Clarke CONTRACTOR CON1050B Installation and operation manual

OPERATING & MAINTENANCE
INSTRUCTIONS
GC1014
1050W ANGLE GRINDER
MODEL NO: CON1050B
PART NO: 6474010

2
Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
INTRODUCTION
Thank you for purchasing this CLARKE Angle Grinder.
Before attempting to use this product, 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 your purchase
giving you long and satisfactory service.
Your Angle Grinder has been designed to give long and trouble free service. If,
however, having followed the instructions in this booklet carefully, you
encounter problems, take the unit to your local CLARKE dealer.
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.
ENVIRONMENTAL RECYCLING POLICY
Through purchase of this product, the customer is taking on the
obligation to deal with the WEEE in accordance with the WEEE
regulations in relation to the treatment, recycling & recovery and
environmentally sound disposal of the WEEE.
In effect, this means that this product must not be disposed of with general
household waste. It must be disposed of according to the laws governing
Waste Electrical and Electronic Equipment (WEEE) at a recognised disposal
facility.

3
Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
SAFETY SYMBOLS
The following safety symbols may be found on the machine.
Wear ear protection
Wear eye protection
Falls within WEEE Directive
Read instruction manual before use
Wear hand protection

4
Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
GENERAL SAFETY RULES
WORK ENVIRONMENT
1. Keep the work area clean and well lit. Cluttered and dark areas invite
accidents.
2. Do not 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.
3. Keep children and bystanders away while operating a power tool. Anyone
entering the work area must wear personal protective equipment.
Distractions can cause you to lose control and fragments of work or a
broken disc may fly away and cause injury.
4. Store power tools properly when not in use. Abrasive products should be
stored in a dry, secure place out of the reach of children.
ELECTRICAL SAFETY
1. Power tool plugs must match the outlet. Never modify the plug in any way.
Do not use adapter plugs with earthed (grounded) power tools. Unmodified
plugs and matching outlets will reduce the risk of electric shock.
2. Do not expose power tools to rain or wet conditions. Water entering a
power tool will increase the risk of electric shock.
3. Do not abuse the cable. Never use the cable for carrying, pulling or
unplugging the power tool. Keep the cable away from heat, oil, sharp
edges or moving parts. Damaged or entangled cables increase the risk of
electric shock.
4. When operating a power tool outdoors, use an extension cable suitable for
outdoor use. Use of a cable suitable for outdoor use reduces the risk of
electric shock.
PERSONAL SAFETY
1. Stay alert, watch what you are doing and use common sense when
operating a power tool. Do not use a power tool while you are tired or
under the influence of drugs, alcohol or medication. A moment of
inattention while operating power tools may result in personal injury.
CAUTION: FAILURE TO FOLLOW THESE PRECAUTIONS COULD RESULT IN
PERSONAL INJURY, AND/OR DAMAGE TO PROPERTY.

5
Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
2. Use personal protective equipment. Always wear eye protection. Safety
equipment such as dust mask, non-skid safety shoes, hearing protection
and a workshop apron capable of stopping small abrasive or workpiece
fragments.
3. Avoid accidental starting. Ensure the switch is in the off position before
plugging in. Carrying power tools with your finger on the switch or plugging
in power tools that have the switch on invites accidents.
4. Remove any adjusting key or wrench before turning the power tool on. A
wrench or a key left attached to a rotating part of the power tool may
result in personal injury.
5. Do not overreach. Keep proper footing and balance at all times. This
enables better control of the power tool in unexpected situations. Dress
properly. Do not wear loose clothing or jewellery.
6. Keep your hair, clothing and gloves away from moving parts. Loose
clothes, jewellery or long hair can be caught in moving parts.Keep the
work area clean and tidy.
7. This tool vibrates with use. Vibration may be harmful to your hands or arms.
Stop using the tool if discomfort, a tingling feeling or pain occurs. Seek
medical advice before resuming use.
8. Hold the power tool by insulated gripping surfaces only, when performing
an operation where the cutting tool could contact hidden wiring or its own
cable. Contacting a live wire may make exposed parts of the power tool
live and give the operator an electric shock.
9. Never lay a power tool down until it has come to a complete standstill. The
rotating accessory may grab the surface and pull the tool out of your
control.
10. Do not run the power tool while carrying it at your side. Accidental contact
with a spinning accessory could snag on clothing and pull the tool to your
body.
11. Regularly clean the power tool’s air vents. The motor fan will draw dust
inside the housing and accumulation of material could cause electrical
hazards.
12. Avoid operator fatigue. Stop the power tool at regular intervals for a short
break to rest hands and arms.
13. Maintain your tools. Keep all handles and grips dry and clean.

6
Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
ANGLE GRINDER SAFETY INSTRUCTIONS
1. Before starting work, always consider the following: The use of hand held
angle grinders for grinding and cutting operations can present risks to the
user. Full observation of the safety instructions in this user guide is essential.
2. Before undertaking grinding or cutting operations, always consider the
following: Is the grinding/cutting work necessary? Could a different tool be
used with less risk? (e.g. a fixed controlled cutting/grinding machine). Can
the work be sensibly positioned, secured and accessed so the operator
can maintain adequate control of the tool, taking into account, for
example the possible hazards associated with potential snatch/jamming of
a cutting disc. Is the cutting task too large for a hand held tool? If in doubt,
use an alternative lower risk solution or refer to qualified trade personnel.
3. Always use the correct tool for the job. Always assess the job. You should
never force a small angle grinder to do the job of a heavy tool. Do not use
tools for purposes not intended.
4. Always position the power cable clear of the spinning disc. If you loose
control, the cable may be cut or snagged and you hand drawn onto the
spinning disc.
5. Start up speed. Always allow the angle grinder to run up to full operating
speed before applying it to the job.
6. Applying the disc to the workpiece. Never bump the angle grinder disc on
the workpiece, or let the disc hit any other objects while grinding.
7. Do not abuse the mains lead. Never carry the tool by the mains lead or pull
it to disconnect it from the mains socket. Keep the mains lead away from
heat, oil and sharp edges.
8. Secure the work. Use clamps, or vices to hold the workpiece. Failure to
secure the workpiece could result in serious injury.
9. Remove adjusting keys and wrenches. Form the habit of checking to see
that keys and adjusting wrenches are removed from the tool before
turning it on.
10. Use outdoor extension leads. When the tool is used outdoors, only use
extension leads intended for outdoor use. Always make sure that the
extension lead is correctly rated.
11. Check damaged parts. A guard or other parts that are damaged should
be properly repaired or replaced, by an authorised service centre, unless
otherwise indicated in this user guide. Have defective switches replaced
by an authorised service facility.

7
Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
12. Accessories. Only use the recommended accessories. Ensure that the
wheels and discs are fitted in accordance with the manufacturer’s
instructions.
13. Only use discs that comply with EN12413 or EN13236. Make sure that the
disc used is suitable for the no load speed of the angle grinder. See
Specifications on page 16. Check that the speed marked on the wheel
dimensions are compatible with the grinder. Check that discs are
specifically for hand held angle grinder use.
14. Sparks and particles. Ensure that sparks and particles resulting from use do
not create a hazard, Use screens where appropriate.
15. Personal protective equipment. Always use protective safety glasses and
hearing protectors. Use other protective equipment such as gloves, apron
and helmet where necessary. If working at floor level, always wear knee
pads.
16. Switching off. The disc will continue to rotate for a few seconds after the
angle grinder is switched off. Always wait until the disc has completely
stopped before putting the angle grinder down.
17. Use the disc guard. Do not use the angle grinder without the disc guard.
Make sure that the guard is securely fitted and positioned for maximum
safety before operating the angle grinder. Always use the correct guard for
cutting or grinding work as described in this manual.
18. The grinding surface of depressed centre wheels must be mounted below
the plane of the guard lip. An improperly mounted wheel that projects
above the plane of the guard lip cannot be adequately protected.
19. Holding the angle grinder. Always hold the angle grinder with both hands.
Ensure that the workpiece is kept at waist height where possible. Never use
the angle grinder between the legs whilst sitting on the floor.
20. Feed direction. For cutting, always feed the disc into the work so that an
upcutting action is achieved.
21. Spindle lock. Do not operate the spindle lock while the spindle is still
spinning.
22. Always take care to avoid kickback by maintaining a firm grip of the tool
and positioning your body and arm to resist kickback forces. Always use
the auxiliary handle for maximum control.
23. Never position your hand close to the rotating parts and take special care
when working in corners or with sharp edges, or any situation where the
disc could snag.

8
Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
DISC SAFETY INSTRUCTIONS
1. Disc speed. Check the speed of the disc before fitting to your angle
grinder. Never use a disc with a rpm speed less than the rpm speed of your
angle grinder. See specification on page 16.
2. The outside diameter and thickness of your accessories must be within the
capacity rating of the power tool. The correct size accessories can be
correctly guarded and controlled.
3. Inspect the disc before fitting. Never use a disc that is chipped, cracked or
damaged. Fragments from a broken or damaged disc can cause serious
injury. Make sure that defective discs are destroyed and not used.
4. Handling and mounting discs. Bonded abrasive products are breakable
and shall therefore be handled with utmost care. The use of damaged or
improperly mounted or used abrasive products is dangerous and can
cause serious injuries.
5. Disc usage. Always refer to the label for specified usage and observe the
safety information. Do not use for purposes other than specified. Discs for
wet cutting applications must not be used with this angle grinder.
6. Use the correct disc. Always use the correct disc for it’s intended task. Using
the incorrect disc can cause serious injury.
7. Using the disc. Allow the disc and tool to do the work. Never force the disc
onto the workpiece as this could cause kickback and/or shatter the disc
causing serious injury. Kickback can occur in the event of a disc jam.
8. Cutting discs. Do not use cutting discs for side grinding. Do not put
sideways pressure on cutting discs.
9. Do not use reducing bushes. Do not use separate reducing bushes or
adapters to adapt large hole abrasive wheels. Do not force a disc onto a
machine or alter the size of the arbor hole.
10. Never use a damaged disc. Inspect each disc before each use for chips,
cracks, excess wear. If the tool or accessory is dropped, inspect for
damage or install a new accessory. After fitting the accessory, position
yourself away from the plane of the rotating accessory and run the tool at
full speed. damages discs are likely to break apart during this test.
11. Handling and storing discs.Abrasive products shall be handled and
transported with care. Abrasive products shall be stored in such a manner
that they are not subjected to mechanical damage and harmful
environmental influences.
12. Always use undamaged mounting flanges that are of the correct size and
shape for your cutting or grinding disc. Proper flanges support the disc and
reduce the possibility of breakage.

9
Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
ELECTRICAL CONNECTIONS
Before switching the product on, make sure that the voltage of your electricity supply is
the same as that indicated on the rating plate. This product is designed to operate on
230VAC 50Hz. Connecting it to any other power source may cause damage.
This product may be fitted with a non-rewireable plug. If it is necessary to change the
fuse in the plug, the fuse cover must be refitted. If the fuse cover becomes lost or
damaged, the plug must not be used until a suitable replacement is obtained.
If the plug has to be changed because it is not suitable for your socket, or due to
damage, it should be cut off and a replacement fitted, following the wiring instructions
shown below. The old plug must be disposed of safely, as insertion into a mains socket
could cause an electrical hazard.
If the colours of the wires in the power cable of this product do not correspond with the
markings on the terminals of your plug, proceed as follows.
• The wire which is coloured Blue must be connected to the terminal which is
marked N.
• The wire which is coloured Brown must be connected to the terminal which is
marked L.
We strongly recommend that this machine is connected to the mains supply via a
Residual Current Device (RCD)
If in any doubt, consult a qualified electrician. DO NOT attempt any repairs yourself.
This symbol indicates that this is a Class II product, and does not
require an earth connection.
WARNING! Read these electrical safety instructions thoroughly
before connecting the product to the mains supply.
WARNING! The wires in the power cable of this product are
coloured in accordance with the following code:
Blue = Neutral Brown = Live
Plug must be BS1363/A approved.
Always fit a 13 Amp fuse.
Ensure that the outer sheath of the cable is firmly held by the clamp
Neutral
(Blue)
Live
(Brown)

10
Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
OVERVIEW
When unpacking, check for damage or shortages etc. Any found should be
reported to your CLARKE dealer where the appliance was originally
purchased. This CON1050B is supplied with the following loose components:
•2xDiscGuards
• 1 x Grinding Disc
• 1 x Pin Spanner
• 1 x Side Handle
• 2 x Securing Flanges
NO DESCRIPTION NO DESCRIPTION
1 Spindle Lock Button 5 Air vents
2 Grinding/Cutting Disc 6 Trigger
3 Disc Guard 7 Trigger Safety Lock Button
4 Side handle

11
Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
BEFORE USE
FITTING/ADJUSTING THE DISC GUARD
1. Slide the disc guard into place as
shown.
2. Rotate the disc guard to the
required position and secure by
tightening the cap head screw
using the hexagonal key supplied.
3. Ensure the disc guard is securely
fitted before using the grinder.
FITTING/REMOVING A DISC
Make sure the correct disc guard is
fitted before you fit any cutting/
grinding disc.
1. Press and hold the spindle lock
button.
• You may need to turn the
spindle by hand to fully engage
the spindle lock.
2. Use the pin spanner supplied to
remove the outer flange.
3. Ensure the inner flange is fitted correctly with the raised circular section
pointing outwards as shown and the flat section on the opposite side
engages with the flat section on the spindle.
WARNING: MAKE SURE THAT THE ANGLE GRINDER IS SWITCHED OFF AND
UNPLUGGED FROM THE MAINS SUPPLY BEFORE FITTING OR REMOVING
ANY ACCESSORIES. ENSURE THE CORRECT GUARD IS FITTED FOR THE DISC
BEING USED.
WARNING: THE DISC GUARD SHOULD BE FITTED SO THAT IT PROVIDES
MAXIMUM PROTECTION TO THE USER WHEN IN THE WORKING POSITION.
WARNING: MAKE SURE THAT THE ANGLE GRINDER IS SWITCHED OFF AND
UNPLUGGED FROM THE MAINS SUPPLY BEFORE FITTING OR REMOVING
ANY ACCESSORIES.

12
Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
4. Place the grinding disc over the spindle and on top of the inner flange.
• If the grinding wheel supplied is a depressed centre type, mount it as
shown, i.e.with the depressed centre (printed side) towards the
machine.
• For standard discs make sure that the raised section of the outer
flange is pointing towards the disc.
5. Screw on the outer flange with the centre boss facing inwards so as to sit
inside the aperture of the disc. Tighten securely with the pin spanner.
• When using thin discs, the outer flange washer can be reversed so
that the raised section is pointing away from the disc.
6. Press and hold the spindle lock and use the pin spanner to tighten the
outer flange. Care should be taken also NOT to overtighten the outer
flange.
FITTING THE SIDE HANDLE
1. Fit the side handle by screwing it
into the threaded hole on either
the left or right hand side of the
angle grinder.

13
Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
OPERATION
THE ON/OFF SWITCH
1. To start the angle grinder, depress
the safety button and squeeze
the trigger.
• The disc will start instantly.
Always maintain a firm grip with
both hands.
2. To stop the angle grinder, release
the trigger.
CUTTING TIPS
• Do not force the disc through the material. Work with a feed rate
that is suited to the material being cut.
• Do not subject the cutting disc to sideways pressure.
WARNING: FRAGMENTS FROM A BROKEN/DETACHED DISC CAN CAUSE
SERIOUS INJURY.
WARNING: WHEN USING CUTTING DISCS, DO NOT STAND DIRECTLY IN
LINE WITH THE ROTATING DISC.
WARNING: DO NOT PUT SIDEWAYS PRESSURE ON CUTTING DISCS.
WARNING: ENSURE THAT THE WORKING POSITION ADOPTED DOES NOT
CAUSE OPERATOR FATIGUE WHICH MAY LEAD TO LOSS OF CONTROL OF
THE CUTTING DISC AND IMPACT/SNATCH WITH SURROUNDING OBJECTS/
MATERIALS.
WARNING: ENSURE THE INTENDED CUTTING PATH IS CLEAR AND WITH
SUFFICIENT CLEARANCE BETWEEN SURROUNDING OBJECTS.
WARNING: WHEN CUTTING, KEEP THE ANGLE GRINDER STRAIGHT TO
PREVENT SNATCHING OR JAMMING OBJECTS.
WARNING: ALWAYS FIT THE CORRECT GUARD ACCORDING TO WHETHER
A CUTTING OR GRINDING DISC IS BEING USED. REFER TO PAGE 14.
WARNING: THE DISC WILL CONTINUE TO ROTATE FOR A FEW SECONDS
AFTER THE TRIGGER HAS BEEN RELEASED.

14
Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
• The direction of the cutting motion is important. Always feed the
cutting disc into the work so that it cuts in an upward direction. If you
do not do this It can result in the disc climbing out of the cut in an
uncontrolled manner and may lead to loss of control or serious injury.
• Whenever a new disc has been fitted, always run the grinder at no
load speed to check for irregularities before starting work.
GRINDING TIPS
• The key to efficient grinding is to control the pressure and surface
contact between the grinding disc and the workpiece.
• Flat surfaces are ground at an acute angle, usually 15 to 30 degrees
to the workpiece. Too great an angle causes concentration of
pressure on a small area which may gouge, or burn the workpiece.
• Allow the disc to reach full speed before grinding.
• Avoid overloading the angle grinder. If it becomes hot when being
used, allow it to run for a few minutes under no-load conditions.
SELECTING THE CORRECT GUARD
A open and a closed guard is
supplied with the CON1050B.
The “open” guard is for grinding and
the “closed” one is for cutting.
The open guard should be used with
type 27, 28 and 29 discs as follows;
• Type 27 - Depressed centre
grinding wheels
• Type 28 - Depressed centre
grinding wheels cone shaped
• Type 29 - Depressed centre semi-flexible wheels
The closed guard should be used with type 1, 41 & 42 discs as follows;
• Type 1 - Straight grinding wheels
• Type 41 - Flat cutting off wheels
• Type 42 - Depressed centre cutting off wheels.
WARNING: WHEN GRINDING, ONLY USE DISCS SPECIFICALLY DESIGNED
FOR GRINDING. YOU MUST NEVER USE CUTTING DISCS TO GRIND ANY
MATERIAL.

15
Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
SUITABLE ABRASIVE AND CUTTING DISCS
The following Clarke discs are suitable for use with the CON1050B. Always use
the correct disc and guard type for its intended task.
MAINTENANCE
GENERAL MAINTENANCE
1. Always have your angle grinder inspected and maintained by qualified
service personnel. Do not attempt to repair the angle grinder unless you
are qualified to do so.
2. Make sure that all nuts, bolts and screws are tight and secure.
3. Check the side handle and the guard for damage.
4. Always have any damaged, or worn parts repaired or replaced.
5. Ensure the grinding wheel or cutting disc is perfectly sound, free from
cracks or damage.
6. Inspect the power cable to ensure it is sound and free from cracks or bare
wires etc.
CLEANING
To maintain the best possible performance from your angle grinder, it must be
kept clean.
1. Ensure all air ventilation slots are clear, (use compressed air to clean the
machine if possible. Always wear protective goggles when cleaning with
compressed air).
2. Clean the exterior of the machine with a soft cleaning cloth. Never use any
chemicals or harsh abrasives. Avoid using solvents when cleaning plastic
parts, which may be susceptible to damage from various types of
commercial solvents.
Use Model No Diameter Bore Part No
Cutting & Grinding PD1 (plasma) 115mm 22mm 3052050
Metal Cutting ----------------- 115mm 22mm 6470775
Metal Grinding ----------------- 115mm 22mm 6470705
Masonry Cutting ----------------- 115mm 22mm 6470735

16
Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
SPECIFICATIONS
Model Number CON1050B
Dimensions (L x W x H) 362 x 137 x 105 mm
Weight 2.3 kg
Input Power 1050 W
Disc Diameter 115 mm
Disc Bore 22 mm
Spindle Thread Size M14
No Load Speed 11,500 rpm
Sound Pressure Level (LpA dB) 93 dB(A)
Sound Power Level (LwA dB) 104 dB(A)
Vibration Levels 24.44 m/s2(Main Handle)

17
Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
PARTS LIST & DIAGRAM

18
Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
PARTS LIST & DIAGRAM
No Description No Description
1OuterFlange 28Screw
2 Cutting/Grinding Disc 29 Retaining Plate
3 Inner Flange 30 Round Pin
4 Clamp Screw 31 Motor Fan
5 Square Clamp Nut 32 Motor Armature
6 Machine Screw 33 n/a
7 Spring Washer 34 Housing Screw
8 Flat Washer 35 Motor Stator
9 Spindle 36 Motor Bearing
10 Spindle Housing 37 Motor Housing
11 Bearing 38 Brush Holder
12 Bearing Platten 39 Screw
13 Screw 40 Carbon Brush
14 Drive Gear 41 Disc Guard
15 Circlip 42 Housing Screw (F)
16 Bush 43 Rear Casing (R/H)
17 Spring 44 Housing Screw (R)
18 Machine Screw 45 Cable Entry
19 Spindle Lock Button 46 Power Cable
20 Locking Peg 47 Spring
21 Drive Housing 48 Cable Clamp
22 Side Handle 49 Capacitor
23 Nut 50 Screw
24 Spring Washer 51 Trigger Assembly
25 Spur Gear 52 Rear Casing (L/H)
26 Bearing 53 Pin Wrench
27 Gasket

19
Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
DECLARATION OF CONFORMITY