Wood-mizer LT40 DH Series

Questions and Answers

G
George KnightAug 2, 2025
Why do Wood-mizer LT40 DH blades dull quickly?
- J
  Joshua DavenportAug 3, 2025
  Wood-mizer Industrial Equipment blades may dull quickly due to several reasons. It could be caused by dirty logs; in this case, clean or debark logs, especially on the entry side of the cut. Another cause may be overheating the teeth when grinding, which softens them; grind just enough metal to restore sharpness and use water/coolant while sharpening the blade. Finally, poor sharpening techniques can also lead to blades dulling quickly; ensure the tip is being sharpened completely.
R
Renee MillerAug 6, 2025
What to do if drive belts wear prematurely or jump on Wood-mizer LT40 DH Industrial Equipment?
- A
  armstrongmelissaAug 7, 2025
  If the drive belts on your Wood-mizer Industrial Equipment are wearing prematurely or jumping, it is likely due to the engine/motor and drive pulleys being out of alignment. To resolve this, align the pulleys.
K
Kaitlin WatsonAug 11, 2025
Why do Wood-mizer Industrial Equipment blades break prematurely?
- G
  Gregory FryeAug 11, 2025
  Wood-mizer Industrial Equipment blades may break prematurely due to several factors. Check if the rubber belts on the blade wheels are worn to the point that the blade contacts the metal pulley. Look for shiny spots on the edge of wheels, and if found, change the blade wheel belts (B-57). Also, poor sharpening techniques can cause premature breakage. Ensure that you are tensioning the blade to the recommended specifications and using proper sharpening techniques.
J
Jennifer GarciaAug 15, 2025
What to do if Wood-mizer LT40 DH blade does not stop immediately after disengaging?
- C
  Chris ShortAug 15, 2025
  If the blade on your Wood-mizer Industrial Equipment does not stop immediately after disengaging, the brake strap may be too loose. Adjust the brake strap to resolve this issue.
J
Jason CoxAug 19, 2025
How to fix Wood-mizer Industrial Equipment blade that does not track right?
- E
  Erin DavisAug 19, 2025
  If your Wood-mizer Industrial Equipment blade does not track right, it could be due to an incorrect cant adjustment. Readjust on the Drive Wheel. Alternatively, flat or worn belts can cause tracking issues, so replace the B-57 belts.
M
megan70Aug 25, 2025
What to do if drive belts come off pulleys when disengaging blade on Wood-mizer LT40 DH Industrial Equipment?
- E
  erin49Aug 25, 2025
  If the drive belts on your Wood-mizer Industrial Equipment come off the pulleys when disengaging the blade, it could be due to several reasons. The brake strap may be too loose, so adjust the brake strap. Another cause may be a misaligned brake drum, so realign it on the drive shaft. Also, check if the brake strap is tightened with one edge too loose and one edge too tight, and adjust the brake strap accordingly.
W
wellsbethAug 28, 2025
Why Wood-mizer Industrial Equipment blade guides do not spin?
- I
  imckeeAug 29, 2025
  If the blade guides on your Wood-mizer Industrial Equipment do not spin, it could be due to frozen or stiff bearings. If the bearings are frozen, replace them. If they are stiff, grease the bearings.

Summary

SECTION 1 SAFETY & GENERAL INFORMATION

Blade Handling

Instructions for safely handling and changing bandsaw blades, including warnings.

Sawmill Setup

Guidelines for safely setting up the sawmill, including wheel chocking and outrigger placement.

Sawmill Operation

Key safety instructions and warnings for operating the sawmill, covering guards, moving parts, and personnel.

Sawmill Maintenance

Safety precautions related to maintenance, such as securing the cutting head and fire extinguisher requirements.

Belt Sizes

Table detailing belt sizes and corresponding Wood-Mizer part numbers for various sawmill components.

Blade Sizes

Information on Wood-Mizer TRU•SHARP™ blade types for efficient sawing based on wood and engine size.

Engine;Motor Specifications

Details on available engine/motor options and specifications for the LT40 Series DH sawmills.

Hydraulic System

Overview of the hydraulic system specifications, including pump details and pressure ratings.

Components

Diagram illustrating the major components of the Wood-Mizer LT40 Series DH sawmill.

Hydraulic Schematics

Detailed hydraulic schematics for LT40 Series DH, DH5, and DH7 models.

Hydraulic Components

List of hydraulic components with manufacturer and Wood-Mizer part numbers.

Hydraulic Hoses

Table detailing hydraulic hoses, including ID, color code, length, application, and part number.

SECTION 2 SETUP & OPERATION

Stationary Sawmill Setup

Instructions for setting up a stationary sawmill on firm, level ground using anchor bolts.

Portable Sawmill Setup

Procedure for setting up a portable sawmill, including outrigger adjustment and securing the machine.

Replacing The Blade

Step-by-step guide on how to safely replace the bandsaw blade, including tensioning.

Tensioning The Blade

Instructions on how to properly tension the blade using the hydraulic tensioning handle and gauge.

Tracking The Blade

Procedure for tracking the blade on the wheels, including adjustments using the cant control.

Starting The Engine (or Motor)

Safety precautions and steps for starting the sawmill's engine or motor.

Hydraulic Control Operation

Explanation of how to operate the hydraulic control levers for various functions like clamping and turning.

Loading, Turning, and Clamping Logs

Detailed steps for loading, turning, and clamping logs onto the sawmill bed for cutting.

Up;Down Operation

Instructions on using the up/down switch to adjust the cutting head height.

Power Feed Operation

Guide to operating the power feed system, including carriage speed and direction controls.

Cutting The Log

Step-by-step process for performing standard log cutting operations on the sawmill.

Preparing The Sawmill For Towing

Instructions for properly preparing the sawmill for safe transportation by towing.

SECTION 3 MAINTENANCE

Wear Life

Estimated life expectancy of common replacement parts for planning maintenance.

Blade Guides

Procedures for checking and maintaining blade guide rollers and blocks for optimal performance.

Sawdust Removal

Instructions for removing sawdust from various parts of the sawmill to prevent buildup.

Carriage Track, Wiper & Scrapers

Maintenance tasks for the carriage track, including cleaning, lubrication, and wiper adjustment.

Vertical Mast Rails

Guidelines for cleaning and lubricating the vertical mast rails.

Blade Tensioner

Maintenance procedures for the blade tensioner system, including lubrication and fluid checks.

Drive Belt Adjustment

Steps for adjusting drive belt tension for the engine and other components.

Clutch Handle Adjustment

Procedure for adjusting the clutch handle linkage for proper engagement.

Hydraulic System

Checks and maintenance for the hydraulic fluid level and system components.

Up;Down System

Maintenance for the up/down system, including greasing bearings and adjusting chain tension.

Power Feed

Maintenance procedures for the power feed system, including belt and chain adjustments.

SECTION 4 TROUBLESHOOTING GUIDE

Sawing Problems

Common sawing issues, their causes, and solutions, such as dull blades or wavy cuts.

Electrical Problems

Troubleshooting guide for electrical issues with motors, switches, and battery charging.

Power Feed Problems

Solutions for jerky, sluggish, or non-responsive power feed system operation.

Power Feed Circuit Troubleshooting

Using LED lights on the control module to diagnose power feed circuit issues.

Hydraulic Problems

Troubleshooting common hydraulic issues like no pump response or fluid leaks.

Engine;Motor and Drive Pulleys Alignment

Procedures for aligning engine/motor and drive pulleys for optimal belt performance.

Circuit Breaker Operation

Information on how to locate and reset circuit breakers protecting the sawmill's electrical systems.

SECTION 5 SAWMILL ALIGNMENT

Pre-Alignment Procedures

Overview of routine and complete alignment procedures to ensure sawing accuracy.

Frame Setup

Instructions for setting up the sawmill frame on firm, level ground for proper alignment.

Blade Installation And Alignment

Steps for installing the blade and aligning it on the wheels for correct tracking.

Saw Head Slide Pad Adjustment

Procedure for checking and adjusting the saw head slide pads for smooth movement.

Adjusting The Lower Track Rollers

Detailed instructions for adjusting the lower track rollers to ensure square cuts.

Adjusting Bed Rails To The Blade

Steps for adjusting the bed rails to ensure they are parallel to the blade.

Blade Guide Arm Vertical Adjustment

Procedure for adjusting the vertical position and tilt of the blade guide arm.

Blade Guide Arm Horizontal Adjustment

Instructions for adjusting the horizontal position of the blade guide arm and roller flange.

Aligning the Blade Guides

Steps for aligning the blade guides, including deflection, tilt, and spacing adjustments.

Blade Deflection

Steps to achieve proper blade deflection using the blade guides.

Blade Guide Vertical Tilt Adjustment

Procedure for adjusting the vertical tilt of the blade guide rollers.

Blade Guide Spacing

Instructions for setting the correct spacing for the blade guide flanges.

Horizontal Tilt Adjustment

Procedure for adjusting the horizontal tilt of the blade guide rollers.

Blade Guide Block Adjustment

How to adjust the gap between the blade guide block and the blade for correct cutting.

Horizontal Adjustment of Side Supports

Procedure for ensuring side supports are square to the bed for accurate lumber.

Vertical Adjustment of Side Supports

Steps to adjust side supports to be vertical and at a 90° angle to the bed rails.

Clamp Stop;Stop Bolt Adjustment

Procedure for adjusting clamp stops and stop bolts for proper alignment.

Saw Head Tilt

Adjusting lower track roller horizontal bolts to compensate for saw head drop.

Blade Height Scale Adjustment

Ensuring the blade height scale accurately reflects the distance from blade to bed rails.

Board Return Bracket

Instructions for adjusting the board return bracket's position relative to the blade.