Wood-mizer LT20 B1-4 E15 SMH User Manual
  1. Manuals
  2. Brands
  3. Wood-mizer Manuals
  4. Log Splitter
  5. LT20 B1-4 E15 SMH
  6. User manual

Wood-mizer LT20 B1-4 E15 SMH User Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the LT20 B1-4 E15 SMH and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Wood-mizer LT20 B1-4 E15 SMH

Summary of Contents for Wood-mizer LT20 B1-4 E15 SMH

  • Page 2 Wood-Mizer ® Safety, Setup, Operation & Maintenance Manual LT20 B1-4 E15 SMH rev. A6.08 LT20 B1-4 D22 SMH rev. A7.04 LT20 B1-4 G25 SMH rev. A7.04 Safety is our #1 concern! Read and understand all safety information and instructions before operating, setting up or maintaining this machine.

  • Page 3: Table Of Contents

    Table of Contents Section-Page General Contact Information Branches & Authorized Sales CentersWood-Mizer Locations (North and South America) SECTION 1 SAFETY & GENERAL INFORMATION Blade Handling..................1-2 Sawmill Setup..................1-2 Sawmill Operation..................1-3 Sawmill Maintenance ................1-5 Safety Instructions ..................1-5 Observe Safety Instructions Wear Safety Clothing Keep Sawmill And Area Around Sawmill Clean Dispose Of Sawing By-Products Properly Check Sawmill Before Operation...
  • Page 4 Table of Contents Section-Page SECTION 3 SETUP & OPERATION Sawmill Setup..................3-1 Setting up sawmills equipped with non-adjustable legs Setting up sawmills equipped with outrigger legs Sawmills with cable guide Middle Track Cover ................3-10 Replacing the Blade................3-11 Tensioning the Blade................3-12 Tracking the Blade ................3-13 Starting the Motor (AC Sawmill) ............3-14 Loading, Turning, And Clamping Logs ..........3-16 Up/Down Operation ................3-19...
  • Page 5 Table of Contents Section-Page SECTION 6 SAWMILL ALIGNMENT Pre-Alignment Procedures..............6-1 Frame Setup....................6-2 Blade Installation And Alignment............6-2 Blade Wheel Alignment .................6-5 Adjusting The Lower Track Rollers.............6-10 Adjusting Bed Rails To The Blade............6-13 Blade Guide Arm Vertical Adjustment ..........6-14 Blade Guide Arm Feed Chain Adjustment...........6-15 Saw Head Backlash Removal...............6-17 6.10 Blade Guide Arm Horizontal Adjustment..........6-19...
  • Page 6 Sawmill and Customer Identification Each Wood-Mizer sawmill has a 17-digit Vehicle Identification Number (VIN). See the figure below for VIN locations. See the chart for VIN description. V.I.N. LOCATIONS F9 017 F9 .01 V.I.N. DESCRIPTION...
  • Page 7 Each sawmill is also identified with a model number which includes the base model and the engine/motor configuration. See the figure for a description of the model number. LT20B Engine/Motor Basic Sawmill I.D. Configuration MODEL NUMBER DESCRIPTION When you pick up your mill, you will receive a customer number. Both the VIN and your customer number expedite our service to you.

  • Page 8: General Contact Information

    Getting Service Wood-Mizer is committed to providing you with the latest technology, best quality and strongest customer service available on the market today. We continually evaluate our customers’ needs to ensure we’re meeting current wood-processing demands. Your comments and suggestions are welcome.

  • Page 9: Branches & Authorized Sales Centerswood-Mizer Locations (North And South America)

    Branches & Authorized Sales CentersWood-Mizer Locations (North and South America) EUROPE UNITED STATES European Headquarters World Headquarters Wood-Mizer Industries Sp. z o.o. Wood-Mizer LLC Nagórna 114, 62-600 Koło, Poland 8180 West 10th Street Tel.: +48-63-26-26-000 Indianapolis,Indiana 46214-2400, Fax: +48-63-27-22-327 www.woodmizer.eu Tel.: +1-317-271-1542...
  • Page 10 CROATIA Krešimir Pregernik ITALY Pasquale Felice SERBIA Dragan Markov Pregimex d.o.o. Wood-Mizer Italia Srl Wood-Mizer Balkan d.o.o. S. Batušiæa 31, 10090 Zagreb Cda. Capoiaccio SN Svetosavska GA 3/3; P. Fah 25 Tel.:/Fax: +3851-38-94-668 86012 Cercemaggiore 23 300 Kikinda Krešimir Pregernik Campobasso Tel.:/Fax: +381-230-25-754...
  • Page 11 Robert Moxham DENMARK Kevin Christiansen TRANSILVANIEI Nr. 5 Regional Direction - Asia Kevin Christiansen's Sibiu, Cisnadie 555300 Wood-Mizer Asia Manufacturing Co., Ltd. savværker PMV Tel.:/Fax: : +40-369-405-433 No.2, Gongyequ 40th Rd. Xitun District, Arnborgvej 40, 7330 Brande- Fasterholt GSM: +40-745-707-323 Taichung City, 40768, Taiwan, R.O.C.

  • Page 12: Safety & General Information

    It is always the owner's responsibility to comply with all applicable federal, state and local laws, rules and regulations regarding the ownership, operation and towing of your Wood-Mizer sawmill. All Wood-Mizer mill owners are encouraged to become thoroughly familiar with these applicable laws and comply with them fully while using or towing the mill.

  • Page 13: Blade Handling

    Safety & General Information Blade Handling Sawmill Maintenance  Blade Handling DANGER! Always disengage the blade and shut off the sawmill engine before changing the blade. Failure to do so will result in serious injury. WARNING! Always wear gloves and eye protection when handling bandsaw blades.

  • Page 14: Sawmill Operation

    Safety & General Information Sawmill Operation Sawmill Operation IMPORTANT! The sawmill is intended for sawing wood only. The sawmill must not be used for other purposes such as cutting ice, metal or any other materials. See Section 1.8 for log size capacities of the machine. IMPORTANT! The operator of the sawmill should get adequate training in the operation and adjustment of the...
  • Page 15 Safety & General Information Sawmill Operation WARNING! Secure all loose clothing and jewelry before operating the sawmill. Failure to do so may result in serious injury or death. WARNING! Always make sure log is clamped securely before sawing. Failure to do so may result in serious injury or death.

  • Page 16: Sawmill Maintenance

    Safety & General Information Sawmill Maintenance Sawmill Maintenance WARNING! Always secure the cutting head with a chain or a brace before adjusting the up/down chain. The cutting head may fall, causing severe injury or death. WARNING! Always secure the cutting head with a chain or a brace before adjusting the mast pads.

  • Page 17: Wear Safety Clothing

    It is always the owner's responsibility to comply with all applicable federal, state and local laws, rules and regulations regarding the ownership and operation of your Wood-Mizer sawmill. All Wood-Mizer sawmill owners are encouraged to become thoroughly familiar with these applicable laws and comply with them fully while using the machine.

  • Page 18: Keep Sawmill And Area Around Sawmill Clean

    Safety & General Information Keep Sawmill And Area Around Sawmill Clean Keep Sawmill And Area Around Sawmill Clean DANGER! Maintain a clean and clear path for all necessary movement around the sawmill and lumber stacking areas. Failure to do so will result in serious injury. Dispose Of Sawing By-Products Properly IMPORTANT! Always properly dispose of all sawing...

  • Page 19: Keep Hands Away

    Safety & General Information Keep Hands Away Keep Hands Away DANGER! Always shut off the blade motor before changing the blade. Failure to do so will result in serious injury. DANGER! Motor components can become very hot during operation. Avoid contact with any part of a hot motor. Contact with hot motor components can cause serious burns.
  • Page 20 Safety & General Information Use Proper Maintenance Procedures WARNING! Consider all electrical circuits energized and dangerous. WARNING! Disconnect and lock out power supply before servicing the sawmill! Failure to do so may result in serious injury. WARNING! Never assume or take the word of another person that the power is off;...

  • Page 21: Keep Safety Labels In Good Condition

    Safety & General Information Keep Safety Labels In Good Condition Keep Safety Labels In Good Condition IMPORTANT! Always be sure that all safety decals are clean and readable. Replace all damaged safety decals to prevent personal injury or damage to the equipment. Contact your local distributor, or call your Customer Service Representative to order more decals.
  • Page 22 Safety & General Information Keep Safety Labels In Good Condition TABLE 1-1 099219 Blade tension. Turning the bolt clockwise will increase the blade tension and turning the bolt counterclockwise will decrease the tension. 099219 099221 CAUTION! Keep all persons a safe distance away from work area when operating the machine.
  • Page 23 Safety & General Information Keep Safety Labels In Good Condition TABLE 1-1 096316 CAUTION! Do not open or close the electric box when the switch is not in the “0” position. 096319 CAUTION! Disconnect power supply before opening the box. 512234 Clean chain from sawdust every 50 hours of operation or once a week...
  • Page 24 Safety & General Information Keep Safety Labels In Good Condition TABLE 1-1 512156 Lubricate chain every 50 hours of operation or once a week 512156 099222 CAUTION! Sawdust outlet. Protect eyes! 096321 Blade movement direction S12004G CAUTION! Always wear safety goggles when operating the sawmill! S12005G CAUTION! Always wear protective ear...
  • Page 25 Safety & General Information Keep Safety Labels In Good Condition TABLE 1-1 501465 CAUTION! Always wear safety boots when operating the sawmill 501467 Lubrication point P11789 Aligning the blade on the wheels 510643 Setting the blade tension indicator 510643 1015-1088 70-75 1088-1160 75-80...

  • Page 26: Belt Sizes

    2925 r.p.m. - motor rotation direction 2925 RPM S20097F Belt Sizes See Table 1-2. Belt sizes for the LT20 sawmill are shown. Description Belt Size Wood-Mizer Part # Motor Drive Belt E11 & E15 2BX81 014819-2 Engine Drive Belt D22, G25 2BX84...

  • Page 27: Blade Sizes

    Blade Sizes Blade Sizes See Table 1-1. Wood-Mizer TRU•SHARP™ offers three types of blades to provide efficient sawing for all models of sawmills. The engine/motor size of your sawmill and the type of wood you saw should determine which blade you choose for optimum performance.

  • Page 28: Engine/Motor Specifications

    Safety & General Information Engine/Motor Specifications Maximum log capacity for a basic mill is 2000 Kg. See Table 1-4. The performance capacity of the LT20 series sawmill is listed below. Peak cutting rates are measured in 12” (30 cm) wide red oak and represent the capability of the sawmill only.

  • Page 29: Noise Level

    Safety & General Information Noise Level 1.10 Noise Level See Table 1-7. The average noise level is given in the table below Sawmill Noise Level LT20B3E15SMH = 82 dB (A) LT20B3D22SMH = 85,6 dB (A) TABLE 1-7 1.11 Overall Dimensions See Table 1-8.

  • Page 30: Overall Dimensions (Packed)

    Safety & General Information Overall Dimensions (Packed) 1.12 Overall Dimensions (Packed) See Table 1-9. The overall dimensions (packed) of the LT20 sawmill for transporting. Model Length Width Height LT20B1-4 E15SMH 2.13 m 2,3 m LT20B1-4 E15SRC 2.13 m 2.83 m TABLE 1-9 1.13 Chains See Table 1-10.

  • Page 31: Dust Extractor Specifications

    Safety & General Information Dust Extractor Specifications 1.14 Dust Extractor Specifications See Table 1-11. Specifications of the dust extractors used on the resaw for each saw head are listed below. Airflow 1200 m 3937ft Inlet diameter 100 mm (5.9”) Motor power 1,5 kW Number of sacks 1 pcs...

  • Page 32: Sawmill Assembly

    Mounting Parts of LT20 Sawmills with Electric Motors SECTION 2 SAWMILL ASSEMBLY Mounting Parts of LT20 Sawmills with Electric Motors 2.1.1 Specifications of Parts Table 1: Figure Wood-Mizer Part Description LT20B3 090676 L Sawmill Saw Head 096726 Motor Kit 500795...

  • Page 33: Specifications Of Parts

    SAWMILL ASSEMBLY Specifications of Parts Table 1: 507455-1 High Leg (adjustable leg kit) 500775-1 Wide Foot (adjustable leg kit) 099728-1 Bed Extension Tube 087105-1 Bumper Bracket 091828 Bumper 015023 Main Tube Rear Cover 510230 Complete Clamp Depends on order 100903-1 Sawdust Chute Weldment 100999...
  • Page 34 SAWMILL ASSEMBLY Specifications of Parts Table 1: 091852-1 Limit Switch Bracket 500600 Toe Board Crank 15doc063022 SAWMILL ASSEMBLY...

  • Page 35: Specifications Of Fasteners

    SAWMILL ASSEMBLY Specifications of Fasteners 2.1.2 Specifications of Fasteners Table 2: Wood-Mizer No. Description Qty. LT20B3 Sample designations of fasteners: M8 Nut M8x20 Bolt 8.4 Washer F81036-1 NUT, M16-5.8 HEX ZINC F81055-1 WASHER, 10.5 FLAT ZINC F81033-1 NUT, M10-8-B HEX NYLON ZINC LOCK F81003-33 BOLT, M10X120-8.8 CARRIAGE ZINC...

  • Page 36: Tools Necessary For Assembling The Sawmill

    SAWMILL ASSEMBLY Tools Necessary for Assembling the Sawmill 2.1.3 Tools Necessary for Assembling the Sawmill Table 3: Required Tools Flat Wrench #8 1 pcs Flat Wrench #10 2 pcs Flat Wrench #13 2 pcs Flat Wrench #17 2 pcs Flat Wrench #19 2 pcs Ratchet Wrench #30 1 pcs...

  • Page 37: Unpacking The Sawmill

    SAWMILL ASSEMBLY Unpacking the Sawmill Unpacking the Sawmill IMPORTANT! The machine can be lifted with a forklift only. Use a forklift with lifting capacity of at least 2000kg, and forks being at least 2 m in length. 2.2.1 Standard Version of the Sawmill FIG.

  • Page 38: Sawmill With Remote Equipment

    SAWMILL ASSEMBLY Sawmill with Remote Equipment 2.2.2 Sawmill with Remote Equipment FIG. 2-2 1. Cut the bands holding the components together. 2. Remove the parts which are placed on the box. Next remove the parts from inside of the box. Remove the box from the pallet. 3.
  • Page 39 SAWMILL ASSEMBLY Sawmill with Remote Equipment correct rotation directions of all sawmill motors. 4. Carefully raise the cutting head by about 20 cm. 5. Turn the key switch to the “0” position. Turn the main power switch to the OFF position and disconnect the power cord.

  • Page 40: Bed Frame Assembly

    SAWMILL ASSEMBLY Bed Frame Assembly Bed Frame Assembly IMPORTANT! With all screw joints without split lock washer or lock nylon nut, use the "LOCTITE 243" (blue, of average durability, for screw joints). 1. Mount the legs to each bed section as shown below. See Figure 2-3.
  • Page 41 SAWMILL ASSEMBLY Bed Frame Assembly See Figure 2-5. Adjustable legs are shown below. 100559-1 Carriage Bolt, M10x120 101187-1 Nut, M10 Washer, 10.5 Bolt, M10x125 Washer, 10.5 Nut, M20 500775-1 099281-1 FIG. 2-6 2. Mount the bed segments together. SAWMILL ASSEMBLY 15doc063022 2-10...
  • Page 42 SAWMILL ASSEMBLY Bed Frame Assembly Nut, M16 Washer, 13 Washer, 17 Nut, M12 Bolt, M12x100 Bolt, M16x160 Washer, 13 Bolt, M12x130 FIG. 2-7 3. Align the bed sections. Put the flat bar against the upper track rail and check if it touches the rail along its entire lenght.
  • Page 43 SAWMILL ASSEMBLY Bed Frame Assembly See Figure 2-8. Mounting Bolt Adjustment Bolt Track Rail Bar must touch the track rail along its entire lenght FIG. 2-9 Next place the bar on the top of the upper track rail. The bar must touch the rail along its entire lenght.
  • Page 44 SAWMILL ASSEMBLY Bed Frame Assembly 4. Mount the bed extensions. Mount the legs to the bed extensions. Next mount the main tube of the bed extension and the supporting tube together. Mount the complete bed extension to the sawmill frame. See Figure 2-12.
  • Page 45 SAWMILL ASSEMBLY Bed Frame Assembly See Figure 2-14. Adjustment Bolt, M16x160 FIG. 2-15 6. Mount the saw head front bumper with the bracket and the main tube cover. SAWMILL ASSEMBLY 15doc063022 2-14...
  • Page 46 SAWMILL ASSEMBLY Bed Frame Assembly See Figure 2-16. Bolt M12x35 Bumper (091828) Washer 13 Nut, M12 Cover (015023) Bumper Bracket (087105-1) Bolt M8x16 Washer 8,4 FIG. 2-17 7. Mount the rear bumper. 2-15 15doc063022 SAWMILL ASSEMBLY...
  • Page 47 SAWMILL ASSEMBLY Bed Frame Assembly See Figure 2-18. Bumper Bracket (089712-1) Washer, 8,4 Bolt, M8x25 Limit Switch Nut, M8 Bracket 091852-1 FIG. 2-19 8. Mount the side tube with the leg. SAWMILL ASSEMBLY 15doc063022 2-16...
  • Page 48 SAWMILL ASSEMBLY Bed Frame Assembly See Figure 2-20. Carriage Bolt, M10x120 Nut, M10 Lock 100868-1 Washer, 10,5 Side Tube Nut, M12 Lock 100551-1 Washer, 13 Washer, Bolt, M12x55 10,5 Bolt, M10x75 Nut, M10 Lock FIG. 2-21 9. Mount the log clamp. 2-17 15doc063022 SAWMILL ASSEMBLY...
  • Page 49 SAWMILL ASSEMBLY Bed Frame Assembly See Figure 2-22. les_033_C Nut, M10 Lock Washer, 10.5 Bolt, M10x80 FIG. 2-23 10. Mount the sawdust chute. See Figure 2-24. Bolt, M8x16 Washer, 8,4 FIG. 2-25 11. Mount the power cord bracket. SAWMILL ASSEMBLY 15doc063022 2-18...
  • Page 50 SAWMILL ASSEMBLY Bed Frame Assembly See Figure 2-26. Washer, 10,5 Nut, M10 Bolt, M10x50 Power Cord FIG. 2-27 12. Mount the log ramps (optional equipment). 2-19 15doc063022 SAWMILL ASSEMBLY...
  • Page 51 SAWMILL ASSEMBLY Bed Frame Assembly See Figure 2-28. Log Ramps les_036_B FIG. 2-29 SAWMILL ASSEMBLY 15doc063022 2-20...

  • Page 52: Setup & Operation

    SETUP & OPERATION Sawmill Setup SECTION 3 SETUP & OPERATION Sawmill Setup IMPORTANT! Before starting to use the sawmill you have to meet the following conditions: Set up the sawmill on firm and level ground.  Under roof, the sawmill can be operated with a sawdust collection system only. ...

  • Page 53: Setting Up Sawmills Equipped With Non-Adjustable Legs

    SETUP & OPERATION Setting up sawmills equipped with non-adjustable legs IMPORTANT! When starting the machine for the first time, check that main motor rotation direction is as indicated by the arrow located on the motor body (fan guard). If the rotation direction is incorrect, invert the phases in the phase inverter in the power socket (electric box).
  • Page 54 SETUP & OPERATION Setting up sawmills equipped with non-adjustable legs les_009_A FIG. 3-1 doc063022 SETUP & OPERATION...

  • Page 55: Setting Up Sawmills Equipped With Outrigger Legs

    SETUP & OPERATION Setting up sawmills equipped with outrigger legs 3.1.2 Setting up sawmills equipped with outrigger legs WARNING! If it is necessary to set up the sawmill on ground with more than 3 incline, dig out areas for outrigger legs to prevent the sawmill from tipping over.
  • Page 56 SETUP & OPERATION Setting up sawmills equipped with outrigger legs See Figure 3-3. les069_A FIG. 3-3. OUTRIGGER PLACEMENT doc063022 SETUP & OPERATION...
  • Page 57 SETUP & OPERATION Setting up sawmills equipped with outrigger legs CAUTION! When setting up the sawmill on boggy terrain (such as deep mud or sand), place a board or a metal plate under each outrigger leg to prevent the legs from sinking. NOTE: Make sure the unit is level before securing.The sawmill mast should not be tilted from the vertical more than 3...

  • Page 58: Sawmills With Cable Guide

    SETUP & OPERATION Sawmills with cable guide See Figure 3-5. Bed Rail Stop Block Side Support FIG. 3-5 3.1.3 Sawmills with cable guide doc063022 SETUP & OPERATION...
  • Page 59 SETUP & OPERATION Sawmills with cable guide See Figure 3-6. Install the guiding rail. FIG. 3-6 See Figure 3-7. SETUP & OPERATION doc063022...
  • Page 60 SETUP & OPERATION Sawmills with cable guide FIG. 3-7 doc063022 SETUP & OPERATION...

  • Page 61: Middle Track Cover

    SETUP & OPERATION Middle Track Cover Middle Track Cover Before operating the sawmill do as follows: 1. Clean the upper and lower rails to remove any sawdust and rust preventive. 2. Unbolt and remove the middle track cover from its storage position. 3.

  • Page 62: Replacing The Blade

    SETUP & OPERATION Replacing the Blade Replacing the Blade DANGER! Always shut off the sawmill motor before changing the blade. Failure to do so may result in serious injury. WARNING! Always wear gloves and eye protection whenever handling bandsaw blades. Changing blades is safest when done by one person! Keep all other persons away from work area when changing blades.

  • Page 63: Tensioning The Blade

    SETUP & OPERATION Tensioning the Blade Tensioning the Blade See Figure 3-9. Turn the blade tension handle clockwise until the tension gauge indicates the recommended tension. Check the blade tension occasionally when adjusting the cant control or while cutting. As the blade and belts heat up and stretch, the blade tension will change. Also, ambient temperature changes can cause tension to change.

  • Page 64: Tracking The Blade

    SETUP & OPERATION Tracking the Blade Tracking the Blade 1. Open the blade housing cover. 2. Turn the key switch to the ”H” position. 3. Manually spin one of the blade wheels until the blade positions itself on the blade wheels. 4.

  • Page 65: Starting The Motor (Ac Sawmill)

    SETUP & OPERATION Starting the Motor (AC Sawmill) blade guide spacing and location. (See Section 5 for more information.) Starting the Motor (AC Sawmill) See the appropriate manual supplied with your specific motor configuration for starting and operating instructions. IMPORTANT! For safe operation of the sawmill, one person is sufficient, however in case of manual collection of sawn material, at least two persons should be assigned to these activities in order not to...
  • Page 66 SETUP & OPERATION Starting the Motor (AC Sawmill) The electrical box should be protected against dust and moisture. Regularly disconnect power supply and clean the inside of the electrical box of dust, sawdust, etc. Do not operate or leave the sawmill with the electrical box door open.

  • Page 67: Loading, Turning, And Clamping Logs

    SETUP & OPERATION Loading, Turning, And Clamping Logs Loading, Turning, And Clamping Logs CAUTION! Make sure the clamps and the toe boards are below bed level before loading a log onto the bed. Also, be sure the cutting head is moved far enough forward so the log does not hit it. To Load Logs: 1.
  • Page 68 SETUP & OPERATION Loading, Turning, And Clamping Logs See Figure 3-12. les016_D FIG. 3-12 3. Be sure to leave crank in the bottom position to avoid damage to the blade. See Figure 3-1. sm0379_A FIG. 3-1 4. Make sure the side supports are positioned low enough for the blade to pass over them. If they are 3-17 doc063022 SETUP &...
  • Page 69 SETUP & OPERATION Loading, Turning, And Clamping Logs not, back the clamp off slightly and push the side supports down until they are positioned below the level of your first few cuts. 5. Use the toe board levers to level the log if desired. To Level A Tapered Log: Use the toe board levers to raise either end of a tapered log, if desired.

  • Page 70: Up/Down Operation

    SETUP & OPERATION Up/Down Operation Up/Down Operation 1. Install a blade and check for correct blade tension. (See Section 2.4.) 2. Set the cutting head to the desired height. (The blade height scale shows the height of the blade above the bed rails.) See Figure 3-13.

  • Page 71: Blade Guide Arm Operation

    SETUP & OPERATION Blade Guide Arm Operation Blade Guide Arm Operation 1. Look down the length of the log to see its maximum width. The outer blade guide should be adjusted to clear the widest section of the log by less than about 25 mm. 2.

  • Page 72: Power Feed Operation

    SETUP & OPERATION Power Feed Operation 3.10 Power Feed Operation See Figure 3-15. The power feed system moves the carriage forward and backward by using two switches on the control panel. Carriage Forward Feed Rate Adjustment Carriage Reverse 20_121B FIG. 3-15 Carriage Feed Rate The carriage feed rate switch controls the speed at which the carriage travels forward.
  • Page 73 SETUP & OPERATION Power Feed Operation The middle position (shown in the figure above) is the neutral position. The power feed switch is designed to return to the neutral position when released. If the switch remains engaged, manually move it to the neutral position. Repair the switch. (See Section 4.2.) WARNING!

  • Page 74: Cutting The Log

    Cutting The Log 3.11 Cutting The Log The following steps guide you through normal operation of the Wood-Mizer sawmill. 1. Once the log is placed where you want it and clamped firmly, position the blade close to the end of the log.

  • Page 75: Edging

    Edging 3.12 Edging The following steps guide you through edging boards on the Wood-Mizer sawmill. 1. Raise the side supports to ½ the height of the flitches, or the boards that need to be edged. 2. Stack the flitches on edge against the side supports.

  • Page 76: Blade Height Scale

    SETUP & OPERATION Blade Height Scale 3.13 Blade Height Scale See Figure 3-16. The blade height scale is attached to the cutting head frame. It includes: a blade height indicator  an inch scale.  Blade Height Blade Height Quarter Quarter Indicator Indicator...
  • Page 77 SETUP & OPERATION Blade Height Scale To choose which scale to use, determine what finished thickness you want to end up with. The Grade Hardwood Quarter Scale provides thicker finished boards usually required by commercial buyers. The Standard Quarter Scale allows for kerf and shrinkage of finished boards suitable for most custom applications.

  • Page 78: Water Lube Operation

    SETUP & OPERATION Water Lube Operation 3.14 Water Lube Operation The Water Lube System keeps the blade clean. Water flows from a 5-gallon (18.9 liter) bottle through a hose to the blade guide where the blade enters the log. A valve in the bottle cap controls the amount of water flow.

  • Page 79: Maintenance

    MAINTENANCE Wear Life SECTION 4 MAINTENANCE This section lists the maintenance procedures that need to be performed. WARNING! Disconnect and lock out power supply before servicing, cleaning and doing maintenance to the saw! Failure to do so may result in serious injury. The Short Interval Maintenance Schedule lists procedures that need to be performed every 4, 8 or 24 hours.

  • Page 80: Blade Guides

    MAINTENANCE Blade Guides Blade Guides 1. Check the rollers for performance and wear every blade change. Make sure the rollers are clean and spinning freely. If not, rebuild them. Replace any rollers which have worn smooth or have become cone shaped. See The LT20 Parts manual for blade guide rebuild kits and complete roller assemblies.

  • Page 81: Carriage Track, Wiper & Scrapers

    MAINTENANCE Carriage Track, Wiper & Scrapers Carriage Track, Wiper & Scrapers See Figure 4-2. 1. Clean the upper and lower track rails to remove any sawdust and sap buildup every eight hours of operation. Lubricate the lower track rail by wiping it with Dexron III ATF. 2.

  • Page 82: Vertical Mast Rails

    MAINTENANCE Vertical Mast Rails Vertical Mast Rails Lubricate the vertical mast rails with WD40, clean and wipe them dry every 50 hours of operation. CAUTION! Never use grease on the mast rails as it will collect sawdust. Miscellaneous 1. Apply a thin film of a lithium grease to the blade guide arm to help prevent it from rusting. 2.

  • Page 83: Blade Tensioner

    MAINTENANCE Blade Tensioner Blade Tensioner 1. Grease the tensioner handle screw with a lithium grease every fifty hours of operation, but at least once a week. See Figure 4-3. Tensioner Handle Screw 20_006_B 090586 FIG. 4-3 MAINTENANCE 25doc063022...

  • Page 84: Blade Wheel Belts

    MAINTENANCE Blade Wheel Belts Blade Wheel Belts 1. Check the blade wheel belts for wear every 50 hours of operation. Replace as needed. 2. Periodically check all belts for wear. Replace any damaged or worn belts as needed. Brake Pads Adjustment ( Gas / Diesel Sawmills Only ) Check the brake pads for wear every 200 hours of operation.
  • Page 85 MAINTENANCE Brake Pads Adjustment ( Gas / Diesel Sawmills Only ) premature wear. Locking Bolts FIG. 4-4 MAINTENANCE 25doc063022...

  • Page 86: Drive Belt Adjustment

    MAINTENANCE Drive Belt Adjustment 4.10 Drive Belt Adjustment WARNING! Do not for any reason adjust the drive belts with the motor running. Doing so may result in serious injury. See Table 4-2. Check the drive belt tension after the first 20 hours, and every 50 hours thereafter.
  • Page 87 MAINTENANCE Drive Belt Adjustment 4. Tighten the four mounting bolts. 20_033a Adjustment Nuts Mounting Bolts FIG. 4-6 Periodically check the belts for wear. Replace if the belt is damaged or worn. MAINTENANCE 25doc063022...
  • Page 88 MAINTENANCE Drive Belt Adjustment DC Sawmills To tighten - turn the bolt clockwise; to loosen - turn it counterclockwise. Periodically check the belts for wear. Replace if the belt is damaged or worn. 4-10 25doc063022 MAINTENANCE...

  • Page 89: Up/Down System

    2. Every 500 hours check the up/down chain and chain brackets for wear. WARNING! If you noticed the up/down chain or chain brackets wear, immediately stop the work and contact Wood-Mizer Customer Service. Failure to do so will result in serious injury or death. MAINTENANCE 25doc063022...
  • Page 90 MAINTENANCE Up/Down System 3. Adjust the up/down gear belt tension as needed. WARNING! Before adjusting, always remove the key from the key switch. Failure to do so may result in serious injury. 4. Loosen the four set screws shown below. Adjust the belt tension and tighten the set screws.

  • Page 91: Power Feed System

    MAINTENANCE Power Feed System 4.12 Power Feed System 1. Adjust the power feed chain as needed. WARNING! Always remove the key from the key switch before adjusting the chain. Failure to do so may result in serious injury. See Figure 4-9. Loosen the locking nut. To tighten the chain, turn the adjusting bolt clockwise.
  • Page 92 MAINTENANCE Power Feed System See Figure 4-10. Keep the pulleys aligned to avoid premature V-belt and pulleys wear. FIG. 4-10 To align the pulleys, slide one of them on the shaft appropriately. 3. Adjust the power feed gear belt tension as needed. WARNING! Remove the key from the key switch before adjusting the belt tension.
  • Page 93 MAINTENANCE Power Feed System See Figure 4-11. Loosen the adjustment bolts shown below. Adjust the belt tension and tighten the adjustment bolts. 20_036 Adjustment Adjustment Bolts Bolts FIG. 4-11 4. If the power feed chain must be replaced, route a new chain as shown on the picture MAINTENANCE 25doc063022 4-15...
  • Page 94 MAINTENANCE Power Feed System below. FIG. 4-11 4-16 25doc063022 MAINTENANCE...

  • Page 95: Safety Devices Inspection (Ce Version Only)

    MAINTENANCE Safety Devices Inspection (CE Version Only) 4.13 Safety Devices Inspection (CE Version Only) LT20 AC – Safety devices inspection Safety devices on the LT20AC machine which must be checked before every shift: E-STOP button and its circuit inspection  Inspection of the control circuits with the E-STOP button pressed ...
  • Page 96 MAINTENANCE Safety Devices Inspection (CE Version Only) Saw Head Saw Head Forward Debarker Motor On/Off Saw Head Down Saw Head Reverse Debarker Arm In/Out Emergency Stop Button Blade Guide Arm In/Out 20_121c Blade Motor Blade Motor START/STOP Key Switch Button 2.
  • Page 97 MAINTENANCE Safety Devices Inspection (CE Version Only) Open the blade housing cover;  The blade motor should be stopped;  Try to start the motor. The blade motor should remain stopped;  Close the blade housing cover;  The blade motor should remain stopped until it is restarted with the START button. ...
  • Page 98 MAINTENANCE Safety Devices Inspection (CE Version Only) Saw Head Saw Head Forward Debarker Motor On/Off Saw Head Down Saw Head Reverse Debarker Arm In/Out Emergency Stop Button Blade Guide Arm In/Out 20_121d Engine Key Switch 2. Inspection of the control circuits with the E-STOP button pressed Start the engine;...
  • Page 99 MAINTENANCE Safety Devices Inspection (CE Version Only) 3. Blade cover safety switch and its circuits inspection Start the engine;  Turn the tensioner handle to engage the blade;  Open the blade housing cover;  The engine should be stopped; ...

  • Page 100: Filling Blade Tensioner Cylinder With Oil

    MAINTENANCE Filling Blade Tensioner Cylinder with Oil 4.14 Filling Blade Tensioner Cylinder with Oil 1. Loosen the blade tensioner completely. 2. Unscrew the oil pressure gauge. 3. Using an oiler equipped with a tube / hose, top up the oil level until the oil flows out of the cylinder.
  • Page 101 MAINTENANCE Filling Blade Tensioner Cylinder with Oil MAINTENANCE 25doc063022 4-23...
  • Page 102 MAINTENANCE Filling Blade Tensioner Cylinder with Oil 5. Seal the oil pressure gauge with Teflon tape and screw it back. 4-24 25doc063022 MAINTENANCE...

  • Page 103: Troubleshooting Guide

    Troubleshooting Guide Sawing Problems SECTION 5 TROUBLESHOOTING GUIDE Sawing Problems PROBLEM CAUSE SOLUTION Blades Dull Quickly Dirty logs Clean or debark logs, especially on entry side of the When grinding teeth, heating Grind just enough metal to too much and causing teeth to restore sharpness to the soften teeth.
  • Page 104 Troubleshooting Guide Sawing Problems PROBLEM CAUSE SOLUTION Boards Thick Or Thin On Stress in log which causes log After log has been squared, Ends Or Middle Of Board. to not lay flat on the bed. take equal cuts off opposing sides.

  • Page 105: Electrical Problems

    Replace drum switch or remove control panel cover and clean and lubricate contacts NOTE: Use only contact grease supplied by Wood-Mizer. Drum switch spring broken. Manually move the power feed or up/down switch back to neutral or "off" position. Replace drum switch spring.

  • Page 106: Power Feed Problems

    Drum switch is dirty. Clean drum switch and lubricate Speeds Or Does Not Move with contact grease supplied by Until Speed Is Above Halfway Wood-Mizer. Mark. Drum switch contacts are bad Check that contacts are in good condition and positively close circuit.
  • Page 107 Troubleshooting Guide Power Feed Problems PROBLEM CAUSE SOLUTION Power Feed Motor Overheats. Middle track oiler is dragging. Clean middle track oiler and lubricate with 30-weight oil or ATF (Automatic Transmission Fluid) such as Dexron II. Allow motor to cool before restarting. Ground is not level.

  • Page 108: Engine/Motor And Drive Pulleys Alignment

    Troubleshooting Guide Engine/Motor and Drive Pulleys Alignment Engine/Motor and Drive Pulleys Alignment 1. Install the drive belt. 2. Use a straight edge to align the engine/motor pulley to the drive pulley. Also check that the engine pulley is within 1/8" square with the drive pulley. Loosen the engine mounting bolts and rotate the engine if necessary.

  • Page 109: Sawmill Alignment

    SECTION 6 SAWMILL ALIGNMENT Pre-Alignment Procedures The Wood-Mizer sawmill is factory aligned. This section includes instructions on how to realign the sawmill completely. Be scrupulous when performing all alignment steps as sawmill alignment determines the accuracy of your cuts. The alignment procedure should be performed approximately every 1500 hours of operation (sooner if you regularly transport the sawmill over rough terrain).

  • Page 110: Frame Setup

    SAWMILL ALIGNMENT Frame Setup Frame Setup Stationary sawmills should be setup on firm, level ground before proceeding with alignment. Blade Installation And Alignment See Figure 6-1. Install a blade and apply the appropriate tension. Blade tension is adjusted with the tension handle shown below. Cant Control 20_119_A...
  • Page 111 SAWMILL ALIGNMENT Blade Installation And Alignment 3. Release the locking pin. To do this, pull it outward and rotate. 4. Push the clutch lever up lightly so that the locking pin drops down into the hole. At this position of the lever the blade brake is released and the drive belt is loosened. Locking pin in hole;...
  • Page 112 SAWMILL ALIGNMENT Blade Installation And Alignment [0.04"]). Do not let the teeth ride on the belt. SM0044D 3.0 mm (0.12”) ± 1 mm (0.04”) 1 1/4" 4.5 mm (0.18”) 1 1/4" ± 1 mm (0.04”) Blade Blade 1 1/2" 1 1/2" Blade Blade FIG.

  • Page 113: Blade Wheel Alignment

    SAWMILL ALIGNMENT Blade Wheel Alignment Blade Wheel Alignment The blade wheels should be adjusted so they are level in the vertical and horizontal planes. If the blade wheels are tilted up or down, the blade will want to travel in the tilted direction.
  • Page 114 SAWMILL ALIGNMENT Blade Wheel Alignment See Figure 6-4. Use the vertical adjustment screws to adjust the drive-side blade wheel. To tilt the wheel, loosen the top adjustment screw one quarter turn. Loosen the jam nut on the bottom adjustment screw and tighten the screw. Tighten the top and bottom jam nuts. To tilt the wheel, loosen the bottom adjustment screw one quarter turn.
  • Page 115 SAWMILL ALIGNMENT Blade Wheel Alignment See Figure 6-5. Use the vertical adjustment screws to adjust the idle-side blade wheel. To tilt the wheel up, loosen the bottom adjustment screw one quarter turn. Loosen the jam nut on the top adjustment screw and tighten the screw. Tighten the top and bottom jam nuts.
  • Page 116 SAWMILL ALIGNMENT Blade Wheel Alignment 150060 3.0 mm (1/8”) ± 1 mm (3/64”) 1 1/4" 1 1/4" Blade Blade FIG. 6-6 See Figure 6-7. Use the cant control adjustment to adjust the idle-side blade wheel. If the blade is too far forward on the wheel, turn the cant control counterclockwise. If it is too far back on the wheel, turn the cant control clockwise.
  • Page 117 SAWMILL ALIGNMENT Blade Wheel Alignment nut. Adjustment Adjustment Screw Screw 20_117 FIG. 6-8 SAWMILL ALIGNMENT doc063022...

  • Page 118: Adjusting The Lower Track Rollers

    SAWMILL ALIGNMENT Adjusting The Lower Track Rollers Adjusting The Lower Track Rollers See Figure 6-9. Making these adjustments correctly will give you square cuts and accurate dimensions across the width of your boards. 1. Using the power feed switch, move the saw carriage so that the blade is positioned over the front bed rail.
  • Page 119 SAWMILL ALIGNMENT Adjusting The Lower Track Rollers blade is 400 mm above the outside of the bed rail support by actual measurement with a tape or ruler. See Figure 6-10. 400 ± 1 mm from blade 400mm from blade FIG. 6-10 7.
  • Page 120 SAWMILL ALIGNMENT Adjusting The Lower Track Rollers properly adjust the stop screw can cause cutting head damage, especially during mill transportation. See Figure 6-11. Stop Screw Stop Screw FIG. 6-11 6-12 doc063022 SAWMILL ALIGNMENT...

  • Page 121: Adjusting Bed Rails To The Blade

    SAWMILL ALIGNMENT Adjusting Bed Rails To The Blade Adjusting Bed Rails To The Blade 1. Move the cutting head so the blade is positioned over the center of the front main bed rail. 2. Measure the distance between the bottom of the blade and the bed rail at each end of the bed rail.

  • Page 122: Blade Guide Arm Vertical Adjustment

    SAWMILL ALIGNMENT Blade Guide Arm Vertical Adjustment Blade Guide Arm Vertical Adjustment 1. Move the cutting head so that the blade guide arm is directly over a bed rail. 2. Adjust the blade guide arm out to within 1/2" (15 mm) of full open. 3.

  • Page 123: Blade Guide Arm Feed Chain Adjustment

    SAWMILL ALIGNMENT Blade Guide Arm Feed Chain Adjustment 7. The blade guide arm should be snug, but not too tight, in the rollers. You should be able to move it in and out with firm hand pressure. There should be no side-to-side play. Blade Guide Arm Feed Chain Adjustment 1.
  • Page 124 SAWMILL ALIGNMENT Blade Guide Arm Feed Chain Adjustment See Figure 6-14. Loosen the two set screws. Move the bracket with motor down to tighten the chain, move it up to loosen. Next tighten the set screws. Set Screws 20_123_D 090586 FIG.

  • Page 125: Saw Head Backlash Removal

    SAWMILL ALIGNMENT Saw Head Backlash Removal Saw Head Backlash Removal Check the saw head for backlash every 200 hours of operation. If necessary, remove the backlash. See Figure 6-15. To check if the backlash is present, grasp the outside part of the saw head and move it as shown in the figure below.
  • Page 126 SAWMILL ALIGNMENT Saw Head Backlash Removal 2. Tighten the two adjustment bolts evenly to remove the backlash. Set screws Set Screws Nuts Nuts Adjustment Bolts Adjustment Bolts FIG. 6-15 0,1 mm Set screw Set Screw Adjustment Adjustment Bolt Bolt FIG. 6-15 3.

  • Page 127: Blade Guide Arm Horizontal Adjustment

    SAWMILL ALIGNMENT Blade Guide Arm Horizontal Adjustment 6.10 Blade Guide Arm Horizontal Adjustment 1. Put the blade guide assembly back in the arm (if you took it out). Put the assembly back so that the flanged collar on the roller is about 3.0 mm (0.04") from the back of the blade when the arm is 15 mm (0.6") from full open.
  • Page 128 SAWMILL ALIGNMENT Blade Guide Arm Horizontal Adjustment See Figure 6-17. Adjustment Nuts Adjustment Nuts Adjustment Nuts Adjustment Nuts SM0066 FIG. 6-17 4. Adjusting the outside two rollers (furthest from the arm motor) inward will cause the flange to move away from the blade. 5.

  • Page 129: Aligning The Blade Guides

    Aligning the Blade Guides 6.11 Aligning the Blade Guides Each Wood-Mizer sawmill has two blade guide assemblies that help the blade maintain a straight cut. The two blade guide assemblies are positioned on the cutting head to guide the blade on each side of the material being cut.

  • Page 130: Blade Deflection

    SAWMILL ALIGNMENT Blade Deflection 6.12 Blade Deflection Perform the following steps to achieve proper blade deflection with the blade guides. 1. Raise the carriage until the blade is 375 mm (15") above a bed rail. Measure the actual distance with a tape from the top of the rail to the bottom of the blade. 2.

  • Page 131: Blade Guide Vertical Tilt Adjustment

    SAWMILL ALIGNMENT Blade Guide Vertical Tilt Adjustment 6.13 Blade Guide Vertical Tilt Adjustment Check that the blade guide does not tilt the blade up or down. A Blade Guide Alignment Tool (BGAT) is provided to help you measure the vertical tilt of the blade. 1.
  • Page 132 SAWMILL ALIGNMENT Blade Guide Vertical Tilt Adjustment See Figure 6-20. Loosen jam nuts and turn screws Loosen jam nuts and turn screws to tilt roller up or down to tilt roller up or down SM0070 FIG. 6-20 8. Move the carriage forward so the back end of the tool is over the bed rail. 9.

  • Page 133: Blade Guide Spacing

    SAWMILL ALIGNMENT Blade Guide Spacing 6.14 Blade Guide Spacing HINT: When adjusting blade guide spacing, loosen the top set screw and one side set screw only. This will ensure horizontal and vertical tilt adjustments are maintained when the set screws are retightened. 1.

  • Page 134: Horizontal Tilt Adjustment

    SAWMILL ALIGNMENT Horizontal Tilt Adjustment 6.15 Horizontal Tilt Adjustment 1. Finally, both blade guides must be tilted horizontally. Adjust the blade guide arm halfway See Figure 6-22. Turn side set screws to adjust horizontal tilt FIG. 6-22 2. Place the Blade Guide Alignment Tool against the face of the outer blade guide roller. 3.

  • Page 135: Horizontal Adjustment Of Side Supports

    SAWMILL ALIGNMENT Horizontal Adjustment of Side Supports 6.16 Horizontal Adjustment of Side Supports Logs and boards are clamped against the side supports when sawing. The sides supports must be square to the bed to ensure square lumber. 1. Swing the side support down. 2.

  • Page 136: Vertical Adjustment Of Side Supports

    SAWMILL ALIGNMENT Vertical Adjustment of Side Supports 6.17 Vertical Adjustment of Side Supports 1. Place a flat board across the bed rails. 2. Swing a side support up so that it is vertical. 3. Pull back at the top of the support to eliminate slack as if a log were being clamped against it.

  • Page 137: Saw Head Tilt

    SAWMILL ALIGNMENT Saw Head Tilt 6.18 Saw Head Tilt As the blade enters a wide log or cant, the outside of the saw head will drop down slightly. To compensate for the drop, use the lower track roller horizontal nuts to raise the outside of the saw head 1.5 mm (0.06").
  • Page 138 SAWMILL ALIGNMENT Saw Head Tilt See Figure 6-26. Blade Blade 375 mm + 1 mm 375 mm Bed Rail Bed Rail Sm0064-1b FIG. 6-26 6-30 doc063022 SAWMILL ALIGNMENT...

  • Page 139: Blade Height Scale Adjustment

    SAWMILL ALIGNMENT Blade Height Scale Adjustment 6.19 Blade Height Scale Adjustment After the entire sawmill has been aligned and all adjustments made, check that the blade height scale indicates the true distance from the blade to the bed rails. 1. Move the saw head so the blade is positioned directly above one of the bed rails. Measure from the bottom edge on a down-set tooth of the blade to the top of the bed rail (or stainless steel sleeve if applicable).

  • Page 140: Motor Brake

    Motor Brake Motor Brake Maintenance SECTION 7 MOTOR BRAKE Motor Brake Maintenance Maintenance intervals Service brakes after 4000 hours of operation at the  latest or every six months TABLE 7-1. IMPORTANT! Brakes with defective armature plates, cheese head screws, springs or flanges must be replaced completely. Please observe the following for inspections and maintenance operations: Remove impurities through oil and grease using brake cleaning agents, if necessary, replace brake ...
  • Page 141 Motor Brake Motor Brake Maintenance If necessary, adjust the air gap to "s ".  Lürated Brake type sLürated sLümax Max. Rotor thickness Excess of the +0.1mm Service adjustment adjuster nut max. min. -0.05mm brake permissible wear [mm] [mm] Emax. [mm] INTORQ BFK458-25 0,4 mm...
  • Page 142 EC declaration of conformity according to EC Machinery Directive 2006/42/EC, Annex II, 1.A Manufacturer: Wood-Mizer Industries sp. z o.o. Nagórna 114, 62- Tel. +48 63 26 26 000 This declaration of conformity is issued under the sole responsibility of the manufacturer.

This manual is also suitable for:

Lt20 b1-4 d22 smhLt20 b1-4 g25 smh

Table of Contents