Jet Tools JTM-4VS operating instructions

Page 4

Base Assembly

33

Parts List for Base Assembly

34

Lead Screw Assembly

36

One-Shot Lubrication System

37

Electrical Connections – Single Phase only

38

Electrical Connections – 3 Phase only

39

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 turret mill is designed and intended for use by properly trained and experienced personnel only. If you are not familiar with the proper and safe operation of a turret mill, do not use until proper training and knowledge have been obtained.

5.Do not use this turret mill for other than its intended use. 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.

6.Always wear approved safety glasses/face shields while using this turret mill. (Everyday eyeglasses only have impact resistant lenses; they are not safety glasses.)

7.Before operating this turret mill, remove tie, rings, watches and other jewelry, and roll sleeves up past the elbows. Remove all loose clothing and confine long hair. Non-slip footwear or anti-skid floor strips are recommended. Do not wear gloves.

8.Wear ear protectors (plugs or muffs) during extended periods of operation.

9.Some dust created by power sanding, sawing, grinding, drilling and other construction activities contain chemicals known to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are:

Lead from lead based paint.

Crystalline silica from bricks, cement and other masonry products.

Arsenic and chromium from chemically treated lumber.

Your risk of exposure varies, depending on how often you do this type of work. To reduce your exposure to these chemicals, work in a well-ventilated area and work with approved safety equipment, such as face or dust masks that are specifically designed to filter out microscopic particles.

10.Do not operate this machine while tired or under the influence of drugs, alcohol or any medication.

11.Make certain the switch is in the OFF position before connecting the machine to the power supply.

12.Make certain the machine is properly grounded.

13.Make all machine adjustments or maintenance with the machine unplugged from the power source.

14.Remove adjusting keys and wrenches. Form a habit of checking to see that keys and adjusting wrenches are removed from the machine before turning it on.

15.Keep safety guards in place at all times when the machine is in use. If removed for maintenance purposes, use extreme caution and replace the guards immediately.

16.Some coolants used for machining contain chemicals that may be hazardous to your health if not used properly. Read and understand all information on the coolant container and protect yourself accordingly.

4

Image 4
Contents Variable Speed Turret Mill Part No. M-690182Warranty and Service Warranty PeriodTable of Contents Page Page JTM-4VS-1 Introduction Specifications690180 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 HandleDepth Scale and Stop Power Feed OperationCCW 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 Index No. Part No Description Size Qty Parts List for Head AssemblyJTM4VS-HA 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-CHRALMP-04-VS One-Shot Lubrication SystemJTM4VS-BUTW1458 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.