Clarke Contractor CROS2 Installation and operation manual

VARIABLE SPEED
JIG SAW
OPERATING & MAINTENANCE
INSTRUCTIONS 0307
Part No. 6460200
RANDOM ORBITAL SANDER
MODEL No. CROS2
Part No. 6462011
RANDOM ORBITAL SANDER

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Thank you for purchasing this CLARKE Variable Speed Random Orbital Sander, which is
designed for DIY and light workshop use only.
Before attempting to use the sander, please read this manual thoroughly and follow the
instructions carefully. In doing so you will ensure the safety of yourself and that of others
around you, and you can look forward to the Sander giving you long and satisfactory
service.
GUARANTEE
This product is guaranteed against faulty manufacture for a period of 12 months from the
date of purchase. Please keep your receipt which will be required as proof of purchase.
This guarantee is invalid if the product is found to have been abused or tampered with in
any way, or not used for the purpose for which it was intended.
Faulty goods should be returned to their place of purchase, no product can be returned
to us without prior permission.
This guarantee does not effect your statutory rights.
SPECIFICATIONS
Model ........................................................ CROS2
Part No ....................................................... 6462011
Electrical Supply ....................................... 230V 50Hz 1 ph
Power Rating ............................................. 750 Watt Motor
Fuse Rating ................................................ 13 Amp
No Load Speed (Variable) ...................... 4,000-7,000 RPM
Net Weight ................................................ 2.97kg
Pad Size ..................................................... 150mm
Vibration Emissions ................................... Refer to notes on pages 11 & 12
This Product Conforms To 98/37/EEC Regulations
Please note that the details and specifications contained herein, are correct at the time of going to print. However, CLARKE
International reserve the right to change specifications at any time without prior notice.
When disposing of this product, ensure it is disposed of according to all local ordinances. It must
not be disposed of with general household waste.

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SAFETY PRECAUTIONS
WARNING:
As with all machinery, there are certain hazards involved with their operation
and use. Exercising respect and caution will considerably lessen the risk of
personal injury. However, if normal safety precautions are overlooked or
ignored, personal injury to the operator or damage to property, may result.
1.ALWAYSLearn the machines applications, limitations and the specific potential
hazards peculiar to it. Read and become familiar with the entire operating manual.
2. ALWAYS use a face or dust mask when sanding.
3. ALWAYS check for damage, before using the machine. Any
damage should be properly repaired or replaced. If in doubt, DO
NOT use the machine. Consult your local dealer.
4. ALWAYS disconnect the machine from the power supply before
servicing and when changing the belt.
5. ALWAYS wear safety goggles, manufactured to the latest European
Safety Standards.Everyday eyeglasses do not have impact resistant lenses, they are
not safety glasses.
6. ALWAYS keep work area clean. Cluttered areas and benchesinvite accidents.
7. ALWAYS ensure that sufficient lighting is available. Position lighting in a way that you
will not be working in your own shadow.
8. ALWAYS keep children away. All visitors should be kept at a safe distance from the
work area.
9. ALWAYS maintain the machine in top condition. Keep tools/
machines clean for the best and safest performance.
Follow maintenance instructions.
10. ALWAYS handle with care do not carry the machine by its
electric cable, or yank the cable to disconnect it from the
power supply.
11. ALWAYS ensure the switch is off before connecting to the
mains to avoid accidental starting.
12. ALWAYS concentrate on the job in hand, no matter how trivial it
may seem. Most accidents are caused by carelessness due to
familiarity.
13. ALWAYS keep your footing and balance at all times do not
overreach. Wear rubber soled footwear and keep floor clear of
oil, scrap wood, etc.
14. ALWAYS wear proper clothing. Loose clothing or jewellery may
get caught in moving parts. Wear protective hair covering to
contain long hair.
15. ALWAYS use recommended accessories. The use of
improper accessories could be hazardous.

4
16. ALWAYS have your power tool serviced by a qualified repair
person using only identical replacement parts. This will ensure
that the safety of the power tool is maintained.
17. NEVER operate machine while under the influence of drugs,
alcohol or any medication.
18. NEVER leave machine running unattended.
19. NEVER force the machine. It will do a better and safer job at
the rate for which it was designed.
20. NEVER use power tools in damp or wet locations or expose
them to rain.
21. NEVER operate power tools in explosive atmospheres, such as
in the presence of flammable liquids, gases or dust. Power
tools create sparks which may ignite the dust or fumes.
ADDITIONAL PRECAUTIONS FOR POWER TOOLS
1. ALWAYS wear ear protectors/defenders as the noise level of this machine can
exceed 85dB (A).
2. ALWAYS use the appropriate sanding sheet for the material being worked.
3. ALWAYS keep the mains cable well away from the machine and ensure an adequate
electrical supply is close at hand so that the operation is not restricted by the length
of the cable.
4. ALWAYS use extreme caution when using power tools, avoid contact with earthed or
grounded surfaces (e.g. pipes radiators etc).
5. ALWAYS switch the machine OFF immediately the task is completed.
6. ALWAYS use secure the workpiece using clamps or vice etc.
7. ALWAYS store idle tools safely out of the reach of children in a dry location, preferably
locked away in a cupboard etc.
8. NEVER allow the ventilation slots in the machine to become blocked.
9. DO NOT exert pressure on sander to stop it quickly, allow it to stop normally.
10. DO NOT use the machine if the electric cable, plug or motor is in poor condition.
Additionally, please keep these instructions in a safe place for future reference.
Dust extraction
The sander is provided with a dust extraction facility, Please note however, that this does
not preclude the user from wearing a face mask to prevent the inhalation of dust
particles.
It is an EEC requirement that a dust extraction facility be provided on power tools, however,
due to the nature of the tool, some of the dust produced will be forced into the surrounding
atmosphere, and will not be collected.

5
ELECTRICAL CONNECTIONS
This product is provided with a standard 13 amp, 230 volt (50Hz), BS 1363 plug, for
connection to a standard, domestic electrical supply. Should the plug need changing at
any time, ensure that a plug of identical specification is used.
WARNING
This appliance is Double Insulated, and the two wires in the mains lead should
be wired up in accordance with the following colour code:
BLUE - NEUTRAL
BROWN - LIVE
• Connect the BLUE coloured wire to the plug terminal marked with a letter “N”
• Connect the BROWN coloured wire to the plug terminal marked with a letter “L”
If this appliance is fitted with a plug which is
moulded on to the electric cable (i.e. non-
rewireable) please note:
1. The plug must be thrown away if it is cut
from the electric cable. There is a
danger of electric shock if it is
subsequently inserted into a socket
outlet.
2. Never use the plug without the fuse
cover fitted.
3. Should you wish to replace a
detachable fuse carrier, ensure that the
correct replacement is used (as indicated by marking or colour code).
4. Replacement fuse covers can be obtained from your local Clarke dealer or most
electrical stockists.
Fuse Rating
The fuse in the plug must be replaced with one of the same rating (13 amps) and this
replacement must be ASTA approved to BS1362.
If in doubt, consult a qualified electrician. Do not attempt any electrical repairs yourself.
Cable Extension
Always use an approved cable extension suitable for the power rating of this tool (see
specifications), the conductor size should also be at least the same size as that on the
machine, or larger. When using a cable reel, always unwind the cable completely. If using
tool outdoors, only use extension cables intended for outdoor use.

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dust outlet
PREPARATION
Fitting Sanding Disk
Note :
Only use disks which have a velcro fixing capacity on the rear.
a) Ensure sander is switched OFF and plug is removed from mains socket.
b) Line up holes in disk with those on the machine pad. (This is necessary for dust
extraction), press disk firmly on to pad to secure it.
Handgrips
Your sander is fitted with two handgrips to ensure full control of the machine.
• Main handgrip (handle) with ON/OFF switch and power cable.
• Support grip.
Dust Collection
To fit the dust bag to your sander, slide the dust bag assembly, firmly over the dust
outlet, on the sander.
Note :
Dust bag must be emptied regularly, do not wait until it is completely full.
To Empty The Dust Bag
a) Ensure the sander is switched OFF and the plug has been removed from socket.
b) Remove dust bag assembly from sander by gently pulling it off of the dust outlet.
c) Take dust bag assembly to dustbin and slip bag off, (bag has elasticated top),
empty bag into bin.
d) Reassemble dust bag assembly and reattach it back on to the sander.
dust bag

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OPERATION
Insert the plug into the mains socket and switch on.
Hold the sander firmly with both hands and squeeze the trigger switch.
To switch the sander off, release the trigger switch.
Lock On Button
The trigger switch can be locked for
continuous sanding.
Press the Lock On button whilst squeezing
the trigger switch. To switch the sander
‘OFF’ when in continuous operation mode,
press the trigger switch fully and then
release it.
Variable Speed
Variable speed is achieved in two ways:
• By depressing the switch fully for maximum speed or less for slower speed.
• To control the maximum speed, turn the knob located on the trigger
switch from A(lower) - F(Faster).
Using The Sander
a) Before switching the sander ON, make sure that there are no nails or other objects
in the area to be sanded.
b) Switch the sander ON before applying it to the work surface. Move the sander
evenly over the work area. Never allow the sander to stay in one place for too
long as this will give an uneven finish.
c) Hold the sander with both hands, using both handles.
d) Replace worn sanding paper. The performance of your sander is dependant on
the quality of the sanding paper being used. Remove the sander from the work
area before switching it OFF, (wait until motor has stopped fully before putting tool
down).
Sanding Hints
• Do not apply excessive pressure to the sander. The weight of the sander alone is
sufficient for normal use
• Always start your sander before it comes into contact with the workpiece, and do
not switch off until it has been lifted off the workpiece.
• Always use both hands to hold the sander and clamp the workpiece for added
stability and safety.
• When sanding wood, always sand in the direction of the grain, if you sand across
the grain the sander will leave swirl marks.
Lock on button
Variable speed control

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TROUBLE SHOOTING
Sander Is Overheating
This indicates the machine is dirty. Clean the ventilation holes, and blow out with compressed
air or clean with a dry cloth.
Overloading the machine will also cause overheating. Do not use for heavy duty work, and
do not apply excessive pressure.
Excessive Sparking Occurs
This indicates worn brushes. This problem is quickly remedied but you should consult your
CLARKE dealer for parts and advice.
Sander Does Not Operate When Switched ON
Check to ensure the fuse is sound and replace if necessary. If the fuse is sound or blows
repeatedly, consult your CLARKE dealer.
The Dust Is Not Extracted
Dust bag is full (empty waste bag), dust extractor flue is blocked, this is usually caused by
allowing bag to become too full, (remove and empty bag, also clear blockage).
Note :
Ensure sander is switched OFF and isolated from the mains by removing plug from socket.
MAINTENANCE
WARNING !
Make sure that the sander is switched off and disconnected from the mains supply before
starting any cleaning or maintenance procedures.
After use clean out any accumulated dust or chippings etc. Keep the cooling vents
clear. If the sander should become too hot, run it for 2 minutes without load.
Clean the housing with a soft cloth. Any worn or damaged parts should be replaced by
qualified personnel. Keep the handles clean and free from oil and grease. There are no
user serviceable parts inside this sander. Refer to qualified service personnel if internal
maintenance is required.
ACCESSORIES
A wide range of accessories is available from your nearest CLARKE dealer, for further
information, contact your nearest dealer, or telephone CLARKE International Sales
department on 01992 565300

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PARTS LIST
PARTS & SERVICE TEL: [phone]
or e-mail as follows:
PARTS: [email protected]
SERVICE: [email protected]
Replacement sanding discs are available from your CLARKE dealer.
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PARTS DIAGRAM

11
VIBRATION EMISSIONS
HAND-ARMVIBRATION
Employers are advised to refer to the HSE publication “Guide for Employers”.
All hand held power tools vibrate to some extent, and this vibration is transmitted to the operator via
the handle, or hand used to steady the tool. Vibration from about 2 to 1500 hertz is potentially
damaging and is most hazardous in the range from about 5 to 20 hertz.
Operators who are regularly exposed to vibration may suffer from Hand Arm Vibration Syndrome
(HAVS), which includes ‘dead hand’, ‘dead finger’, and ‘white finger’. These are painful conditions and
are widespread in industries where vibrating tools are used.
The health risk depends upon the vibration level and the length of time of exposure to it……in effect, a
daily vibration dose.
Tools are tested using specialised equipment, to approximate the vibration level generated under
normal, acceptable operating conditions for the tool in question. For example, a grinder used at 45°
on mild steel plate, or a sander on softwood in a horizontal plane etc.
These tests produce a value‘
a’ , expressed in metres per second per second, which represents the
average vibration level of all tests taken, in three axes where necessary. This value appears in the
panel below.
‘
a ’ values in excess of 2.5 m/s2are considered hazardous when used for prolonged periods. A tool with
a vibration value of 2.8 m/s2may be used for up to 8 hours (cumulative) per day, whereas a tool with a
value of 11.2 m/s2may be used for ½ hour per day only.
The graph shows the vibration value against the maximum time the respective tool may be used, per
day.
It should be noted that if a tool is used under
abnormal, or unusual conditions, then the vibration
level could possibly increase significantly. Users must
always take this into account and make their own
risk assessment, using the graph above as a
reference.
Some tools with a high vibration value, such as
impact wrenches, are generally used for a few
seconds at a time, therefore the cumulative time
may only be in the order of a few minutes per day.
Nevertheless, the cumulative effect, particularly
when added to that of other hand held power tools
that may be used, must always be taken into
account when the total daily dose rate is
determined.
Declared vibration emission value in accordance with EN12096
Measured vibration emission value -
a: 4.46m/s2
Values determined according to EN28622-1