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Bolton Tools GK-4235 - User Manual

Bolton Tools GK-4235
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METAL CUTTING BAND SAW
MODEL: GK-4235
Operation manual
Table of contents

Table of Contents

Questions and Answers

  • C
    csmithAug 16, 2025
    What to do if my Bolton Tools GK-4235 makes bad cuts?
    • S
      simsbrianAug 17, 2025
      If your Bolton Tools Saw is producing bad cuts, consider the following: * The feed pressure may be too great; reduce it by increasing the spring tension on the side of the saw. * The guide bearing might not be adjusted properly; adjust the guide bearing, ensuring the clearance is not greater than 0.001mm. * The blade tension could be inadequate; increase it by adjusting the blade tension. * The blade may be dull; replace it. * The speed might be incorrect; adjust it. * The blade guide could be spaced out too much; adjust the guide space. * The blade guide assembly might be loose; tighten it. * The blade truck may be too far away from the wheel flanges; re-track the blade according to the operating instructions.
  • M
    Matthew MoralesAug 20, 2025
    What causes premature blade dulling in my Bolton Tools GK-4235 Saw?
    • J
      Jason WigginsAug 20, 2025
      Premature blade dulling in your Bolton Tools Saw can be caused by: * Teeth being too coarse; use finer teeth. * Too much speed; decrease the speed. * Inadequate feed pressure; decrease the spring tension on the side of the saw. * Hard spots or scale on the material; reduce speed and increase feed pressure. * Work hardening of the material; increase feed pressure by reducing spring tension. * Blade twist; replace with a new blade and adjust blade tension. * Insufficient blade tension; tighten the blade tension adjustable knob.
  • W
    William TaylorAug 25, 2025
    How to fix a Bolton Tools GK-4235 motor that is running too hot?
    • M
      Marcus HendersonAug 25, 2025
      If your Bolton Tools Saw motor is running too hot, here are some possible causes and solutions: * Blade tension too high: Reduce tension on the blade. * Drive belt tension too high: Reduce tension on the drive belt. * Gears need lubrication: Check the oil bath. * Cut is binding the blade: Decrease feed and speed. * Gears aligned improperly: Adjust gears so that the worm is in the center of the gear.
  • D
    Daniel RoseAug 28, 2025
    What to do if the blade is twisting on my Bolton Tools GK-4235 Saw?
    • J
      Jane WilliamsAug 28, 2025
      If the blade is twisting on your Bolton Tools Saw, it could be due to: * The cut binding the blade; decrease feed pressure. * Too much blade tension; decrease blade tension.
  • D
    davidmorrisAug 31, 2025
    What causes teeth ripping from the blade on my Bolton Tools Saw?
    • R
      Randall ClarkAug 31, 2025
      If teeth are ripping from the blade on your Bolton Tools Saw, consider the following: * The tooth may be too coarse for the work; use a finer tooth blade. * There may be too heavy pressure and too slow speed; decrease pressure and increase speed. * The work piece may be vibrating; clamp the work piece securely. * The gullets may be loading; use a coarse tooth blade or a brush to remove chips.
  • W
    warrendonaldSep 4, 2025
    What causes bad and rough cuts with my Bolton Tools GK-4235 Saw?
    • K
      Kimberly SuttonSep 4, 2025
      If your Bolton Tools Saw is producing bad and rough cuts, it could be due to: * Too much speed or feed; decrease the speed or feed. * The blade being too coarse; replace it with a finer blade. * Loose blade tension; adjust the blade tension.
  • F
    framirezSep 8, 2025
    Why is there unusual wear on the side or back of the blade on my Bolton Tools GK-4235 Saw?
    • M
      Melissa JacksonSep 8, 2025
      Unusual wear on the side or back of the blade of your Bolton Tools Saw can be caused by: * Worn blade guides; replace them. * Blade guide bearings not adjusted properly; adjust them as per the operator's manual. * A loose blade guide bearing bracket; tighten it.
  • D
    Dawn ClementsNov 12, 2025
    Why does my Bolton Tools Saw have excessive blade breakage?
    • C
      Crystal MooreNov 12, 2025
      Excessive blade breakage in your Bolton Tools Saw can occur for several reasons: * The material may be loose in the vise, so ensure you clamp the work securely. * The speed or feed might be incorrect, so adjust them accordingly. * The blade teeth spacing could be too large; replace it with a blade that has smaller teeth spacing. * The material might be too coarse, so use a blade with slow speed and small teeth spacing. * The blade tension may be incorrect; adjust it until the blade barely slips on the wheel. * The teeth may be in contact with the material before the saw is started; place the blade in correct position after the motor is started. * The blade might be rubbing on the wheel flange; adjust the wheel alignment. * The guide bearings could be misaligned; adjust the...

Summary

1. Safety Precautions

2. Machine Specifications

3. Machine Part Identification

Control Panel Overview

Details the function of each button and dial on the machine's control panel.

4. Machine Setup Procedures

Safe Unit Placement

Instructions on safely lifting and positioning the band saw using a forklift and straps.

Vise Control Operations

Explains how to operate the vise for clamping and unclamping the workpiece.

Machine Cleanup Procedure

Instructions for removing protective coating and cleaning unpainted surfaces.

Installing the Work Stop

Details on how to install and adjust the work stop on the vise.

Machine Test Run Guide

Step-by-step guide for safely starting and testing the machine.

5. Operating the Band Saw

Vise Workpiece Clamping

How to clamp the workpiece using the hand wheel or hydraulic cylinder.

Vise Clamping Illustrations

Illustrates workpiece clamping methods using hand wheel and hydraulic cylinder.

Coolant System Setup and Use

Explains the function, filling, and adjustment of the band saw's built-in coolant system.

Choosing Cutting Fluid

Guidance on selecting appropriate cutting fluids for different metal types.

Adjusting Blade Guides

Instructions on adjusting the rear blade guide for straight cuts and front guide blocks.

Selecting the Correct Blade

Recommendations for choosing the right blade based on material shape, hardness, and size.

Adjusting Blade Speed

How to adjust blade speed using the switch or speed adjustment knob.

Setting the Feed Rate

Guide to setting the feed rate for optimal cutting performance.

Telltale Chip Analysis

How to interpret chip formation to adjust feed rate and blade speed.

Proper Blade Tensioning

Importance of proper blade tension and how to adjust it using the handle or hydraulic cylinder.

Using the Workpiece Feeder

Instructions for using the manual workpiece feeder to move material.

6. Machine Maintenance Schedule

Daily Maintenance Checklist

Routine checks for loose bolts, damaged blades, wires, and coolant levels.

Monthly Maintenance Tasks

Checks for lubricant, gear oil, and applying anti-rust oil.

7. Hydraulic System Overview

8. Troubleshooting Common Issues

Resolving Blade Breakage

Lists causes and corrective actions for blades breaking frequently.

Addressing Blade Dulling

Lists causes and corrective actions for blades dulling too quickly.

Blade Wear and Guide Problems

Identifies causes and solutions for blade guide wear.

Fixing Teeth Ripping

Lists causes and corrective actions for blade teeth tearing.

Motor Overheating Solutions

Explains reasons for motor overheating and how to resolve them.

Improving Cut Quality

Covers issues leading to poor cut quality and their solutions.

Correcting Rough Cuts

Addresses causes of rough cuts and their remedies.

Preventing Blade Twisting

Explains why the blade twists and how to fix it.

9. Electrical Diagrams and Parts

TGK4235;TGK4240 Electrical Circuit Diagram

Provides the electrical circuit diagram for the TGK4235 and TGK4240 models.

TGK4235 Exploded View

Visual exploded view of the TGK4235 machine with numbered parts.

TGK4235 Parts Listing

Detailed list of parts for the TGK4235 model with part numbers and quantities.

TGK4235 Parts Listing (Cont.)

Continuation of the detailed parts list for the TGK4235 model.

TGK4235 Parts Listing (Final)

Final part of the detailed parts list for the TGK4235 model.

Bolton Tools GK-4235 Specifications

General IconGeneral
ModelGK-4235
TypeHorizontal Band Saw
Motor Power1 HP
Voltage220V
Blade Size1 in
Arbor Size1/2"
Max Cutting Capacity Square Tube at 90 degrees5" x 5"
Max Cutting Capacity Round Tube at 45 degrees3"
Max Cutting Capacity Square Tube at 45 degrees3" x 3"
Max Cutting Capacity Rectangular Tube at 45 degrees3-1/2" x 5"

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