Jet Tools JTM-4VS operating instructions

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4.Tighten the two nut locking screws.

5.Using the longitudinal table crank, move the table to the middle position.

6.Set up a dial indicator to check longitudinal backlash. Gently move the crank back and forth while watching the dial indicator. The backlash should be between 0.003 inch and 0.005 inch.

If necessary, repeat the steps above to set backlash.

Figure 26

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Contents Variable Speed Turret Mill Part No. M-690182Warranty and Service Warranty PeriodTable of Contents Page Page 690180 Introduction SpecificationsJTM-4VS-1 Contents of the Shipping Container UnpackingSet-up and Installation Preparing the Milling Machine for ServiceJTM-4VS Dimensions Installation DiagramJTM-4VS Overview and Terminology OverviewMotor Switch Electrical ConnectionsOperating Instructions Operating ControlsVariable Speed Control Change speed only while the spindle is turningQuill Power Feed Lever Spindle BrakeHigh-Neutral-Low Shift Lever Feed Rate LeverMicrometer Adjusting Nut Feed Trip Cam LeverFeed Direction Control Coarse Feed HandleCCW Power Feed OperationDepth Scale and Stop Adjustments Mill Head Left/Right AdjustmentDraw Bar Operation Changing Tooling Clamping Work Piece to the TableMill Head Fore/Aft Adjustment Gib Adjustment Positioning the RamPower Feed Trip Lever Mechanism Table Lead Screw Backlash AdjustmentCross Feed Backlash Adjustment Longitudinal Backlash AdjustmentPage Maintenance Periodic Maintenance RequirementsReplacement of Drive Motor Replacement of Vari-Speed Belt Replacement of Brake Shoes, Springs and/or Timing BeltReplacement Parts Replacement of Quill Feed Clock SpringHead Assembly JTM4VS-HA Parts List for Head AssemblyIndex No. Part No Description Size Qty VS-054 JTM4VS-A002B Spindle Assembly Parts List for Spindle Assembly LA-082 Overload Clutch Lockout LA-083 RINS30 Base Assembly Parts List for Base Assembly JTM4VS-B79 JTM4VS-B80JTM4VS-B81 JTM4VS-B82Lead Screw Assembly LT-010BSP-CHRJTM4VS-BUTW1458 One-Shot Lubrication SystemALMP-04-VS Electrical Connections Single Phase only Electrical Connections 3 Phase only New Sanford Road LaVergne, Tennessee Phone

JTM-4VS specifications

The Jet Tools JTM-4VS is a highly regarded vertical mill that caters to the demands of both professional machinists and serious hobbyists. This versatile piece of machinery combines precision engineering with innovative features, making it a popular choice in workshops and fabrication shops.

One of the standout characteristics of the JTM-4VS is its powerful 1.5 HP motor that operates on either 115V or 230V power supply, providing flexibility depending on the workshop setup. The motor offers variable speed control, from 60 to 4200 RPM, allowing users to adjust speeds according to the material being machined. This capability makes it ideal for a wide range of applications, from heavy milling on steel to delicate work on softer materials like aluminum.

The JTM-4VS is equipped with a robust cast iron column and base, which contribute to its stability and durability. This construction minimizes vibrations during operation, resulting in improved precision and surface finish on machined parts. The table measures 9” x 49”, providing ample workspace for various projects, and is fitted with T-slots for easy clamping of workpieces.

Another notable feature of the JTM-4VS is its easy-to-use digital readout (DRO) system that assists users in making precise adjustments and measurements. The DRO enhances the overall efficiency of the milling process, allowing operators to focus on the task at hand rather than relying solely on manual measurements.

The machine also incorporates a high-grade, hardened and ground bedway that ensures smooth operation and long-lasting performance. This feature not only extends the longevity of the mill but also allows for precise vertical and horizontal movements.

Safety is a primary concern in any workshop, and Jet has addressed this with various safety features integrated into the JTM-4VS. The mill is designed with a protective shield and emergency stop button, ensuring operators can work confidently.

In summary, the Jet Tools JTM-4VS stands out for its combination of robust construction, versatile functionality, and user-friendly technologies. With its powerful motor, variable speed capabilities, and precision features, it is an excellent investment for anyone looking to enhance their machining capabilities in the workshop. Whether it's for industrial applications or intricate projects, the JTM-4VS delivers reliable performance and exceptional results.