Clarke CBM1-B Installation and operation manual

OPERATING & MAINTENANCE
INSTRUCTIONS
ORIGINAL INSTRUCTIONS GC0321 - REV 4
MORTICING MACHINE
MODEL NO: CBM1-B
PART NO: 6500015

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INTRODUCTION
Thank you for purchasing this CLARKE Bench Morticing Machine.
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.
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.
PARTS & SERVICE
This product has been designed to give long and trouble free service. If,
however, having followed the instructions in this booklet carefully, you
encounter problems, refer to your local Clarke dealer.

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SPECIFICATIONS
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.
ACCESSORIES
The following Morticing Chisels and Bits are available from your CLARKE dealer.
Mortice Width Bit Shank Size Part No.
1. 6mm (1/4”)....................5mm .................................. 6500025
2. 9mm (3/8”)....................6mm .................................. 6500026
3. 13mm (1/2”)...................9mm .................................. 6500027
4. 16mm (5/8”) 13mm 6500028
Model Number CBM1B
Dimensions (L x W x H) 338 x 342 x 290 mm
Weight 27.5 kg
Power Supply 230V @50Hz 1ph
Power rating 370 Watts (i/2HP)
Speed 1500 rpm
Hold Down capacity 90mm
Max Thickness 95mm
Max Chisel Stroke 76mm
Table Size 150 x 340mm
Base Size 255 x 200mm

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SAFETY WARNINGS
Save all warnings and instructions for future reference.
The term “power tool” in the warnings refers to your mains-operated electric
planer.
WORK AREA SAFETY
1. Keep work area clean and well lit. Cluttered or 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 can ignite the dust or fumes.
3. Keep children and bystanders away while operating a power tool.
Distractions can cause you to lose control.
ELECTRICAL SAFETY
1. Power tool plugs must match the outlet. Do not modify the plug in any way.
Do not use any adapter plugs with earthed (grounded) power tools.
Unmodified plugs and matching outlets will reduce risk of electric shock.
2. Avoid body contact with earthed or grounded surfaces, such as pipes,
radiators, ranges and refrigerators. There is an increased risk of electric
shock if your body is earthed or grounded.
3. Do not expose power tools to rain or wet conditions. Water entering a
power tool will increase the risk of electric shock.
4. Do not abuse the cable. Do not use the cable for carrying, pulling or
unplugging the power tool. Keep cable away from heat, oil, sharp edges
or moving parts. Damaged or entangled cables increase the risk of electric
shock.
5. 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.
6. If operating a power tool in a damp location is unavoidable, use a residual
current device (RCD) protected supply. Use of an RCD reduces the risk of
electric shock.
WARNING: READ ALL SAFETY WARNINGS AND ALL INSTRUCTIONS.
FAILURE TO FOLLOW THE WARNINGS AND INSTRUCTIONS CAN RESULT IN
ELECTRIC SHOCK, FIRE AND/OR INJURY.

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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 can result in personal injury.
2. Use personal protective equipment. Always wear eye and ear protection.
Protective equipment such as dust mask, non-skid safety shoes or hearing
protection used for appropriate conditions will reduce personal injuries. This
machine develops considerable noise when in use. ALWAYS wear Ear
Defenders.
3. Prevent unintentional starting. Ensure the switch is in the off position before
connecting to power source.
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 can
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. Dress correctly. Do not wear loose clothing or jewelry. Keep your hair, and
clothing away from moving parts. Loose clothes, jewelry or long hair can
be caught in moving parts.
7. If devices are provided for the connection of dust extraction and collection
facilities, ensure these are connected and correctly used. Use of dust
collection can reduce dust-related hazards.
POWER TOOL USE AND CARE
1. Do not force the power tool. Use the correct power tool for your
application. The correct power tool will do the job better and safer at the
rate for which it was designed.
2. Do not use the power tool if the switch does not turn it on and off. Any
power tool that cannot be controlled with the switch is dangerous and
must be repaired.
3. Disconnect the plug from the power source before making any
adjustments, changing accessories, or storing power tools. Such preventive
safety measures reduce the risk of starting the power tool accidentally.
4. Store idle power tools out of the reach of children and do not let persons
unfamiliar with the power tool or these instructions to operate the power
tool. Power tools are dangerous in the hands of untrained users.
5. Maintain power tools. Check for misalignment or binding of moving parts,
breakage of parts and any other condition that can affect the power
tool's operation. If damaged, have the power tool repaired before use.
Many accidents are caused by poorly maintained power tools.

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6. Keep cutting tools sharp and clean. Sharp cutting edges are less likely to
bind and are easier to control.
7. Use the power tool, accessories and tool bits etc. in accordance with these
instructions, taking into account the working conditions and the work to be
performed. Use of the power tool for operations different from those
intended could result in a hazardous situation.
ADDITIONAL SAFETY INSTRUCTIONS FOR MORTICING MACHINES
1. Do not use until unit is completely assembled and installed according to
these instructions.
2. If you are not thoroughly familiar with the operation of morticing machines,
obtain advice from a qualified person.
3. Ensure the machine is secured to a workbench to prevent it from tipping
over during operation.
4. Never turn the morticing machine on before clearing the table of all
objects (tools, scrap pieces, etc.).
5. Always keep hands, fingers and hair well away from the rotating bit.
6. Do not attempt to mortice materials that do not have a flat surface, unless
a suitable support is used.
7. Always use the ‘Hold Down’ to prevent work from lifting when withdrawing
the chisel.
8. Always support the workpiece securely against fence to prevent rotation.
9. Ensure chisel and bit is sharp, undamaged and properly secured.
10. Ensure the chuck key is removed before starting.
11. Never start the machine with the drill bit or chisel pressed against the
workpiece.
12. Never perform layout, assembly, or set-up work on the machine with the
cutting tool rotating.
13. Always adjsut the depth stop to avoid drilling into the table.
14. Always stop the machine before removing scrap pieces from the table.
15. Shut off the power, remove the drill bit and chisel and clean the table
before leaving the machine.
16. Never place your fingers in a position where the drill or cutting tool could
contact them if the workpiece should shift unexpectedly.

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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 marked Nor
coloured Black.
•TheBrown wire must be connected to the terminal marked Lor
coloured Red.
•TheYellow and Green wire must be connected to the terminal
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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COMPONENTS
When unpacking please check contents and advise your dealer immediately
if any parts are missing. The essential components are as follows.
NO DESCRIPTION NO DESCRIPTION
1Table 9 3 x Hex Keys (4,5 & 6mm)
2 Countersunk Table Screws 10 Dog Clutch
3Fence 11 Spring
4HoldDownPost 12 Securing Pin
5HoldDown 13 Raise/Lower Lever
6LockingLevers 14 Gas Spring Assembly
7ChuckKey 15 Tool Rack
8 Chisel & Drill Bit

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ASSEMBLY
1. Attach the dog clutch to the raise/
lower spindle in the manner shown
- thread the spring on to the screw
stem then, screw it into the spindle
through the hole in the dog clutch
and tighten fully.
2. Disassemble the fittings from the
end of the Raise/Lower Lever, then
slide the end of the lever through
the hole in the dog clutch.
3. Thread on to the end of the lever,
a flat washer, followed by the
spring, a second flat washer, and
finally the nut.
4. Tighten the nut - fully.
5. The handle is used to raise and
lower the head. It may be
repositioned for maximum
leverage and comfort during
operation.
6. To do this, pull the lever away from
theshaft as shown, and turn it to a
more comfortable or appropriate
position. Release the lever and it
will return under spring pressure.
WARNING: FOR YOUR OWN SAFETY, DO NOT CONNECT THE MORTISING
MACHINE TO A POWER SOURCE UNTIL IT IS FULLY ASSEMBLED, AND YOU
HAVE READ AND UNDERSTOOD ALL SAFETY AND OPERATIONAL
INSTRUCTIONS.

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7. Raise the head using the operating
handle to the top of its travel and
hold in place by securing the
depth stop.
8. Attach the damper to its two fittings by
pushing it on the spherical housings until they
click into place.
9. Assemble the table to the base
using the two countersunk headed
screws provided.

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10. Locate the hold down post in its
housing in the stem with the flat
facing the grub screw shown.
Tighten the grub screw, using the
hex. key provided.
11. Slide the fence stem into the
housing in the base of the unit,
then screw in the locking lever into
the housing and use to secure the
fence.
12. Lower the Hold Down on to the
post and secure temporarily by
tightening the locking lever.
NOTE: If the locking lever is
prevented from turning, pull
the handle outwards against
spring pressure, then turn the
handle to a more convenient
position. Release the handle
to lock it in place and
proceed to turn the
complete assembly once
again. Repeat the process as
necessary until the lever
assembly locks the device in place.
13. Finally, attach the tool holder to the
machine as shown. Two hex. socket
head screws are provided for this
purpose.
INSTALLATION
IMPORTANT: Before using the machine, it
must be bolted down to a firm and stable
workbench to prevent it from tipping during
operation. Two holes are supplied in the
base for this purpose.
Additionally, the chisel and bit must be
installed and various adjustments made
before the machine can be used. These
procedures are described on the following pages.

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PREPARING FOR USE
INSTALLING CHISEL AND BIT
CAUTION: THE CHISEL AND DRILL BIT ARE EXTREMELY SHARP...TAKE CARE WHEN
HANDLING!
1. Open the cover at either side of
the head, by unscrewing the single
securing screw then pulling down
on the plastic catch to expose the
chuck.
2. Insert the drill bit into the chisel
then insert the chisel and bit up
through the hole in the head.
3. Push the chisel up as far as possible
into the head and nip up the grub
screw to temporarily hold it in this
position, using the hex. wrench
provided.
4. You can lower the drill bit gently
and allow it to rest on the table
whilst carrying out this operation.
NOTE: The opening in the side of the
chisel should always be to the
right or left, never to the front or rear. The openingallows chips to
escape duringoperation. See ‘Adjusting Chisel Parallel to
Workpiece’ on page 14.
WARNING: MAKE SURE THE MACHINE IS DISCONNECTED FROM THE
MAINS SUPPLY BEFORE PERFORMING CHECKS, ADJUSTMENTS, OR SETUP
PROCEDURES.

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5. Push the drill bit up through chisel,
and into the opened jaws of the
chuck as far as it will go, then
back off approx. 1/16”(2mm).
6. Secure the drill bit in this position,
by tightening the jaws using the
chuck key provided.
Note:
It is important that the drill bit bottoms out on the CHISEL and NOT the chuck,
before setting the 1/16” (2mm) clearance.
IIf the bit does bottom out in the chuck first, slacken off the grub screw securing
the chisel and lower it approx. 1/16” (2mm) and try again.
• Alternatively, grind off a portion of the drill shank.
This adjustment is IMPORTANT to ensure a proper clearance is provided
between the cutting tips of the bit and the points of the chisel.
For certain types of wood, it may be necessary to increase this distance up to
a maximum of 3/16" (5mm). This will become obvious when cutting
commences and chips are not being ejected satisfactorily.

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ADJUSTING THE FENCE
7. The fence can be moved in or out
by slackening the locking lever,
sliding the fence to the desired
position and re-tightening the
locking lever.
8. When the workpiece, being held
to the fence, is lined up as
required, tighten the locking lever.
ADJUSTING CHISEL PARALLEL TO WORKPIECE
It is important that the chisel is square
to the workpiece. To achieve this,
slacken the chisel securing screw and
rotating the chisel until the back
surface is flat against the workpiece,
or a piece of wood with parallel sides,
resting against the fence, then
retighten the screw, ensuring a
distance of at least 1/16” (2mm) is
maintained between the chisel and
the end of the drill bit.
It is also IMPORTANT to remember that
the slot in the side of the chisel should always face TOWARDS THE DIRECTION
OF MOVEMENT OF THE WORKPIECE (see diagram below).

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ADJUSTING THE DEPTH STOP
A depth stop is provided which may
be used to limit the depth of the chisel
cut.
To adjust the depth stop, slacken the
securing knob so that the stop is
capable of being moved, but will not
drop under its own weight, then raise
the stop so that it contacts the
underside of the head.
Lower the head to the maximum
depth desired, then tighten the stop
securing knob.
ADJUSTING THE HOLD DOWN
The purpose of the ‘Hold Down’ in to prevent the workpiece from lifting as the
chisel is raised up, out of the hole.
The hold down should be adjusted so it just touches the top of the workpiece
and allows the workpiece to slide left or right. Packing pieces may be used if
necessary.

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OPERATION
1. Set the fence to suit the position of the mortise on the workpiece. Make
sure the fence and chisel are square to each other (see p14), and tighten
in place.
2. Make any fine adjustments to the fence to move the workpiece in or out
by using the adjuster at the rear of the fence (see p14).
3. Set the depth stop to the required depth of cut as described on page 15.
4. Ensure the Hold Down rests gently on the surface of the workpiece, but not
so tight as it prevents the workpiece from moving, and lock into position. If
necessary, use packing pieces between the workpiece and the hold down
• If working on long workpieces, support the timber along its length.
5. Ensure the workpiece is held firmly against the fence.
SWITCHING ON AND OFF
1. The ON-OFF switch is located on the motor. Raise the RED cover and push
the GREEN button to switch the machine ON.
2. Push the RED button or the RED cover to switch the machine OFF.
NOTE: The switch is a No Volt Release type. If the supply is interrupted,
the ON/OFF switch will automatically revert to the OFF position.
This is a safety device to prevent the machine from starting again,
should the supply be restored.
3. With the machine running, feed the chisel and bit steadily into the
workpiece by pulling down on the operating handle.
NOTES
• It is recommended that you check the position and depth of cut, on
a piece of scrap before cutting your workpiece.
• The rate of penetration of the chisel must be fast enough to prevent
burning at the tip of the bit, but not so fast as to cause the machine
to slow or stall. With experience you will find suitable feed rates to suit
various types of timber.
• You may encounter smoke from the bit or material once the chisel
has engaged the material. The smoke created is a natural operating
occurrence in hollow chisel morticing and is caused by material
chip friction and the resins in the stock being burned off. Blueing of
the chisel after initial use is not indicative of a dull chisel, but a
combination of friction and resin buildup on the cutting faces of the
chisel.

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• A dull chisel can be detected by the amount of excess force
required to complete a cut.
• After the first cut, the workpiece must be moved along in the correct
direction relative to the slot in the chisel, to allow chips to clear
freely. Move the workpiece so that the chisel slot is releasing chips
into the already cut part of the mortice.
• Do not have the slot against the blind end of the mortice, as the
chips will not be able to clear from the chisel. This will cause
overheating and possible breakage to the chisel or bit.
• When cutting deep mortises, make the cut in several stages of
approximately 25mm each, to allow chips to clear.
• When performing a through mortice, a piece of wood should be
placed between the workpiece and the table. This prevents the
wood from splintering when breaking through the bottom of the
mortise and also prevents damage to the table.
• Always switch the morticing machine off after use. Never leave the
machine running unattended.

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MAINTENANCE
The machine is maintenance free except for
periodically cleaning away any dust
accumulation and the application a light coat of
oil to all non- painted surfaces, particularly the
two columns.
All of the bearings are packed with grease at the
factory and require no further lubrication.
SHARPENING THE DRILL BIT & CHISEL
For best performance the chisel and bit need to
be kept sharp. Blunt cutting edges will give untidy
and inaccurate mortices, and can cause
overheating and breaking of the chisel and bit.
Sharpen the bit by using a small smooth file,
following the original shape of the bit. File the
inside edge of the spur, the sides of the brad
point, and the cutting edge inwards towards the
flutes of the bit to restore sharpness. Do not file
the outside edge of the spur as this will affect the
diameter of the bit.
Use a mortice chisel cutter with the correct size
pilot to sharpen the chisel. Two or three turns of
the cutter in a carpenters hand brace should be
enough to sharpen the chisel. Remove any burrs
from the outside of the chisel with a fine oil-stone.
Chisels and bits will need replacing when they
become badly worn and difficult to sharpen.
WARNING: FOR YOUR OWN SAFETY, TURN OFF POWER AND DISCONNECT
TOOL FROM POWER SOURCE BEFORE PERFORMING ANY MAINTENANCE.

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COMPONENT PARTS
No Description No Description
1 Lock washer 31 Pin
2 Bolt 32 Connecting Bend A
3Base 33Cover
4Screw 34Spring
5Screw 35Screw
6 Fence 36 Connecting Bend B
7 Guide Column 37 Gear Column
8 Screw 38 Guide Column
10 Screw 39 Depth Set Guide
11 Lock Handle 40 Lock Handle
12 Knob 41 Wood Table
13 Hold-down Clamp 42 Screw
14 Guide Column 43 Chisel
15 Screw 44 Chisel Bushing
16 Cover 45 Chuck
17 Nut 46 Screw
18 Washer 47 Screw
19 Spring 48 Gear Shaft
20 Washer 49 Gear Casing
21 Tool Rack 50 Screw
22 Screw 52 Cover
23 Power Cable 53 Switch Box
24 Handle Grips 54 Screw
25 Motor 55 Switch
26 Bolt 56 Screw
27 Lock Washer 57 Screw
28 Step Plate 58 Screw
29 Handle 59 Gas Spring
30 Gear 60 Screw

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COMPONENT PARTS