open the water-tap on 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 STORING
4.1 Securing for transport
Before transporting the machine, always remove the blade and empty the water pan. Lock the
conveyor thanks to the latch.
4.2 Transportation procedure
There are two ways to move the machine: By one person, its feet folded and making use of the
transport wheels, our by two persons with its feet folded our unfolded.
Always fold the feet while transporting the machine in a van our truck.
The machine does not have lifting hooks.
4.3 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
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
You will find in this chapter some advice about where and how to put up 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 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 Area dedicated for the use and maintenance of the machine
You should have 2 m in front of the machine and 1,5 m on both sides to get a comfortable use 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. Open the
switch cover and press the green button to start the machine. 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 position by tightening the clamping device
Put material on conveyor cart
Start the machine

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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,
Place the material to be cut on the conveyor cart firmly against the guide-a-cut and the
backstop, 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.
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.
Complete each rapid stroke backward and forward by passing the material beyond the centre of
the blade before starting the reverse movement of the conveyor cart.
NOTE: the harder the material, the more rapid should be the forward and backward strokes.
Step cutting lessens the area of the blade circumference in contact with the material, keeping the
blade cool, running free and cutting at peak efficiency.
5.2.3 General advice for the cutting
Material weight under 30 kg and having dimensions smaller than 600x600x135mm 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.
Apply cooling water continuously whilst cutting and in good time! Make sure the water pan
contains enough water.
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 SERVICING
To ensure a long-term quality from the cutting with the CM 42, please follow the maintenance plan
below :
At the beginning of a working
day
During the change of tool
At the end of a working day
Every week
After a fault
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
Water pan
Clean
Water tank
Clean
Water hoses and nozzles
Clean
Water pump filter
Clean
Cart guiding bars
Clean
Motor housing
Clean
Reachable nuts and
screws
Tighten
Maintenance of the machine
Always perform the maintenance of the machine with the machine isolated from the electrical
supply.
Lubrication
The CM 42 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
pump, water pan (which can be removed for easy cleaning), 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 switch
CAUTION : can only be
solved by a 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 every 10-
15 cuts 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 pan
Water supply system is
blocked up
Clean water supply system
Water pump is not working
Prime the pump or reactivate
the switch
CAUTION : if switch trips
again, problem only be
solved by a qualified
electrician

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7.3 Circuit diagram
115V

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230V