Precision matthews PM-1440GT User Manual

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Copyright © 2020 Quality Machine Tools, LLCPM-1440GT v9 2020-10
Model PM-1440GT Lathe
Ultra High precision gap-bed lathe, with coolant system
Short spindle length, large bore: 15-1/2 long x 2 inch bore
D1-5 camlock spindle mount
40 in. between centers, 14 in. swing over bed, 20-3/4 in. over gap
12 spindle speeds from 50 to 2000 rpm
Multi-speed gearbox for full-range screw cutting, TPI & MM pitch
Bidirectional power feed for saddle & cross-slide
Weight, including stand & coolant system 1750 lb
The PM-1440GT lathe is manufactured in Taiwan
PM-1440GT Shown with optional work
light, chuck and micrometer saddle stop

Precision matthews PM-1440GT Specifications

General

Distance Between Centers	40 inches
Swing Over Bed	14 inches
Spindle Bore	1.5 in
Tailstock Quill Travel	4 inches
Voltage	220V

Summary

Frequently Asked Questions (FAQ)

Troubleshooting Lathe Operation Issues

Covers common problems like motor not running or starting.

Gearbox Lubrication Setup Reminder

Section 1: Installation and Setup

Installation Overview and Safety Precautions

Covers handling, location, power, and pre-connection checks.

Setup, Leveling, and Initial Checks

Covers lifting, leveling, coolant check, cleaning, chip tray, interlocks, and power connection.

Test Run and Alignment Procedures

Section 2: Features and Specifications

General Lathe Capabilities Overview

Detailed Machine Specifications

Everyday Safety Precautions

Operator Safety Guidelines

Essential safety rules for machine operation.

Work Area and Machine Maintenance Safety

Precautions for a safe work environment.

Section 3: Using the Lathe

Motor Controls and Drive Train

Explains motor controls, feed direction, and drive train.

Spindle Speed Selection

Details on changing spindle speeds using gearbox levers.

Chuck Installation and Jog Feature

Describes chuck installation and the jog function.

Saddle Feed Direction and Control

Chuck Installation Procedure Details

Detailed steps for installing D1-5 chucks.

Cross-Slide and Compound Dial Usage

Tailstock Operation and Adjustment

Covers tailstock use and offset adjustment for tapers.

Saddle Feed Gearbox Controls and Engagement

Details on selecting feed rates and engaging power feed.

Saddle & Cross-Slide Feed Rate Settings

Feedshaft Clutch Operation and Adjustment

External Change Gears for Thread Cutting

TPI Thread Cutting Setup and Key Facts

Metric Thread Cutting Setup

Compound Setup for Thread Cutting

TPI Thread Cutting Procedure

Steps for cutting inch threads.

Using the Threading Dial

Steady and Follower Rest Usage

Gap Bed Operation and Removal

Taper Turning Attachment Installation

Steps for fitting the taper turning attachment.

Setting the Taper Angle

Section 4: Servicing and Maintenance

General Lubrication and Oiling Procedures

Recommended lubricants and general oiling.

Headstock Gearbox Maintenance

Drain and refill procedure for the headstock gearbox.

Saddle Feed and Apron Gearbox Service

Drain and refill procedures for these gearboxes.

Gib Adjustment for Slides

How to adjust gibs on slides for play and rigidity.

Leadscrew Backlash Adjustment

Split Nut and Tailstock Clamp Adjustment

Brake Assembly Inspection

Drive Belt Tension Adjustment

Aligning Lathe Centers (Quick and Precise Methods)

Two methods for aligning lathe centers accurately.

Headstock Alignment Methods and Factors

Techniques for headstock alignment and factors affecting runout.

Headstock Alignment Procedure

Section 5: Electrical Schematic

PM-1440GT Electrical Schematic Diagram

Functional diagram of the electrical system.

Electrical System Components Overview

Motor Control Wiring and Direction Change

How to wire and change motor rotation direction.