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BD-12G OPERATING MANUAL LATHE Original: Operating Instructions Parts List JPW Tool Group Hong Kong Limited 98 Granville Road, Tsimshatsui East, Kowloon, Hong Kong, PRC www.jettools.com Импортёр в РФ: ООО «ИТА Технолоджи » 105082, Москва, Переведеновский пер., д. 17 www.jettools.ru Made in PRC / Сделано в КНР...
(Original) 1.0 About this Manual This manual is provided by JET, covering the safe operation and maintenance procedures for a JET Model BD-12G Metal Lathe. This manual contains instructions on installation, safety precautions, general operating procedures, maintenance instructions and parts breakdown. The machine has been designed and constructed to provide consistent, long-term operation if used in accordance with the instructions as set forth in this document.
13. Make all machine adjustments or maintenance with the machine unplugged from the power source. 3.0 IMPORTANT SAFETY 14. Remove adjusting keys and wrenches. Form a habit of INSTRUCTIONS checking to see that keys and adjusting wrenches are removed from the machine before turning it on. READ ALL INSTRUCTIONS BEFORE USING THIS LATHE.
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Familiarize yourself with the following safety notices used in this manual: WARNING: This means that if precautions are not heeded, it may result in serious, or possibly even fatal, injury. CAUTION: This means that if precautions are not heeded, it may result in minor injury and/or possible machine damage.
The machine is intended for indoor use. The protection rating of the electrical installation is IP 54. To avoid tipping, the machine must be bolted down with four anchor bolts. If used for other purposes, JET disclaims any real or implied warranty and holds itself harmless from any injury that may result from that use.
L = length; W = width; H= height; D= depth The specifications in this manual were current at time of publication, but because of our policy of continuous improvement, JET reserves the right to change specifications at any time and without prior notice, without incurring obligations.
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4.1 Spindle nose mounting: Figure 4-1: Spindle nose mounting 4.2 Anchor bolt hole pattern: Figure 4-2: Lathe Bed (left) & Stand (right) anchor bolt pattern WARNING: To avoid tipping, the machine must be bolted down with four anchor bolts (not provided).
5.0 Machine Description Figure 5-2: Machine description R ..........Feed speed select knob S ........Feed forward/ off/ reverse Figure 5-1: Machine description T ............Coolant ON/OFF A ..........Machine cabinet stand U ..........Spindle power ON/OFF B ..............Gear box V .......... Spindle forward/reverse C ..............Pulley cover W ............Emergency Stop AA ..........
Chuck guard Failure to comply may result in serious injury. 4-way tool post The BD-12G Metal Lathes are rated at 1~230V, PE, 50Hz power Tool post guard supply. The machines come with a plug designed for use on a circuit with a grounded outlet.
inserted into an appropriate outlet that is properly installed and grounded in accordance with all local codes and ordinances. WARNING: Improper connection of the equipment-grounding conductor can result in a risk of electric shock. Check with a qualified Figure 8-1: Spindle speed setup electrician or service person if you are in doubt as to whether the outlet is properly grounded.
Figure 8-3: Taper turning between centres To turn a taper, offset the tailstock, loosen the locking screws (Z, Fig 8-3) and use screws (Y) to adjust. After taper turning, the tailstock must be returned to its original position. Turn a test piece and adjust until the machine turns a perfect cylinder.
8.7 Live centre (Optional) The live centre (Fig 8-7) is mounted in ball bearings. Its use is highly recommended for speeds above 500 RPM. Figure 8-5: Three jaw universal chuck To hold big diameter stock, a set of OD chuck jaws is supplied. Figure 8-7: Live centre The jaws need to be inserted to the chuck in the correct order.
9.0 Operating Controls Refer to Figure 9-1: R ........Feed speed select lever (I, II, III) S ..........Feed forward/off/reverse T ............. Coolant ON/OFF U ..........Spindle power ON/OFF V ..........Spindle forward/reverse W ............Emergency Stop NN ......Feed shaft / Lead screw select lever Figure 8-9: Follow rest Note: Set the fingers (2) snug but not overly tight.
10.3 Cutting Tool Setup 10.2 Chucking The cutting angle is correct when the cutting edge is in line Do not exceed the max speed of the work holding device. with the centre axis of the work piece. Use the point of the tailstock centre as a gauge and shims under the tool to obtain Jaw teeth and scroll must always be fully engaged.
10.5 Manual turning Example for longitudinal turning: Operation feed/rev feed select knob Apron travel (AA, Fig 10-6), cross travel (BB) and top slide travel (DD) can be operated for longitudinal and cross feeding. Stock removal 0,34mm......III Finishing cut 0.17mm....... II Micro finishing cut 0.085mm......
- When the tool approaches the end of cut, stop the motor and Use a drill chuck with MT3 arbor (option) to clamp centre drills at the same time back the tool out, so that it clears the thread and twisted drills in the tailstock (Fig 10-11) diameter.
11.0 User-Maintenance WARNING: Before any intervention on the machine, disconnect it from electrical supply, pull the mains plug. Failure to comply may cause serious injury. An important security factor is the cleaning of the machine, of bed, carriage and slides, of the floor and the surrounding places.
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C) Cross slide spindle adjustment Remove the top slide and adjust the grub screw (F, Fig 11-4) until the backlash between the spindle and the nut is eliminated. Figure 11-3: Slide adjustment Adjust until slides move freely without play. Figure 11-4: Cross slide spindle adjustment...
Dispose all packaging material in an environmental friendly manner. Dispose coolant in an environmentally friendly manner. Your appliance contains valuable materials which can be recovered or recycled. Please leave it at a specialized institution. 14.0 Available Accessories Refer to the JET price list.
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BD-12G Parts List for Breakdown -2 Index Part Description Size Qty. 201..BD-12G-2-01......GEAR SHAFT....................1 202..BD-12G-2-02......BEARING..............16170......2 203..BD-12G-19......O-RING..............18001400...... 2 204..BD-12G-2-04......NUT DIN 1804............M16×1.5......2 205..BD-12G-20......PIN DIN 1481............Φ3×22......2 206..BD-12G-2-06......COLLAR......................1 207..BD-12G-21......SOCKET HD SCREW..........DIN912M5×8....10 208..BD-12G-2-08......COVER......................1 209..BD-12G-2-09......COLLAR..............
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BD-12G Parts List for Breakdown -2 Index Part Description Size Qty. 250..BD-12G-37......O-RING..............1800690......3 251..BD-12G-2-51......FORK......................1 252..BD-12G-2-52......GEAR......................1 253..BD-12G-38......SNAP RING............... Φ10....... 1 254..BD-12G-2-54......BEARING..............1010......2 255..BD-12G-2-55......GEAR......................1 256..BD-12G-2-56......RIGHT PLUG....................1 257..BD-12G-2-57......DIALS BLOCK....................1 258..BD-12G-2-58......GEARBOX COVER................... 1 259..BD-12G-39......PIN................
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329..BD-12G-51......PULG......................4 330..BD-12G-52......HEX NUT..............DIN439 M6....8 331..BD-12G-53......SOCKET HD SCREW..........DIN 912 M6×30.....4 332..BD-12G-3-32......BLOCK......................1 333..BD-12G-54......SOCKET HD SCREW..........DIN912 M4×8....2 334..BD-12G-55......SOCKET HD SCREW..........DIN 912 M5×6....1 335..BD-12G-3-35......SADDLE......................1 336..BD-12G-3-36......WIPER......................2 337..BD-12G-3-37......PLATE......................2 338..BD-12G-56......SOCKET HD SCREW..........DIN 912 M4×18.....8 339..BD-12G-3-39......WIPER..............
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BD-12G Parts List for Breakdown -3 Index Part Description Size Qty. 350..BD-12G-3-50......HANDWHEEL....................1 351..BD-12G-3-51......WASHER......................1 352..BD-12G-59......SOCKET HD SCREW..........DIN 912 M5×10.....1 353..BD-12G-3-53......SPRING......................1 354..BD-12G-60......SOCKET HD SCREW..........DIN 912 M5×20.....3 355..BD-12G-3-55......KEY................DIN 6885 4X8....1 356..BD-12G-3-56......IEADSCREW....................1 357..BD-12G-3-57......GIB......................... 1 358..BD-12G-61......SOCKET HD SCREW..........
Environmental protection Protect the environment. Your appliance contains valuable materials which can be recovered or recycled. Please leave it at a specialized institution. This symbol indicates separate collection for electrical and electronic equipment required under the WEEE Directive (Directive 2012/19/EC) and is effective only within the European Union.
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