Jesco PRINCE Instruction & Parts Manual

High speed precision lathes

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High Speed Precision Lathes

PRINCE

INSTRUCTION & PARTS MANUAL

(Original instructions)

JESCO MACHINERY LTD.

P.O. BOX 14-9, TAIPING,

TAICHUNG, TAIWAN, R.O.C.

TEL: 886-4-22702676

FAX: 886-4-22706295

E-MAIL: jesco1@ ms22.hinet.net

Web Site: www.jesco.com.tw

File No.

Rev.

Date

Editor

Approval

Comments

JCET-0001

2009.10

Ken.

Table of Contents

Summary of Contents for Jesco PRINCE

Page 1 ® High Speed Precision Lathes PRINCE INSTRUCTION & PARTS MANUAL (Original instructions) JESCO MACHINERY LTD. P.O. BOX 14-9, TAIPING, TAICHUNG, TAIWAN, R.O.C. TEL: 886-4-22702676 FAX: 886-4-22706295 E-MAIL: jesco1@ ms22.hinet.net Web Site: www.jesco.com.tw File No. Rev. Date Editor Approval Comments JCET-0001 2009.10...
Page 2 OPERATOR WITH WELL TRAINING AND SKILLED OPERATOR Requirements as following: Just the one whom had read the operation manual and really understand it thoroughly or the one whom had under the training by original manufacturer are authorized to operating this machine. Please read and understand the operating manual before work on this machine.
Page 3: Expected Use And Limits Of Use
EXPECTED USE AND LIMITS OF USE The machine is designed only for cold metal cutting. Other purpose of working is prohibited. The materials, such as wood, glass, metal powder, ceramic and poisonous materials, etc are not allowed to be used on this machine.
Page 4: Table Of Contents
Table of Content EXPECTED USE AND LIMITS OF USE ..............2 PHYSICAL ENVIRONMENT AND OPERATING CONDITIONS........ 4 ELECTRICALLY SUPPLY ..................4 MAIN SPECIFICATIONS ................... 5 CONVENTIONAL LATHE Overall drawing .............. 6 TOOL INFORMATION ....................7 LIFTING MACHINE BEFORE UNPACKING ............. 8 UNPACKING AND LIFTING ..................
Page 5: Physical Environment And Operating Conditions
PHYSICAL ENVIRONMENT AND OPERATING CONDITIONS The machine is designed for not using at the potentially explosive environment. Generally, the machine should be installed under the following conditions: a. The minimum requirement for all electrical equipment is correct operation between air temperature of +5℃ and +45℃. b.
Page 6: Main Specifications
MAIN SPECIFICATIONS PRINCE 1330/1340 MODEL 1330 1340 Height of center 165mm. (6.5") Swing over bed 330mm(13”) Distance between centers 750mm(30”) 1000mm. (40") Swing over cross slide 190mm(7.5”) Swing in gap 495mm. (19.5") Width of gap in front of faceplate 150mm. (6")
Page 7: Conventional Lathe Overall Drawing
CONVENTIONAL LATHE Overall drawing Model Prince 1330 Prince 750 1550 1175 Prince 1340 Prince 1000 1800 1175 Studturn 1430 Studturn 750 1610 1223 Studturn 1440 Studturn 1000 1864 1223 Champion 1530 Champion 760 1955 1031 1232 Champion 1540 Champion 1000...
Page 8: Tool Information
General 26160 General 2600-4000 6425 2000 1955 General 30120 General 3000-3000 5425 2000 1955 General 30160 General 3000-4000 6425 2000 1955 TOOL INFORMATION MODEL Tool shank(mm) Tailstock drill Tailstock drill Tailstock drill A(mm) B(mm) Max. Weight(kg) PRINCE STUDTURN CHAMPION MAJOR GENERAL TRAINER KNIGHT...
Page 9: Lifting Machine Before Unpacking
LIFTING MACHINE BEFORE UNPACKING Normally, each lathe was packed with seaworthy strong wooden case. Before unpacking the wooden case to lifting or unloading the lathe, must be ensure the following notes: 1 .the capacity of lift equipment is adequate for the machines. 2.
Page 10: The Forklift Truck Capacity
THE FORKLIFT TRUCK CAPACITY T(ton) 1350 1200 1100 1820 1500 1250 2450 1800 1850 2450 1800 2000 Please pay attention to transport and lift this high precision machine for avoiding any strong extrusions or collisions. The lifting capacity of forklift truck must be sufficient for the machine. Table shows the forklift truck capacity.
Page 11 LlFTING PREPARATION AND SAFETY CHECK 6.0nly a hoist or crane is recommended for lifting the lathe. 1 .Remove all loose items of equipment and accessories Fork lift blades should never be put under the lathe for from lathe. lifting. 2. Move the tailstock and carriage assembly to the far end 7.
Page 12: Operating Safety Precautions
OPERATING SAFETY PRECAUTIONS 1. ARE YOU PROPERLY TRAINED PERSONNEL TO USE THIS LATHE? 2. READ THIS INSTRUCTION MANUAL CAREFULLY BEFORE OPERATION. 3. ENSURE YOU KNOW HOW TO STOP THE LATHE BEFORE STARTING IT 4. ENSURE YOU ARE IN GOOD HEALTH AND SPIRIT TO OPERATE THE LATHE. 5.
Page 13: Noise Level
NOISE LEVEL Equivalent A-weighted Sound pressure level according to EN ISO 3746: 75.6 dB(A) for,MJ 2260 Path 2 Path 3 Path 1 Reference Reflecting plane NOTE: Uncertainty, K in decibels: 4.0 dB (A) according to EN ISO 4871 The figure quoted is emission levels and are not necessarily safe working levels. Whilst there is a correlation between the emission and exposure levels, this cannot be used reliably to determine whether or not further precautions are required.
Page 14: Accidents At Lathes By Using Emery Cloth
ACCIDENTS AT LATHES BY USING EMERY CLOTH DANGER: Any strips of Emery Cloth there is a Danger of Trapping. HAZARDS A high proportion of all accidents at metalworking lathes involve the use of Emery Cloth and result in injuries such as broken occasionally amputated fingers.
Page 15 If the required tolerance is only achievable by the use of Emery Cloth against rotating components, then the Emery Cloth should be applied using either: (a) A backing board of good quality wood as figure (a) Fig a (b) A toolpost onto which the Emery Cloth may be placed as figure (b); Fig b (c) A 'nutcracker' consisting of two backing boards which are lined with Emery Cloth and joined at end and shaped so that they may encompass the surface to be linished as figure (c) ;...
Page 16: Operation
OPERATION LEGEND 1. HEADSTOCK 17. CROSS/LONGITUDINAL FEED KNOB 2. MAIN SPINDLE & CHUCK 18. FEED ENGAGEMENT KNOB 3. CARRIAGE 19. CARRIAGE HANDWHEEL 20. CROSS SLIDE HANDWHEEL 4. CROSS SLIDE 5. TOOLPOST 21. CHIP PAN 6. COMPOUND SLIDE 22. QUICK CHANGE GEAR BOX 23.
Page 17: Foundation Plan
FOUNDATION PLAN...
Page 18 ANCHOR BOLT DIAGRAM...
Page 19 CONNECTION OF EXTRACTION SYSTEM...
Page 20: Illustration Of Hazard Region
ILLUSTRATION OF HAZARD REGION Arrow shows the directions of movement in the danger area.
Page 21: Illustration Of Safety Device Position
ILLUSTRATION OF SAFETY DEVICE POSITION Item Name Description Power switch door Switch on: Power is supplied, and machine will be in a (interlock) controlled condition. Switch off: Power is not supplied, and machine will stop at once. Safety door lock switch. Machine can’t be started if door is opened.
Page 22 THE POSITION OF WARNING AND SIGN Label & Plates JESCO CE nameplate JESCO MACHINERY LTD. P.O.BOX 14-9, Taiping (411), Taichung, Taiwan. TEL : 886-4-22702676 FAX : 886-4-22706295 E-mail : jesco1@ms22.hinet.net http : //www.jesco.com.tw Electric shock! Operate carefully. On the whipping hazard and stating that exposed stock bars shall be guarded.
Page 23: Cleaning Or Levelling Lathe
CLEANING OR LEVELLING LATHE WARNING: DISCONNECT ALL ELECTRIC POWER BEFORE CLEANING, LEVELLING OR MAINTENANCE LATHE. CLEANING Before operating any controls, remove the anticorrosion coating from all slideways and the end gear train; see Fig. 1, using white spirit or Kerosene. DO NOT USE CELLULOSE SOLVENTS FOR CLEANING AS THEY WILL DAMAGE THE PAINT FINISH.
Page 24 ELECTRIC SUPPLY CONNECTION Input wires should be connected to main terminal box below the electrical box in back of headstock on headend plinth. The connecting wires/cable should be big enough for more than 3HP motor as well as short from the power source. Main motor rotation must be clockwise viewed from the pulley end.
Page 25 LUBRICATION CHECKS Before operating the machine and trouble-free operation keep the lathe clean and regularly lubricated are very important. The oil bath designed headstock, feed gearbox and apron; the self- splash lubricated all the spindle, shafts, gears and bearing. The reservoirs contained oil should be reach to the level mark on oil sight windows.
Page 26: Chucks And Chuck Mounting
chuck for work. CHUCKS AND CHUCK MOUNTING When fitting chucks or faceplates, ensure that the spindle A reference mark should be made on each correctly fitted and chuck tapers are scrupulously clean and that all chuck or faceplate to coincide with the reference mark cams lock in the correct positions;...
Page 27: Chuck Jaw Detail
CHUCK JAW DETAIL Top jaws should be designed to hold the workpiece as close to the chuck face as possible. Excessive jaw height reduces the effective gripping force available and is detrimental to accuracy. As a general rule, the height of the grip point above the chuck face should not exceed one quarter of the chucks’...
Page 28 Fig.8 LATHE CONTROLS (See Fig. 8) 4. Apron, sliding & surfacing feeds 1. Spindle speed select levers. 5. Footbrake. 2. Control panel. 6. Spindle rotation control lever 3. Gearbox, threads and feed. CONTROL PANEL (See Fig.9) Except the lathe isolator switch, all the electrical controls are fitted into front face between headstock and gearbox.
Page 29: Speed Controls (Standard Lathes)
Fig10 SPEED CONTROLS (Standard lathes) SPINDLE ROTATION Selected by the controls lever-A (Fig.10). The apron gated WARNING: NEVER SHIFT SPEED CONTROL LEVERS B&C lever-A for Forward-off-Reverse selections. AND FEED LEVERS D&E ON THE HEADSTOCK WHILE THE SPINDLE IS ROTATING. RECOMAND TO PRESS THE After started the main motor running, to move gate lever-A JOGGING BUTTON ON PANEL FOR HELPFUL THE LEVER out and downward to engage forward rotation of spindle;...
Page 30: Varispeed Lathes
Fig.11 VARISPEED LATHES SPINDLE SPEEDS A spindle speed select lever-B on the headstock provides SPEED ROTATION High and Low speed ranges selection. STOP THE Same as the standard model selected by the control SPINDLE first and then rotates the select lever-B to lever-A, which provided Forward-off-Reverse selection.
Page 31: Quick Change Gear Box
QUICK CHANGE GEAR BOX The quick change gear mechanism determines the rate or rotation of the lead screw and the feed rod in relation to the spindle speeds for threading, turning and facing operations. The range of feeds and threads, there selection and the positions of the knobs for each feed or thread are shown on the machine chart.
Page 32 FOR METRIC GEAR BOX. According to chart Fig 16, turn the selector knob (D) on headstock and (6) on gear box to obtain the desired threads or feeds cutting, then the change knob (5) on gear box to choose thread or feeds cutting. Meantime, ensure the end gear train engagement U,V,W,X,Y,Z, according to chart also.
Page 33: Carriage
CARRIAGE The function of the carriage is to rigidly support the cutting tool and move it along or across the bed for turning, facing, boring or threading operations. POWER FEED For longitudinal power feed pull out the CROSS/LONGITUDINAL FEED KNOB and pull the FEED ENGAGEMENT KNOB IN THE APRON towards you.
Page 34 The threading dial may not be used for Module. D.P. and metric threads cutting on Imperial Leadscrew lathe or imperial threads cutting on Metric Leadscrew lathe. To cut these threads, the half-nut must be kept closing on the leadscrew from the start of the thread until the end. When the end of the thread is reached, the tool must be quickly withdrawn from the workpiece, while stopping the spindle.
Page 35: Adjustment
ADJUSTMENT 1.ADJUSTMENT OF HEADSTOCK When the centerline of main spindle not alignment with the bedway, it could be adjusted by fixing bolts (A) and adjusting bolts (B) shown as follow figure. If the headstock is needed to move forward, loose the fixing bolt (B), fasten the adjusting bolts (B) to proper position, then, fasten the fixing bolts (A) again.
Page 36 4.REPLENISHMENT OF CAMLOCK When the Camlock (A) is broken, dismantle the cap screw (B), springs (C) and camlock set pin (D); and take out the damaged camlock and renew it. After completion of repair work, assemble them again. 5.ADJUSTMENT OF AXIAL DISPLACEMENT OF LEAD SCREW As you discover the leadscrew is in loose status, you should first loose the external end nut (A) which are located on the...
Page 37 7.ADJUSTMENT OF THE CLEARANCE OF HAND WHEEL ON THE APRON Loose the screw (A) first and adjust hand wheel set bushing (B) to proper position, then re-tighten the set screw. 8.ADJUSTMENT OF THE BACKLASH OF CROSS SLIDE SCREW (1) Loosen off the cross slide nut fixing screw (B), free turning the cross slide handwheel clockwise to move out the nut as shown on (8-1), then adjustable screw (A) on the cross feed nut will be adjusted and fastened again.
Page 38 10.ADJUSTMENT OF CROSS SLIDE (COMPOUND SLIDE ALSO) In order to eliminate the excess clearance caused by the friction of relative motion between carriage and cross slide, or gib adjusting screw in loose status. First loose the adjusting screw (b) at the front. When gib gas been adjusted to proper position, complete the adjustment work by re-tightening both adjusting screws.
Page 39: Preventive Maintenance
(D) Safety affairs: ISOLATE MACHINE WHEN PREVENTIVE MAINTENANCE LEAVING IT UNATTENDED. STOP RUNNING FOR CHANGING SPINDLE SPEEDS. NOT ALLOWED TO LEFT ANY TOOLS AND DAILY INSPECTION PRODUCTS ON LATHE. In principle, the daily inspection of lathe is carried out on Check after operation basis of each shift.
Page 40 SEMI-YEARLY INSPECTION YEARLY INSPECTION Exchange oil in headstock, feed gearbox and apron: More carefully to do the semi-yearly inspections as the To drain and cleanup the mentioned oil reservoirs and above mentioned. replenish with fresh recommend lubricating oil. Repaint: After one-year operation, recommend (Recommend an oil change within 3 months for new repainting the machine with the same color.
Page 41: Trouble Shooting
TROUBLE SHOOTING TROUBLE REMEDY PROBABLE CAUSES 1 .Oil level In headstock Is too low or Replenish or discharge the oil to the too much. proper level. 2.Quality and viscosity of oil is wrong. Replace the oil with recommended type. 3.Oil is too dirty. Replace the oil..
Page 42 TROUBLE PROBABLE CAUSES REMEDY Bending on long workpiece 1. Feed value too large. Reduce feed value. cutting. 2. Workpiece too thin or too long. Use follow rest to support and adjust tool position. Accuracy fails on machine. Recheck the accuracy of machine and Failure on products accuracy.
Page 43 TROUBLE PROBABLE CAUSES REMEDY 1. Circuit not complete. Check switch, leads, fuse etc, replace or reconnect properly. Fails to start. 2. Power may be off. Check cable connection. 3. Overload relay off. Reset overload relay. 1. Voltage below what is rated. Check power source voltage.