Clarke METALWORKER CBS 7MC Manual

OPERATION & MAINTENANCE
INSTRUCTIONS
GC0922 Rev 1
ORIGINAL INSTRUCTIONS
7” METAL CUTTING BANDSAW
MODEL NO: CBS7MC
PART NO: 6460123

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INTRODUCTION
Thank you for purchasing this CLARKE Bandsaw which is designed for DIY &
light industrial use.
Before attempting to operate the machine it is essential that you read this
manual thoroughly and carefully follow all instructions given. In doing so you
will ensure the safety of yourself and that of others around you and you can
look forward to the product giving you long and satisfactory service.
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
Recycle unwanted materials instead of disposing of them as waste. All
unwanted accessories and packaging should be sorted and taken to a
recycling centre for disposal in a manner which is compatible with the
environment.
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 but according to the laws governing Waste Electrical and
Electronic Equipment (WEEE) at a recognised disposal facility.

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SPECIFICATIONS
Weight 135kg
Dimensions Folded Down (L x W x H) 1220 x 495 x 1001mm
Dimensions Folded Up (L x W x H) 1220 x 495 x 1630mm
Table Height from Floor 610mm
Tilt Angle 0 - 45o
Maximum Cutting Capacity@0oHeight: 180mm
Width: 270mm
Maximum Cutting Capacity@45oHeight: 180mm
Width: 120mm
Throat/Cutting Width 335mm
Blade Speed (4 speeds) 22, 33, 45, 65m/min
Blade Size 2360 x 19 x 0.9mm - 6 tpi
Supply Cable Length 1900mm
Sound Power Level Measured (Lw) 85.8dB(A) whilst cutting
Operating Voltage 230V - 50Hz
Output Wattage 1100W
IP Rating IP20

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SAFETY SYMBOLS
Read the
manual
and safety
instructions
before use
Wear eye
protection
Wear
protective
mask
Wear ear
protection
Wear
protective
gloves
Disconnect
from Power
Supply
When Not
in Use
Warning:
Electricity
Warning:
Sharp
Blade
Warning:
Risk of
Trapping
Hand/
Fingers

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SAFETY WARNINGS
WORK ENVIRONMENT
1. Please read these instructions carefully and retain for future reference.
2. ALWAYS keep the work area clean and well lit. Cluttered and dark areas
invite accidents.
3. 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.
4. This machine is designed for indoor environments only and must not be
used for other purposes.
5. ALWAYS keep children and bystanders away while operating a power tool.
Anyone entering the work area must wear personal protective equipment
(PPE). Distractions can cause you to lose control and fragments of work or
a broken blade may fly away and cause injury.
6. ALWAYS store power tools correctly 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 power 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. ALWAYS position the power cable so that it cannot be inadvertently pulled
or pinched, and where it does not cause a trip hazard.
5. DO NOT use extension power cables.
6. Before cleaning or maintenance tasks, ALWAYS unplug the machine from
the power supply.
CAUTION: FAILURE TO FOLLOW THESE PRECAUTIONS COULD RESULT IN
PERSONAL INJURY, AND/OR DAMAGE TO PROPERTY.

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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.
2. ALWAYS use personal protective equipment (PPE). Wear eye protection,
safety equipment such as dust mask, non-slip 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. Plugging in power tools that have the switch in the on position
invites accidents.
4. ALWAYS remove any adjusting key or wrench before turning the power tool
on. A wrench or a key left attached to a moving 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.
6. Keep your hair and clothing away from moving parts. Loose clothes,
jewellery or long hair can be caught in moving parts.
7. AVOID operator fatigue. Stop the power tool at regular intervals for a short
break to rest hands and arms.
8. This machine must only be used by adults. Children SHOULD NOT be
allowed to play with this product.
POWER TOOL USE AND CARE
1. DO NOT force the machine. Use the correct power tool for your
application. It will do a better and safer job at the rate for which it was
designed.
2. DO NOT use the power tool if the switch does not turn it on or off. Any
power tool that cannot be controlled with the switch is dangerous and
must be repaired.
3. ALWAYS disconnect the power tool from the power supply before making
any adjustments, changing accessories, or storing the tool. These measures
will reduce the risk of the power tool starting accidently.
4. Store power tools out of the reach of children and DO NOT allow persons
unfamiliar with these instructions to operate the power tool. Power tools are
potentially dangerous in the hands of untrained users.
5. Maintain power tools in top condition. Keep tools/ machines clean for the
best and safest performance. Check for misalignment or binding of
moving parts, broken parts, or any condition that may affect the power

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tool’s operation. If damaged, have the power tool repaired before use.
Many accidents are caused by poorly maintained power tools. If in doubt,
DO NOT use the machine. Consult your local CLARKE dealer.
6. Machine cleanliness. DO NOT allow the ventilation slots in the machine/
motor to become blocked with dust.
7. Regularly clean the power tool’s air vents. The motor fan will draw dust
inside the housing and accumulation of material could cause electrical or
fire hazards.
8. Maintain your tools. Keep all handles and grips dry and clean.
SERVICING
1. When necessary, have your power tools serviced or repaired by a qualified
person using identical replacement parts (see pages 36-41). This will ensure
that the safety of the power tool is maintained.
ADDITIONAL PRECAUTIONS FOR BANDSAWS
1. ALWAYS check safety guards are in place and functioning correctly before
switching the machine on.
2. ALWAYS use the appropriate saw blade for the material being cut.
3. NEVER use the machine if the electric cable, plug or motor is in poor
condition.
4. NEVER touch the blade immediately after use, when changing the blade
always allow time for it to cool.
5. NEVER use bent or cracked blades. (Replacement blades are available
from your CLARKE dealer, see page 32).
6. When cutting round stock, use a suitable jig or fixture to keep the work from
turning.
7. ALWAYS ensure the blade is fully tightened and correctly adjusted before
use.
8. ALWAYS switch the machine off immediately the task is completed.

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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.
•TheBlue wire must be connected to the terminal which is marked Nor
coloured Black.
•TheBrown wire must be connected to the terminal which is marked Lor
coloured Red.
•TheYellow and Green wire 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.
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
Item Description Item Description
1 Blade Tension Handle 7 Feed ON/OFF Valve Lever
2 Blade Guide Adjustment Knob 8 Lubricant Pump ON/OFF Switch
3 Lubricant Control Valve 9 Saw Motor ON/OFF Switch
4 Blade Guides 10 Vice Handwheel
5 Motor 11 Automatic Shut Off Switch
6 Feed Rate Control Knob 12 Blade Tracking Controls

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ASSEMBLY PARTS
Item Description Item Description
1 Work Stop and Rod 6 Hydraulic Cylinder
2 4 x 3mm x 30mm Cotter Pin 6A Feed Rate Control Knob
3 4 x 5/8” Washer 6B Feed ON/OFF Valve Lever
4 Swarf Screen 7 4 x Wheel & Covers
5 2 x Wheel Axle

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ASSEMBLY & SET UP
The bandsaw comes partly assembled. Unpack and lay out all the items and
identify each one, referring to pages 9 & 10.
If any parts are missing, immediately contact the dealer where the product
was purchased.
CLEAN UP
The unpainted surfaces of your machine are coated with a heavy duty rust
preventative that prevents corrosion during shipment and storage. This rust
preventative works extremely well, but it will take a little time to clean.
There are many ways to remove this rust preventative, but the following steps
work well in a wide variety of situations. Always follow the manufacturers
instructions with any cleaning product you use and make sure you work in a
well ventilated area to minimise exposure to toxic fumes.
BEFORE CLEANING, GATHER THE FOLLOWING:
• Disposable rags/cloth
• Cleaner/degreaser
• Safety glasses & disposable gloves
• Plastic paint scraper (optional)
BASIC STEPS FOR REMOVING RUST PREVENTATIVE
1. Coat the rust preventive with a liberal amount of cleaner/degreaser and
let it soak for 5-10 minutes.
2. Wipe off the surface. If the cleaner/degreaser is effective, the rust
preventative will wipe off easily. If you have a plastic paint scraper, scrape
off as much as you can first, then wipe off the rest with a rag.
3. Repeat steps 1 & 2 as necessary until clean, then coat all unpainted
surfaces with a quality metal protectant to prevent rust.
SHIPPING BRACKET
A shipping bracket has been installed on the bandsaw to protect the
alignment of the bow during shipment. After removal, store the bracket in a
safe place until you need to move or ship the bandsaw in the future.

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1. Unbolt the shipping bracket shown
here.
NOTE: Retain all components, as the
bracket can be reinstated if the
bandsaw needs transporting/
shipping in the future.
INSTALLING WORK STOP
1. Insert the work stop rod through the hole in
the base and lock in place with a hex key
and screw.
2. Slide work stop over the rod.
3. Measuring from the outside of the blade,
tighten the thumbscrew to set the work
stop at the desired length.

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INSTALLING THE HYDRAULIC CYLINDER
1. Unscrew the retaining nut from the
cylinder support rod and tighten
the bolts that hold it to the side of
the machine using a 17mm
spanner.
2. Slide the cylinder onto the rod, as
shown, with the feed rate control
knob pointing upwards and refit
the retaining nut into position at
the end of the support rod.
3. Insert the hinge pin through the
hole in the end of the piston and
move the cylinder upwards
towards the cylinder bracket
attached to the main arm.
NOTE: In order to screw the hinge
pin into the bracket, it may
be necessary to depress the
piston. Alternatively, get a
second person to raise and
support the bandsaw arm
until the hinge pin is aligned with the hole in the bracket.
4. Screw in and tighten the hinge pin using a 14mm spanner.

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INSTALLING THE WHEELS
COMPONENTS & HARDWARE NEEDED
• 4 x Wheels
• 2 x Axle
• 4 x Cotter Pins (3 x 30mm)
• 4 x Flat Washers (5/8”)
1. Slide axle through the holes in the bottom of the
cabinet.
2. Slide the flat washers onto the axle,
followed by the wheels. Secure the
wheels with the cotter pins as shown.
INSTALLING THE SWARF SCREEN
1. To prevent swarf getting into the
blade lubricant and pump, place
the swarf screen over the
drainage hole in the centre of the
drip tray as shown.

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DRIVE V-BELT
The drive belt may need to be tensioned or repositioned for your desired
speed.
1. Disconnect the machine from the
power supply.
2. Unscrew the cover to the pulley
housing
3. Loosen the two hex bolts on the
motor mount bracket, as shown.
4. Adjust the two hex bolts on the
motor mount plate to loosen the
belt.
5. Slip the belt over the combination
of pulleys to get the desired
meters per minute, MPM (see
adjacent chart). Make sure the
belt is on parallel pulley wheels.
6. Readjust and tighten the two hex
bolts on the motor mount plate.
7. Retighten the two hex bolts on the motor mount bracket.
CUTTING SPEED RATE RECOMMENDATION
Selecting the right blade speed for cutting depends on the type of material
being cut. Selecting the correct blade speed prolongs the life of the blade
and provides the best possible cutting results.

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The Cutting Speed Rate Recommendation Chart that follows offers guidelines
only for various metals, given in feet per minute (FPM) and meters per minute
(MPM). Choose the speed closet to the number shown in the chart.
BLADE SELECTION
TOOTH PITCH
Usually measured as TPI (teeth per inch), tooth pitch determines the size/
number of the teeth. More teeth per inch (fine pitch) will cut slower but
smoother, while fewer teeth per inch (coarse pitch) will cut rougher but faster.
As a general rule, choose blades that will have at least three teeth in the
material at all times. Use fine pitched blades on harder metals and coarse
pitched blades on softer metals. When selecting blades blades, refer to the
above chart and following diagram for recommended blade tooth (TPI) and
speed (FPM) based on workpiece material.
Material Speed FPM (MPM) Material Speed FPM (MPM)
Carbon Steel 196 - 354
(60 - 108)
Oil Hardened Tool
Steel
206 - 2132
(62 - 65)
Tool Steel 203
(62)
Stainless Steel 85
(26)
Alloy Steel 111 - 321
(34 - 98)
CR Stainless Steel 85 - 203
(26 - 62)
Free Machining
Stainless Steel
150 - 203
(46 - 62)
Thin Tube 180 - 220
(54 - 67)
Angle Steel 180 - 220
(54 - 67)
Aluminum Alloy 220 - 534
(67 - 163)
High Speed Tool
Steel
75 - 118
(25 - 36)
Copper Alloy 229 - 482
(70 - 147)
Mold Steel 246
(75)
Grey Cast Iron 108 - 225
(33 - 75)
Cold Work Tool
Steel
95 - 213
(29 - 65)
Ductile Austenitic
Cast Iron
65 - 85
(20 - 26)
Hot Work Tool
Steel
203
(62)
Malleable Cast
Iron
321
(98)
Water Hardened
Tool Steel
246
(75)
Plastic 220
(67)

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TOOTH STYLE
When selecting blades, another
option to consider is the shape,
gullet size, teeth set and teeth
angle, otherwise known as Tooth
Style. Many blade manufacturers
offer variations of the four basic
styles, as shown.
•Standard: This style is considered to be the standard because the tooth size
and shape are the same as the tooth gullet. The teeth on these blades
usually are very numerous, have no angle and produce cuts by scraping
the material; these characteristics result in very smooth cuts, but do not cut
fast and generate more heat that other types while cutting.
•Skip: This style is similar to a raker blade that is missing every other tooth.
Because of the design, skip toothed blades have a much larger gullet than
raker blades, and therefore cuts faster and generate less heat. However,
these blades also leave a rougher cut than the raker blades.
•Hook: The teeth on this style have a positive angle (downward) which
makes them dig into the material and the gullets are usually rounded for
easier waste removal. These blades are excellent for the tough demands
of re-sawing and ripping thick material.
•Variable Pitch: These blades typically feature combinations of tooth styles
that provide qualities of both.
TOOTH SET
Three of the most common tooth
sets are Alternate, Wavy & Raker

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CHOOSING BLADE TPI
Selecting the right blade for the job depends on a variety of factors, such as
type, hardness and shape of the material being cut, machine capability and
operator technique.
The chart below is a basic starting point for choosing blade type based on
teeth per inch (TPI) for variable tooth pitch blades and for standard raker type
bi-metal blades/HSS blades. As a general rule, there should be at least 3 teeth
in contact with the workpiece at all times. However, for exact specifications of
bandsaw blades, contact the blade manufacturer.
When cutting structural shapes such
as angle iron or I-beams, workpieces
should be positioned to maintain the
same material width throughout the
cut, as illustrated.
To select the correct blade TPI:
1. Measure the material thickness.
This measurement is the length of
cut taken from where the tooth
enters the workpiece, sweeps
through and exits the workpiece.
2. Refer to the Material Width row of
the blade selection chart below and read across to find the workpiece
thickness you need to cut.
3. In the centre row, find the TPI that corresponds to the workpiece thickness.
TEST RUN
Once the assembly has been completed, test run the machine to ensure it is
properly connected to the power and safety components are functioning
correctly.
If you find an unusual problem during the test run, immediately stop the
machine, disconnect it from the power source and fix the problem before
operating the machine again. The troubleshooting table on page 33-35 of this
manual may help.

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OPERATION
STARTING & STOPPING
The bandsaw has two start/stop
buttons. One for the saw motor
and one for the lubricant pump.
They both have a spring loaded
emergency stop cover, which
should always be in the down
position when the bandsaw is in
operation.
OPERATING TIPS
The following tips will help you safely and effectively operate your bandsaw
and help you get the maximum life out of your saw.
Tips for horizontal cutting:
• Use work stop to quickly and accurately cut multiple pieces of stock to the
same length.
• Clamp material firmly in the vice jaws to ensure a straight cut through the
material.
• Let the blade reach full speed before engaging with the workpiece. Never
start a cut with the blade in contact with the workpiece.
• Wait until the blade has completely stopped before removing workpiece
from the vice, and avoid touching the cut end as it could be very hot.
• Support long workpieces so they won't fall when cut and flag ends of
workpieces to alert passers-by of potential danger.
• Use coolant when possible to increase blade life.
• Loosen blade tension at the end of each day to prolong blade life.
WORK VICE
The vice can cut angles from 0o- 45o and hold material up to 10.5” wide at 0o
to 5” wide at 45o.

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TO SQUARE VICE TO BLADE
1. Loosen the locking bolt, as shown.
2. Use the scale as a guide to set
your angle, or a machinists square
to square the blade to the vice.
3. Tighten the lock bolt.
TO ADJUST VICE ANGLE
1. Loosen the lock bolt on the rear jaw,
as shown, with a wrench.
2. Use the scale to set your angle.
3. Tighten the lock bolt.
4. Loosen the lock bolt on the opposite
jaw, as shown, so the jaw can float,
and match the angle of the
workpiece.
5. Tighten vice against the workpiece.
6. Tighten the lock bolt.