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Jet JTM-1254RVS User Manual

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Operating Instructions and Parts Manual
Variable Speed Turret Mill
Models JTM-1254VS and JTM-1254RVS
JET
427 New Sanford Road
LaVergne, Tennessee 37086 Part No. M-690025
Ph.: 800-274-6848 Edition 5 08/2019
www.jettools.com Copyright © 2017 JET
JTM-1254VS shown

Table of Contents

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Jet JTM-1254RVS Specifications

General IconGeneral
BrandJet
ModelJTM-1254RVS
CategoryIndustrial Equipment
LanguageEnglish

Summary

1.0 Important Safety Instructions

3.0 About this manual

4.0 Specifications

4.1 Machine dimensions

Provides detailed physical dimensions for both JTM-1254VS and JTM-1254RVS models.

4.2 Overview and terminology

Identifies key machine components and defines operational terminology for clarity.

5.0 Set-up and assembly

5.1 Contents of shipping container

Lists all parts and items included in the machine's original packaging.

5.2 Preparing the mill for service

Instructions for unpacking, checking, and preparing the mill for initial operation.

6.0 Electrical connections

6.1 General electrical cautions

Essential safety precautions and guidelines for all electrical connections.

6.2 Wire sizes

Recommends appropriate wire gauges for electrical supply lines.

6.3 Voltage conversion

Details the procedure for converting the machine's voltage settings.

7.0 Lubrication

8.0 Operating instructions

Machine Operation Controls

Identifies and describes controls on the panel and main operating components.

Spindle and Feed Controls

Explains operation of spindle brake, shift lever, and feed levers.

Feed Adjustment and Tooling

Covers feed trip, speed control, direction, and depth stop for operations.

Advanced Operation Modes

Details automatic feed and draw bar operation for changing tooling.

9.0 Adjustments

9.1 Mill head – left/right adjustment

Instructions for adjusting the mill head's tilt angle for different operations.

9.2 Positioning ram

How to adjust the ram's position fore/aft and on the turret.

9.3 Gib adjustment

Guidance on adjusting gibs for smooth table, saddle, and knee movement.

9.4 Power feed trip lever mechanism

Details on how to adjust the power feed trip lever mechanism.

9.5 Table lead screw backlash adjustment

Procedures for adjusting backlash on the table's lead screws for accuracy.

10.0 User-maintenance

10.1 Lubrication

Details specific lubrication points and recommended lubricants for the machine.

10.2 Periodic maintenance requirements

Routine cleaning and maintenance tasks for optimal machine performance.

11.0 Recommended speed for mill and drill operations

12.0 Replacement parts

12.1.1 JTM-1254VS Upper Head Assembly – Exploded View

Visual breakdown of the JTM-1254VS upper head assembly components.

12.1.2 JTM-1254VS Upper Head Assembly – Parts List

Detailed list of parts for the JTM-1254VS upper head assembly.

12.5.1 JTM-1254VS Base Machine – Exploded View

Visual breakdown of the JTM-1254VS base machine components.

12.5.2 JTM-1254VS Base Machine – Parts List

Detailed list of parts for the JTM-1254VS base machine.

Table Assembly Components

Exploded view and parts list for the JTM-1254VS/RVS table assembly.

Coolant Pump & Work Lamp Components

Exploded views and parts lists for optional coolant pump and work lamp.

Spindle Guard Assembly Components

Exploded view and parts list for the spindle guard assembly.

Lubrication System Components

Exploded view and parts list for the machine's lubrication system.

13.0 Electrical Connections

13.1 230V Wiring Diagram

Schematic diagram for electrical connections at 230V.

13.2 460V Wiring Diagram

Schematic diagram for electrical connections at 460V.

14.0 Warranty and service

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