SAINT-GOBAIN Norton Clipper CS 451 D7 User manual

CS 451 D7
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:
« Floor saw »: CS 451 D7 Code : 70184629089
is in conformity with the following Directives :
"MACHINES" 2006/42/CE
"ELECTROMAGNETIC COMPATIBILITY" 2004/108/CE
"NOISE" 2000/14/CE
And the European standard:
EN 13862 –Floor cutting-off machines –Safety
Valid for machines as of serial number:
70100000
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, 01/02/2012.
Olivier Plenert, executive officer.
Declaration of conformity

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CS 451 D7
OPERATING INSTRUCTIONS
1BASIC SAFETY INSTRUCTIONS 6
1.1 Symbols 6
1.2 Machine plate 7
1.3 Safety instructions for particular operating phases 8
2GENERAL DESCRIPTION OF THE CS 451 9
2.1 Short description 9
2.2 Layout 10
2.3 Technical data 12
2.4 Statement regarding the vibration emission 13
2.5 Statement regarding noise emission 14
3ASSEMBLY AND COMMISSIONING 15
3.1 Operator’s handle assembly 15
3.2 Tool assembly 15
3.3 Water cooling system 15
3.4 Starting the machine 16
4TRANSPORT AND STORING 17
4.1 Securing for transport 17
4.2 Transport and lifting procedure 17
4.3 Long period of inactivity 17
5OPERATING THE CS 451 18
5.1 Site of work 18
5.2 Cutting method 18
6MAINTENANCE AND SERVICE 20
6.1 Maintenance of the machine 20
6.2 Maintenance of the engine 21
7Breakdowns: causes and cures 26
7.1 Breakdown-finding procedures 26
7.2 Trouble-shooting guide 26
7.3 Customer service 27

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1 BASIC SAFETY INSTRUCTIONS
The CS 451 is exclusively designed for the cutting of floors made of asphalt, green and cured
concrete (reinforced or not) as well as of industrial cement.
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
Cutting depth indicator
Danger: risk of cut

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Rotation of the wheel in the indicated
direction lowers the blade
Rotation of the wheel in the indicated
direction raises the blade
Never move the machine with the blade
running idle.
Rotation direction of the blade
1.2 Machine plate
Important data can be found on the following plate located on the machine:
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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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.
Always cut with the blade guard in position.
Only fit NORTON diamond blades 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, Regulation 2(2) Part 1. Also use the other safety
equipments mentioned on the symbols and a dust mask when you are dry cutting.
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.
Do not run the machine without the security guards in place.
Apply cooling water continuously whilst cutting and in good time (even while dry cutting to avoid
excessive dust)!
Petrol powered machines:
Always use the fuel advised.
In confined areas, exhaust gases should be evacuated and the job site properly aerated.
Petrol and diesel machines, which by their nature emit toxic exhaust gases, must not be used in
places prohibited by the Health at Work etc. Act 1974 or which are prohibited by Factory
Inspectors or Safety Officers.
Fuel is flammable. Before filling the tank, shut down the engine, extinguish all open flames and
do not smoke. Take care that no fuel is spilled on any motor part. Always wipe up spilled fuel.

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2 GENERAL DESCRIPTION OF THE CS 451
Any modification, which could lead to a change in the original characteristics of the machine, may
be done only by Saint-Gobain Abrasives S.A. who shall confirm that the machine is still in
conformity with the safety regulations. Saint-Gobain Abrasives S.A. keeps the right of making
technical or design modification without prior notification.
2.1 Short description
The Floor Saw CS 451 you have chosen is used for small repair works in concrete and asphalt, for
cutting induction loops and installing cables as well as for cutting expansion joints. It can be used
either for wet or dry cutting operations.
The optimized weight distribution and the position of 25 litre water container ensure outstanding
cutting performance as well as easy handling.
Specific machine parts allow continuously setting the cutting depth and easily keeping the desired
cutting direction.
Ergonomic handles can be set at right height independently from the cutting depth; handles feature
a built-in vibration absorbing device. Reinforced frame reduces vibration level and therefore
operator’s fatigue.
The CS 451 has taper lock pulleys and a Poly-V belt for better reliability and easy maintenance.
Being of small construction, it can be transported in a car or van; the handle can be removed,
reversed or retracted. The 25 litre water container is also removable.
All components on the CS 451 are assembled to a high quality standard, ensuring long life,
reliability and a minimum of maintenance.
Special types of blades are available for asphalt, green concrete, cured concrete (reinforced or not)
as well as for industrial cement flooring.

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2.2 Layout
Made of jig welded open profile steel, the CS 451 is stable but at the same time, easily
transportable.
The one-piece blade guard (1) fully protects the operator and his working environment. It is firmly
fixed to the main frame but can be opened by rotation to change blades.
A manually operated hand wheel mechanism (2) enables graduated depth setting. Turning the hand
wheel clockwise or anti-clockwise will lower or raise the cutting blade. A depth gauge allows the
operator to control precisely the depth of cut.
The handle (3) is removable or can be reversed for easy transportation. The height is adjustable
independently from the cutting depth. A specific built-in device reduces vibrations.
The machine frame is also designed to reduce vibrations, improving work conditions.
The pivoting frame (4), hinged on the rear axle, is supporting the engine, the blade shaft assembly,
and the protecting guards. A Poly-V belt drives the blade.
1
2
4
5
6
8
9
3
10
11

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The precisely manufactured blade shaft is fitted into two heavy-duty self-aligning pillow block
bearings, including grease nipples. On one end, a Poly-V pulley with taper lock fixing is assembled.
On the other end, the shaft is reduced to 25,4mm, allowing an inner flange to be fixed. Outer flange
is assembled on the shaft with a 36mm locking nut.
(A 20 mm thick spacer and an outer flange, with dowel pinholes, can be provided as accessories)
The steel belt guard (5) is a sealed two piece unit. The backing plate is bolted to the mainframe of
the machine and locking nuts are welded to it. The outer guard, covering the Poly-V belt and taper
lock pulleys, is held in place by four locking bolts.
The HATZ 1B30 diesel engine (6) is started using a recoil starter. The following picture is showing
the different parts of your engine that you need to know in order to use and maintain your machine
correctly:
1. Type plate
2. Cylinder head cover
3. Exhaust silencer
4. Exhaust mesh insert
5. Oil pressure switch
6. Starter motor
7. Voltage regulator
8. Crankshaft –power take-
off
9. Oil drain plug
10. Speed adjustment lever
11. Oil filter
12. Engine mountings
13. Ignition key
14. LED display
15. Intake opening for cooling
and combustion air
16. Oil filler cap and dipstick
17. Recoil starter
18. Engine shutdown pin
19. Dry-type air cleaner
20. Lifting lug
21. Fuel tank cap
22. Noise insulating hood
The water cooling system (8) is composed of a 25-litre water tank, a water tank cock and two water
nozzles located on the blade guard ensuring adequate flow of water to both sides of the cutting
blade. This system can also be connected directly to tap water.
The pointers (9) allow the operator to make precise cut easily. It is composed of a front cutting
guide, a sight welded on the blade guard and rear guide assembled on the back of the blade guard.
The combination of these 3 devices allows easy and accurate alignment of the blade with cutting
line.
A hook (10) allows the CS 451 to be lifted easily, safely, and in a balanced way.
Parking brake (11) secures the machine when it is not running.

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2.3 Technical data
Engine
Hatz 1B30, 7HP (5kW)
Fuel
Diesel complying with the following minimum specifications :
EN590 or DIN15601 –DK or BS 2869 A1/A2 or ASTM D975 –1D / 2D
Oil
Oil complying with the following minimum specifications:
CCMC –D4 –D5 –PD2 or API –CD –CE –CF –CG or SHPD
Viscosity recommended : SAE 10W-30 (outside temperature between -
5ºC and 35ºC)
Starter
Manual pull cord
Max. blade diameter
450 mm
Bore
25,4 mm
Max. cutting depth mm
170 mm
Flange diameter
108 mm
Blade shaft speed
2573 min-1
Driving belt
Poly-V 698PK10
Water tank
25 l
Machine dimensions
(length x width x height)
1180 x 538 x 1040 mm in cutting configuration
Weight
120 kg
Max. operating weight
153 kg
Sound pressure level
91 dB (A) (ISO EN 11201)
Sound energy level
110 dB (A) (ISO EN 3744)
Vibration emission value
4,7 m/s² (according to EN 12096)

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2.4 Statement regarding the vibration emission
Declared vibration emission value in accordance with EN 12096
Machine
Model / code
Measured vibration
emission value a m/s2
Uncertainty K
m/s2
Tool used
Model / code
CS 451 D7
70184629089
4,7
0,5
ZML 3270 NS Ø450x25.4
Values determined according to the procedure described in annex F of EN 13862
Measurements are made with new machines. Actual values on site could vary dramatically
(the simple one with the double) according to operating conditions, like :
oMaterial to be cut
oCutting depth
oWear of the machine
oLack of maintenance
oTool not adapted to application
oTool in bad shape
oNon-specialised operator
Exposure time to vibrations also depends on cutting performance (adequacy machine / tool /
material to cut / operator)
To evaluate risks due to hand-arm vibrations, you also need to take into account the
effective usage at full power of machine during a full day of work. In most case, you will
realise it represents around 50% of the overall duration of work when you remove breaks,
refilling of water and fuel tanks, preparation of work, time to move the machine on site, blade
assembling…

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2.5 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)
CS 451 D7
70184629089
91 dB(A)
2.5 dB(A)
110 dB(A)
4 dB(A)
Values determined using the procedure described in the standard EN 13862.
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
Before beginning the work with the CS 451, you have to assemble some parts.
3.1 Operator’s handle assembly
Secure the operator’s handle in a comfortable user position by using the locking screws.
3.2 Tool assembly
Only NORTON blades with a maximum diameter of 450 mm can be fitted on the CS 451.
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, switch the machine off.
To mount a new blade, follow these steps:
Turn the hand wheel until the pivoting frame is in the raised position.
Loosen the screw maintaining the guard and turn the blade guard open.
Loosen the hexagonal nut (careful: left hand thread).on the blade shaft, which holds the
removable outer flange. Remove the nut and the outer flange Remove the nut and the outer
flange.
Clean the flanges and blade shaft and inspect for wear.
Mount the blade on the shaft ensuring that direction of rotation (arrow on blade steel centre) is
correct. Wrong direction of rotation blunts the blade quickly.
Put the outer blade flange back in place.
Tighten the hexagonal nut with the 36mm spanner supplied for this purpose (left hand thread).
Close the blade guard and tighten the maintaining screw.
ATTENTION! The blade bore must correspond exactly to the blade shaft. Cracked or damaged bore
is dangerous for the operator and for the machine.
3.3 Water cooling system
Fill in the water tank with clean water.
Open the cock on the water tank (note that handle of the water cock should be in line with the
flow).
Ensure that water is flowing freely in the circuit and delivered adequately to both sides of the
blade, as insufficient water supply may result in premature failure of the diamond blade or
excessive dust generation.
If needed, adjust water flow with blade guard water cock.
In case of frost, empty the water cooling system.

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3.4 Starting the machine
Make sure the blade is raised clear up the ground before starting the machine.
Set the speed adjuster to the STOP position, then move it to the START/RUN position, by
pulling the knob and stick it on the metal part. Never use starting sprays.
Pull the starting cable out by the handle until
you feel a slight resistance. Let the cable run
back; in this way the entire length of the
starting cable can be used to start the
machine. .
Grip the handle with both hands. Commence
pulling the starting cable vigorously and at an
increasing speed (do not jerk it violently) until
the engine starts.
If after several attempts of starting the exhaust begins to emit white smoke, move the speed
adjustment lever to the STOP position and pull the starting cable out slowly 5 times. Then repeat the
starting procedure.
To stop the machine, set the speed adjuster knob to the STOP position, and press it until the engine
cuts out.

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4 TRANSPORT AND STORING
Take the following measures in order to transport and store the CS 451 securely.
4.1 Securing for transport
Before transporting the machine:
Remove the blade.
Empty the water tank.
Lower handles in its fixing tube and secure it using the locking screws.
Raise the front guide in its upright position.
Raise the pivoting frame to its highest position using the hand wheel, in order to activate the
parking brake.
4.2 Transport and lifting procedure
The machine can be moved on a flat surface using its wheels. Only use the metal hook located over
the water tank to lift the machine with a crane.
No other part (e.g. handles) is dimensioned to lift the machine. It is therefore absolutely prohibited to
do so.
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.
Loosen the drive belt.
Grease the threaded shaft.
Possibly change the engine oil.
Empty the water system.
Activate the parking brake by raising the cutting head.
The storage site must be clean, dry and at a constant temperature.

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5 OPERATING THE CS 451
5.1 Site of work
Before you start working, please check the following points:
Remove from the site anything, which might hinder the working procedure.
Make sure the site is sufficiently well lit.
If water hoses are used, place them so that they cannot be damaged.
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.
5.2 Cutting method
In this section, you can find instructions on how to make a straight cut at the desired depth.
5.2.1 Preparing your cut
Before starting the machine,
Draw a line on the floor over the cutting length.
Make sure that you have filled the engine tank with fuel, and the water tank with water, or, when
possible, that the machine is connected to the water network. No fuel is supplied with the machine.
The engine is shipped with oil. Check oil level before starting. Top up if required.
Make sure you have assembled the correct blade as recommended by the manufacturer
depending on the material to be cut, the working procedure (dry or wet cut) to be carried out,
and the efficiency required.
Make sure that the flanges securely hold the diamond blade.
Make sure that the blade is not touching the floor before starting; turn the hand wheel up to the
mechanical stop.
Adjust the handle to a comfortable position.
Roll the machine until the blade is over the line.
Lower the front guide so it touches the line.
Align the front cutting guide, the sight welded on the blade guard and the rear cutting guide with
the line.

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5.2.2 Cutting the floor
You can now start the engine.
To make your cut,
Turn the depth hand wheel until the blade slightly touches the floor.
Open water valve to control the amount of water required for the type of blade, using 15 to
25l/min for wet cutting and 1-2l/min for dry cutting (dust control). Check for minimum water level
regularly when using the water tank.
To lower blade into the cut, turn hand wheel clockwise. Each turn of the hand wheel will raise or
lower the blade by 10mm. To prevent the blade to rise with vibrations, you can use the hook on
the main panel to lock the hand wheel.
Once the required depth of cut is reached, push the machine forward with steady and gentle
pressure and follow the line with the cutting guides. The feed speed must be adjusted
depending on the material being cut, and the depth of cut.
At the end of the cut, raise the blade out of the cut by turning the hand wheel anti-clockwise,
shut-off the water and switch off the engine.

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6 MAINTENANCE AND SERVICE
CAUTION: to perform maintenance of the machine, always switch it off. Always wear a mask and
safety goggles while performing the maintenance of machine.
6.1 Maintenance of the machine
To ensure a long-term quality from the cutting with the CS 451, please follow the maintenance plan
below:
Regular service period
Perform at every
indicated period

After one hour of work
Beginning of the day
During tool change
End of the day
Once a week
After a failure
After a damage
Whole machine
Visual control (general
aspect, sealing)
Clean
Flange and blade fixing devices
Clean
Belt tension
Control
Water hoses and nozzles
Clean
Depth screw
Grease
Engine housing
Clean
Reachable nuts and screws
Tighten up
Adjustment and replacement of the belt
After one hour of work, the belt heats up and stretches. Therefore, you have to re-tighten it.
To adjust the belts, firstly remove the belt guard by unscrewing the 4 screws. Loose the screw
maintaining the tensioning device with the 17mm wrench. You can know re-tension using a 36mm
wrench to turn the tensioning device. Retighten the maintaining screw, and re-assemble the belt
guard.
To replace the belts, loose the screw maintaining the tensioning device and turn the tensioning
device in order to release the belt. Adjust the belts and retighten them by moving the tensioning
device back on the belt with the 36mm wrench then retighten the maintaining screw of the
tensioning device.
Lubrication
The CS 451 uses life-lubricated bearings. Therefore, you don’t need to lubricate them at all.
Grease the depth screw once a week.
Cleaning of the machine
Your machine will last longer if you clean it thoroughly after each working day.