Jet JTM-949EVS4 Operating Instructions And Parts Manual
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Jet JTM-949EVS4 Operating Instructions And Parts Manual

Electronic variable speed turret mill
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Operating Instructions and Parts Manual
Electronic Variable Speed Turret Mill
Models: JTM-949EVS/230, JTM-949EVS4
JTM-1050EVS2, JTM-1050EVS4
JTM-949EVS/230 shown
JET
427 New Sanford Road
LaVergne, Tennessee 37086
Part No. M-690501
Ph.: 800-274-6848
Revision G 10/2019
www.jettools.com
Copyright © 2018 JET

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  • Page 1 This .pdf document is bookmarked Operating Instructions and Parts Manual Electronic Variable Speed Turret Mill Models: JTM-949EVS/230, JTM-949EVS4 JTM-1050EVS2, JTM-1050EVS4 JTM-949EVS/230 shown 427 New Sanford Road LaVergne, Tennessee 37086 Part No. M-690501 Ph.: 800-274-6848 Revision G 10/2019 www.jettools.com Copyright © 2018 JET...

  • Page 2: Warranty And Service

    JET sells through distributors only. The specifications listed in JET printed materials and on official JET website are given as general information and are not binding. JET reserves the right to effect at any time, without prior notice, those alterations to parts, fittings, and accessory equipment which they may deem necessary for any reason ®...

  • Page 3: Table Of Contents

    2.0 Table of contents Section Page 1.0 Warranty and service ............................. 2   2.0 Table of contents ............................3   3.0 Safety warnings .............................. 5   4.0 About this manual ............................6   5.0 Specifications ..............................7   5.1 Machine dimensions – JTM-949EVS and JTM-1050EVS series ............... 8  ...
  • Page 4 13.13.1 JTM-1050EVS Lubrication System Assembly – Exploded View ............45   13.13.2 JTM-1050EVS Lubrication System Assembly – Parts List ............... 45   14.0 Electrical Connections ..........................46   14.1 JTM-949EVS/230 and JTM-1050EVS2 (230V ONLY) ................46   14.1 JTM-949EVS4 and JTM-1050EVS4 (460V ONLY) ................47  ...

  • Page 5: Safety Warnings

    Do not use this turret mill for other than its area. Keep children away. Workshop should be intended use. If used for other purposes, JET child proof with padlocks, master switches or by disclaims any real or implied warranty and holds removing starter keys.

  • Page 6: About This Manual

    If there are questions or comments, please contact your local supplier or JET. JET can also be reached at our web site: www.jettools.com.

  • Page 7: Specifications

    5.0 Specifications Table 1 Model number JTM-949EVS/230 JTM-949EVS4 JTM-1050EVS2/230 JTM-1050EVS4 Stock number 691500 690701 691600 690801 Motor and Electricals Motor type TEFC Horsepower 3 HP (2.24 kW) Phase Voltage Cycle 60 Hz Listed FLA (full load amps) Motor speed 1720 RPM...

  • Page 8: Machine Dimensions - Jtm-949Evs And Jtm-1050Evs Series

    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. 5.1 Machine dimensions – JTM-949EVS and JTM-1050EVS series...

  • Page 9: Overview And Terminology - Jtm-949Evs And Jtm-1050Evs Series

    5.2 Overview and terminology – JTM-949EVS and JTM-1050EVS series Figure 2: Overview (JTM-949EVS/230 shown)

  • Page 10: Set-Up And Assembly

    17/19mm Box Wrench * Read and understand the Cross Point Screw Driver #2 * entire contents of this manual before attempting Flat Blade Screw Driver #2 * set-up or operation. Failure to comply may Oil Can * cause serious injury. Elevating Crank Handle Handwheel 6.0 Set-up and assembly...

  • Page 11: Electrical Connections

    230 volt operation only. The Otherwise, perform them in the order listed. Refer to JTM-949EVS4 and JTM-1050EVS4 have been pre- Figure 3 to help locate items. wired for 460 volt operation only.

  • Page 12: Lubrication

    A – RPM digital readout. 8.0 Lubrication B – Motor direction switch: Has two positions: FWD (forward) and REV (reverse). Setting the Do not operate the mill before switch to FWD will provide clockwise spindle lubricating the machine fully. Failure to rotation.

  • Page 13: Control Positions For Milling And Drilling Operations

    9.3 Control positions for milling and drilling operations Table 3...

  • Page 14: Electronic Variable Speed

    9.4 Electronic variable speed 9.7 Quill power feed lever The dial on the EVS control panel controls the main motor Do not use power feed at speeds speed. Motor RPM is displayed on the LED screen. above 3000 R.P.M. 9.5 Spindle brake It is recommended to disengage the The spindle brake lever is located on upper left side of power feed worm gear whenever power feed is not...

  • Page 15: Feed Trip Cam Lever

    It is recommended that Feed Direction Knob be left in neutral position when not in use. Figure 8 9.9 Feed trip cam lever The Feed Trip Cam Lever (A, Figure 9) is located on left Figure 10 side of head behind the Manual Fine Feed Handwheel (B, Figure 9).

  • Page 16: Fine Feed Handwheel

    9.14 Fine feed handwheel Tighten the Locknut (I). Ensure Quill Lock (K) is disengaged by rotating When the controls are set for the Fine feed using counter-clockwise. Handwheel position (see Table 3), the Fine Feed Handwheel (A, Figure 10) can be used for manual fine Start spindle (see Table 3): feed control in either upward or downward direction of the quill.

  • Page 17: Draw Bar Operation - Changing Tooling

    9.17 Draw bar operation – changing 10.0 Adjustments tooling Using the provided wrench, loosen draw bar two or 10.1 Mill head – left/right adjustment three turns (turn counterclockwise) using draw bar hex (Figure 14). Make sure machine base is secured to floor before repositioning mill head.

  • Page 18: Mill Head - Fore/Aft Adjustment

    Set the dial indicator plunger on the work table. Zero the indicator. Rotate spindle 180 degrees (when rotating, raise dial indicator plunger by hand to prevent it from dropping into table T-slots). 10. Read dial indicator. The indicator should read zero. If not, loosen the four hex nuts and reposition the mill head.

  • Page 19: Gib Adjustment

    10.4.2 Saddle gib adjustment Turn ram pinion (B, Figure 19) with a wrench to slide ram on its ways. The saddle gib adjustment screw is on left front of saddle When desired position is reached, tighten handles (B, Figure 20). Tighten screw until a slight drag is felt (A, Figure 19)[or hex nuts] securely.
  • Page 20 10. Check for correct operation using the coarse feed Using the cross-feed crank, move table to middle handle. If operating correctly, start drive motor and position. engage power feed mechanism. Verify that power Set up a dial indicator to check cross-feed backlash. feed lever correctly engages and disengages when Gently move cross feed crank back and forth while driven by drive motor.

  • Page 21: Maintenance

    11.0 Maintenance Before any intervention on the machine, disconnect it from electrical supply by pulling out plug or switching off main switch. Failure to comply may cause serious injury. 11.1 Lubrication The milling machine is equipped with an automatic lubrication system. The system lubricates the lead screws and ways. An oil cup and grease nipple on the mill head provide lubrication for the spindle bearings and back gear mechanism.

  • Page 22: Recommended Speed For Mill And Drill Operations

    Non-proprietary parts, such as fasteners, can be found at local hardware stores, or may be ordered from JET. Some parts are shown for reference only, and may not be available individually.

  • Page 23: Jtm-949Evs/Jtm-1050Evs Upper Head Assembly - Exploded View

    13.1.1 JTM-949EVS/JTM-1050EVS Upper Head Assembly – Exploded View...

  • Page 24: Jtm-949Evs/Jtm-1050Evs Upper Head Assembly - Parts List

    13.1.2 JTM-949EVS/JTM-1050EVS Upper Head Assembly – Parts List Index No Part No Description Size 1 ....JTM949EVS-A01 ..Upper Pulley Housing ..................1 2 ....TS-1504041 ....Hex Socket Cap Screw ..........M8x20 ......4 3 ....JTM949EVS-A03 ..Bull Gear Shifter Pinion Shaft ................ 1 4 ....
  • Page 25 96 ....JTM949EVS-A96 ..Sensor ......................1 97 ....ZX-S36 ...... Pan Head Screw ............M3x20 ......2 99 ....JET-203 ..... JET Logo ..............203x84 mm ....1 100 .... LM000001 ....Motor Label ....................1 101 .... JTM949EVS-A101 ..Cable (Control Panel to Elec Box) – not shown ..........1 102 ....

  • Page 26: Jtm-949Evs/Jtm-1050Evs Lower Head Assembly - Exploded View

    13.2.1 JTM-949EVS/JTM-1050EVS Lower Head Assembly – Exploded View...

  • Page 27: Jtm-949Evs/Jtm-1050Evs Lower Head Assembly - Parts List

    13.2.2 JTM-949EVS/JTM-1050EVS Lower Head Assembly – Parts List Index No Part No Description Size 1 ....TS-1503031 ....Hex Socket Cap Screw ..........M6x12L ......1 2 ....TS-1550041 ....Flat Washer ............. Ø6xØ16x2t ....1 3 ....JTM949EVS-B07 ..Worm Gear Spacer ..................1 3A ....
  • Page 28 Index No Part No Description Size 72 ....JTM949EVS-B72 ..Quill Housing ............105mm ......1 73 ....TS-1502081 ....Hex Socket Cap Screw ..........M5x35 ......2 74 ....JTM949EVS-B74 ..Clutch Ring Pin ....................2 75 ....JTM949EVS-B75 ..Clutch Ring ....................1 76 ....
  • Page 29 Index No Part No Description Size 131 .... BB-6206ZZ ....Ball Bearing ............. 6206ZZ ......1 132 .... JTM949EVS-B132 ..Hub Sleeve ....................1 133 .... JTM949EVS-B133 ..Nose Piece ....................1 134 .... JTM949EVS-B134 ..Spindle Shield ....................1 135 ....

  • Page 30: Jtm-949Evs Base Machine - Exploded View

    13.3.1 JTM-949EVS Base Machine – Exploded View...

  • Page 31: Jtm-949Evs Base Machine - Parts List

    13.3.2 JTM-949EVS Base Machine – Parts List Index No Part No Description Size 1 ....TS-1504061 ....Hex Socket Cap Screw ..........M8x30L ......2 2 ....JTM949EVS-C02 ..Worm ......................1 3 ....JTM949EVS-C03 ..Ram Adapter ....................1 3-1 .....
  • Page 32 108 .... TS-1550041 ....Flat Washer ............. M6 ......... 2 109 .... LM000002 ....ID/Warning Label (JTM-949EVS/230) ............1 110 .... JET-254 ..... JET Logo ..............254x105 mm ....2 ....JTM9494EVS-TB ..Tool Box Kit Complete (not shown) ..............

  • Page 33: Jtm-1050Evs Base Machine - Exploded View

    13.4.1 JTM-1050EVS Base Machine – Exploded View...

  • Page 34: Jtm-1050Evs Base Machine - Parts List

    13.4.2 JTM-1050EVS Base Machine – Parts List Index No Part No Description Size 1 ....TS-2249252 ....Socket Head Button Screw .......... M10x25 ......4 2 ....JTM949EVS-C31 ..Bushing ........................ 2 3 ....JTM949EVS-C30 ..Nut ........................2 4 ....
  • Page 35 118 ..... JTM949EVS-C61 ..Lead Screw (Inch) ............Ø32 x 5 tpi ....... 1 122 ..... JTM949EVS-C84 ..Side Cover ......................1 123 ..... JET-254 ...... JET Logo..............254x105 mm ....2 124 ..... LM000003 ....ID/Warning Label (JTM-1050EVS2) ..............1...

  • Page 36: Jtm-949Evs Table Assembly - Exploded View

    13.5.1 JTM-949EVS Table Assembly – Exploded View...

  • Page 37: Jtm-949Evs Table Assembly - Parts List

    13.5.2 JTM-949EVS Table Assembly – Parts List Index No Part No Description Size 1 ....TS-0561052 ....Hex Nut ..............1/2-20UNF ....3 2 ....JTM949EVS-D02 ..Handle ..............3/8" ........ 3 3 ....JTM949EVS-D03 ..Ball Crank ...................... 3 4 ....

  • Page 38: Jtm-1050Evs Table Assembly - Exploded View

    13.6.1 JTM-1050EVS Table Assembly – Exploded View...

  • Page 39: Jtm-1050Evs Table Assembly - Parts List

    13.6.2 JTM-1050EVS Table Assembly – Parts List Index No Part No Description Size 1 ....TS-0561052 ....Hex Nut ..............1/2"-20UNF ....3 2 ....JTM949EVS-D02 ..Handle ..............3/8" ........ 3 3 ....JTM949EVS-D03 ..Ball Crank ...................... 3 4 ....

  • Page 40: Jtm-949Evs/Jtm-1050Evs Control Panel Assembly - Exploded View

    13.7.1 JTM-949EVS/JTM-1050EVS Control Panel Assembly – Exploded View 13.7.2 JTM-949EVS/JTM-1050EVS Control Panel Assembly – Parts List Index No Part No Description Size ....JTM949EVS-CBA ..Control Box Assembly (includes #1~9 and 21) ..........1 1 ....JTM949EVS-E01 ..Control Box ....................1 2 ....

  • Page 41: Jtm-949Evs/Jtm-1050Evs Electrical Box - Exploded View

    13.8.1 JTM-949EVS/JTM-1050EVS Electrical Box – Exploded View 13.8.2 JTM-949EVS/JTM-1050EVS Electrical Box – Parts List Index No Part No Description Size 1 ....JTM949EVS-F01 .... Electrical Cabinet (RE: JTM949EVS-F21) ..........1 2 ....JTM949EVS-F02 .... Electrical Plate (RE: JTM949EVS-F21) ............ 1 3 ....

  • Page 42: Jtm-949Evs/Jtm-1050Evs Coolant Pump (Optional) - Exploded View

    13.9.1 JTM-949EVS/JTM-1050EVS Coolant Pump (Optional) – Exploded View 13.10.1 JTM-949EVS/JTM-1050EVS Work Lamp – Exploded View 13.9.2 JTM-949EVS/JTM-1050EVS Coolant Pump (Optional) – Parts List Index No Part No Description Size ....660125 ...... Coolant Pump Kit (includes #1 thru 12) ............1 ....

  • Page 43: Jtm-949Evs/Jtm-1050Evs Spindle Guard Assembly - Exploded View

    13.11.1 JTM-949EVS/JTM-1050EVS Spindle Guard Assembly – Exploded View 13.11.2 JTM-949EVS/JTM-1050EVS Spindle Guard Assembly – Parts List Index No Part No Description Size ....JTM949EVS-SGA ..Spindle Guard Assembly (#1 thru 9) ............... 1 ....TS-1502101 ....Hex Socket Cap Screw ..........M5x45 ......2 2 ....

  • Page 44: Jtm-949Evs Lubrication System - Exploded View

    13.12.1 JTM-949EVS Lubrication System – Exploded View 13.12.2 JTM-949EVS Lubrication System – Parts List Index No Part No Description Size 1 ....JTM949EVS-J01 ..Automatic Oiler ............2L, 0~180min ....1 2 ....TS-1503061 ....Hex Socket Cap Screw ..........M6x25L ......2 3 ....

  • Page 45: Jtm-1050Evs Lubrication System Assembly - Exploded View

    13.13.1 JTM-1050EVS Lubrication System Assembly – Exploded View 13.13.2 JTM-1050EVS Lubrication System Assembly – Parts List Index No Part No Description Size 1 ....JTM949EVS-J01 .... Automatic Oiler ........... 2L, 0~180min ....1 2 ....TS-1503061 ....Hex Socket Cap Screw ........M6x25L ......2 3 ....

  • Page 46: Electrical Connections

    14.0 Electrical Connections 14.1 JTM-949EVS/230 and JTM-1050EVS2 (230V ONLY)

  • Page 47: Jtm-949Evs4 And Jtm-1050Evs4 (460V Only)

    14.1 JTM-949EVS4 and JTM-1050EVS4 (460V ONLY)
  • Page 48 427 New Sanford Road LaVergne, Tennessee 37086 Phone: 800-274-6848 www.jettools.com...

This manual is also suitable for:

Jtm-949evs/230Jtm-1050evs2Jtm-1050evs4Jtm-1050evs2/230Jtm-949evs

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