Related Manuals for CHESTER Cobra
Summary of Contents for CHESTER Cobra
- Page 1 Cobra Lathe Instruction Manual Chester UK Ltd Clwyd Close Hawarden Industrial Park Hawarden Chester CH5 3PZ Tel: 01244 531631 sales@chestermachinetools.com www.chestermachinetools.com...
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Page 2: Table Of Contents
Contents 1. Health & Safety 2 - 5 2. Machine Specification 3. Testing 4. Operation 8 - 16 5. Maintenance 6. Oiling Points 7. Change Gear Table 8. Parts List & Diagrams 20 - 25 10. Wiring Diagrams 26 - 27 11. -
Page 3: Health & Safety
If you have any questions relative to its application do not use the machine, until you have first been in contact with Chester UK. The lathe may not arrive with a power socket or plug. In the event of this happening, please inform Chester UK on Tel: (01244) 531 631. - Page 4 Keep tools sharp and clean for the best and safest performance. Follow instructions for lubricating and changing accessories. Use recommended accessories Consult Chester UK for recommended accessories. The use of improper accessories may cause hazards. Avoid accidental starting Make sure the switch is in the ‘OFF’ position before plugging in power cord.
- Page 5 Safety Device Interlock switch on pulley cover. As soon as the pulley cover is open, the machine will come to a stop with the function of this switch. Do not remove this switch from the machine for any reason, and check it’s function frequently. Interlock switch on cutting area.
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Page 6: Machine Specification
Machine Specification Center Height 70mm Swing Over Bed 140mm Between Centres 250mm Toolpost Tool Size Speed Range 100-2000rpm Longitudinal Travel 200mm Cross-slide Travel 50mm Chuck Diameter 80mm Spindle Bore 10mm Spindle Taper Tailstock Taper Motor Power 150W (0.2hp) Net Weight 23kg Dimensions 480 x 380 x 680mm... -
Page 7: Testing
Testing When the lathe is mounted to your satisfaction, proceed as follows: Close the chuck jaws. Check the tailstock is ‘nipped’ and the barrel lock is tightened. Check all loose items are removed from the lathe. Set the saddle approximately mid-way along the bed. Press the Emergency Stop Button IN (Emergency Stop ON). -
Page 8: Operation
Operation Definitions Main Axis This is the axis established through the spindle of the headstock. It is horizontal to and parallel with the lathe bed along its length, as described by the saddle Work Axis This is the axis established by the work piece; it is horizontal to, but not necessarily parallel with, the lathe bed, along its length. - Page 9 Motor Control Panel Power On LED Green LED that indicates that power is available to the motor. i.e. mains is applied, fuse is intact and the Emergency Stop switch is not activated. Fault LED (marked UNNORMAL) Amber LED that indicates that there is a fault or an incorrect control sequence. e.g. the chuck guard interlock has been activated or the speed control is activated without forward or reverse direction being selected.
- Page 10 (Chuck & safety cover removed for clarity) Leadscrew Selector A round centre rib switch/lever, which allows selection of the leadscrew to ‘Auto feed’, i.e. driven by the change gear train (indicated by a triangular waveform sign), or manually, i.e. driven by the handle on the end of the leadscrew (indicated by a ‘hand’...
- Page 11 Saddle Main casting that is precision machined to marry with the lathe bed. It moves parallel to the main axis. It mounts the traverse slide. The ‘gib’ strip set in the rear of the saddle dovetail maintains the accuracy of the fit of the saddle to the bed.
- Page 13 Gear Change Cover Knob A reeded knob screwed into the front of the headstock, it locates in a slot in the change gear cover, and is used to secure the cover to allow it to be sung open. Tailstock A machined casting that accurately fits to the lathe bed. It carries the tailstock barrel. The tailstock barrel is machined with a No.
- Page 16 Your Cobra Lathe has been factory set and adjusted, however, during its lifetime you may find occasion where the lathe needs adjusting to maintain its accuracy and optimum performance. These adjustments can be made as follows: Saddle & Traverse Slide Adjustment The saddle and the traverse slide are mounted over dovetail sections.
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Page 17: Maintenance
Maintenance The Lathe is a precision tool. In order to maintain this precision and prolong its useful life, it is advised that you follow the recommended daily and periodic maintenance tables printed below. Daily Carry out a visual inspection. Repair any damage immediately. Minor damage to the beds should be taken out with an oilstone. -
Page 18: Oiling Points
Oiling Points... -
Page 19: Change Gear Table
Change Gear Table... -
Page 20: Parts List & Diagrams
Parts List & Diagrams... - Page 21 Item Part Name Change gear cover Cap screw GB818, M4*8 Cap screw GB818, M4*12 Hinge L*B=38*31 Washer 4 Nut M4 Cantilever Nut M6 Washer 6 Compression spring Spacing ring Cover for spindle box Rotate spindle Key 3*6 Protect cover for chuck Cap screw M4*8 Cap screw M5*8 Rear splash guard...
- Page 22 Item Part Name Front oil seal (ring) Key 6*36 Spindle Nut M6 Screw M6*25 Chuck flange Round cap screw M4*12 80mm 3 jaw chuck Handle screw Rotate small handle Handwheel Cap Nut M6 Spring steel Dial Screw base Key 2*18 Tailstock screw Screw M5*8 Screw M5*20...
- Page 23 Item Part Name Gear shaft bracket Nut M5 Support plate Washer Change gear Z=72 Change gear Z=19 Change gear Z=76 Change gear Z=24 Gear sleeve Gear shaft Screw M5*8 Spacing ring Change gear Z=90 Screw M5*25 Bed base Screw M6*35 Unplug shaft Dam-board Screw M4*10...
- Page 24 Item Part Name Power indicator light Fuse box PC board Lock connect Pc board box Screw ST2.9*10 Micro switch Screw ST1.9*10 Power plug Operate change label Switch label Change gear label Main label Scale label(I) Scale label (II) Screw M5*12 Timing belt Change switch Handle bolt...
- Page 25 Item Part Name Ball bearing 61905-2e Spindle base Safety cover Check ring 20 Spindle gear (Z=55) Spacing ring Round nut M24*1.5 Washer 24 Check ring 38 Compression spring Spring support Hand shank Lever cap M8*40 Read out sleeve Spring pin 3*12 Site screw Gear shaft Spacing ring...
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Page 26: Wiring Diagrams
Wiring Diagram 220-240V / 50-60Hz... - Page 27 100-120V / 60Hz...
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Page 28: Ce Document
CE Document...
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