RED BAND Clipper CS451 User manual

OPERATOR’SSAFETY
AND SERVICE MANUAL
Clipper CS451
Floor Saw
RED BAND UK LTD Tel: [phone]
Units 41 -45 • The Warren Fax: [phone]
East Goscote Ind. Est. [e-mail]
East Goscote • Leicester www.redbanduk.co.uk
LE7 3XA

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For all spare parts please contact:
Red Band UK Ltd
Units 41 - 45
The Warren
East Goscote Industrial Estate
East Goscote
Leicester
LE7 3XA
Tel : [phone]
Fax : [phone]
e-mail : [e-mail]
web : www.redbanduk.co.uk

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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 P13 Code: 70184628433
is in conformity with the following Directives:
•European Machinery Directive 2006/42/EC
•Electromagnetic Compatibility Directive 2004/108/EC
and European standard:
•EN 13862 Floor cutting-off machines - Safety
Pierre Mersch
Business Manager Machines Europe
Declaration of conformity

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CS 451 P13
OPERATING INSTRUCTIONS AND SPARE PARTS LIST
1 Basic Safety Instructions 6
1.1 Symbols 6
1.2 Machine plate 7
1.3 Safety instructions for particular operating phases 7
2 General description of the CS 451 8
2.1 Short description 8
2.2 Layout 9
2.3 Technical data 11
2.4 Vibration emission declaration 11
3 Assembly and commissioning 12
3.1 Operator’s handle assembly 12
3.2 Tool assembly 12
3.3 Water cooling system 12
3.4 Starting the machine 13
4 Transport and Storing 14
4.1 Securing for transport 14
4.2 Transport and lifting procedure 14
4.3 Long period of inactivity 14
5 Operating the CS 451 15
5.1 Site of work 15
5.2 Cutting method 15
6 Maintenance and service 16
6.1 Maintenance of the machine 16
6.2 Maintenance of the engine 17
7 Breakdowns: causes and cures 21
7.1 Breakdown-finding procedures 21
7.2 Trouble-shooting guide 21
7.3 Customer service 21
8 Appendix 22
8. Spare parts list 22
8.1 Exploded part drawings 24

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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 shall be worn
Cutting depth indicator Emergency Stop
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

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Danger: risk of cut
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.
•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 equipment as mentioned in the symbols plus a dust mask when dry cutting is applied.
•For security reasons, never leave the machine unattended, untied or unlocked.
Machine code Year of production Maximum blade diameterMachine model Weight Bore diameter
Machine type Serial number Power Safety standard Blade speed

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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 when dry cutting to
avoid 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 petrol is spilled on any motor part. Always wipe up
spilled fuel.
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.
An optimized mass repartition and positioning of 25 litre water tank allow outstanding cutting
performance as well as easy handling.
Operator can use specific devices to set cutting depth and track easily.
Ergonomic handles height can be set at right value whatever the cutting depth; handles feature
a built-in vibration absorbing device.
Reinforced frame reduces vibration level as well as operator’s fatigue.
CS 451 has taper lock pulleys and 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 component parts 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 detachable or can be reversed for easy transportation. The height is
adjustable whatever the cutting depth. A specific built-in device reduces vibrations.
Machine frame is designed in a way to reduce vibrations too, improving working conditions.
The pivoting frame (4), hinged on the rear axle, is supporting the engine, the blade shaft
assembly, and the protecting guards. Poly-V belt drives the blade.
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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 is a Poly-V pulley with taper lock and 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 flange 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 13 HP Honda GX390 engine (6) is connected to an emergency shut down switch (7) on the
right side of the machine near the levers. This allows an immediate stop of the machine in case
of danger.
The water cooling system (8) is composed of a 25 litre water tank, a water tank tap and two
water nozzles located on the blade guard ensuring adequate flow of water to both sides of the
cutting blade. This system can be connected directly to tap water too.
The pointers (9) allow the operator to make precise cut easily.
The set including front cutting guide, guide attached to blade cover, and rear cutting guide allow
to align easily and accurately blade with cutting line.
A hook (10) allows the CS 451 to be lifted in an easy and well balanced way.
Parking brake (11) secures the machine when it is not running.

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2.3 Technical data
Engine Honda GX390, 4 stroke, 1 cylinder, 13HP (9,6kW)
Fuel Automotive unleaded gasoline with a pump octane rating of 86 or higher
(research octane rating of 91 or higher)
Oil Honda 4-Stroke, or equivalent high detergent, premium quality motor oil certified
to meet or exceed U.S. automobile manufacturer’s requirement for service
classification SG, SF. (SG, SF designated on the oil container).
SAE 10W-30 recommended
Starter Manual pull cord
Air filter Cyclone type
Max. blade diameter 450 mm
Bore 25,4 mm
Max. cutting depth mm 170 mm
Flange diameter 108 mm
Blade shaft speed 2573 min
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Driving belt Poly-V
Water tank 25 l
Machine dimensions
(length x width x height) 1180 x 538 x 1040 mm in cutting configuration
Weight 112 kg
Max. operating weight 135 kg
Sound pressure level 88 dB (A) (ISO EN 11201)
Sound energy level 105 dB (A) (ISO EN 3744)
Vibration emission value 2.8 m/s² (according to EN 12096)
2.4 Vibration emission declaration
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 P13
70184628433 2.8 0.5 Duo Extreme Ø350x25.4mm 70184624580
Values determined according to EN 13862
Measurements are made with new machines. Values could vary with the operating conditions
(wear & tear of the machine and tool, operator, cutting-off surface, tool specification…)

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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.
A blade with a maximum diameter of 450 mm can be fitted. 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 screws maintaining the guard and turn the blade guard open.
•Loosen the hexagonal nut (attention: 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 in place outer blade flange.
•Tighten hexagonal nut with spanner supplied for this purpose (left hand thread).
•Close the blade guard and tighten the screws.
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 tank water-tap (note that handle on water-tap should be in line with water-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 tap.
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.
Turn the fuel valve to the ON position. Move the choke lever to the CLOSED
position.
NOTE: do not use the choke if the engine is
warm or the air temperature is high.
Move the throttle control lever slightly to the
left. Put the engine switch on ON, and make sure the emergency switch on the board of the
machine is in the ON position.
Pull the starter grip lightly until you feel
resistance, then pull briskly.
CAUTION: Do not allow the starter grip to
snap back against the engine. Return it
gently to prevent damage to the starter.
As the engine warms up, gradually move the
choke lever to the OPEN position.
Position the throttle control lever for the
maximum engine speed (full left).
To stop the engine, move the throttle control lever fully to the right, then turn the engine switch
to the OFF position. Turn the fuel valve to the OFF position.

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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 the handle in its fixing tube and secure it using the locking screws.
•Raise the guide-a-cut in its upright position.
•Raise the cutting head 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. Use the metal hook located over
the water tank to lift the machine with a crane. Utilization of other part of the machine (e.g.
handles) is absolutely prohibited.
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 motor 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.
•Place, when used, the water hose so that it can’t 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 you have filled the engine tank with fuel, and the water tank with water, our, when
possible, the machine is connected to the water net. No petrol is supplied with the machine.
•The engine is shipped with oil. Check oil level before starting. Top up if required.
•Make sure you have mounted the correct blade 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 efficiency required.
•Make sure that the flanges securely hold the diamond blade.
•Make sure that the blade is not touching the floor before starting; you can 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 guide-a-cut so it touches the line.
•Align front cutting guide, guide attached to blade cover and rear cutting guide with the line.
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.
•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 depth of cut.

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•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.
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 belt, firstly remove the belt guard by unscrewing the 4 nuts. Loose the 4 engine
bolts and shift the engine by using the two screws on the front. Then tighten the 4 bolts.
To replace the belt, move the engine completely to the front. Adjust the belt and retighten it by
shifting the motor to the rear. Then tighten the 4 bolts.
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.

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6.2 Maintenance of the engine
Regular service period
Perform at every indicated month or
operating hour interval, whichever comes
first
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Each use First month or 20 hours Every 3 months or 50 hours Every 6 months or 100 hours
Engine oil Check level
Change
Air Cleaner filter Check
Clean
Fuel strainer cup Clean
Spark plug Check-Clean
Fuel line Check (Replace if necessary) Every 2 years
Engine oil
To change the oil,
•Remove the oil filler cap/dipstick and
drain bolt.
•Allow the oil to drain completely.
•Dispose of used motor oil in a manner
that is compatible with the
environment. We suggest you to take
used oil in a sealed container to your
local recycling centre or service station
for re-treatment. Do not throw it in the
trash, pour it on the ground or down in
a drain.
•Reinstall the drain bolt, and tighten it
to 18 N.m.
•Fill the crankcase with the engine oil to
the outer edge of the oil filler neck.
•Reinstall the filler cap/dipstick.
OIL DRAIN HOSE
OIL FILLER CAP/DISTICK
SEALING WASHER
OIL DRAIN BOLT « UPPER » LEVEL

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Air Cleaner
CS 451 has a dual type filter.
To service the air cleaner filter, remove
the blade and the water tank from the
machine, and drive the engine support in
its lowest position using the hand wheel.
Follow these instructions:
•Remove the nut, air cleaner cover and
wing nut.
•Remove the pre air cleaner elements
and separate them.
•Carefully check both elements for
holes or tears and replace if damaged.
•Paper element: tap element lightly
several times on a hard surface to
remove excess dirt or blow
compressed air lightly through the filter
from the inside out. Never brush the
dirt off; brushing will force dirt into the
fibres.
•Foam element: clean in warm soapy
water, rinse and allow drying
thoroughly. Dip the element in clean
engine oil and squeeze out all the
excess. The engine will smoke during
initial start-up if too much oil is left in
the foam.
•Shine a light through the elements,
and inspect them carefully. Reinstall
the elements if they are free of holes
and tears.

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Cyclone filter
When the cyclone housing becomes dirty,
unscrew the three special pan screws and
wipe or wash the components with water.
Next, thoroughly dry the components and
carefully reassemble them.
When reinstalling the cyclone, ensure that
the tab on the air intake fits properly into
the groove in the pre-cleaner cap.
Be careful to install the air guide in the
proper direction.
Fuel strainer cup
To service fuel strainer cup, follow these
instructions:
•Turn off the fuel valve and remove the
strainer cup.
•Clean the strainer cup with solvent.
•Install the O-ring and strainer cup.
•Tighten the strainer cup to 4N.m.
Spark plug
To service the spark plug, follow these
instructions:
•Visually inspect the spark plug.
Discard the plug if the insulator is
cracked or chipped.
•Remove carbon or other deposits with
a stiff wire brush.
•Measure the plug gap with a wire-type
feeler gauge. If necessary, adjust the
gap by bending the side electrode.
•Make sure the sealing washer is in
good condition; replace the plug if
necessary.
•
Install the plug finger tight to seat the washer, then tighten with a plug wrench (an additional
½ turn if a new plug) to compress the sealing washer. If you are reusing a plug, tighten 1/8-
1/4 turn after the plug seats.

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Fuel line
To service the fuel line, follow these
instructions:
•Drain the fuel into a suitable container,
and remove the fuel tank.
•Disconnect the fuel line, and unscrew
the fuel filter from the tank.
•Clean the filter with solvent, and
check, that the filter screen is
undamaged.
•Place the O-ring on the filter and
reinstall. Tighten the filter to 2N.m.
After reassembly, check for fuel leaks.
Further maintenance
For further maintenance, please contact the nearest engine maintenance centre.