This .pdf document is bookmarked Operation and Maintenance Instructions ZX-Series Large Bore Lathes Models GH-1440ZX GH-1640ZX/1660ZX GH-1860ZX/1880ZX GH-2280ZX Model GH-1440ZX shown * For ZX-Series Lathes Parts List & Electrical Diagrams, see document M-321910-1 JET 427 New Sanford Road LaVergne, TN 37086 Ph.: 800-274-6848 www.jettools.com Part No.
1.0 Warranty and service JET warrants every product it sells against manufacturers’ defects. If one of our tools needs service or repair, please contact Technical Service by calling 1-800-274-6846, 8AM to 5PM CST, Monday through Friday. Warranty Period The general warranty lasts for the time period specified in the literature included with your product or on the official JET branded website. • JET products carry a limited warranty which varies in duration based upon the product.
2.0 Table of Contents 1.0 Warranty and service ..................................................................................................................................... 2 2.0 Table of Contents ........................................................................................................................................... 3 3.0 IMPORTANT SAFETY INSTRUCTIONS ....................................................................................................... 4 4.
3.0 IMPORTANT SAFETY INSTRUCTIONS 1. Read and understand the entire owner’s manual before attempting assembly or operation. 2. Read and understand the warnings posted on the machine and in this manual. Failure to comply with all of these warnings may cause serious injury. 3. Replace the warning labels if they become obscured or removed. 4. This lathe is designed and intended for use by properly trained and experienced personnel only.
26. Maintain tools with care. Keep cutting tools sharp and clean for the best and safest performance. Follow instructions for lubricating and changing accessories. 27. Do not attempt to adjust or remove tools during operation. 28. Turn off the machine and disconnect from power before cleaning. Use a brush to remove shavings or debris — do not use your hands. 29. Do not stand on the machine. Serious injury could occur if the machine tips over. 30. Never leave the machine running unattended.
Specifications were current at the time this manual was published, 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. 5.0 Specifications 5.1 Specifications: 14-inch lathe Model Number ...................................................................................................................................... GH-1440ZX Stock Number ..................................................
5.2 Specifications: 16-inch lathe Model Number ............................................................................... GH-1640ZX................................... GH-1660ZX Stock Number .......................................................................................321930.......................................... 321940 Capacities: Swing over Bed (in.) ......................................................................................16..................................................
5.3 Specifications: 18-inch lathe Model Number ............................................................................... GH-1860ZX................................... GH-1880ZX Stock Number .......................................................................................321960.......................................... 321970 Capacities: Swing over Bed (in.) ......................................................................................18..................................................
5.4 Specifications: 22-inch lathe Model Number ...................................................................................................................................... GH-2280ZX Stock Number ............................................................................................................................................. 321980 Capacities: Swing over Bed (in.) .............................................................................................................................
6.0 General Description and Nomenclature Figure 2 – General Description of ZX Lathes Bed and stand Carriage The lathe bed (A) is made of cast iron with low vibration and high rigidity. Two precision-ground vslideways (B), reinforced by supersonic frequency hardening, offer precision guidance for the carriage. The main drive motor is mounted in the stand (C) below the gearbox. The carriage assembly is composed of the Apron, the Saddle, the Cross Slide, the Compound Rest, and the four-way Tool Post.
Follow rest (T) Four-Way Tool Post (K). The tool post is a turret design, mounted to the compound rest. It holds up to four tools simultaneously, and includes an indexing function. (Always use a minimum of two clamping screws when installing a cutting tool.) The traveling follow rest is mounted to the saddle, and thus follows the movement of the turning tool. Only two fingers are required as the place of the third is taken by the turning tool.
1 7.0 Unpacking Open shipping container and check for shipping damage. Report any damage immediately to your distributor and shipping agent. Do not discard any shipping material until the Lathe is assembled and running properly. Compare the contents of your container with the following parts list to make sure all parts are intact. Missing parts, if any, should be reported to your distributor. Read the instruction manual thoroughly for assembly, maintenance and safety instructions. 7.
8.1 Leveling the lathe Read and understand the entire contents of this manual before attempting set-up or operation! Failure to comply may cause serious injury. It is imperative that the lathe be on a level plane; that is, where headstock and tailstock center points remain aligned throughout the tailstock travel, with the bed ways absent of twist and thus parallel to the operational center line. 8.0 Installation 1. Finish removing all crate material from around the lathe. 2.
• If the index mark (A) is not between the two arrows, i.e. the cam turns beyond the indicator arrows, then remove the chuck and turn the camlock stud IN one full turn. 8.3 Chuck preparation (three-jaw) Read and understand all directions for chuck preparation. Failure to comply may cause serious personal injury and/or damage to the lathe. • If a camlock will not engage, remove the chuck and turn the camlock stud OUT one full turn. The three-jaw scroll chuck is shipped pre-installed on the lathe.
9.0 Maintenance/Lubrication Lathe must be serviced at all lubrication points and all reservoirs filled to operating level before the lathe is put into service. Failure to comply may cause serious damage to the lathe. The ZX series lathe is shipped with oil in the reservoirs. Coolant is not included. Use clean lubricants and check levels often, including before each working shift. To ensure proper lubrication, oil levels should not be less than the center of the oil sight glass.
Figure 13 8. Figure 11 Saddle – Daily lubricate ball oiler (A, Figure 12) on handwheel shaft with SAE 20W. V-Belts – Regularly check and adjust the tightness of the v-belts to prolong their service life. See section 14.6, Belt replacement and adjustment. 10.0 Coolant preparation The anti-dust felt on both ends of the saddle where it contacts the ways should be cleaned weekly with kerosene. If the felt becomes damaged, replace it. Follow coolant manufacturer’s recommendations for use, care and disposal.
11.1 Conversion to 460 volt operation 12.0 Controls Disconnect machine from power source. Failure to do so may cause serious injury. Main Motor: Change the wires according to the diagram on the outside of the motor junction box. Transformer: Open electrical panel on rear of machine on the headstock side. Switch wire from 230V terminal to 460V terminal as outlined on the transformer. Coolant Pump: Open access panel on the base at the tailstock end.
12. Cross Slide Lock (Q, Figure 16): Lever located on left side of cross slide. Turn clockwise to lock and counterclockwise to unlock. 13. Carriage Lock (R, Figure 16): Located on top right of carriage. Turn clockwise to lock, counterclockwise to unlock. Carriage lock must be loose before moving carriage or damage to lathe may occur. 14. Compound Rest (S, Figure 16) is located on top of cross slide and can be rotated 360°.
22. Tailstock Off-Set Adjustment (D, Figure 17): Two hex socket cap screws located on the tailstock base are used to off-set the tailstock for cutting tapers. Loosening one screw while tightening the other will off-set the tailstock. Do not clamp the tailstock lock handle when adjusting. • Never exceed maximum speed limitation of the work holding device. • Before starting spindle, check that each handle or lever is at correct position to ensure normal engagement of gears.
3. Select desired thread using levers (B/C/D/E, Figure 22). 4. Set selector lever (A, Figure 23) to correct position (neutral). 5. Engage the half nut lever (B, Figure 23). 6. Make a test cut with scrap material and check results before cutting regular material. Figure 21 – Improper setups 13.1 Tool setup The cutting angle is correct when the cutting edge is in line with the center axis of workpiece.
14.2.4 Half Nut Gib screws are located on right side of apron (C, Figure 26). Loosen the jam nuts and rotate the screws clockwise until any backlash is corrected. Then re-tighten nuts. Figure 24 – Chuck jaw reversal 14.2 Gib adjustments After a period of time, some moving components may need adjustment for play (or “backlash”) due to wear. Do not overtighten gib screws as this can hasten wear to components. Figure 26 – Half nut gib adjustment 14.2.1 Saddle 14.
14.5 Installing gap bridge 1. Clean the bottom and the ends of the gap bridge thoroughly. 2. Set gap bridge in place and align the ends. 3. Loosen the nuts on the locating pins and push down through the gap into the lathe bed. 4. Replace four hex socket cap screws and tighten alternately until all are snug. 14.6 Belt replacement/adjustment 1. Disconnect machine from power source. 2. Open end gear cover, remove lower rear cover and lower side cover. This will expose the motor and v-belts. 3.
4. Pivot the collar on its hinge and position steady rest around workpiece. 5. Firmly tighten hex nut (A). 6. Set the fingers snugly to work piece and secure by tightening locking knobs. Fingers should be snug but not overly tight. Always lubricate the fingers sufficiently with grease before operating. 14.12 Carriage stops Adjust each stop (Figure 32) by loosening two set screws, and sliding it along the rod. Rotate the stop so that the raised area is upward to contact the carriage.
15.0 Lubrication schedule and general maintenance Regularly scheduled maintenance is crucial to ensure a long service life for your machine. The schedule below shows general cleaning, lubrication points and coolant replacement information for the ZX Series Lathes. Push stop button and power off before lubricating. Follow local regulations for disposal of used coolant/lubricants. Minimize direct skin contact with lubricants and coolants, and wear eye protection when pouring coolant in case of splash.
16.0 Reference tables 16.
THREADING CHART IN INCH 26
THREADING CHART mm METRIC MP MODULE PITCH 27
THREADING CHART DP DIAMETRAL PITCH 427 New Sanford Road LaVergne, Tennessee 37086 Phone: 800-274-6848 www.jettools.
This .pdf document is bookmarked Parts List and Electrical Diagrams ZX-Series Large Bore Lathes Models GH-1440ZX GH-1640ZX/1660ZX GH-1860ZX/1880ZX GH-2280ZX Model GH-1440ZX shown * For ZX-Series Lathes Operating Instructions, see document M-321910 JET 427 New Sanford Road LaVergne, Tennessee 37086 Ph.: 800-274-6848 www.jettools.com Part No.
Table of Contents 1.1 Stand Assembly – Exploded View ...................................................................................................... 3 1.2 Stand Assembly – Parts List ............................................................................................................... 4 2.1 Brake Assembly – Exploded View ...................................................................................................... 6 2.2 Brake Assembly – Parts List ....................................
1.
1.2 Stand Assembly – Parts List Index No Part No Description Size Qty 1 .......... ZX-01101A .................... Pulley .................................................................. .................................... 1 ............ GH2280ZX-01101 ......... Pulley (for 2280ZX) .............................................. .................................... 1 2 .......... ZX-S2 ............................ Cylindrical End Set Screw.................................... M8x16 .....................
Index No Part No Description Size Qty 37 ........ TS-1540072 .................. Hex Nut ................................................................ M10 ............................. 4 38 ........ TS-1550071 .................. Flat Washer .......................................................... M10 ............................. 4 39 ........ TS-1491041 .................. Hex Cap Bolt ........................................................ M10x30 ....................... 4 80 ........ ZX-01716A-G .
2.
2.2 Brake Assembly – Parts List Index No Part No Description Size Qty 40 ........ ZX-22101-G .................. Fork ...................................................................... .................................... 1 41 ........ ZX-S41 .......................... Spring Pin ............................................................. 8x40 mm ..................... 1 42 ........ ZX-22703 ...................... Butt Nail Support .................................................. .................
3.
3.2 Bed Assembly – Parts List Index No Part No Description Size Qty 1 .......... ZX-01104A-G ................ Bed (for 1440/1640/1840ZX) ............................... .................................... 1 ............ ZX-01104B-G ................ Bed (for 1460/1660/1860ZX) ............................... .................................... 1 ............ ZX-01104C-G ................ Bed (for 1880/2280ZX) ........................................ .................................... 1 2 ..........
Index No Part No Description Size Qty ............ ZX-01709BN ................. New Feed Rod (for 60” models, serial # 010618ZX350 and higher) ........ 1 ............ ZX-01709C .................... Feed Rod (for 80" models, serial # 010611ZX349 and lower) .................. 1 ............ ZX-01709CN ................. New Feed Rod (for 80" models, serial # 010618ZX350 and higher) ........ 1 34 ........ ZX-B34 .......................... Taper Pin ...........................................................
4.
4.2 Headstock Assembly I – Parts List Index No Part No Description Size Qty 1 .......... ZX-02306 ...................... Round Sign Plate (serial # 160401ZX3031 and lower) ............................ 1 ............ C6136ZK-02304-1......... Round Sign Plate (serial # 160410ZX3032 and higher) ........................... 1 1a ....... ZX-02306 ...................... Round Sign Plate (serial # 160401ZX3031 and lower) ............................ 2 ............ 14~18R-02303-2 ...........
Index No Part No Description Size Qty 55 ........ ZX-02732/2 ................... Gear ..................................................................... 1.5m36T ...................... 1 56 ........ ZX-H56 .......................... Ring Seal.............................................................. 40x3.1 mm .................. 1 57 ........ ZX-02110 ....................... Bushing ................................................................ .................................... 1 58 ........
Index No Part No Description Size Qty 92 ........ ZX-02505 ...................... Paper Gasket ....................................................... .................................... 1 93 ....... TS-1531012 .................. Slotted Pan Head Screw (serial #160401ZX3031 and lower) M3x6 ........ 7 ............ GB2672-M3x6 ............... Screw (serial #160410ZX3032 and higher) ......... M3x6 ......................... 11 94 ........ ZX-H94N ....................... Pin ................................
5.
5.2 Headstock Assembly II – Parts List Index No Part No Description Size Qty 95 ........ ZX-02107 ...................... Pulley ................................................................... .................................... 1 96 ........ TS-1503061 .................. Socket Cap Screw ............................................... M6x25 ......................... 4 97 ........ ZX-02106 ...................... Bearing Cover ...................................................... ...................
Index No Part No Description Size Qty 143 ...... ZX-H143 ........................ Flat Head Set Screw ............................................ M8x12 ......................... 2 144 ...... ZX-02755X .................... Gear (for 14” models)........................................... 2.5m31T ...................... 1 ............ ZX-02755X/6P............... Gear (for 16”/18”/22” models) .............................. 2.5m22T ...................... 1 145 ...... ZX-H133 ........................ C-Clip .
6.
6.2 Headstock Assembly III – Parts List Index No Part No Description Size Qty 152 ...... ZX-02704 ...................... Spindle ................................................................. .................................... 1 153 ...... ZX-H153 ........................ Flat Key ................................................................ 10x8x40 mm ............... 1 154 ...... ZX-H154 ........................ Flat Key ................................................................
7.
7.2 Headstock Assembly IV – Parts List Index No Part No Description Size Qty 214 ...... ZX-08302A-G ................ Back Cover (for 14” models) ................................ .................................... 1 ............ ZX-08302B-G ................ Back Cover (for 16” models) ................................ .................................... 1 ............ ZX-08302C-G ................ Back Cover (for 18” models) ................................ .................................... 1 .......
8.
8.2 Change Gear Box Assembly I – Parts List Index No Part No Description Size Qty 1 .......... ZX-08101-G .................. Change Gear Box Casting ................................... .................................... 1 2 .......... ZX-08108-G .................. Front Cover .......................................................... .................................... 1 5 .......... ZX-05104C-G ................ Hand Wheel ......................................................... ....................
9.
9.2 Change Gear Box Assembly II – Parts List Index No Part No Description Size Qty 3 .......... ZX-08104-G .................. End Cover ............................................................ .................................... 4 4 .......... ZX-08103-G .................. Bearing Support ................................................... .................................... 1 19 ........ ZX-08107 ...................... Gear .....................................................................
10.
10.2 Quick Change Gear Box I – Parts List Index No Part No Description Size Qty 1 .......... KLS1740A-05152-G ...... Upper Cover ......................................................... .................................... 1 2 .......... TS-1503071 .................. Hex Socket Cap Screw ........................................ M6x30 ......................... 2 6 .......... TS-1504031 .................. Hex Socket Cap Screw ........................................ M8x16 ....................... 10 7 ...
Index No Part No Description Size Qty 61 ........ ZX-05114 ....................... Sleeve .................................................................. .................................... 1 62 ........ ZX-05734 ...................... Lever Shaft ........................................................... .................................... 1 63 ........ ZX-05503 ...................... Gasket .................................................................. ....................................
11.
11.2 Quick Change Gear Box II – Parts List Index No Part No Description Size Qty 81 ........ ZX-05104 ...................... Middle Bearing Support ....................................... .................................... 2 82 ........ ZX-Q82 .......................... Taper End Set Screw ........................................... M10x16 ....................... 2 83 ........ ZX-B23 .......................... C-Clip ................................................................... 20 mm ...........
12.
12.2 Quick Change Gear Box III – Parts List Index No Part No Description Size Qty 66 ........ ZX-Q66 .......................... Taper Pin .............................................................. 5x35 mm ..................... 6 83 ........ ZX-Q83 .......................... C-Clip ................................................................... 20 mm ......................... 3 84 ........ ZX-Q84 .......................... C-Clip ...................................................................
13.
13.2 Apron Assembly I – Parts List Index No Part No Description Size Qty 1 .......... TL06101-G .................... Apron Casting ...................................................... .................................... 1 2 .......... TL06103-G .................... Bottom Cover ....................................................... .................................... 1 3 .......... TS-1540072 .................. Hex Nut ................................................................ M10 ...........
Index No Part No Description Size Qty 126 ...... TL06726 ........................ Worm (serial # 010611ZX349 and lower) ............ .................................... 1 ............ TL06726N ..................... New Worm (serial # 010618ZX350 and higher) .. .................................... 1 127 ...... TL06122 ........................ Worm Support (serial # 010611ZX349 and lower) .................................... 1 ............ TL06122N .....................
14.
14.2 Apron Assembly II – Parts List Index No Part No Description Size Qty 38 ........ ZXB23 ........................... C-Clip ................................................................... 20 mm ......................... 1 39 ........ BB6204 ......................... Ball Bearing .......................................................... 20x47x14 .................... 1 40 ........ TL06705 ........................ Gear ..................................................................... 2m65T ....
Index No Part No Description Size Qty 98 ........ ZXA98 ........................... Flat Head Set Screw (serial #120520ZX2472 and higher)..M10x16 ........ 1 99 ....... ZX06737E ..................... Bracket (serial #120520ZX2472 and higher) ....... .................................... 1 100 ..... ZX06741E ..................... Plug (serial #120520ZX2472 and higher) ............ .................................... 1 101 ..... ZX06739E-G ................. Gear shaft (serial #120520ZX2472 and higher) .. .
15.
15.2 Apron Assembly III – Parts List Index No Part No Description Size Qty 141 ...... ZX-A141 ........................ Half Round Head Screw ...................................... M6x18 ......................... 1 142 ...... ZX-11704 ....................... Washer ................................................................. .................................... 1 143 ..... ZX-11301 ....................... Dial（serial #160401ZX3031 and lower） ........... .................................... 1 .......
16.
16.2 Carriage Assembly – Parts List Index No Part No Description Size Qty 1 ......... ZX K04101A .................. Saddle Casting (for14/16/18″models) ................ .................................... 1 ............ ZX K04101B .................. Saddle Casting (for14/16/18″models) ................ ...................................... ............ ...................................... (serial #160410ZX3032 and higher ..................... .................................... 1 ............
Index No Part No Description Size Qty 50 ........ ZX-04111 ....................... Sleeve .................................................................. .................................... 2 51 ........ TS-1490041 .................. Hex Cap Bolt ........................................................ M8x25 ......................... 2 52 ........ ZX-04109 ...................... Screw Support ..................................................... .................................... 1 ............
17.1 Micro Carriage Stop – Exploded View 17.2 Micro Carriage Stop – Parts List Index No Part No Description Size Qty 1 .......... ZX-09709 ...................... Dial ....................................................................... .................................... 1 2 .......... ZX-MS2 ......................... Pin ........................................................................ B4x8 ............................ 1 3 .......... ZX-09708 ...................... Axle ....................
18.
18.2 Carriage Stop Assembly – Parts List Index No Part No Description Size Qty 1 .......... ZX-26101-G .................. Left Support.......................................................... .................................... 1 2 .......... TS-1504041 .................. Hex Socket Cap Screw ........................................ M8x20 ......................... 4 2a ........ GB5287-8 ...................... Thick Washer ....................................................... 8 mm ...................
19.
19.2 Quick Change Tool Post – Parts List Index No Part No Description Size Qty 1 .......... ZX-04103A .................... Revolving Plate (for 14” models) ......................... .................................... 1 ............ ZX-04103B .................... Revolving Plate (for 16” models) ......................... .................................... 1 ............ ZX-04103C .................... Revolving Plate (for 18” models) ......................... .................................... 1 ...
20.
20.2 Tailstock Assembly I – Parts List Index No Part No Description Size Qty 1 .......... ZX-03711-G ................... Handle .................................................................. .................................... 1 2 .......... ZX-03717-G .................. Lever Support....................................................... .................................... 1 3 .......... ZX-03718 ...................... Washer ................................................................. .....
21.
21.2 Tailstock Assembly II – Parts List Index No Part No Description Size Qty 8 .......... ZX-T08 .......................... Flat End Set Screw (except in 14” models) ......... M6x18 ......................... 4 9 ......... ZXT09E ......................... Spring (serial # 120120ZX2425 and higher) ........ .................................... 1 18 ........ ZX-03714 ...................... Bearing Support (except in 14” models) .............. .................................... 4 19 ........ ZX-03715 ....
22.
22.2 Steady Rest Assembly – Parts List Index No Part No Description Size Qty 1 .......... ZX-10702D .................... Screw (for 14” models)......................................... .................................... 3 ............ ZX-10701E .................... Screw (for 16” models)......................................... .................................... 3 ............ ZX-10701F .................... Screw (for 18” /22”models) .................................. ...............................
23.
23.2 Follow Rest Assembly – Parts List Index No Part No Description Size Qty 1 .......... ZX-10710 ...................... Screw ................................................................... .................................... 2 2 .......... ZX-10704 ...................... Nut........................................................................ .................................... 2 3 .......... ZX-10707 ...................... Sliding Sleeve .....................................................
24.
24.2 Coolant & Work Light Assembly – Parts List Index No Part No Description Size Qty 1 .......... RT-001A ........................ Rubber Tube (for 1440/1640/1840ZX) ................. ID 1/2"x1280mm ......... 1 ............ RT-001B ........................ Rubber Tube (for 1460/1660/1860ZX) ................. ID 1/2"x1780mm ......... 1 ............ RT-001C ........................ Rubber Tube (for 1880/2280ZX) .......................... ID 1/2"x2280mm ......... 1 2 .......... ZX-CW02 ...................
25.1 Other Parts Index No Part No Description Size Qty 1A ........ ZX-OP-1A ...................... 3-Jaw Chuck (mounted on lathe) ......................... 10”, D1-8 ..................... 1 1B ........ ZX-OP-1B ...................... Chuck Wrench...................................................... .................................... 1 3 .......... ZX-OP-03 ...................... 12” Face Plate (for 14”/16” models) ..................... .................................... 1 ............ ZX-OP-03N ...
26.1 Electrical Cabinet – Parts List Index No Part No Description Size Qty 1 .......... ZX-SB1 .......................... Jog Button (serial #160401ZX3031 and lower) ... LAY3-11 ...................... 1 ............ ZX-SB3 .......................... Jog Button (serial #160410ZX3032 and higher) .. XB2-EA131 ................. 1 2 .......... ZX-SA2 .......................... Coolant Control Button......................................... ZB2-BD2C .................. 1 3 .......... ZX- SB2 ..................
26.
27.
28.0 Rotary Switch Diagram 1.....The Cord from the Wiring Board (part no. ZX-XT2) 2.....The Grounding Wire from the Copper Plate (part no.
29.1 Safety Guard Cover – Exploded View 29.2 Safety Guard Cover – Parts List Index No Part No Description Size Qty 1 .......... ZX19701E-G ................. Protection guard ................................................... .................................... 1 2 .......... ZX19501E ..................... Protection guard visual glass ............................... .................................... 1 3 .......... ZX19704E ..................... Fixing rod ..........................................
30.1 Carriage Lubrication – Exploded View Index No Part No Description Size Qty 1 .............. ARM ......................... Valve Tie-in .......................................................... .................................... 1 2 .............. 206254 ..................... Clip Sleeve ........................................................... CS-6 ............................ 2 3 .............. 206252 ..................... Vitta Tie-in .........................................................
427 New Sanford Road LaVergne, Tennessee 37086 Phone: 800-274-6848 www.jettools.
