Clarke Woodworker CWL12D Operating & Maintenance Manual

Clarke Woodworker CWL12D Operating & Maintenance Manual

37” woodlathe

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37" WOODLATHE
Model No. CWL12D
Part No. 6500680
OPERATING & MAINTENANCE
INSTRUCTIONS
12/97

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  • Page 1 37” WOODLATHE Model No. CWL12D Part No. 6500680 OPERATING & MAINTENANCE INSTRUCTIONS 12/97...
  • Page 2: Table Of Contents

    CONTENTS PAGE Lathe Specifications ....................3 General Safety Instructions ..................5 Wood Lathe Safety Instructions ................. 6 Electrical Connections and Motor Specifications ........... 7 Unpacking And Checking Contents ................ 8 Assembly And Installation ..................9 Understanding your Lathe ..................11 Spindle Speeds and Belt Tensioning ...............
  • Page 3: Lathe Specifications

    Thank you for purchasing this CLARKE 37” Wood lathe, designed for DIY and semi professional use. Before assembling this machine, please read this manual thoroughly and follow all instructions carefully. In doing so you will ensure the safety of yourself and that of others around you, and you can...
  • Page 4 GENERAL SAFETY RULES FOR OPERATING MACHINERY WARNING As with all machinery, there are certain hazards involved with their operation and use. Exercising respect and caution will considerably lessen the risk of personal injury. However, if normal safety contained. KNOW YOUR MACHINE. Read the manual carefully.
  • Page 5: General Safety Instructions

    ADDITIONAL SAFETY RULES FOR WOOD LATHES IMPORTANT: You should not operate this mount the Centre with workpiece attached machine unless you are thoroughly familiar into headstock spindle. with wood turning lathes and wood turning techniques. If there is any doubt whatsoever, 10.
  • Page 6: Wood Lathe Safety Instructions

    ELECTRICAL CONNECTIONS Connect the mains lead to a standard 230 volt (50Hz) electrical supply using a 13 amp BS1363 plug fitted with a 13 amp fuse. or a suitably fused isolator switch. WARNING : THIS APPLIANCE MUST BE EARTHED. IMPORTANT : The wires in the mains lead are coloured in accordance with the following code : Green &...
  • Page 7: Electrical Connections And Motor Specifications

    Separate all parts from packing materials and check against the lists below to ensure that all items are accounted for, before discarding any packing material. If any parts are missing or damaged in any way, please contact your Clarke dealer immediately. Fig. 1 A.
  • Page 8: Assembly And Installation

    (G), on to the bed as shown in Fig. 10. 2. ASSEMBLY OF LATHE BED HALVES. Ensure the Clarke label on the Tailstock and the threaded hole in the tool rest base 2.1 Assemble the two bed halves (steel tubes) (shown in fig 4), faces towards the front.
  • Page 9 If the bed is too loose however, the weight Fig. 5 of the Tailstock and Tool rest base may cause the bed to rotate. In this event, nip `up the Bed Securing Set Screw (T, fig 10). 4.3 For additional rigidity of the motor and it’s mounting brackets, a 8mm hole must be drilled through the bench top using the hole in the hinge bracket (V, fig 10), as a pilot.
  • Page 10 5. ALIGNING THE CENTRES 6. REMOVAL OF SPUR CENTRE FROM SPINDLE 5.1 The spur centre and the revolving centre are used for spindle turning and should To remove the spur centre from spindle, hold the always be in alignment. To align centres spindle pulley with one hand whilst turning the refer to Fig.
  • Page 11: Understanding Your Lathe

    UNDERSTANDING YOUR LATHE LATHE PARTS, CONTROLS, NOMENCLATURE AND FUNCTIONS Become familiar with the nomenclature and purpose of the various operating controls and parts of your lathe. Please read and fully understand this manual before attempting to perform any operation. Fig. 10 HEX.
  • Page 12: Spindle Speeds And Belt Tensioning

    SPINDLE SPEEDS A chart showing spindle speeds and recommended turning speeds is mounted on the pulley cover, and for convenience, is duplicated as follows: SPINDLE SPEEDS RECOMMENDED GENERAL SPEEDS SPINDLE TURNING SQUARE LENGTH ROUGHING FINISHING 1” (25mm) 12” (305mm) 1374 3260 2”...
  • Page 13: Preparation For Use (Spindle/Faceplate/Outboard Turning & Indexing)

    PREPARATION 1. SPINDLE TURNING NOTE: If you use a ‘dead centre’ i.e not a rotating If you are not experienced at the art of wood type, put a drop of oil or wax on the wood turning, we suggest that you practice using the where it contacts the centre.
  • Page 14 5.12 Check to ensure there are no spanners/ 3. INDEXING wrenches/pieces of wood or other debris Fig. 17 in the area, and that your clothing is properly adjusted before pushing the ON button. The procedure for cutting and the use of woodworking chisels is described under “Using Woodworking Chisels, starting on page 15.
  • Page 15 2.3 Pull out the index pin and slowly rotate the 3. OUTBOARD TURNING workpiece until the pin slides into the next hole in the pulley. This technique is used to do jobs that are too large to mount conventionally. It is straight 2.4 Do this six times and put the next mark on forward faceplate turning except that because the workpiece.
  • Page 16 Scrape. Fig. 22 An 8 piece chisel set is available from your CLARKE dealer, part no. 6500649 2. THEORY OF TURNING There are two classes of chisel; these are : a. Chisels intended primarily for cutting, and b. Chisels used only for scraping.
  • Page 17 Either a cutting or scraping action can be used difficulty holding the when cutting at the circumference. The shaving chisel, then is removed like a peeling from a potato. improperly supported chisel will begin to Scraping only, is used when cutting at the bounce, or chatter, diameter.
  • Page 18: Using Woodworking Chisels And Basic Techniques

    2.4 How to Position Tool Rest for Fig. 26 Circumference Scraping In scraping operations, the tool rest position is not as critical as it is for cutting operations. The chisel generally is held horizontally, though it can be held at an angle to reach into tight places. Considering that the wire edge of the chisel does the scraping, sketches 9 and 10 show the Three gouges the 1/4”, 1/2”, and 3/4”...
  • Page 19 bevel side down, keep the base of the bevel The spear point is used for fine scraping and against the work. Good practice is to place the delicate operations, such as the forming of skew well over the work, pull it back until the beads, parallel grooves and shallow vees.
  • Page 20 10.2 Finish Cutting 9. USING WOOD RASPS AND FILES Fig. 34 Fig. 32 Finish cutting requires more control with less force and is better done with the palm of the tool rest hand turned up. The wrist is still held down, and A wood rasp will remove stock quickly when held the side of the index finger acts as a guide along against the revolving workpiece.
  • Page 21: Making Standard Cuts

    MAKING STANDARD CUTS end can also be taken. Roughing-off generally 1. THE ROUGHING OFF-CUT is continued until the cylinder is approximately Reducing a square or odd shaped workpiece 3mm larger than the desired finished size. down to a cylinder of approximate size for finish Roundness can be tested by laying the gouge turning is called roughing-off.
  • Page 22 heel of the skew into it along the surface of the 5. CUTTING A SHOULDER outside area. A shoulder can be the side of a square portion Tilt the cutting edge with handle raised up, so left in the workpiece, the side of a turned section that only the extreme heel does this cutting.
  • Page 23: Making Standard Cuts

    MAKING STANDARD CUTS At this stage long cuts from the centre of either 1. THE ROUGHING OFF-CUT end can also be taken. Roughing-off generally Reducing a square or odd shaped workpiece is continued until the cylinder is approximately down to a cylinder of approximate size for finish 3mm larger than the desired finished size.
  • Page 24 heel of the skew into it along the surface of the 5. CUTTING A SHOULDER outside area. A shoulder can be the side of a square portion Tilt the cutting edge with handle raised up, so left in the workpiece, the side of a turned section that only the extreme heel does this cutting.
  • Page 25 Now draw the skew straight back whilst raising Fig. 45 the handle slowly, until the edge of the heel at the pencil line starts to cut. As the edge begins to cut, roll the skew in the direction of the vee, so that the exact portion of the edge, when started cutting, will travel in a 90°...
  • Page 26: Spindle Turnings

    SPINDLE TURNINGS 1. PLOTTING THE SHAPE 2. DUPLICATE TURNINGS Once the basic cuts have been mastered, you Identical turnings require great accuracy when are ready to turn out finished work. plotting the work and doing the various cuts. Many methods have been devised to assist in The first step is to prepare a plan for the proposed perfecting the work.
  • Page 27 turning. The first finished turning can also be used Position the backstick against a pre-turned as a template. portion near the centre of the spindle, this Attach the template to a board, then mount portion being at least 3mm over finish size to the board behind the lathe on hinges, so that allow for later removal of any marks made upon the template can be moved down to touch the...
  • Page 28: Miscellaneous Operations

    MISCELLANEOUS OPERATIONS 1. GUIDE BLOCKS FOR SCRAPING OPERATIONS A guide block can be clamped to a chisel to it in the headstock, using a 4-jaw (metal-lathe) limit the depth of cut and aid the production chuck or a Jacobs chuck. of perfect cylinders, tapers and facings on When this method is employed, there is no faceplate turnings.
  • Page 29: Face Plate And Chuck Turnings

    FACEPLATE & CHUCK TURNINGS 1. PLANNING THE WORK Fig. 55 Fig. 57 wood bit available. This can be accomplished as illustrated above, or in any of the ways shown on pages 18 & 19. Be careful to measure in advance the depth to which the drill can be allowed to go.
  • Page 30: Fancy Faceplate Turnings

    FANCY FACEPLATE TURNINGS Fig. 59 After making a recess at least 1/2 the way through the workpiece, and finishing this on the inside, remove the workpiece from the lathe. Now mount a short length of soft wood stock on the screw centre and turn this down to form a dowel that will be a tight press (not driving) fit inside the recessed end of the cylinder.
  • Page 31 and mounted on this chuck. thus mounted, the After being chucked the remaining face of the remaining contours can be turned to shape. ring can be turned to the proper contour, thus cutting away the centre portion. Fig. 63 Work of this type take constant measurements, or better still, use a template to guard against over or under cutting.
  • Page 32 ball is constantly shifted, never more than 1/8 Fig. 68 turn and always with a definite pattern. Since turning between centres makes the work a perfect sphere across the grain, the ball must be mounted in the chuck so that the first scraping cuts will round it up in the opposite direction .
  • Page 33: Turning Plastics

    TURNING PLASTICS 4. USE OF FORMED TOOLS FOR 1. TYPES OF PLASTICS PRODUCTION BEADING AND SIMILAR There are two general groups of plastics. The first OPERATIONS Fig.71 includes all phenol plastics moulded under heat and pressure. Bakelite and Formica are When a number of identical pieces are to be examples.
  • Page 34: Sanding, Buffing And Polishing

    SANDING, BUFFING AND POLISHING Fig. 73 The application of the sandpaper strip is shown in fig. 74. Care must be exercised in order to prevent dubbing the corners of beads, shoulders etc. It is good practice to finish sanding with the work in reverse rotation.
  • Page 35: Maintenance

    glued or tacked in place, do satisfactory work. Quick acting chucks can be very useful for These have the advantage that special sizes, sanding operations on duplicate production tapers etc., can be made. parts. The chuck is made slightly oversized, and a piece of rubber hose (for small parts) is inserted The drum is used mainly for sanding the edges Fig.
  • Page 36: Optional Accessories

    6500649 PARTS & SERVICE CONTACTS For Spare Parts and Service, please contact your nearest dealer, or CLARKE International, on one of the following numbers. PARTS & SERVICE TEL: 020 8988 7400 PARTS & SERVICE FAX: 020 8558 3622 e-mail as follows: PARTS: Parts@clarkeinternational.com...
  • Page 37: Parts List

    PARTS LIST ** See your CLARKE dealer No. Description Part No. No. Description Part No. Pulley, Motor 37 Plunger SD1237 Screw, Hex Socket SD1202 38 Pin SD1238 Motor SD1203 39 Spring SD1239 Screw, Hex HD SD1204 40 Housing, Plunger SD1240...
  • Page 38: Parts Diagram

    PARTS DIAGRAM...

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