Clarke MetalWorker CL300M Instruction Manual

OPERATION & MAINTENANCE
INSTRUCTIONS
ORIGINAL INSTRUCTIONS GC1118 - ISS 6
VARIABLE SPEED METAL LATHE
MODEL NO: CL300M
PART NO: 7610700

2
Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
INTRODUCTION
Thank you for purchasing this CLARKE 300mm Metal Lathe.
The compact rugged construction and screw cutting capabilities, makes the
CL300M ideal for model makers etc, both professional and DIY alike.
The machine is capable of turning up to a maximum diameter of 180mm and
an overall length of 300mm. It is further capable of producing short tapers and
Imperial threads, both left and right hand. Metric threads may also be cut with
the addition of a Metric Conversion Kit, available from your Clarke dealer (see
‘Accessories’ for details).
Before attempting to operate this machine, please read this instruction
manual thoroughly and follow all directions carefully. By doing so you will
ensure the safety of both yourself and others around you, and at the same
time you should look forward to long and trouble free service from your lathe.
IMPORTANT: This manual is intended to instruct the user on the operations
peculiar to the CL300M lathe ONLY. Although some reference is made and
advice given, regarding various metal turning techniques, it should not be
regarded as a general tutorial on the subject.
IMPORTANT: It is assumed that the user has some knowledge of machinery
of this type and is familiar with metal turning. If this is not the case, we
strongly advise that he/she enrol in a course at a local education centre
where possible, or seek advice from a qualified person.
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.

3
Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
TABLE OF CONTENTS
Introduction 2
Guarantee 2
General Safety Precautions 4
Additional Safety Rules for Lathes 6
Electrical Connections 8
Overview 9
The Headstock 10
The Running Gear 11
The Tailstock 11
The Saddle 11
The Motor 12
Unpacking and Assembly 13
Mounting the Lathe 14
Operation - 16
Simple Turning 16
Using Power Feed 17
Bevel Cutting 20
Screw Cutting 20
Changing Gears for Screw Cutting 23
Gear Configurations 24
Gear Charts for Screw Cutting 25
Maintenance 27
Settings and Adjustments 28
Accessories 30
Parts List 32
Parts Diagram 35
Specifications 36
Wiring Diagram 37
Declaration of Conformity 38

4
Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
SAFETY WARNINGS
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 may fly
away and cause injury.
4. Store power tools properly when not in use. Sharp tools should be stored in
a dry, secure place out of the reach of children.
5. Please read these instructions carefully and retain for future reference.
ELECTRICAL SAFETY
1. Power tool plugs must match the outlet. Never modify the plug in any way.
Do not use adaptor 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. Keep the cable away from heat, oil, sharp
edges or moving parts. Damaged or entangled cables increase 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.
WARNING: 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 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. 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 lathe 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. Regularly clean the air vents. The motor fan will draw dust inside the
housing and accumulation of material could cause electrical hazards.
8. Avoid operator fatigue. Stop the lathe at regular intervals for a short break
to rest hands and arms.
9. Maintain your tools. Keep all handles dry and clean. Keep chisels sharp.
ELECTRICAL SAFETY
1. Position the power cable so that it cannot be inadvertently pulled or
pinched and where it does not cause a trip hazard.
2. This lathe is designed for indoor environments and must not be used for
other purposes.
3. If the lathe requires repair, always contact your Clarke dealer. Always insist
on original spare parts. Repairs carried out by unauthorized persons may
be dangerous and invalidate the guarantee.
4. This lathe must only be used by adults. Children should not be allowed to
play with the lathe.
5. Do not use extension power cables.
6. Before cleaning or maintenance operations, always unplug the lathe from
the power supply.
POWER TOOL USE AND CARE
1. Do not force the machine. Use the correct tool for your task. It will do a
better and safer job at the rate for which it was designed.

6
Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
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 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 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 tool’s
operation. If damaged, have the power tool repaired before use. Many
accidents are caused by poorly maintained power tools.
6. Use recommended accessories. The use of improper accessories could be
hazardous.
7. Check the power tool for damage before using the machine. Any
damaged part should be inspected to ensure that it will operate properly
and perform its intended function. Check for alignment of moving parts,
breakage of parts, mountings, and any other condition that may affect the
machine’s operation. Any damage should be properly repaired or the part
replaced. If in doubt, DO NOT use the machine. Consult your local dealer.
SERVICING
1. When necessary, have your power tools serviced or repaired by a qualified
person using identical replacement parts. This will ensure that the safety of
the power tool is maintained.
ADDITIONAL PRECAUTIONS FOR LATHES
1. You should not operate this machine unless you are thoroughly familiar with
metal turning lathes and turning techniques. If there is any doubt
whatsoever, you should consult a qualified person.
2. NEVER attempt to turn a workpiece unless a suitable support is used.
ALWAYS stop the lathe before removing workpieces, work supports or swarf
from the table.
3. ALWAYS be sure that the workpiece is securely locked in position.
4. ALWAYS keep hands and fingers away from the moving workpiece.
5. Ensure all chuck keys, spanners and wrenches are removed from the lathe.
6. Examine the setup carefully, ensuring that nothing could possibly interfere
with the rotating workpiece.

7
Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
7. Ensure the tool post is secure and the cutting tool is adjusted to the correct
height.
8. Ensure the workpiece is properly secured.
9. Make all adjustments with the power OFF.
10. ALWAYS cut at correct speed for the size and type of material being
worked. Refer to a suitable turning manual for cutting speeds).
11. NEVER leave the lathe unattended whilst it is running.
12. When you have finished with machine always remove and store the
cutting tools.
13. When using a coolant in conjunction with the tray, on no account must
suds be allowed to enter the electrical system.
SAFETY SYMBOLS
The following safety symbols may be found on the machine.
Wear eye protection
Read instruction manual before use
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.

8
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 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.
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)

9
Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
OVERVIEW

10
Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
PARTS IDENTIFICATION
THE HEADSTOCK
The motor provides a direct drive to the Spindle via an internal tooth type belt.
Spindle speed is variable and is regulated by the Speed Control Knob (23),
located on the main control panel.
The spindle is provided with an internal No.3 Morse taper to accommodate a
centre for use with a face plate or turning clamp, (See ‘Accessories’ on page
30).
The Chuck Guard (3), is an essential component and is mounted on a pin
which is secured to the headstock by two screws. This should always be in
place when using a chuck.
The 3-Jaw, Self Centering Chuck (4) is mounted on the Spindle Flange (2). To
remove the chuck, simply remove the three securing nuts to the rear of the
flange allowing it to be pulled free together with the three mounting studs.
Three external jaws are also supplied which extend the capacity of the chuck.
Their uses and method of assembly is described under ‘Accessories’ on page
30.
The spindle has 6 holes drilled in its flange to accommodate a range of fixtures
such as a Face Plate, 4-Jaw chuck etc, (See ‘Accessories’ on page 30).
1 Headstock 15 Automatic Feed Lever
2 Spindle Flange 16 Cross-Slide Feed Handle
3ChuckGuard 17Apron
4 3-Jaw Chuck 18 Manual (Saddle) Feed Handle
5 Tool Post 19 Leadscrew
6 Cross-Slide 20 Motor Brush Cap
7 Compound Slide 21 Thread Dial Indicator Table
8 Tailstock Centre 22 Running Gear Cover
9 Tailstock 23 Variable Speed Control Knob
10 Tailstock Securing Nut 24 Forward/Off/Reverse Switch
11 Bed 25 Emergency Stop Switch
12 R.H. Leadscrew Bearing 26 High/Low Speed Range Lever
13 Compound Slide Feed Handle 27 Leadscrew Fwd/Neutral/Reverse
Lever
14 Thread Dial Indicator 28 Overload indicator