Challenge Xtreme MD3215M User manual

ORIGINAL INSTRUCTIONS
150mm
BENCH GRINDER
MD3215M

HELPLINE NO 08454 505299
2
ORIGINAL INSTRUCTIONS
GENERAL SAFETY
INSTRUCTIONS
INTRODUCTION
Thank you for purchasing a
CHALLENGE XTREME 150mm Bench
Grinder. We would like you to be
completely satisfied with your new
product and hope you get many
years of satisfaction out of this tool.
The bench grinder is intended for grinding
and sharpening metal tools such as drills,
chisels etc. and metal items. The device is not
intended for commercial use. Any other use or
modification to the device shall be considered
as improper use and could give rise to
considerable dangers.
The manufacturer will not accept
liability for loss or damage arising
from improper use.
When using electric tools basic safety
precautions should always be
followed to reduce the risk of fire,
electric shock and personal injury
including the following.
Read all these instructions before
attempting to operate this product
and save these instructions.
1. Keep work area clear
Cluttered areas and benches invite injuries.
2. Consider work area environment
Do not expose tools to rain.
Do not use tools in damp or wet locations.
Keep work area well lit.
Do not use tools in the presence of
flammable liquids or gases.
3. Guard against electric shock
Avoid body contact with earthed or
grounded surfaces {e.g. pipes, radiators,
ranges, refrigerators).
4. Keep other persons away
Do not let persons, especially children, not
involved in the work touch the tool or the
extension cord and keep them away from
the work area.
5. Store idle tools
When not in use, tools should be stored in
a dry locked-up place, out of reach of
children.
6. Do not force the tool
It will do the job better and safer at the rate
for which it was intended.
7. Use the right tool
Do not force small tools to do the job of a
heavy duty tool.
Do not use tools for purposes not intended;
for example do not use circular saws to cut
tree limbs or logs.
8. Dress properly
Do not wear loose clothing or jewellery,
they can be caught in moving parts.
Non-skid footwear is recommended
when working outdoors.
Wear protective hair covering to contain
long hair.
9. Use protective equipment
Use safety glasses.
Use face or dust mask if working
operations create dust.
10. Do not abuse the cord
Never yank the cord to disconnect it from
the socket. Keep the cord away from heat,
oil and sharp edges.
11. Secure work
Where possible use damps or a vice to
hold the work. It is safer than using your
hand.
12. Do not overreach
Keep proper footing and balance at all
times.

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ORIGINAL INSTRUCTIONS
13. Maintain tools with care
Keep cutting tools sharp and clean for
better and safer performance.
Follow instruction for lubricating and
changing accessories.
Inspect tool cords periodically and if
damaged have them repaired by an
authorized service facility.
Inspect extension cords periodically and
replace if damaged.
Keep handles dry, clean and free from
oil and grease.
14. Disconnect tools
When not in use, before servicing and
when changing accessories such as
blades, bits and cutters, disconnect tools
from the power supply.
15. 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.
16. Avoid unintentional starting
Ensure switch is in “off” position when
plugging in.
17. Use outdoor extension leads
When the tool is used outdoors, use only
extension cords intended for outdoor use
and so marked.
18. Stay alert
Watch what you are doing, use common
sense and do not operate the tool when
you are tired.
19. Check damaged parts
Before further use of tool, it should be
carefully checked to determine that it
will operate properly and perform its
intended function.
Check for alignment of moving parts,
binding of moving parts, breakage of
parts, mounting and any other conditions
that may affect its operation.
A guard or other part that is damaged
should be properly repaired or replaced
by an authorized service centre unless
otherwise indicated in this instruction
manual.
Have defective switches replaced by an
authorized service centre.
20. Warning
The use of any accessory or attachment
other than one recommended in this
instruction manual may present a risk of
personal injury.
21. Have your tool repaired by
a qualified person
This electric tool complies with the relevant
safety rules. Repairs should only be carried
out by qualified persons using original
spare parts, otherwise this may result in
considerable danger to the user.
22. If the replacement of the supply
cord is necessary, this has to be
done by the manufacturer or his
agent in order to avoid a safety
hazard.
ADDITIONAL SAFETY RULES
Do not use damaged or misshapen grinding
wheels or brushes;
Use only grinding wheels recommended by the
manufacturer which have a marked speed
equal to or greater than the speed marked on
the nameplate of the tool;
Adjust the spark arrestor frequently so as to
compensate for wear of the wheel, keep the
distance between the spark arrestor and the
wheel as small as possible and in any case not
greater than 2mm;

HELPLINE NO 08454 505299
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ORIGINAL INSTRUCTIONS
8. Periodically check that all nuts, bolts and
other fixings are properly tightened.
9. Do not use a wheel that has received a
blow, especially to the side of the wheel.
10. Replace a cracked or suspect wheel.
11. Always allow a new wheel to run for a
few minutes at full speed before using it.
Stand to one side at start up.
12. Check that the wheel rotates freely each
time before start up.
13. Do not use the grinder unless all the
guards are properly fitted and secure.
14. Check that the tool rests are properly
adjusted before commencing use.
15. Do not overload the grinder. Allow the
grinder to run at full speed, or close to
full speed during use.
16. Never apply excessive pressure to the
wheel. It might shatter causing personal
injury.
17. Make sure that the wheel is not in
contact with the work when you start the
grinder.
18. When using the grinder, use safety
equipment including safety goggles or
shield, ear protection, dust mask and
protective clothing including safety
gloves.
19. The adjustment of the spark arrestor
shall be made frequently ,so as to
compensate the wear of the wheel,
keeping the distance between the guard
and the wheel as small as possible, but
in any case not greater than 2 mm.
20. The adjustment of the work rest shall be
done gradually so as to compensate the
wear of the wheel, keeping the distance
between the work rest and the wheel as
small as possible, but in any case not
greater than 2 mm.
Instruction for the safe use, handling and
storage of abrasive wheels taking into
account the requirements of the CEN standard
for abrasive products for the type of tool
covered by this standard. It is assumed that
wheels will not be dressed.
If wheel dressing is intended then suitable
precautions should be taken;
If the grinder is intended to be bolted down,
an instruction requesting it to be secured to
a suitable work surface.
For bench grinders and combined bench
grinders equipped with straight-sided
flanges, the recommended values of the
thickness T and the diameter of the hole
see the technical data;
For combined bench grinders, to always
keep the brush assembled on the spindle
in order to limit the risk of contact with the
rotating spindle.
ADDITIONAL SAFETY
INSTRUCTIONS FOR YOUR
BENCH GRINDERS
1. Always remove the plug from the mains
socket before making any adjustments
or maintenance, including changing the
wheel.
2. Always wear eye protection and check
that the eye shields on the grinder are
properly adjusted.
3. Always turn the grinder off when it is not
in use and never leave it unattended
without first switching off and removing
the power plug. Never leave the grinder
until the grinding wheels have come to a
complete stop.
4. Make sure that any replacement wheel
is rated at 3000RPM or higher.
5. Do not let anyone under 18 years operate
this tool.
6. Rags, cloths, cord, string and the like
should never be left around the work area.
7. If you are interrupted when operating the
tool, complete the process and switch off
before looking up.

HELPLINE NO 08454 505299
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ORIGINAL INSTRUCTIONS
SYMBOLS
To reduce the risk of injury,
user must read instruction
manual
Warning
Wear eye protection
Wear ear protection
Wear dust mask
Waste electrical products
should not be disposed
of with household waste.
Please recycle where facilities
exist. Check with your local
authorities or retailer for
recycling advice.

HELPLINE NO 08454 505299
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ORIGINAL INSTRUCTIONS
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HELPLINE NO 08454 505299
ORIGINAL INSTRUCTIONS
COMPONENT LIST
1. Adjusting guard plate
2. Eye shield
3. Grinding wheel
4. Work rest
5. Work rest fixing knob
6. On/Off switch
7. Wheel guard
Not all the accessories illustrated or described are included in standarddelivery.
TECHNICAL DATA
Rated voltage 230-240V~50Hz
Rated power 150W (S2: 30min)
Rated noload speed 2950/min
Wheel size Ø150 x 16 x Ø12.7mm (36/60grit)
Weight 5.5 kg
ACCESSORIES
Work rest 2set
Eye shields 2set
Discs (preassembled) 2pcs
We recommend that you purchase your accessories from the same store that sold you the
tool. Use good quality accessories markedwithawell-known brandname. Choose the type
according to the work you intend to undertake. Refer to the accessory packaging for further
details. Store personnel can assist you and offer advice.

HELPLINE NO 08454 505299
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ORIGINAL INSTRUCTIONS
2. SETT ING OF TOOL REST AND
SPARK ARRESTER BRACKET
(See Fig. C, D)
The tool rest and spark protection
assembly’s spark arrester bracket have to
be set from time to time to compensate for
grinding wheel wear. The gap between tool
rest and wheel should not be more than
2mm and not more than 2mm between
wheel and spark arrester bracket.
3. COMMISSIONING
This double bench grinder is used for rough
grinding. Please note that it is not intended
for continuous operation. To prevent
possible overloading/overheating it should
not be operated for more than 15 - 30
minutes at a time. Let grinder cool down
before operating again.
Apply moderate pressure when holding
the workpiece against the grinding wheel.
Remember that the metal heats up by the
grinding. The workpiece should therefore
regularly cooled by submerging it in cold
water. The dry grinding wheels of this bench
grinder are suitable for rough grinding only.
Before using the tool, read the
instruction book carefully.
OPERATING INSTRUCTIONS
For reasons of packing the spark protection
assembly is not factory installed and needs
to be user installed before operation of the
machine. Fig. A shows the components of
the spark protection assembly and how they
are installed to the grinding wheel cover on
the right hand side.
Installation to the left hand side wheel cover
is similar.
1. INSTALLATION OF SPARK
PROTECTION ASSEMBLY
(See Fig. A, B)
Fig. A
Fig. B
a: head screw
b: hexagon nut
c: lock washer
d: head bolt
Fig. C
Fig. D

HELPLINE NO 08454 505299
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ORIGINAL INSTRUCTIONS
defects or cracks. For the resonance test,
let the wheel hang from a piece of string
and tap lightly with a screwdriver handle or
similar (no metal!). If the sound is not clear,
but rather dull and hollow the wheel is likely
to be damaged and should not be used. The
grinding wheel should slide onto the arbor
easily.
Forcing it on the arbor, e.g. by striking with
a hammer, may break the wheel and is
not permissible for safety reasons. For the
same reason the drilling out of too small an
arbor bore is not permitted.
After the new wheel is mounted it should
be left running idle for at least 5 minutes.
Screen off workplace to prevent damage in
case the wheel breaks and stay out of
the danger zone.
8. CHANGING THE GRINDING
WHEEL (See Fig. F)
If the wheel needs replacement because it
is worn down or you want to use a different
type of grinding wheel, the
mounted wheel is to be removed.
Please make sure that the hexagon nut
on the left side of the machine has a lefthanded
thread, i.e. must be turned in a
clockwise direction to undo.
Installation to the right hand side wheel is
similar. (See Fig. F)
4. SIZE OF PART TO BE MACHINED
The part to be machined must at least
be large enough to hold securely in both
hands.
A larger work piece must also be able to
be held securely in and must not slip from
the work piece support during the grinding
process. When selecting the size of the
work pieces, please bear in mind the
grinding capacity of your grinding machine.
5. DRILL GRINDING
The work piece support on the right grinding
wheel is fitted with a trough for drill grinding.
After switching on the double grinding
machine hold the drill to be ground with both
hands and push it into the trough. Then
carefully guide the tip of the drill towards
the grinding wheel and slowly turn the drill
throughout the entire grinding process.
6. SELECTING A SUITABLE
GRINDING WHEEL
This double bench grinder is factory
fitted with two different normal corundum
grinding wheels. On one side a wheel with
a coarse grit is mounted, on the other side
a fine grit grinding wheel. As a rule, the
bulk of the arising grinding works such as
the grinding of various axes, drill bits and
screw drivers can be accomplished with this
grinding wheel. For other jobs, especially
the sharpening of knifes as well as the
machining of hardened steel, a suitable
grinding wheel according to the table should
be selected. Please keep in mind that there
is no grinding wheel type suitable for all
different requirements and the choice of the
right grinding wheel is critical for the result
of your work.
7. GRINDING WHEEL CHECK
(See Fig. E)
Before a new grinding wheel is mounted it
should be subjected to a visual inspection
and a resonance test, to detect any possible
Fig. E

HELPLINE NO 08454 505299
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ORIGINAL INSTRUCTIONS
MAINTENANCE
Remove the plug from the socket
before carrying out any adjustment,
servicing or maintenance.
There are no user serviceable parts in your
power tool. Never use water or chemical
cleaners to clean your power tool. Wipe
clean with a dry cloth. Always store your
power tool in a dry place. Keep the motor
ventilation slots clean. Keep all working
controls free of dust. Occasionally you may
see sparks through the ventilation slots.
This is normal and will not damage your
power tool.
Fig. F

HELPLINE NO 08454 505299
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ORIGINAL INSTRUCTIONS
This product is selected for DOMESTICUSEONLY and not for business use. This product is
guaranteed against manufacturing defects for a period of 12 months. This does not cover the
product where the fault is due to misuse, abuse, use in contravention ofthe instructions, orwhere
the product has beenthe subject of unauthorised modifications or alterations, or has been the
subject of commercial use. In the event of a problemwith the product within the guarantee period
please contact the service centre forassistance on08454 505299. Ifthe itemis shown to have an
inherent defect present at the time of sale, you will be provided with a replacement. Your statutory
rights remain unaffected.
Guarantor: Home Retail Group, MK9 2NW
DISPOSAL
GUARANTEE
Your Bench Grinder is supplied with a fitted plug, however if you should need to fit a new plug
follow the instruction below.
IMPORTANT
The wires in the mains lead are coloured in accordance with the following code:
Blue = Neutral Brown = Live
Green/Yellow = Earth
As the colours of the wires in the mains lead of this appliance may not correspond with the
coloured markings identifying the terminals in your plug, proceed as follows:
The wire which is coloured blue must be connected to the terminal which is marked with N.
The wire which is coloured brown must be connected to the terminal which is marked with the
letter L.
The green/yellow wire to the earth terminal marked Eor .
If a 13 AMP (BS 1363/A) Plug is used, a 13 AMP Fuse must be fitted, or if any other type of plug
is used a 13 AMP Fuse must be fitted, either in the Plug or Adaptor, or on the Distribution Board.
NOTE: If a moulded plug is fitted and has to be removed take great care in disposing of the
plug and severed cable, it must be destroyed to prevent engaging into a socket.
If the supply cord is damaged it must be replaced by a service agent or a similarly qualified
person in order to avoid hazard.
PLUG REPLACEMENT
Do not dispose of electrical appliances with your domestic waste!
The packaging comprises exclusively environmentally- friendly material. Dispose of it in
your local recycling containers.
BLUE
(NEUTRAL)
N
OUTER
SLEEVE
13 AMP
FUSE
BROWN
(LIVE)
L
CABLE GRIP
31 PMA
Green/Yellow
(EARTH)
E

DOCUMENT NO: 1.1
ISSUE: MS
DATR: 2012-02-15
APPROVED: LW
(0123)
EC Declaration of Conformity Year of 1st Issue .
12
Argos Ltd
489-499 Avebury Boulevard
Saxon Gate West
Milton Keynes
Buckinghamshire
MK9 2NW
We hereby certify that the product stipulated above complies with all the relevant provisions of the following EC new approach directive/s.
This declaration of conformity is issued under the sole responsibility of the manufacturer
Type of Product: 150mm Bench Grinder
Model Number: MD3215M
Cat / Article Number: 9000025
Product Description:
Voltage：230-240V~50Hz
Rated power: 150W (S2: 30min)
Rated no load speed: 2950/min
Wheel size: Ø150 x 16 x Ø12.7mm (36/60grit)
Weight: 5.5 kg
Photograph:
Applicable EC Directives
2006/42/EC (MD)
2004/108/EC (EMC)
1999/5/EC (R&TTE)
2006/95/EC (LVD)
2009/105/EC (Pressure)
2000/14/EC Annex , 2005/88/EC
2009/125/EC (ErP)
2009/48/EC (Toys)
L
WA
=76dB(A), L
PA
=63dB(A), K=3dB(A)
2009/142/EC (Gas)
89/106/EEC (Construction)
//EC (Others)
Applicable
Harmonized Standards:
Report Date
Verification of conformity
Certificate Notified Body
EN 61029-1/A11：2010
EN 61029-2-4：2011
2011.11.18
GS TUV
EN 55014-1/A1: 2009
EN 55014-2/A2: 2008
EN 61000-3-2/A2: 2009
EN 61000-3-3: 2008
2011.03 18
EMC TUV
EC Type approval certificate number
Issued number: 1.0
Issued on : 2012-6-26
Signed :
Creator: Max Shi
Name : Roger Panton-Kent
Position: QA
Position: Head of Quality Assurance