Wood-mizer LT40 Series User Manual
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Wood-mizer LT40 Series User Manual

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Summary of Contents for Wood-mizer LT40 Series

  • Page 3 Wood-Mizer ® Safety, Setup, Operation & Maintenance Manual LT40 Series DH rev. F1.00 Safety is our #1 concern! Read and understand all safety information and instructions before oper- ating, setting up or maintaining this machine. Form #604 This is the original language...
  • Page 4 Sawmill and Customer Identification Each Wood-Mizer sawmill has a 17-digit Vehicle Identification Number (VIN). See the fig- ure below for VIN locations. See the chart for VIN description. HD0133 V.I.N. LOCATIONS. F9 017 F9 .01 V.I.N. DESCRIPTION HDdoc012020...
  • Page 5 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. LT40DH 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 6: Table Of Contents

    LT40 Series DH - Hydraulic Schematic..........1-26 1.17 LT40 Series DH5 Hydraulic Schematic ..........1-28 1.18 LT40 Series DH7 Hydraulic Schematic ..........1-30 1.19 LT40 Series DH - Hydraulic Components ...........1-32 1.20 LT40 Series DH - Hydraulic Hoses............1-33 SECTION 2 SETUP & OPERATION Sawmill Setup..................2-1 Stationary Sawmill Setup ...............2-4...
  • Page 7 Table of Contents Section-Page SECTION 3 MAINTENANCE Wear Life....................3-1 Blade Guides ..................3-2 Sawdust Removal ...................3-3 Carriage Track, Wiper & Scrapers ............3-3 Vertical Mast Rails .................3-4 Drum Switches ..................3-4 Miscellaneous ..................3-5 Blade Tensioner..................3-5 Blade Wheel Belts ..................3-6 3.10 Brake Strap Adjustment .................3-7 3.11 Drive Belt Adjustment................3-8 3.12...
  • Page 8 Table of Contents Section-Page 5.11 Blade Guide Vertical Tilt Adjustment..........5-18 5.12 Blade Guide Spacing ................5-20 5.13 Horizontal Tilt Adjustment..............5-21 5.14 Blade Guide Block Adjustment............5-22 5.15 Horizontal Adjustment of Side Supports..........5-23 5.16 Vertical Adjustment of Side Supports..........5-24 5.17 Clamp Stop/Stop Bolt Adjustment ............5-25 5.18 Saw Head Tilt ..................5-26 5.19...

  • Page 9: 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 10: Blade Handling

    Safety & General Information Blade Handling 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 11: Sawmill Setup

    Safety & General Information Sawmill Setup Sawmill Setup WARNING! Chock the trailer wheels to prevent movement before unhitching it from the towing vehicle. Failure to do so may result in serious injury or death. WARNING! Failure to put front outrigger down before moving cutting head from the rest position may result in serious injury.
  • Page 12 Safety & General Information Sawmill Operation DANGER! Maintain a clean and clear path for all necessary movement around the mill and lumber stacking areas. Failure to do so will result in seri- ous injury. DANGER! Always be sure the blade is disengaged and all persons are out of the path of the blade before starting the engine or motor.

  • Page 13: Sawmill Maintenance

    Safety & General Information Sawmill Maintenance CAUTION! Do not try to force the saw head beyond its upper and lower travel limits. Damage to the up/down system may result. CAUTION! Always make sure the up/down switch moves to the neutral or off position when released to ensure that the saw head stops moving.

  • Page 14: Safety Instructions

    Safety & General Information Safety Instructions Eye and skin irritant. If introduced into eyes, flush with water for at least 15 minutes. If film or irritation persists, seek medical attention. Wash skin with soap and water. If ingested, do not induce vomiting - contact a physician. KEEP OUT OF THE REACH OF CHILDREN.
  • Page 15 It is always the owner's responsibility to comply with all applicable federal, state and local laws, rules and regulations regard- ing 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 16 Safety & General Information Wear Safety Clothing Wear Safety Clothing WARNING! Secure all loose clothing and jewelry before operating the sawmill. Failure to do so may result in serious injury or death. WARNING! Always wear gloves and eye protection when handling bandsaw blades.
  • Page 17 Safety & General Information Keep Persons Away Keep Persons Away DANGER! Keep all persons out of the path of moving equipment and lumber when operating the sawmill. Failure to do so will result in seri- ous injury. DANGER! Always be sure all persons are out of the path of the blade before starting the motor.
  • Page 18 Safety & General Information Use Proper Maintenance Procedures WARNING! Use extreme caution when spinning the blade wheels by hand. Make sure hands are clear of blade and wheel spokes before spinning. Failure to do so may result in serious injury. Use Proper Maintenance Procedures DANGER! Make sure all electrical installation, service and/or mainte-...
  • Page 19 Safety & General Information Keep Safety Labels In Good Condition the blades. CAUTION! Always wear gloves when handling the blade. Never grab the blade with bare hands! CAUTION! If the blade breaks during sawmill operation, push the EMERGENCY STOP button to stop the blade motor and wait 10 sec- onds before you open the blade housing cover.
  • Page 20 Safety & General Information Keep Safety Labels In Good Condition See Table 1-1. Pictogram decals used to warn and inform the user about danger in the LT40. TABLE 1-1 Decal View W-M No. Description 096317 CAUTION! Read thoroughly the manual before operating the machine.
  • Page 21 Safety & General Information Keep Safety Labels In Good Condition TABLE 1-1 099223 Blade tension - See manual. 099223 099221 CAUTION! Keep all persons a safe distance away from work area when operating the machine. 099221 098176 CAUTION! Keep away from debarker blade! 098176 099222...
  • Page 22 Safety & General Information Keep Safety Labels In Good Condition TABLE 1-1 099542 CAUTION! Trailer. 099542 086099 CAUTION! Keep away - hot parts! 086099 096321 Blade movement direction 512235 Clean the chain of sawdust every 50 hours of operation or once a week 512235 512157 Lubricate the chain every 50 hours of...
  • Page 23 Safety & General Information Keep Safety Labels In Good Condition TABLE 1-1 S12005G CAUTION! Always wear protective ear muffs when operating the sawmill! 501465 CAUTION! Always wear safety boots when operating the sawmill 501467 Lubrication Point P11789 Aligning the blade on the wheels P85070 CE safety certification Safety &...
  • Page 24 Safety & General Information Keep Safety Labels In Good Condition TABLE 1-1 099401 Russian safety certification 099401 S20097B 3300 RPM - Motor rotation direction 3300 RPM S20097B 1-16 HDdoc012020 Safety & General Information...

  • Page 25: Belt Sizes

    Browning belts only. Blade Sizes See Table 1-3. 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 26: Cutting Capacity

    Safety & General Information Cutting Capacity Cutting Capacity See Table 1-4. The log size capacities of the LT40 Series DH sawmills are listed below. Max. Max. Length Diameter LT40 S DH 36" (91.5 cm) 15' 7" (4.8 m) LT40 M DH 36"...

  • Page 27: Engine/Motor Specifications

    Safety & General Information Engine/Motor Specifications Engine/Motor Specifications See Table 1-6. The power options available for the LT40 Series DH sawmills are listed below. Manufacturer Model No. Power Other Specifications Engine/Motor Type 28HP Gasoline Kohler CH745 28KM 3600 RPM, 725 cm...
  • Page 28 Safety & General Information Dust Extractor Specifications See Table 1-9. 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 Sack capacity 0,25 m...

  • Page 29: Overall Dimensions

    Safety & General Information Overall Dimensions 1.12 Overall Dimensions See Table 1-10. The overall dimensions of the Wood-Mizer sawmills are listed below. Model With Weight Length Width Height Weight (Operating Position w/Trailer with Loading Arms) LT40 S DH 21’ 11"...

  • Page 30: Chains

    Safety & General Information Chains See Figure 1-2. The LT40 S dimensions is shown below. FIG. 1-2 1.13 Chains See Table 1-11. The load capacity of the chains is listed below. Load Capacity According to ISO Nr 08A-1 Power Feed Chain 1780N Up/Down Chain 1780N...

  • Page 31: Components

    Safety & General Information Components 1.15 Components The major components of the Wood-Mizer LT40 Series DH are shown below. Engine Drive Assembly HD0058 Clutch/Brake Blade Tensioner Handle Outer Blade Guide Arm Control Hydraulic Hydraulic Toe Board Log Clamp Hydraulic Log Turner...
  • Page 32 Safety & General Information Components LT40 Series DH Hydraulic Schematic (G28&D33 Engines only) See Figure 1-3. RELIEF VALVE SETTING 2000 PSI LOADER CLAMP CLAMP TOEBOARD TOEBOARD TURNER IN/OUT UP/DOWN FRONT REAR RELIEF VALVE SETTING 2250 PSI HD0138 FIG. 1-3 HYDRAULIC SCHEMATIC.
  • Page 33 Safety & General Information Components See Figure 1-4. Log Loader Clamp Clamp Turner In/Out Up/Down Side Supports Front Rear Toe Board Toe Board (Shown with handles down) HD0137 FIG. 1-4 HYDRAULIC LAYOUT DIAGRAM. Clamp In/Out,  Clamp Up/Down,  Turner, ...

  • Page 34: Lt40 Series Dh - Hydraulic Schematic

    Safety & General Information LT40 Series DH - Hydraulic Schematic 1.16 LT40 Series DH - Hydraulic Schematic See Figure 1-5. RELIEF VALVE SETTING 2000 PSI LOADER CLAMP CLAMP TOEBOARD TOEBOARD TURNER IN/OUT UP/DOWN REAR FRONT RELIEF VALVE SETTING 2250 PSI HD0139C FIG.
  • Page 35 Safety & General Information LT40 Series DH - Hydraulic Schematic See Figure 1-6. Log Loader Clamp Clamp Turner In/Out Up/Down Side Supports Front Rear Toe Board Toe Board (Shown with handles down) HD0136B Crossflow Hose (3/8") FIG. 1-6 HYDRAULIC LAYOUT DIAGRAM.

  • Page 36: Lt40 Series Dh5 Hydraulic Schematic

    Safety & General Information LT40 Series DH5 Hydraulic Schematic 1.17 LT40 Series DH5 Hydraulic Schematic See Figure 1-7. FIG. 1-7 1-28 HDdoc012020 Safety & General Information...
  • Page 37 Safety & General Information LT40 Series DH5 Hydraulic Schematic Relief valve setting 2000/2250 PSI,  Clamp In/Out,  Clamp Up/Down,  Turner,  Side Support,  Toe Board,  Toe Board Front,  Toe Board Rear,  Loader Arm, ...

  • Page 38: Lt40 Series Dh7 Hydraulic Schematic

    Safety & General Information LT40 Series DH7 Hydraulic Schematic 1.18 LT40 Series DH7 Hydraulic Schematic See Figure 1-8. FIG. 1-8 1-30 HDdoc012020 Safety & General Information...
  • Page 39 Safety & General Information LT40 Series DH7 Hydraulic Schematic Relief valve setting 2000/2250 PSI,  Clamp In/Out,  Clamp Up/Down,  Turner,  Side Support,  Toe Board,  Toe Board Front,  Toe Board Rear,  Loader Arm, ...

  • Page 40: Lt40 Series Dh - Hydraulic Components

    Safety & General Information LT40 Series DH - Hydraulic Components 1.19 LT40 Series DH - Hydraulic Components See Table 1-13. Mfg. Part No. Wood-Mizer Description Part # CJ-S96-16-70/ 088589 Hyd Cylinder, 70mm Bore X 178mm 32/178 Stroke CJ-S169-16-4 088590 Hyd Cylinder, 40mm Bore X 254mm...

  • Page 41: Lt40 Series Dh - Hydraulic Hoses

    Safety & General Information LT40 Series DH - Hydraulic Hoses 1.20 LT40 Series DH - Hydraulic Hoses See Table 1-14. Color LENGTH Application Wood-Mizer Code "A" Part No. None 18" 1/4” Hydraulic Pump To Valve 015704 None 18" 1/4” Hydraulic Pump To Valve...
  • Page 42 Safety & General Information LT40 Series DH - Hydraulic Hoses Yellow 1.6m 3/8” Loading Arm Branch Base 014798 (63") Yellow 1.8m 3/8” Loading Arm Branch Base 093329 (71") Blue 4.34m 3/8” Loading Arm Cylinder Top (LT40S) 087795 (171") 4.9m 3/8” Loading Arm Cylinder Top (LT40M) 087781 (193")
  • Page 43 Safety & General Information LT40 Series DH - Hydraulic Hoses WHITE 2,50 1/4" FIRST/SECOND CLAMP, IN/OUT CYLINDER TOP (AH7) 095216 ORANGE 1,20 1/4" FIRST/SECOND CLAMP, IN/OUT CYLINDER BOTTOM 095217 (AH7) WHITE 1,20 1/4" FIRST/SECOND CLAMP, IN/OUT CYLINDER TOP (AH7) 095217 TABLE 1-14 Safety &...

  • Page 44: Setup & Operation

    Setup & Operation Sawmill Setup SECTION 2 SETUP & OPERATION Sawmill Setup IMPORTANT! Before starting to use the sawmill you have to meet the following conditions: Set up the sawmill on firm, level ground and level the sawmill. Secure the sawmill to the ...
  • Page 45 Setup & Operation Sawmill Setup The sawmill operator’s position is shown below.  CAUTION! Press the emergency button located on the control box to stop the blade and the track feed motor. Turn the emergency stop clockwise to release the stop. The sawmill not restart until the emergency stop is not released.
  • Page 46 Setup & Operation Sawmill Setup Tie the belts in the places shown on the picture below. The sawmill can be lifted using a forklift,  a winch or a crane. The belts and the lifting equipment must be rated for at least 3000kg (6600 lb).

  • Page 47: Stationary Sawmill Setup

    Setup & Operation Stationary Sawmill Setup Stationary Sawmill Setup Set up the mill on firm footing and level by eye. Fasten the mill to the floor to prevent any creep after prolonged use. A cement pad with 5/8” diameter anchor bolts is recommended. The cement pad should be rated to sup- port 31 T/m at each sawmill foot position.
  • Page 48 Setup & Operation Stationary Sawmill Setup See Figure 2-2. FIG. 2-2 HDdoc012020 Setup & Operation...
  • Page 49 Setup & Operation Stationary Sawmill Setup See Figure 2-3. 3830 2040 2790 LT40S Stationary Metric Dimensions* LT40S Stationary Metric Dimensions* LT20 S Stationary Metric Dimensions* 1453 1592.8 1742.6 1500.9 2082.4 20_108D LT40M Stationary Metric Dimensions* LT40M Stationary Metric Dimensions* LT20 M Stationary Metric Dimensions* *All dimensions in millimetres *All dimensions in millimetres FIG.
  • Page 50 Setup & Operation Stationary Sawmill Setup See Figure 2-5. LT M FIG. 2-5 See Figure 2-6. LT M Super FIG. 2-6 1. Unhook the carriage safety chain, located at the bottom of the vertical mast, near the battery box. 2. Turn the key switch on the control panel to the accessory (#3) position to enable the battery-operated accesso- ries.

  • Page 51: Portable Sawmill Setup

    Setup & Operation Portable Sawmill Setup See Figure 2-7. Pivot End Rail Pivot End Rail Side Support Side Support Bed Rail Bed Rail Stop Block Stop Block SM0130 FIG. 2-7 Portable Sawmill Setup WARNING! Do not set up the mill on ground with more than a 10 degree incline.
  • Page 52 Setup & Operation Portable Sawmill Setup See Figure 2-8. Adjustment Bolt Locking Pin Travel Lock Pin Outrigger Leg FIG. 2-8. OUTRIGGER ADJUSTMENT. CAUTION! If setup sawmill on a boggy terrain (such as deep mud or sand) place the board or metal plate under each outrigger leg to prevent it from sink- ing.
  • Page 53 Setup & Operation Portable Sawmill Setup 4. Unhook the carriage safety chain, located at the bottom of the vertical mast near the battery box. 5. Turn the key switch on the control panel to the accessory (#3) position to enable the battery-operated accesso- ries.

  • Page 54: 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 preventives. 2. Unbolt and remove the middle track cover from its storage position. 3.

  • Page 55: Replacing The Blade

    Setup & Operation Replacing The Blade Replacing The Blade 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 56: Tracking The Blade

    Setup & Operation Tracking The Blade See Table 2-1. The recommended tension for different blades is shown below. Blade Type Acceptable Range Ideal Tension B375IH929 12,4 - 14,5 MPa (1800 - 2100 psi) 13,8 MPa (2000 psi) B275IH1030 14,5 - 16,5 MPa (2100 - 2400 psi) 15,9 MPa (2300 psi) B275IH741030 14,5 - 16,5 MPa (2100 - 2400 psi)

  • Page 57: Starting The Engine (Or Motor)

    Setup & Operation Starting The Engine (or Motor) See Figure 2-12. Position 1 1/4” wide blades so the gullet is 3.0 mm (0.12”) out from the edge of the blade wheel (± 1.0 mm [0.04”]). Position 1 1/2” blades so the gullet is 4.5 mm (0.18”) out from the edge of the blade wheel (±...
  • Page 58 Setup & Operation Starting The Engine (or Motor) will result in serious injury. WARNING! Always wear eye, ear, respiration, and foot protection when operating the sawmill. Failure to do so may result in serious injury. WARNING! Be sure the power feed switch is in the neutral position before turning the key switch to the on (#1) or accessory (#3) position.

  • Page 59: Board Return

    Setup & Operation Board Return Board Return WARNING! The automatic board return is intended to assist a second operator in removing boards quickly. Do not use the board return when operating the sawmill alone. Serious injury, death or damage to the equipment may result.
  • Page 60 Setup & Operation Board Return See Figure 2-14. 3H0363 FIG. 2-14 When the blade reaches the end of the log, the arm will drop down to catch the board and drag it back toward the operator as the saw head is returned. DANGER! Keep all persons out of the path of returning boards.

  • Page 61: Hydraulic Control Operation

    Setup & Operation Hydraulic Control Operation 2.10 Hydraulic Control Operation The hydraulic control levers become operational when the contacts at the bottom of the carriage touch the power strip on the frame tube. The hydraulic control levers will only work when the cutting head is close enough to the front end of the mill to touch the power strip.
  • Page 62 Setup & Operation Hydraulic Control Operation See Figure 2-16. Clamping cants on sawmills equipped with DH5 hydraulic system Rear Front Rear Front Clamp Clamp Clamp Clamp A/DH3 Up/Down Up/Down Up/Down Up/Down Rear Front Front Rear Clamp HD0185 Clamp Clamp Clamp In/Out In/Out In/Out...
  • Page 63 Setup & Operation Hydraulic Control Operation CAUTION! Always make sure the engine is running before operating the hydraulic controls. Operating the controls without the engine running will result in power drainage from the battery. Holding the hydraulic switches half- way up or down also will cause excessive drainage from the battery. 1.

  • Page 64: Loading, Turning, And Clamping Logs

    Setup & Operation Loading, Turning, and Clamping Logs 2.11 Loading, Turning, and Clamping Logs CAUTION! Be sure the pivot rails, turning arm, clamp, and toe boards are below bed level before loading a log onto the bed. Failure to do so may result in machine damage or cause misalignment.
  • Page 65 Setup & Operation Loading, Turning, and Clamping Logs To Turn Logs (Optional Procedure For Hydraulic Mills Except Only) If you are turning a small cant on a Super Series mill, you may opt to use the clamp to turn the cant. 1.

  • Page 66: Up/Down Operation

    Setup & Operation Up/Down Operation 2.12 Up/Down Operation 1. Install a blade, if needed, and check for correct blade tension. (See Section 2.6). 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 2-18.

  • Page 67: Blade Guide Arm Operation

    Setup & Operation Blade Guide Arm Operation 2.13 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 1" (25.4 mm). 2.

  • Page 68: Clutch/Brake Operation

    Setup & Operation Clutch/Brake Operation 2.14 Clutch/Brake Operation 1. Clear any loose objects from the area of the blade, motor, and drive belt. 2. Make sure the clamp and side supports are adjusted below the level of your first few cuts. 3.

  • Page 69: Power Feed Operation

    Setup & Operation Power Feed Operation 4. To engage the blade, pull the lever down until it locks in the down position. This engages the drive mechanism, releases the blade brake, and increases the engine speed to full throttle. To disengage the blade, raise the clutch/brake lever to the up position. This disengages the drive belt, engages the blade brake, and returns the engine to idle.
  • Page 70 Setup & Operation Power Feed Operation accidental carriage movement. which may cause serious injury or death. Using The Power Feed HINT: To get a straight cut in the first part of the board, feed the blade into the log at a slow speed. This stops the blade from flexing and dipping up or down.

  • Page 71: Cutting The Log

    Cutting The Log 2.16 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, turn the key switch to the accessory (#3) position.

  • Page 72: Edging

    1 1/16 - 1 1/8" (27-28.6 mm) for each board. 2.17 Edging The following steps guide you through edging boards on the Wood-Mizer sawmill. 1. Raise the side supports to 1/2 the height of the flitches, or the boards that need to be edged.
  • Page 73 Setup & Operation Blade Height Scale Blade Height Blade Height Quarter Quarter Indicator Indicator Scale Scale Inch Inch Scale Scale 3H0007B FIG. 2-22 The scales are attached to the frame and move up and down with the carriage head. The blade indicator, used to read the inch and quarter scales, remains stationary.
  • Page 74 Setup & Operation Blade Height Scale check with your customer before you saw to determine what actual finished thickness is required. Standard Quarter Scale Grade Hardwood Quarter Scale Scale Actual Board Thickness Scale Actual Board Thickness 1" (25 mm) 1 1/8" (29 mm) 1 1/4"...

  • Page 75: Water Lube Operation

    Setup & Operation Water Lube Operation 2.19 Water Lube Operation See Figure 2-23. 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 76: Preparing The Sawmill For Towing

    Setup & Operation Preparing The Sawmill For Towing 2.20 Preparing The Sawmill For Towing The Wood-Mizer trailer package makes transporting your sawmill easy and convenient. To get your sawmill ready for towing, follow these instructions. CAUTION! If the weight of the sawmill exceeds 3,000 lbs (1361 Kg) for any reason, an auxiliary braking system (such as electric brakes) must be used.
  • Page 77 Setup & Operation Preparing The Sawmill For Towing can cause saw head damage, especially during mill transportation. 9. If necessary, adjust the two stops located at the bottom of the mast so the saw head contacts them after it is lowered 3/4"...
  • Page 78 Setup & Operation Preparing The Sawmill For Towing 13. Place both fenders in the slots located behind the trailer tires and secure with retaining pins. Raise all but the very front outrigger. See the trailer operator’s manual for specific information regarding hitch operation and towing the sawmill. 2-35 HDdoc012020 Setup &...

  • Page 79: Maintenance

    Maintenance Wear Life SECTION 3 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 25 hours.The Maintenance Log lists procedures that need to be performed every 50, 100, 200, 300, 500, or 1000 hours.

  • Page 80: 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 LT40 Series DH Parts manual for blade guide rebuild kits and complete roller assemblies. Steel Blade Guide Blocks 2.

  • Page 81: Sawdust Removal

    Maintenance Sawdust Removal See Figure 3-2. 4. Make sure the blade screw in the top center of the C-frame is 1/16" (1.5 mm) below the bottom of the blade. If not, loosen the nut and adjust the screw as necessary. Check the screw every blade change. Failing to main- tain this adjustment will lead to early blade breakage.

  • Page 82: Vertical Mast Rails

    Lubricate the up/down and power feed drum switch contacts inside the control panel every fifty hours of opera- tion. Use only contact grease supplied by Wood-Mizer. Remove the control panel cover. Use a cotton swab to apply grease to the switch contact ends.

  • Page 83: Miscellaneous

    Maintenance Miscellaneous Miscellaneous 1. Apply a thin film of a NLGI No. 2 grade lithium grease to the blade guide arm every fifty hours of operation to help prevent it from rusting. 2. Grease the clamp mechanism, loading arm, and side supports with a NLGI No. 2 grade lithium grease every fifty hours of operation.

  • Page 84: Blade Wheel Belts

    Maintenance Blade Wheel Belts To add enough fluid to completely fill the tensioner block: Remove the tensioner handle and ball. Remove the sawmill blade housing covers, blade and  idle-side blade wheel. Push the idle-side shaft housing all the way in to collapse the rear tensioner piston and fully ...

  • Page 85: Brake Strap Adjustment

    Maintenance Brake Strap Adjustment 3.10 Brake Strap Adjustment Check the brake strap for wear every 200 hours of operation. Replace if damaged or worn. Also check and adjust the brake strap if the blade does not stop quickly, unusual sounds occur when the brake is applied, or a sudden change is noticed in the clutch handle position when the clutch is disengaged.

  • Page 86: Drive Belt Adjustment

    Maintenance Drive Belt Adjustment 3.11 Drive Belt Adjustment WARNING! Do not for any reason adjust the engine drive belts or belt sup- port bracket with the engine running. Doing so may result in serious injury. See Table 3-2. Check the drive belt tension after the first 20 hours, and every 50 hours thereafter. See the table below for drive belt tension specifications for your model sawmill.
  • Page 87 Maintenance Drive Belt Adjustment See Figure 3-8. Hold top portion Hold top portion with wrench with wrench Turn bottom jam Turn bottom jam nut nut clockwise to clockwise to tighten belt tighten belt 3H0505-3 FIG. 3-8 4. After tensioning the drive belt, check throttle cable tension and adjust if necessary. The throttle cable should be tensioned just enough so that the engine revs as soon as the clutch/brake handle is engaged.
  • Page 88 Maintenance Drive Belt Adjustment Adjust the drive belt support as needed. The drive belt support is designed to extend belt life. The bracket should be adjusted to NOT touch the drive belt when the clutch handle is engaged (down position), AND to hold the drive belt away from the engine pulley when the clutch handle is disengaged (up position).

  • Page 89: Clutch Handle Adjustment

    Maintenance Clutch Handle Adjustment 3.12 Clutch Handle Adjustment After the drive belts and brake strap are properly adjusted, the clutch handle should lock in the down position when the drive belts are engaged. If the clutch handle does not stay locked, adjust the handle turnbuckle. Section 3.13 for optional Autoclutch adjustment.

  • Page 90: Autoclutch Option Adjustment

    Maintenance Autoclutch Option Adjustment 3.13 Autoclutch Option Adjustment If your sawmill is equipped with the Autoclutch option, check the clutch linkage after every drive belt or brake strap adjustment. 1. Remove the blade from the sawmill. 2. Remove the inside belt guard and push the Autoclutch switch up to engage the drive belts. 3.

  • Page 91: Hydraulic System

    Maintenance Hydraulic System 3.14 Hydraulic System 1. Check the hydraulic fluid level every fifty hours of operation. Add fluid as necessary. The level in the hydraulic pump should be 3/4" (19mm) from the top with all cylinders collapsed. If humidity is a problem or the mill is used outside in humid weather, drain and replace two quarts (.95 liters) of fluid every six months.

  • Page 92: Drive Bearing

    Maintenance Drive Bearing 3.15 Drive Bearing Refill the fluid in the drive-side cylinder bearing housing every 500 hours of operation. Remove the top and bot- tom oil plugs. Pour an Automatic Transmission Fluid (ATF) such as UNIVIS J26 or Dexron III ATF into the top hole until it begins to flow from the bottom hole.

  • Page 93: Up/Down System

    Maintenance Up/Down System 3.16 Up/Down System 1. Grease the up/down gear reducer shaft bearing with a NLGI No. 2 grade lithium grease every 1000 hours of 1000 operation. See Figure 3-14. Up/Down Gear Reducer Up/Down Gear Reducer Shaft Bearing Shaft Bearing 3H0016B FIG.
  • Page 94 Maintenance Up/Down System 3. Adjust the up/down chain tension as needed. Measure chain tension with the head all the way to the top of the vertical mast. Secure the carriage with a chain at the top, or shim it underneath. Find the chain adjusting bolt at the bottom of the mast, behind the battery box.

  • Page 95: Power Feed

    Maintenance Power Feed 3.17 Power Feed 1. Adjust the power feed belt as needed. When the power feed belt gets loose, it will begin slipping. This causes the carriage to not move forward when cutting. To retighten the belt: See Figure 3-16. Remove the four cover bolts and belt cover and measure the belt tension. The belt should be tightened so there is 1/8"...
  • Page 96 Maintenance Power Feed See Figure 3-17. 3H0018B Feed Chain Feed Chain Adjustment Nuts Adjustment Nuts FIG. 3-17 3-18 HDdoc012020 Maintenance...

  • Page 97: Safety Devices Inspection

    Maintenance Safety Devices Inspection 3.18 Safety Devices Inspection LT40 DC – Safety devices inspection Safety devices on the LT20DC 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 98 Maintenance Safety Devices Inspection 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 3. Blade cover safety switches and its circuits inspection. Start the engine;  Turn the tensioner handle to engage the blade;  Open left blade housing cover;  Engine should be stopped;  Try to start the engine. The engine should remain stopped; ...
  • Page 100 LT40 S/M DH Short Interval Maintenance Schedule (Check engine and option manuals for additional maintenance procedures) PROCEDURE MANUAL REFERENCE EVERY BLADE CHANGE Check Blade Guide Roller Performance See Section 3.2 Remove Excess Sawdust From Blade Wheel Housings And Sawdust Chute See Section 3.2 Check Blade Screw See Section 3.2...
  • Page 101 WOOD-MIZER LT40 S/M DH MAINTENANCE LOG (Check Engine And Option Manuals For Additional Maintenance Procedures) PROCEDURE MANUAL TOTAL HOURS OF OPERATION REFERENCE FILL IN THE DATE AND THE MACHINE HOURS AS YOU PERFORM EACH PROCEDURE. A SHADED BOX INDICATES MAINTENANCE IS NOT NEEDED AT THIS TIME.
  • Page 102 WOOD-MIZER LT40 S/M DH MAINTENANCE LOG (Check Engine And Option Manuals For Additional Maintenance Procedures) PROCEDURE MANUAL TOTAL HOURS OF OPERATION REFERENCE FILL IN THE DATE AND THE MACHINE HOURS AS YOU PERFORM EACH PROCEDURE. A SHADED BOX INDICATES MAINTENANCE IS NOT NEEDED AT THIS TIME.
  • Page 103 WOOD-MIZER LT40 S/M DH MAINTENANCE LOG (Check Engine And Option Manuals For Additional Maintenance Procedures) PROCEDURE MANUAL TOTAL HOURS OF OPERATION REFERENCE FILL IN THE DATE AND THE MACHINE HOURS AS YOU PERFORM EACH PROCEDURE. A SHADED BOX INDICATES MAINTENANCE IS NOT NEEDED AT THIS TIME.
  • Page 104 WOOD-MIZER LT40 S/M DH MAINTENANCE LOG (Check Engine And Option Manuals For Additional Maintenance Procedures) PROCEDURE MANUAL TOTAL HOURS OF OPERATION REFERENCE FILL IN THE DATE AND THE MACHINE HOURS AS YOU PERFORM EACH PROCEDURE. A SHADED BOX INDICATES MAINTENANCE IS NOT NEEDED AT THIS TIME.
  • Page 105 WOOD-MIZER LT40 S/M DH MAINTENANCE LOG (Check Engine And Option Manuals For Additional Maintenance Procedures) PROCEDURE MANUAL TOTAL HOURS OF OPERATION REFERENCE FILL IN THE DATE AND THE MACHINE HOURS AS YOU PERFORM EACH PROCEDURE. A SHADED BOX INDICATES MAINTENANCE IS NOT NEEDED AT THIS TIME.

  • Page 106: Troubleshooting Guide

    Troubleshooting Guide Sawing Problems SECTION 4 TROUBLESHOOTING GUIDE Sawing Problems PROBLEM CAUSE SOLUTION Blades Dull Quickly Dirty logs Clean or debark logs, especially on entry side of the cut When grinding teeth, heating too Grind just enough metal to restore much and causing teeth to soften sharpness to the teeth.
  • Page 107 Troubleshooting Guide Sawing Problems PROBLEM CAUSE SOLUTION Boards Thick Or Thin On Stress in log which causes log to not After log has been squared, take equal Ends Or Middle Of Board. lay flat on the bed. cuts off opposing sides. Take a board off the top.

  • Page 108: Electrical Problems

    When Switch Is Released. 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 109: Power Feed Problems

    Drum switch is dirty. Clean drum switch and lubricate with Speeds Or Does Not Move contact grease supplied by Until Speed Is Above Halfway Wood-Mizer. Mark. Drum switch contacts are bad Check that contacts are in good condi- tion and positively close circuit.
  • Page 110 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 111: Power Feed Circuit Troubleshooting

    Troubleshooting Guide Power Feed Circuit Troubleshooting Power Feed Circuit Troubleshooting LED lights are provided on the control module to help troubleshoot any feed problems you may encounter. See Figure 4-1. The lights can be viewed by removing the rear control box panel. DETAIL DETAIL Detail...

  • Page 112: Hydraulic Problems

    See Monarch manual for trou- solenoid may fix temporarily. Replace solenoid bleshooting solenoid if necessary. NOTE: The solenoid is not a stan- dard automotive type. Order from Wood-Mizer only You Can Get Response From Valve assembly switch con- Locate the valve switch at the bottom of the...
  • Page 113 Troubleshooting Guide Hydraulic Problems PROBLEM CAUSE SOLUTION Pump Motor Runs With Little Low battery Test battery. Recharge or replace as necessary Or No Response From The Cylinders Low fluid level Check fluid level. Add an all-season hydraulic fluid such as Amoco Rycon Oil MV or Mobil Multipurpose ATF (automatic transmission fluid) until level is 4 - 4 1/2"...

  • Page 114: Engine/Motor And Drive Pulleys Alignment

    Troubleshooting Guide Engine/Motor and Drive Pulleys Alignment PROBLEM CAUSE SOLUTION Hydraulic Side Supports Go Dirt in sequence valve Remove sequence valves and clean thoroughly Down Before Or At Same with kerosene. NOTE: Be sure to reassemble Time As Log Turner the valve and install it in its original position on the cylinder Retainer in sequence valve...

  • Page 115: Power Feed Preliminary Test

    Troubleshooting Guide Power Feed Preliminary Test Power Feed Preliminary Test This test will determine if the problem is a mechanical or electrical. 1. Remove the drive belt from the power feed drive pulley. 2. Turn the key switch to the ACC position. Put the carriage forward/reverse switch into the forward position and turn the feed rate dial through all speeds.

  • Page 116: Circuit Breaker Operation

    Troubleshooting Guide Circuit Breaker Operation See Figure 4-2. Place stud on Place stud on bottom right bottom right fuse terminal fuse terminal Extension stud Extension stud storage location storage location 3H0417 FIG. 4-2 1. Remove the fuse box cover and remove the stud from its storage position inside the fuse box. 2.
  • Page 117 Troubleshooting Guide Circuit Breaker Operation See Figure 4-3. The power feed and up/down breakers are externally mounted at the front of the control box. The blade guide, accessory, ignition, and start breakers are located inside the control box. Remove the circuit breaker panel from the control box to access the internal breakers.

  • Page 118: Sawmill Alignment

    SECTION 5 SAWMILL ALIGNMENT Pre-Alignment Procedures The Wood-Mizer sawmill is factory aligned. Two alignment procedures are available to realign the sawmill if necessary. The Routine Alignment instructions should be performed as necessary to solve sawing problems not related to blade performance. The Complete Alignment procedure should be performed approximately every 1500 hours of operation (sooner if you regularly transport the sawmill over rough terrain).

  • Page 119: Blade Installation And Alignment

    Sawmill Alignment Blade Installation And Alignment the trailer tire. LT40M: Adjust the two end outriggers on the main frame tube down just enough to lift weight from the trailer tire. All Portable Sawmills: Adjust the two outer outriggers down just so they touch the ground but do not bear weight.
  • Page 120 Sawmill Alignment Blade Installation And Alignment Check the vertical alignment of the idle-side blade wheel. The gullet of the blade should ride the same distance from the front edge of the wheel at the top and bottom of the wheel. If it does not, loosen and tighten the appropriate adjustment screws on the wheel shaft.

  • Page 121: Saw Head Slide Pad Adjustment

    Sawmill Alignment Saw Head Slide Pad Adjustment Be sure to tighten all nuts against the mounting plates when the adjustment is complete. Vertical Adjustment Bolt Horizontal Adjustment Nuts AC0032 FIG. 5-3 The vertical angle of the drive side wheel is factory-set and should not need to be adjusted. If adjustment is needed use the vertical adjustment bolts.
  • Page 122 Sawmill Alignment Saw Head Slide Pad Adjustment See Figure 5-4. FIG. 5-4 doc012020 Sawmill Alignment...
  • Page 123 Sawmill Alignment Saw Head Slide Pad Adjustment 1. Raise the saw head to the top of the vertical mast and secure the saw head with a chain at the top, or shim it underneath. Check the top set of four pads.The outer two pads should be touching the mast rails.

  • Page 124: Adjusting The Lower Track Rollers

    Sawmill Alignment Adjusting The Lower Track Rollers Adjusting The Lower Track Rollers See Figure 5-5. Making these adjustments correctly will give you square cuts and accurate dimensions across the width of your boards. 1. Using the feed controls, move the saw carriage so that the blade is positioned over the front pivot end rail.
  • Page 125 Sawmill Alignment Adjusting The Lower Track Rollers 7. Move the carriage back to the front pivot end rail. Raise the cutting head until the bottom of the blade is 17" (400 mm) above the outside of the pivot rail support by actual measurement with a tape or ruler.

  • Page 126: Adjusting Bed Rails To The Blade

    Sawmill Alignment Adjusting Bed Rails To The Blade Adjusting Bed Rails To The Blade 1. Move the vertical clamp to its lowest position. Before using the clamp tube as a reference to set the blade, make sure it is level. 2.
  • Page 127 Sawmill Alignment Adjusting Bed Rails To The Blade 5. Move the saw head back to power the hydraulics and move the clamp so it is 10" from the clamp stop. Move the saw head forward until it is positioned over the clamp. Raise the saw head until the blade measures 15 5/16"...
  • Page 128 Sawmill Alignment Adjusting Bed Rails To The Blade See Figure 5-9. Optional bed rail (angled) to blade to blade Inner Height Outer Height Adjustment Nut Adjustment Bolt FIG. 5-9 11. Loosen the jam nut and turn the outer adjustment bolt to adjust the height of the outer end of the pivot rail.
  • Page 129 Sawmill Alignment Adjusting Bed Rails To The Blade See Figure 5-11. Optional bed rail (angled) Blade Bed rails Clamp bolt Clamp bolt Adjustment bolt Adjustment bolt Adjustment bolt SM0064_D FIG. 5-11 14. Loosen the bed rail clamping bolts and turn the adjustment bolts to move the bed rails to the blade if necessary.

  • Page 130: Blade Guide Arm Vertical Adjustment

    Sawmill Alignment Blade Guide Arm Vertical Adjustment Blade Guide Arm Vertical Adjustment 1. Move the saw 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 131: Blade Guide Arm Horizontal Adjustment

    Sawmill Alignment Blade Guide Arm Horizontal Adjustment 6. The rollers are mounted on cam bolts that raise or lower the arm when turned. To adjust the rollers, locate the cam bolt head inside the housing and turn until the arm is lowered or raised as needed.
  • Page 132 Sawmill Alignment Blade Guide Arm Horizontal Adjustment 3. If adjustment is needed, the guide rollers can be adjusted in or out on the threaded mounts to open or close the gap. See Figure 5-14. Adjustment Nuts Adjustment Nuts Adjustment Nuts Adjustment Nuts SM0066 FIG.

  • Page 133: Aligning The Blade Guides

    Aligning the Blade Guides 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 saw head to guide the blade on each side of the material being cut.

  • Page 134: Blade Deflection

    Sawmill Alignment Blade Deflection 5.10 Blade Deflection Perform the following steps to achieve proper blade deflection with the blade guides. 1. Raise the carriage until the blade is 15" (375 mm) above a bed rail. Measure the actual distance with a tape from the top of the rail to the bottom of the blade.

  • Page 135: Blade Guide Vertical Tilt Adjustment

    Sawmill Alignment Blade Guide Vertical Tilt Adjustment 5.11 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 136 Sawmill Alignment Blade Guide Vertical Tilt Adjustment See Figure 5-17. Loosen jam nuts and turn screws Loosen jam nuts and turn screws to tilt roller up or down to tilt roller up or down Sm0070c FIG. 5-17 8. Move the carriage forward so the back end of the tool is over the bed rail. 9.

  • Page 137: Blade Guide Spacing

    Sawmill Alignment Blade Guide Spacing 5.12 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.

  • Page 138: Horizontal Tilt Adjustment

    Sawmill Alignment Horizontal Tilt Adjustment 5.13 Horizontal Tilt Adjustment 1. Finally, both blade guides must be tilted horizontally. Adjust the blade guide arm halfway in. See Figure 5-19. Turn side set screws to adjust horizontal tilt FIG. 5-19 2. Place the Blade Guide Alignment Tool against the face of the outer blade guide roller. 3.

  • Page 139: Blade Guide Block Adjustment

    Sawmill Alignment Blade Guide Block Adjustment 5.14 Blade Guide Block Adjustment To ensure correct cutting, adjust the gap between the blade guide block and the blade. Perform the adjustment with the blade installed and properly tensioned. See Figure 5-20. Loosen both nuts and retaining bolts. Use the adjustment bolt to raise or lower the disc until its distance from the blade is 0.3 - 0.5 mm.

  • Page 140: Horizontal Adjustment Of Side Supports

    Sawmill Alignment Horizontal Adjustment of Side Supports 5.15 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 141: Vertical Adjustment Of Side Supports

    Sawmill Alignment Vertical Adjustment of Side Supports 5.16 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. See Figure 5-23.

  • Page 142: Clamp Stop/Stop Bolt Adjustment

    Sawmill Alignment Clamp Stop/Stop Bolt Adjustment 5.17 Clamp Stop/Stop Bolt Adjustment 1. Once the side supports are aligned, pivot them down to their horizontal position. 2. Tie a string across the face of the side supports. See Figure 5-24. 3. Loosen the clamp stop bolts and adjust the clamp stop until it touches the string. Loosen the jam nut and adjust the bolt on the middle-rear bed rail until it touches the string.

  • Page 143: Saw Head Tilt

    Sawmill Alignment Saw Head Tilt 5.18 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 bolts to raise the outside of the saw head 1/16"...

  • Page 144: Blade Height Scale Adjustment

    Sawmill Alignment Blade Height Scale Adjustment 5.19 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 145: Board Return Bracket

    Sawmill Alignment Board Return Bracket 5.20 Board Return Bracket Adjust the board return bracket so the bottom edge is positioned 1/4" below the bottom of the blade. 1. With a square cant on the bed rails, lower the blade until it touches the top of the cant. Then raise the saw head 1/4"...
  • Page 146 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.

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