Clarke CBS250B User manual

OPERATION & MAINTENANCE
INSTRUCTIONS
LS0718 - ISS 1
ORIGINAL INSTRUCTIONS
BAND SAW
MODEL NO: CBS250B
PART NO: 6460140

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INTRODUCTION
Thank you for purchasing this CLARKE band saw.
This band saw is designed to cut wood or other materials by means of a
revolving endless saw blade which is carried on two band wheels. It has an
adjustable table to support and position the work piece that is fed by hand
against the saw band.
Before attempting to operate the machine, it is essential that you read this
manual thoroughly and carefully follow all instructions given.
GUARANTEE
This CLARKE product is guaranteed against faulty manufacture for a period of
12 months from the date of purchase. Please keep your receipt 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 PROTECTION
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 but according to the laws governing Waste Electrical and
Electronic Equipment (WEEE) at a recognised disposal facility.

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SAFETY PRECAUTIONS
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 lead 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.
WARNING: 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

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• 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. Connect dust extraction equipment
• If the tool is provided with a connection for dust extraction and
collecting equipment, ensure these are connected and properly used.
11. 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.
12. Secure work
• Where possible use clamps or a vice to hold the work. It is safer than
using your hand.
13. Do not overreach
• Keep proper footing and balance at all times.
14. 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.
15. Disconnect tools
• When not in use, before servicing and when changing accessories such
as blades, bits and cutters, disconnect tools from the power supply.
16. 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.
17. Avoid unintentional starting
• Ensure switch is in “off' position when plugging in.
18. Use outdoor extension leads
• If the tool is used outdoors, use only extension leads intended for
outdoor use and so marked.

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19. Stay alert
• Watch what you are doing, use common sense and do not operate the
tool when you are tired.
20. 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.
• Have defective switches replaced by an authorized service centre.
• Do not use the tool if the switch does not turn it on and off.
21. Warning
• The use of any accessory or attachment other than one recommended
in this instruction manual may present a risk of personal injury.
22. 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.
ADDITIONAL
1. Position the fence on the lower side of the table when bevel-cutting with
the table inclined;
2. Use a suitable holding device when cutting round or irregular shaped
timber to prevent twisting of the work piece;
3. Do not to use saw blades which are damaged or deformed;
4. Do not to override the lockout and operate the tool, when the guards
protecting the saw blades is open;
5. Do not clean the saw blade whilst it is moving;
6. Wear gloves for handling the saw blade and rough material.
7. The push-stick should be used if the distance between the blade and rip
fence is less than approx 150 mm.

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SAFETY SYMBOLS
LIST OF CONTENTS.
Read the manual
and safety
instructions before
use
Eye protection
should be worn
Ear protection
should be worn
Dust mask should be
worn
HAZARD, Motor
gets hot
Main Box
Band Saw (c/w fitted blade) Fixings Pack
Table Table Insert (in Fixings Pack)
Parallel Fence Push Stick
Scale Rail Instruction manual
Mitre Guide
Stand Kit
4 x Leg c/w Rubber Feet 2 x Short Cross Member
2 x Long Beam Nuts, bolts, washers from fixings pack
2 x Short Beam 1 x 13mm / 10mm OE spanner
2 x Long Cross Member 1 x 3mm Hexagon Key

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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 Nor coloured Black.
• The wire which is coloured Brown must be connected to the terminal which is
marked Lor coloured Red.
• The wire which is coloured Yellow and Green must be connected to the terminal
which is marked E or or coloured Green.
.
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.
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 Yellow and Green = Earth
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)
Earth
(Green and Yellow)

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OVERVIEW

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ASSEMBLY
ASSEMBLE THE STAND
1. On a flat level surface, assemble 2
sub assemblies as shown.
• Parts required per assembly, 2
legs, 1 short beam, 1 short cross
member and 8 short round
head screws nuts and washers.
• Do not tighten nuts fully at this
stage.
NOTE: Beams and cross members fit
inside the legs. Screws are to
be fitted from the outside
with washers and nuts on the
inside.
2. Connect the two sub assemblies
together using 2 long cross
members, 2 long beams, and 8
short round head screws with nuts
and washers,
• Do not tighten nuts at this
stage.
NOTE: The long beams are fitted on
top of the short beams. Hex
head bolts are fitted from
the top with washers and
nuts on the underside.
3. Invert the stand and push on the
rubber feet.
4. Turn stand over onto its feet again
and only when satisfied that it is
completely stable, fully tighten all
nuts.

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MOUNT THE BAND SAW ON TO THE STAND
1. Lift the band saw on to the stand.
2. Use the 4 x M8x35 bolts, washers
and nuts supplied to attach the
band saw to the stand.
• Put the bolts through the base
of the saw from above,
• Install the washers and nuts on
the underside of the stand and
tighten to secure..
INSTALL THE SAW TABLE
1. Slide the table over the blade and
rest it on the quadrant support
below.
2. Secure the table from below as
shown, using 4 bolts and washers
supplied.
WARNING: WHEN YOU MOUNT THE BAND SAW ON TO THE STAND WE
RECOMMEND THAT YOU GET HELP BECAUSE OF THE WEIGHT OF THE
BANDSAW.

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3. Fit the table insert as shown.
• Always replace the table insert
when worn.
FIT THE GUIDE RAIL TO THE TABLE
1. Loosely screw 4 bolts and washers
into the bottom of the table as
shown,
2. Slide the guide rail onto the shafts
of the bolts
3. Tighten the bolts to secure the
guide rail in place.
CONNECTING TO A DUST COLLECTOR
This bandsaw is fitted with a dust port
to enable connection to a dust
collector.
• Outside Diameter 40 mm
• Inside Diameter 36 mm
The band saw is now ready to use.

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FUNCTIONS
SWITCHING ON/OFF
1. Press the green ON (I) button to
start the band saw.
2. Press the red OFF (O) button to
stop the band saw.
NOTE: The blade may continue to
rotate for a short time before
coming to a complete stop.
UPPER BLADE GUARD ADJUSTMENT
1. Rotate the blade guard
adjustment knob:
• Clockwise to raise the blade
guard.
• Anti-clockwise to lower the
blade guard.
NOTE: The blade guard should be
positioned as close as
possible to the top of the
material the blade is cutting.
USING THE FENCE
• The rip fence can be used on
both sides of the blade.The
scale indicates the distance
from the saw blade to the
fence.
1. Place the fence over the guide
rail. and into the required position.
and then press down the lock
lever to clamp the rip fence in
position.
WARNING: Always use a push stick when straight cutting small work
pieces using the fence;

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USING THE PUSH STICK
• The push-stick serves as an extension of the operators hand as
protection against accidentally touching the saw blade.
• The push-stick should be used if the distance between the blade and rip
fence is less than approx 150 mm.
• Always replace the push-stick if lost or damaged.
USING THE MITRE GAUGE
1. The mitre gauge is inserted into
the table slot from the front edge.
2. To set a mitre angle, loosen the
locking knob by turning it
counterclockwise.
3. Firmly tighten the locking knob to
secure the mitre gauge in
position.
TILTING THE TABLE
1. Loosen the table tilt clamp.
2. Adjust the table to the required
angle.
• We recommend that you use a
protractor to ensure accuracy.
3. Retighten the table tilt clamp.
NOTE: The scale and pointer can
be adjusted by loosening the
screw on the pointer.

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OPERATION
Before commencing work, ensure the work area is clean and tidy and the
bandsaw table is clear of tools etc. Plan your work carefully and set the
bandsaw up accordingly before switching on.
1. Check the blade is correctly tensioned before use (see page 17).
2. Set the upper blade guide as close as practical to the workpiece. This
provides the best safety for the operator and giving more accurate results
and greater control.
3. Switch on and allow the saw
blade to reach full speed before
proceeding.
• Use both hands to feed the
workpiece. The work must be
held flat on the table at all
times to prevent the blade from
binding
• Use a steady, even pressure,
just sufficient to keep the blade cutting.
• Always use the rip fence or mitre gauge where possible to eliminate any
sideways movement of the work. This is most important when the table is
tilted at an angle.
• Remember that the blade removes material during the cut creating a
gap called the ‘kerf’, which must be allowed for when cutting to exact
sizes. Plan your cut so that the kerf is the scrap side of the line you wish to
cut. Where necessary, allow a little more material for finishing.
• Always use a suitable holding device when cutting round or irregular
shaped timber to prevent twisting of the work piece.

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CHANGING THE SAW BLADE
REMOVING THE BLADE
1. Loosen the bolts shown and
remove the guide rail.
2. Open the upper and lower doors.
3. Slide the lower blade guard to the
left.
4. Remove tension from the blade
and remove the blade.
WARNING: DISCONNECT THE SAW FROM THE MAINS SUPPLY BEFORE
CHANGING THE BLADE.

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FITTING A BLADE
1. Slide the blade over the wheels,
NOTE: Turning the wheels as you do so makes this easier.
• Centre the blade on the rubber tyres of the wheels.
• Make sure the teeth point down on the right side.
2. Add a little tension to the blade.
3. Turn the upper wheel clockwise
by hand to make sure that the
blade tracks correctly on the
wheels.
• if not see “Tracking the Saw
Blade” on page 17.
4. Slide the lower blade guard to the
right.
5. Close and secure the doors.
6. Replace the guide rail.
WARNING: BLADES ARE NORMALLY SUPPLIED COILED, TAKE CARE WHEN
UNCOILING THE SAW BLADE AS THEY HAVE A TENDENCY TO SPRING
OPEN.

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ADJUSTING THE BLADE TENSION
1. Raise the upper blade guide fully.
2. Check the tension by pressing
with a finger against the side of
the blade, halfway between the
table and upper guide.
• The blade should not flex more
than 2 mm.
3. Turn the blade tension knob to
adjust tension.
• Turning the blade tension knob
clockwise will increase the
tension.
• Turning the blade tension knob
anticlockwise will decrease the
tension.
TRACKING THE SAW BLADE
If the saw blade does not run in the centre of the rubber tyre, the tracking
needs to be corrected by adjusting the tilt of the upper bandsaw wheel.
1. If required, open the upper and
lower doors.
CAUTION: TOO MUCH TENSION CAN CAUSE THE SAW BLADE TO BREAK.
TOO LITTLE TENSION CAN CAUSE THE BLADE TO MAKE IRREGULAR CUTS

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2. Loosen the tracking control lock
and manually rotate the upper
wheel, taking care of the sharp
blade
3. Turn the tracking control knob
clockwise or anticlockwise until
the saw blade tracks centrally on
the rubber tyre.
4. After adjusting, retighten the
tracking control lock and close
the doors.
ADJUST THE GUIDE/THRUST BEARINGS AND LOWER BLADE GUIDES
The guide/thrust bearings and the lower blade guides help keep the blade
tracking straight and correctly alligned during use. To adjust:
UPPER GUIDE BEARINGS
1. Loosen the two grub screws.
2. Adjust the bearings so that they
are approximately 0.5 mm from
the blade.
3. Retighten the grub screws.
REAR THRUST BEARING
1. Loosen the grub screw.
2. Adjust the bearing so that it is
approximately 0.5 mm from the
blade.
3. Retighten the grub screw.
LOWER BLADE GUIDES
1. Loosen the two grub screws.
2. Adjust the guides so that they are
approximately 0.5 mm from the
blade.
3. Retighten the grub screws.

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MAINTENANCE AND SERVICING
DAILY
1. Keep the machine clean.
2. Check the saw blade for missing teeth and cracks.
3. Open the top & bottom wheel covers and clean out all saw dust.
WEEKLY
1. Open the top & bottom wheel covers and clean out all saw dust with a
vacuum cleaner.
MONTHLY
1. Open the lower and upper door and check the condition of the wheels/
tyres and blade.
• If required clean the tyres.
2. Using an air line (wearing goggles) blow out the motor casing.
TRANSPORTING THE BANDSAW
• Always transport the tool with
the blade guard in the fully
lowered position.
WARNING: DO NOT USE GUARDS FOR HANDLING OR TRANSPORTATION

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PARTS DIAGRAMS