Page 1 ® Wood-Mizer Sawmill Safety, Setup, Operation & Maintenance Manual LT30HD rev. G1.00 - J7.00 LT40HD rev. G1.00 - J8.00 Safety is our #1 concern! Read and understand all safety information and instructions before oper- ating, setting up or maintaining this machine.
Page 2: Table Of Contents
Portable Sawmill Setup ................3-3 Replacing The Blade ................3-7 Tensioning The Blade................3-8 Tracking The Blade ................3-9 Starting The Engine................3-11 SECTION 4 SAWMILL OPERATION Hydraulic Control Operation..............4-1 LT30HD Rev. G1.00 - G5.02 LT40HD Rev. G1.00 - G5.02 ........4-1 LT30HD Rev. G6.00+ LT40HD Rev. G6.00+..........4-3 Loading, Turning And Clamping Logs ..........4-5...
Page 3 Power Feed Variable Feed Rate Switch Test ........6-17 Power Feed Preliminary Test ...............6-18 Power Feed Mechanical Test..............6-19 6.10 Hydraulic Pressure Test................6-20 6.11 Fuse Terminal Extension Stud..............6-22 6.12 Circuit Breaker Operation ..............6-24 LT30HD Rev. G6.00+ LT40HD Rev. G6.00+............6-24 Table of Contents HD97doc041910...
Page 4 Blade Guide Flange Spacing ..........7-50 Side Support Alignment............7-52 Clamp Stop/Stop Bolt Adjustment ........7-54 Saw Head Tilt ..............7-55 Blade Height Scale Adjustment...........7-57 SECTION 8 HYDRAULIC INFORMATION Hydraulic Schematic ................8-1 LT30HD Rev. G6.00+ LT40HD Rev. G6.00+..........8-1 Hydraulic Schematic ................8-2 LT30HD Rev. G1.00 - G5.02 LT40HD Rev.
Page 5 Table of Contents Section-Page INDEX Table of Contents HD97doc041910...
Page 6: Introduction
The information and instructions given in this manual do not amend or extend the limited warranties for the equipment given at the time of purchase. For general information regarding Wood-Mizer and our “Forest to Final Form” products, please refer to the All Products Catalog in your support package.
Page 7: Customer And Sawmill Identification
Customer and Sawmill Identification Customer and Sawmill Identification Each Wood-Mizer sawmill has a model number and a 17-digit Vehicle Identification Num- ber (VIN). In addition, when you pick up your mill, you will receive a customer number. These three numbers will help expedite our service to you. Please locate them now and write them below so you have quick, easy access to them.
Page 8 Introduction Customer and Sawmill Identification The model number and V.I.N. can be found in the following locations. HD0133 MODEL NUMBER AND V.I.N. LOCATIONS HD97doc041910 Introduction...
Page 9: Getting Service
Getting Service 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 com- ments and suggestions are welcome.
Page 10: Branches & Authorized Sales Centers
Wood-Mizer Canada Wood-Mizer Branches Authorized Sales Centers* Branches 2 Wood-Mizer Northeast 6 California 16 Wood-Mizer Canada East 8604 State Route 104 6980 Camp Far West Road Box 173, 1082 #1 Hwy Hannibal, NY 13074 Sheridan, CA 95681 Aylesford, NS B0P 1C0...
Page 11 Introduction Branches & Authorized Sales Centers 5 Wood-Mizer Missouri 9 Pennsylvania Authorized Sales Centers* 9664 Lawrence 2130 HCR 75 (Off Old Road 522) NMt. Vernon, MO 65712 Shade Gap, PA 17255 19 Ontario North Phone (417) 466-9500 Phone (814) 259-9976...
Page 12: Specifications
Introduction Specifications Specifications Model: LT30HD Rev. H8.00 - J6.00 Dimensions: Length: 21'-11" Width: 6'-6" Height (Ground To Mast): 7'-8" Height (Max Head Position): 10'-1" Bed Height (Ground To Bed): 30" Weights: Basic Unit (Wet): 2706 lbs 3086 lbs 2996 lbs...
Page 13 Introduction Specifications Model: LT40HD Rev. H8.00 - J7.00 Dimensions: Length: 26'-2" Width: 6'-6" Height (Ground To Mast): 7'-8" Height (Max Head Position): 10'-1" Bed Height (Ground To Bed): 30" Weights: Basic Unit (Wet): 2906 lbs 3286 lbs 3196 lbs 3475 lbs With Trailer: 3331 lbs 3711 lbs 3621 lbs...
Page 14 Introduction Specifications Model: LT30HD Rev. H3.00 - H7.00 Dimensions: Length: 21'-11" Width: 6'-6" Height (Ground To Mast): 7'-8" Height (Max Head Position): 10'-1" Bed Height (Ground To Bed): 30" Weights: Basic Unit (Wet): 2706 lbs 3086 lbs With Trailer: 3131 lbs...
Page 15 Introduction Specifications Model: LT40HD Rev. H3.00 - H7.00 Dimensions: Length: 26'-2" Width: 6'-6" Height (Ground To Mast): 7'-8" Height (Max Head Position): 10'-1" Bed Height (Ground To Bed): 30" Weights: Basic Unit (Wet): 2906 lbs 3286 lbs With Trailer: 3331 lbs 3711 lbs Tongue Weight: 173 lbs 153 lbs...
Page 16 Introduction Specifications Model: LT30HD Rev. G6.00 - H2.00 Dimensions: Length: 21'-11" Width: 6'-6" Height (Ground To Mast): 7'-8" Height (Max Head Position): 10'-1" Bed Height (Ground To Bed): 30" Weights: Basic Unit (Wet): 2782 lbs 2964 lbs With Trailer: 3104 lbs...
Page 17 Introduction Specifications Model: LT40HD Rev. G6.00 - H2.00 Dimensions: Length: 26'-2" Width: 6'-6" Height (Ground To Mast): 7'-8" Height (Max Head Position): 10'-1" Bed Height (Ground To Bed): 30" Weights: Basic Unit (Wet): 2982 lbs 3164 lbs With Trailer: 3304 lbs 3486 lbs Tongue Weight: 173 lbs 153 lbs...
Page 18 Introduction Specifications Model: LT30HD Rev. G1.00 - G5.02 Dimensions: Length: 21'-11" Width: 6'-6" Height (Ground To Mast): 7'-8" Height (Max Head Position): 10'-1" Bed Height (Ground To Bed): 30" Weights: Basic Unit (Wet): 2748 lbs 2838 lbs With Trailer: 3048 lbs...
Page 19 Introduction Specifications Model: LT40HD Rev. G1.00 - G5.02 Dimensions: Length: 26'-2" Width: 6'-6" Height (Ground To Mast): 7'-8" Height (Max Head Position): 10'-1" Bed Height (Ground To Bed): 30" Weights: Basic Unit (Wet): 2950 lbs 3040 lbs With Trailer: 3250 lbs 3340 lbs Tongue Weight: 140 lbs 120 lbs...
Page 20: Safety
Safety Safety Symbols SECTION 2 SAFETY Safety Symbols The following symbols and signal words call your attention to instructions concerning your personal safety. Be sure to observe and follow these instructions. DANGER! indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. WARNING! suggests a potentially hazardous situation which, if not avoided, could result in death or serious injury.
Page 21: Safety Instructions
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 22 Safety Safety Instructions 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. Changing blades is safest when done by one per- son! Keep all other persons away from area when coiling, carrying or changing a blade.
Page 23 Safety Safety Instructions HANDLE FUEL/LUBRICANTS SAFELY DANGER! Due to the flammable nature of fuel and oil, never smoke, weld, grind or allow sparks near your engine or storage tanks, especially during times of fueling. DANGER! Never allow fuel to spill on a hot engine during fueling operations or otherwise.
Page 24 Safety Safety Instructions USE CAUTION WHEN WORKING WITH BATTERIES DANGER! Batteries expel explosive gases. Keep sparks, flames, burning cigarettes, or other ignition sources away at all times. Always wear safety goggles and a face shield when working near batteries. Failure to do so will cause serious injury. WARNING! Battery posts, terminals and related accessories con- tain lead and lead compounds, chemicals known to the State of...
Page 25 Safety Safety Instructions CAUTIONS FOR SAWMILL SETUP WARNING! Do not set up the mill on ground with more than a 10 degree incline. If setup on an incline is necessary, put blocks under one side of the mill or dig out areas for the outrigger legs to keep mill level.
Page 26 Safety Safety Instructions CHECK SAWMILL BEFORE OPERATION DANGER! Make sure all guards and covers are in place and secured before operating or towing the sawmill. Failure to do so may result in serious injury. Be sure the blade housing and pulley covers are in place and secure.
Page 27 Safety Safety Instructions KEEP HANDS AWAY DANGER! Always disengage the blade and shut off the sawmill engine before changing the blade. Failure to do so will result in serious injury. DANGER! Engine components can become very hot during opera- tion. Avoid contact with any part of a hot engine. The exhaust com- ponents of your engine are especially hot during and following operation.
Page 28 Safety Safety Instructions CAUTIONS FOR GAS OR DIESEL ENGINE OPERATION DANGER! Operate your engine/machine only in well venti- lated areas. The exhaust gases of your engine can cause nausea, delirium and potentially death unless adequate ventilation is present. DANGER! Never operate an engine with a fuel or oil leak. The leaking fuel or oil could potentially come in contact with hot surfaces and ignite into flames.
Page 29 Safety Safety Instructions USE PROPER PROCEDURE WHEN CONDUCTING ELECTRICAL SAFETY CHECKS AND MAINTENANCE DANGER! Make sure all electrical installation, service and/or maintenance work is performed by a qualified electrician and is in accordance with applicable electrical codes. DANGER! ARC FLASH AND SHOCK HAZARD! Hazardous volt- age inside the electric sawmill disconnect box, starter box, and at the motor can cause shock, burns, or death.
Page 30 Safety Safety Instructions DANGER! Lockout procedures must be used during: Changing or adjusting blades Unjamming operations Cleaning Mechanical repair Electrical maintenance Retrieval of tools/parts from work area Activities where guards or electrical panel guard is open or removed Maintenance hazards include: Blade contact Pinch points Kickbacks...
Page 31 Safety Safety Instructions SAWMILL LOCKOUT PROCEDURE Lockout procedures must be followed (see ANSI Standard Z244.1-1982 and OSHA regu- lation 1910.147). Purpose: This procedure establishes the minimum requirements for lockout of energy sources that could cause injury. Responsibility: The responsibility for seeing that this procedure is followed is binding upon all workers. All workers shall be instructed in the safety significance of the lockout procedure.
Page 32 Owner’s Responsibility The procedures listed in this manual may not include all ANSI, OSHA, or locally required safety procedures. It is the owner/operator’s responsibility and not Wood-Mizer Products to ensure all operators are properly trained and informed of all safety protocols.
Page 33 Safety Safety Instructions 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 34 Safety Safety Instructions UP/DOWN SYSTEM SAFETY WARNING! Always secure the saw head with a 5/16" chain with at least 1900 lbs. working load capacity before adjusting the up/down chain. The saw head may fall, causing severe injury or death. WARNING! Always secure the saw head with a 5/16"...
Page 35 Safety Safety Instructions WARNING! The trailer option is designed for the express purpose of towing the sawmill it is supplied with. Do not make modifications or additions that affect the weight and/or stability of the towing unit. Doing so may result in property damage and/or serious injury or death.
Page 36: Sawmill Setup
Sawmill Setup Stationary Sawmill Setup SECTION 3 SAWMILL SETUP Stationary Sawmill Setup Prepare a firm, level area where the sawmill can be anchored. There should be enough room around the sawmill for operators, sawdust removal, log loading and board removal. A cement pad with 5/8”...
Page 37 Sawmill Setup Stationary Sawmill Setup See Figure 3-1. Pivot End Rail Side Support Bed Rail Stop Block SM0130 FIG. 3-1 Sawmill Setup HD97doc041910...
Page 38: Portable Sawmill Setup
Sawmill Setup Portable Sawmill Setup Portable Sawmill Setup WARNING! Do not set up the mill on ground with more than a 10 degree incline. If setup on an incline is necessary, put blocks under one side of the mill or dig out areas for outrig- ger legs to keep mill level.
Page 39 Put front outrigger down before moving cutting head from the rest position. Failure to do so may result in serious injury. NOTE: Mills prior to LT30HD/40HD H6.02 do not have a notch in the outrigger channel. See Figure 3-2. Channel Notch...
Page 40 Sawmill Setup Portable Sawmill Setup See Figure 3-3. For Fine Adjust Outriggers (FAOs), lower the outrigger as close to the ground as possible, then secure in place with the locking pin. Adjust the outrigger base so that it contacts the ground. To adjust, use the provided wrench to turn the height adjust- ment nut.
Page 41 Sawmill Setup Portable Sawmill Setup 3. Remove the fenders by lifting them out of the slots. CAUTION! To prevent fender damage, remove fenders before operating sawmill or loading logs. 4. Use the carriage forward/reverse switch (left side of control box) to move the cutting head toward the front end of the mill.
Page 42: Replacing The Blade
Sawmill Setup 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 43: Tensioning The Blade
Sawmill Setup Tensioning The Blade Tensioning The Blade See Figure 3-5. Tension the blade by turning the hydraulic tensioning handle clockwise until the tension gauge indicates the recommended tension. Blade Tensioner Gauge Blade Tensioner Handle Cant Control SM0243 FIG. 3-5 See Table 3-1.
Page 44: Tracking The Blade
Sawmill Setup Tracking The Blade Tracking The Blade 1. Make sure the middle blade housing cover is closed and all persons are clear of the open side of the saw head. 2. Start the engine. 3. Engage the blade, rotating the blade until the blade positions itself on the wheels. WARNING! Do not spin the blade wheels by hand.
Page 45 Sawmill Setup Tracking The Blade occured while adjusting the cant control. 7. Close the middle blade housing cover and replace the large blade housing covers. DANGER! Make sure all guards and covers are in place and secured before operating or towing the sawmill. Failure to do so may result in serious injury.
Page 46: Starting The Engine
Sawmill Setup Starting The Engine Starting The Engine See the appropriate manual supplied with your specific engine/motor configuration for starting and operating instructions. DANGER! Make sure all guards and covers are in place and secured before operating or towing the sawmill. Failure to do so may result in serious injury.
Page 47: Sawmill Operation
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. LT30HD Rev. G1.00 - G5.02 LT40HD Rev.
Page 48: Lt30Hd Rev. G1.00 - G5.02 Lt40Hd Rev. G1.00 - G5.02
Sawmill Operation LT30HD Rev. G1.00 - G5.02 LT40HD Rev. G1.00 - G5.02 Use the hydraulic control levers to get the mill ready to load a log. DANGER! Keep all persons out of the path of moving equipment and logs when operating sawmill or loading and turning logs.
Page 49: Lt30Hd Rev. G6.00+ Lt40Hd Rev. G6.00
Sawmill Operation LT30HD Rev. G6.00+ LT40HD Rev. G6.00+ LT30HD Rev. G6.00+ LT40HD Rev. G6.00+ See Figure 4-3. Hydraulic units have six control levers to load, clamp, turn and level logs. Clamp Up/Down Turner Clamp In/Out Front Toeboard Rear Toeboard Loader HD0059 FIG.
Page 50 Sawmill Operation LT30HD Rev. G6.00+ LT40HD Rev. G6.00+ 1. Move the clamp out and down so it will not get in the way of logs being loaded onto the bed. Lower the clamp in/out lever to move the clamp out toward the loading side of the saw- mill.
Page 51: Loading, Turning And Clamping Logs
Sawmill Operation Loading, Turning And Clamping Logs Loading, Turning And Clamping Logs To Load Logs 1. Move the saw carriage to the front end of the frame. CAUTION! Before loading a log, be sure the cutting head is moved far enough forward so the log does not hit it. Failure to do so may result in machine damage.
Page 52 Sawmill Operation Loading, Turning And Clamping Logs 7. Standard Hydraulic Rev. G6.00+ Only: Raise the clamp up/down lever to raise the clamp up to prevent the log from rolling off the bed. Standard Hydraulic Rev. G1.00 - G5.02 Only To flip the clamp up, lower the clamp lever to move the clamp out until it contacts the flip arm.
Page 53 Sawmill Operation Loading, Turning And Clamping Logs 3. When the turner arm is lowered all the way, the side supports will begin to lower. Back the clamp off slightly, and let the side supports come down until they are positioned below the level of your first few cuts.
Page 54: Clamp Extension
Sawmill Operation Clamp Extension Clamp Extension LT30HD Rev. G1.00 - G5.02 LT40HD Rev. G1.00 - G5.02 The clamp extension stored at the end of the clamp tube can be used for clamping small cants or logs. The clamp extension is used with the hydraulic clamp in its down position.
Page 55: Up/Down Operation
Sawmill Operation Up/Down Operation Up/Down Operation This section describes operation of the up/down system with the standard controls. See the operation section of the Setworks or Accuset manual for operation of the up/down system using these options. 1. Install a blade, if needed, and check for correct blade tension. (See Section 3.3).
Page 56: Blade Guide Arm Operation
Sawmill 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 1" (25.4 mm). 2.
Page 57: Clutch/Brake Operation
Sawmill Operation Clutch/Brake Operation Clutch/Brake Operation NOTE: If your sawmill is equipped with the Autoclutch Option, see the Autoclutch Option manual for clutch operating instructions. 1. Clear any loose objects from the area of the blade, motor, and drive belt. 2.
Page 58 5. 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. LT30HD Super and LT40HD Rev. G1.00 - G2.04 only: See Figure 4-8. The clutch handle was equipped with a detent pin originally provided to lock the handle in neutral when adjusting the drive belts and/or brake strap.
Page 59: Power Feed Operation
Sawmill Operation Power Feed Operation Power Feed Operation See Figure 4-9. The power feed system moves the carriage forward and backward by using two switches on the control panel. Carriage Forward Carriage Reverse Forward Feed Rate 3H0280 FIG. 4-9 Carriage Feed Rate The carriage feed rate switch controls the speed at which the carriage travels forward.
Page 60 Sawmill Operation Power Feed Operation 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. This prevents accidental carriage movement which may cause serious injury or death. Using The Power Feed 1.
Page 61: Cutting The Log
Cutting The Log 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 62 Sawmill Operation Cutting The Log 9. Lower the toe boards, if they were used.Use the hydraulic levers to release the clamp and engage the log turner. Turn the log 90 or 180 degrees. Make sure the flat on the log is placed flat against side supports if turned 90 degrees.
Page 63: Edging
Sawmill Operation Edging 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. 2. Stack the flitches on edge against the side supports.
Page 64: Blade Height Scale
Sawmill Operation Blade Height Scale 4.10 Blade Height Scale See Figure 4-10. The blade height scale is attached to the carriage head frame. It includes: a blade height indicator an inch scale a quarter scale Blade Height Indicator Quarter Scale Inch Scale 3H0893 FIG.
Page 65 Sawmill Operation Blade Height Scale The scales are attached to the frame and move up and down with the saw head. The blade indicator, used to read the inch and quarter scales, remains stationary. The Inch Scale The horizontal line on the blade height indicator shows how many inches the bottom of the blade is above the bed of the mill.
Page 66 Sawmill Operation Blade Height Scale The Quarter Scale See Table 4-1. Two quarter scales are provided with four sets of marks. Each set repre- sents a specific lumber thickness. Saw kerf and shrinkage allowance are included, but actual board thickness will vary slightly depending on blade thickness and tooth set. To choose which scale to use, determine what finished thickness you want to end up with.
Page 67: Water Lube Operation
15 seconds. This will clean the blade of sap buildup. Wipe the blade dry with a rag before storing or sharpening. For further lubrication benefits, add one 12oz. bottle of Wood-Mizer Lube Additive to 5 gallons of water. Wood-Mizer Lube Additive enables some previously impossible timbers to be cut by significantly reducing resin buildup on the blade.
Page 68 Sawmill Operation Water Lube Operation a rag. Failure to do so can damage the equipment and may result in serious injury or death. If you are sawing in freezing temperatures, remove the water lube bottle from the sawmill when done sawing and store it in a warm place. Blow any remaining water from the water lube hose.
Page 69: Preparing The Sawmill For Towing
Sawmill Operation Preparing The Sawmill For Towing 4.12 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 70 Sawmill Operation Preparing The Sawmill For Towing Standard Hydraulic Rev. G1.00 - G5.02 Only 2. Move the clamp all the way out toward the loading side of the sawmill. Standard Hydraulic Rev. G6.00+ Only 3. Move the clamp all the way in toward the main bed frame tube. CAUTION! Move the hydraulic clamp and turner to provide maximum ground clearance before towing.
Page 71 Sawmill Operation Preparing The Sawmill For Towing See Figure 4-13. Rest Pin Lock Pin HD0075 FIG. 4-13 10. Continue lowering the head 3/4" (19mm) until it contacts the stop blocks on the mast rails. CAUTION! It is important that the lower stop bolts are prop- erly adjusted to secure the carriage on the track rail.
Page 72 Sawmill Operation Preparing The Sawmill For Towing 11. If necessary, adjust the two stops located at the bottom of the mast so the saw head con- tacts them after it is lowered 3/4" (19mm) past where it contacts the rest pin. See Figure 4-14.
Page 73 Sawmill Operation Preparing The Sawmill For Towing 13. Hook the carriage safety chain located at the bottom of the carriage to the bracket at the bottom of the mast. See Figure 4-15. FIG. 4-15 CAUTION! Check to be sure the saw head safety chain is secured before towing the sawmill.
Page 74 Sawmill Operation Preparing The Sawmill For Towing 15. Place both fenders in the slots located behind the trailer tires and secure with retaining pins (prior to 6/00) or rubber straps (6/00+). Raise all but the very front outrigger. For Fine Adjust Outriggers (FAOs), be sure to adjust the outrigger base height so that the grease fitting is just below the lowest outrigger hole before securing the FAO in position with the lock pin.
Page 75: Maintenance
Maintenance Wear Life SECTION 5 MAINTENANCE This section lists the maintenance procedures that need to be performed. See the Maintenance Log located after this section for a complete list of maintenance procedures and intervals. Keep track of machine maintenance by filling in the machine hours and the date you perform each procedure.
Page 76: Blade Guides
Maintenance Blade Guides Blade Guides WARNING! Before performing service near moving parts such as blades, pulleys, motors, belts and chains, first turn the key switch to the OFF (#0) position and remove the key. If the key is turned on and moving parts activated, serious injury may result.
Page 77: Ez-Glide Guide Blocks
Maintenance EZ-Glide Guide Blocks As the blocks wear, the front inside corner will wear more than the body of the block. When the corner wears far enough, sawing performance will be affected even if the body of the block is adjusted properly to the blade. At this point, the block should be replaced. If you have access to the appropriate equipment, you can grind or mill the blocks to a new flat surface and reuse them.
Page 78: Ceramic Guide Disks
Preventing sap buildup on the blade is critical when using the high-performance blade guide system. If the wood you are sawing leaves sap buildup using plain water in the blade lube system, use Wood-Mizer lube additive (4-Pak 60 oz. bottles part no. ADD-1). Ceramic Guide Disks 1.
Page 79 Maintenance Ceramic Guide Disks See Figure 5-2. Remove the guide disk from the blade guide assembly and rub against the honing block using even, back-and-forth or circular strokes to smooth the disk sur- face. Use the honing block to smooth the sharp edges around the disk. FIG.
Page 80 Preventing sap buildup on the blade is critical when using the high-performance blade guide system. If the wood you are sawing leaves sap buildup using plain water in the blade lube system, use Wood-Mizer lube additive (4-Pak 60 oz. bottles part no. ADD-1). HD97doc041910...
Page 81 Maintenance Ceramic Guide Disks 3. Make sure the blade screw in the top center of the C-frame is 1/16" (1.5 mm) away from the blade. If not, loosen the nut and adjust the screw as necessary. Check the screw every 500 hours of operation. Failing to maintain this adjustment will lead to early blade breakage.
Page 82: Sawdust Removal
Maintenance Sawdust Removal Sawdust Removal WARNING! Before performing service near moving parts such as blades, pulleys, motors, belts and chains, first turn the key switch to the OFF (#0) position and remove the key. If the key is turned on and moving parts activated, serious injury may result.
Page 83: Carriage Track, Wiper & Scrapers
Maintenance Carriage Track, Wiper & Scrapers Carriage Track, Wiper & Scrapers WARNING! Before performing service near moving parts such as blades, pulleys, motors, belts and chains, first turn the key switch to the OFF (#0) position and remove the key. If the key is turned on and moving parts activated, serious injury may result.
Page 84 Maintenance Carriage Track, Wiper & Scrapers 3. Check the track scrapers as needed. Make sure the scrapers fit firmly against the rail. If a track scraper needs to be adjusted, loosen the screw, push the scraper downward until it fits firmly against the rail, and retighten the thumb screw. Carriage track Remove track wiper, clean...
Page 85: Vertical Mast Rails
Maintenance Vertical Mast Rails Vertical Mast Rails WARNING! Before performing service near moving parts such as blades, pulleys, motors, belts and chains, first turn the key switch to the OFF (#0) position and remove the key. If the key is turned on and moving parts activated, serious injury may result.
Page 86: Drum Switches
Lubricate the up/down and power feed drum switch contacts inside the control panel every fifty hours of operation. 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 87: Miscellaneous
Maintenance Miscellaneous Miscellaneous 1. Oil all chains with Dexron III ATF every fifty hours of operation. CAUTION! Do not use chain lube. It causes sawdust buildup in chain links. 2. 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.
Page 88: Blade Tensioner
Maintenance Blade Tensioner Blade Tensioner WARNING! Before performing service near moving parts such as blades, pulleys, motors, belts and chains, first turn the key switch to the OFF (#0) position and remove the key. If the key is turned on and moving parts activated, serious injury may result.
Page 89 Maintenance Blade Tensioner See Figure 5-8. Add an Automatic Transmission Fluid (ATF) such as Dexron III ATF to the hydraulic blade tensioner as needed. To add enough fluid to completely fill the ten- sioner block: 1. Unscrew the tensioner handle to reveal 2” of thread. Remove the sawmill blade housing covers and blade.
Page 90: Blade Wheel Belts
Maintenance Blade Wheel Belts Blade Wheel Belts WARNING! Before performing service near moving parts such as blades, pulleys, motors, belts and chains, first turn the key switch to the OFF (#0) position and remove the key. If the key is turned on and moving parts activated, serious injury may result.
Page 91: Brake Strap Adjustment
Maintenance Brake Strap Adjustment 5.10 Brake Strap Adjustment WARNING! Before performing service near moving parts such as blades, pulleys, motors, belts and chains, first turn the key switch to the OFF (#0) position and remove the key. If the key is turned on and moving parts activated, serious injury may result.
Page 92 Maintenance Brake Strap Adjustment NOTE: Be careful to not overtighten. Overtightening will cause the drive belt to “grab” the pulley and can prevent the engine from starting properly. 5. Replace the belt cover. 5-18 HD97doc041910 Maintenance...
Page 93: Drive Belt Adjustment
Maintenance Drive Belt Adjustment 5.11 Drive Belt Adjustment WARNING! Disconnect and lockout power before perform- ing any service to the electrical system. For battery-pow- ered equipment, disconnect the negative battery terminal cable. Failure to do so may result in injury and/or electrical system damage.
Page 94 Maintenance Drive Belt Adjustment Loosen jam nuts Turnbuckle counterclockwise to tighten belt 3H0287B FIG. 5-10 3. Place a wrench on the flats at the top of the turnbuckle. Use a second wrench to turn the bottom-most jam nut clockwise (as viewed from the bottom) to tighten the belt, counter- clockwise to loosen the belt.
Page 95 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 96: Clutch Handle Detent Adjustment
NOTE: The detent pin was removed on LT30HD and LT40HD Rev. G2.05. The detent pin should be removed from previous revision mills to prevent possible injury caused by unin- tended use of the detent pin (such as using the pin to enable the blade to be spun by hand during blade tracking).
Page 97: Hydraulic System
Maintenance Hydraulic System 5.13 Hydraulic System WARNING! Disconnect and lockout power before perform- ing any service to the electrical system. For battery-pow- ered equipment, disconnect the negative battery terminal cable. Failure to do so may result in injury and/or electrical system damage.
Page 98 Maintenance Hydraulic System TEMPERATURE -30° -20° -10° 0° 10° 20° 30° 40° 50° 60° 70° 80° 90° 100° 110° 120° -35° -29° -23° -18° -12° -7° -1° 5° 10° 16° 21° 27° 32° 38° 44° 49° Level A Fluid Level B Fluid Level C Fluid FIG.
Page 99 Maintenance Hydraulic System 3. Inspect the hydraulic pump motor brushes every 750 hours of operation. Remove brush dust and replace the brushes if they worn to a length of 1/4” or shorter. CAUTION! Do not operate the hydraulic system if the pump motor brushes are worn shorter than 1/4”.
Page 100: Drive Bearing
Drain and refill the fluid in the drive-side cylinder bearing housing every 500 hours of operation. For LT30HD/40HD rev. H3.00 and later, disconnect the oil level view hose from the fitting at the top of the bearing housing. With the fitting at the bottom of the bearing housing still connected, allow oil to drain from the oil level view hose.
Page 101 Maintenance Drive Bearing For mills prior to rev. H3.00, remove the top and bottom oil plugs. Pour an Automatic Transmission Fluid (ATF) such as Dexron III ATF into the top hole until it begins to flow from the bottom hole. Reinstall the square oil plug to the bottom hole and the vented oil plug to the top hole.
Page 102: Up/Down System
Maintenance Up/Down System 5.15 Up/Down System WARNING! Before performing service near moving parts such as blades, pulleys, motors, belts and chains, first turn the key switch to the OFF (#0) position and remove the key. If the key is turned on and moving parts activated, serious injury may result.
Page 103 Maintenance Up/Down System Up/Down Chain Adjustment Nuts 3H0020B FIG. 5-16 JAM NUT DESIGN Maintenance HD97doc041910 5-29...
Page 104 Maintenance Up/Down System 1. Grease the up/down gear reducer shaft bearing with a NLGI No. 2 grade lithium grease every 1000 hours of operation. 1000 See Figure 5-17. FIG. 5-17 5-30 HD97doc041910 Maintenance...
Page 105 Repeat every 5000 hours or every 2 years, whichever comes first. D30/D33/G36 models: Drain and refill the gearbox with 24 ounces of oil after every 5000 hours of sawmill operation or every 2 years, whichever comes first. Wood-Mizer offers replacement gear oil in 8 ounce bottles. Maintenance HD97doc041910 5-31...
Page 106 Maintenance Up/Down System 5-32 HD97doc041910 Maintenance...
Page 107: Power Feed
Maintenance Power Feed 5.16 Power Feed WARNING! Before performing service near moving parts such as blades, pulleys, motors, belts and chains, first turn the key switch to the OFF (#0) position and remove the key. If the key is turned on and moving parts activated, serious injury may result.
Page 108 Maintenance Power Feed 2. Adjust the power feed chain as needed. Measure the power feed chain tension with the saw head all the way toward the front of the mill. Use the two lock nuts at the rear of the mill to tighten or loosen the power feed chain.
Page 109: Charging The Battery
Maintenance Charging The Battery 5.17 Charging The Battery DANGER! Batteries expel explosive gases. Keep sparks, flames, burning cigarettes, or other ignition sources away at all times. Always wear safety goggles and a face shield when working near batteries. Failure to do so will cause serious injury.
Page 110 Maintenance Charging The Battery CAUTION! Be sure the battery is fully charged before transporting the sawmill. If the battery is not fully charged, excessive vibration could reduce the overall service life of the battery. NOTE: A fuse terminal extension stud is provided in the fuse box.
Page 111: Maintenance Log
MAINTENANCE LOG (Check Engine And Option Manuals For Additional Maintenance Procedures) Lubricate Blade Guide Rollers (If Applicable) See Section 5.2 Daily - Every 4 Hours Check Blade Guide Block/Roller Wear See Section 5.2 Daily - Every Blade Change Remove Excess Sawdust From Blade Wheel Hous- See Section 5.3 Daily - Every Blade Change DAILY MAINTENANCE PROCEDURES...
Page 112 Grease up/down shaft bearing See Section 5.15 Maintenance HD97doc041910 5-38...
Page 113 MAINTENANCE LOG (Check Engine And Option Manuals For Additional Maintenance Procedures) TOTAL HOURS OF OPERATION MANUAL FILL IN THE DATE AND THE MACHINE HOURS AS YOU PERFORM EACH PROCEDURE. PROCEDURE REFERENCE A SHADED BOX INDICATES MAINTENANCE IS NOT NEEDED AT THIS TIME. 550 HRS 600 HRS 650 HRS...
Page 114 MAINTENANCE LOG (Check Engine And Option Manuals For Additional Maintenance Procedures) TOTAL HOURS OF OPERATION MANUAL FILL IN THE DATE AND THE MACHINE HOURS AS YOU PERFORM EACH PROCEDURE. PROCEDURE REFERENCE A SHADED BOX INDICATES MAINTENANCE IS NOT NEEDED AT THIS TIME. 1050 HRS 1100 HRS 1150 HRS...
Page 115 MAINTENANCE LOG (Check Engine And Option Manuals For Additional Maintenance Procedures) TOTAL HOURS OF OPERATION MANUAL FILL IN THE DATE AND THE MACHINE HOURS AS YOU PERFORM EACH PROCEDURE. PROCEDURE REFERENCE A SHADED BOX INDICATES MAINTENANCE IS NOT NEEDED AT THIS TIME. 1550 HRS 1600 HRS 1650 HRS...
Page 116 MAINTENANCE LOG (Check Engine And Option Manuals For Additional Maintenance Procedures) TOTAL HOURS OF OPERATION MANUAL FILL IN THE DATE AND THE MACHINE HOURS AS YOU PERFORM EACH PROCEDURE. PROCEDURE REFERENCE A SHADED BOX INDICATES MAINTENANCE IS NOT NEEDED AT THIS TIME. 2050 HRS 2100 HRS 2150 HRS...
Page 117 MAINTENANCE LOG (Check Engine And Option Manuals For Additional Maintenance Procedures) TOTAL HOURS OF OPERATION MANUAL FILL IN THE DATE AND THE MACHINE HOURS AS YOU PERFORM EACH PROCEDURE. PROCEDURE REFERENCE A SHADED BOX INDICATES MAINTENANCE IS NOT NEEDED AT THIS TIME. 2550 HRS 2600 HRS 2650 HRS...
Page 118: Troubleshooting Guide
Troubleshooting Guide Sawing Problems SECTION 6 TROUBLESHOOTING GUIDE Sawing Problems WARNING! Before performing service near moving parts such as blades, pulleys, motors, belts and chains, first turn the key switch to the OFF (#0) position and remove the key. If the key is turned on and moving parts activated, serious injury may result.
Page 119 Troubleshooting Guide Sawing Problems PROBLEM CAUSE SOLUTION Boards Thick Or Thin On Stress in log which causes log After log has been squared, take equal cuts Ends Or Middle Of Board. to not lay flat on the bed. off opposing sides. Take a board off the top.
Page 120: Electrical Problems
Replace drum switch or remove control panel cover and clean and lubricate con- tacts 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.
Page 121 Troubleshooting Guide Electrical Problems PROBLEM CAUSE SOLUTION Up/Down Or Power Feed System overload or bind Correct problem (See Section Motors Overheat And Lose occurred. ). Allow motor to cool Power. before restarting. Normal operation factors Allow motor to cool before exceeded (eg: up/down con- restarting.
Page 122: 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 cir- cuit.
Page 123 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 124: Power Feed Circuit Troubleshooting
Troubleshooting Guide Power Feed Circuit Troubleshooting Power Feed Circuit Troubleshooting LT30HD Rev. G9.00+ LT40HD Rev. G9.00+ LED lights are provided on the control module to help troubleshoot any feed problems you may encounter. See Figure 6-1. The lights can be viewed by removing the rear control box panel.
Page 125: Lt30Hd Rev. G1.00 - G8.00 Lt40Hd Rev. G1.00 - G8.00
Troubleshooting Guide LT30HD Rev. G1.00 - G8.00 LT40HD Rev. G1.00 - G8.00 feed rate switch is turned up and down. If the OUT light does not correspond with the IN light, look to see if OV or OL lights are coming on. If not, then the control module may be damaged.
Page 126 Wood-Mizer. The light will flash about once every second and will deactivate the output circuit. If the power feed motor is a Wood-Mizer replacement, replace the circuit board.
Page 127: Hydraulic Problems
See Monarch manual for noid. Tapping on solenoid may fix tem- troubleshooting solenoid porarily. Replace solenoid if necessary. NOTE: The solenoid is not a standard automotive type. Order from Wood-Mizer only Troubleshooting Guide HD97doc041910 6-10...
Page 128 Troubleshooting Guide Hydraulic Problems PROBLEM CAUSE SOLUTION You Can Get Response Valve assembly switch con- Locate the valve switch at the bottom From the Pump By Actuating tacts are not properly of the valve assembly. Use a 3MM All But One or Two Handles adjusted allen wrench to loosen the set screw on each of the five switch contacts.
Page 129 Troubleshooting Guide Hydraulic Problems PROBLEM CAUSE SOLUTION Hydraulic Side Supports Go Dirt in sequence valve Remove sequence valves and clean Down Before Or At Same thoroughly with kerosene. NOTE: Be Time As Log Turner sure to reassemble the valve and install it in its original position on the cylinder Retainer in sequence valve...
Page 130 Troubleshooting Guide Hydraulic Problems PROBLEM CAUSE SOLUTION Hydraulic Toe Boards Can be a result of shock load INITIAL CHECK "Creep" UP without the caused by improperly using To check, disconnect the toe board valve control handles being the toe boards to "cushion" hydraulic hose from its current valve operated.
Page 131 Troubleshooting Guide Hydraulic Problems PROBLEM CAUSE SOLUTION Hydraulic Toe Boards or Can be a result of shock load INITIAL CHECK Clamp "Creep" DOWN with- caused by improperly using To check, disconnect the toe board out the valve control han- the toe boards or clamp to hydraulic hose from its current valve dles being operated OR do "cushion"...
Page 132 Troubleshooting Guide Hydraulic Problems PROBLEM CAUSE SOLUTION Pump runs but makes Low fluid level Check fluid level and add fluid as nec- “growling” sound and essary. Check for leaks in the system hydraulic functions are slow, at the control box fittings, hoses and jerky or don’t work at all.
Page 133: Engine/Motor And Drive Pulleys Alignment
Troubleshooting Guide Engine/Motor and Drive Pulleys Alignment Engine/Motor and Drive Pulleys Alignment WARNING! Before performing service near moving parts such as blades, pulleys, motors, belts and chains, first turn the key switch to the OFF (#0) position and remove the key. If the key is turned on and moving parts activated, serious injury may result.
Page 134: Power Feed Variable Feed Rate Switch Test
Troubleshooting Guide Power Feed Variable Feed Rate Switch Test Power Feed Variable Feed Rate Switch Test With the feed rate dial switch all the way down, move the shaft of the dial back and forth to see if there is a jerky response. Turn the dial and move the shaft back and forth again. Repeat several times.
Page 135: Power Feed Preliminary Test
Troubleshooting Guide Power Feed Preliminary Test Power Feed Preliminary Test This test will determine if the problem is 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 136: Power Feed Mechanical Test
Troubleshooting Guide Power Feed Mechanical Test Power Feed Mechanical Test 1. Remove the weight from the track rollers. They should turn smoothly and easily with very little play. 2. Make sure the middle track cover is not bent or touching the top rail. 3.
Page 137: Hydraulic Pressure Test
Troubleshooting Guide Hydraulic Pressure Test 6.10 Hydraulic Pressure Test To check hydraulic pressure: 1. Disconnect power from the pump by moving the saw head forward until it no longer con- tacts the power strip. 2. Locate the loading arm port fitting on the hydraulic valve body. Disconnect the hydraulic hose from the fitting and install a gauge to the fitting.
Page 138 Troubleshooting Guide Hydraulic Pressure Test 3. Restore power to the pump by moving the saw head back until it contacts the power strip. 4. Operate the loading arm hydraulic lever and read the pressure on the gauge. Hydraulic pressure is factory-set at 2000 ±100 psi and should not need to be readjusted. The relief valve adjustment screw shown may be used to fine-tune the hydraulic pressure: Remove the adjustment screw nut.
Page 139: Fuse Terminal Extension Stud
Troubleshooting Guide Fuse Terminal Extension Stud 6.11 Fuse Terminal Extension Stud A fuse terminal extension stud is provided in the fuse box. The extension may be used to temporarily connect a battery charger or jumper cables to raise the saw head from the towing position so the battery box lid can be removed.
Page 140 Troubleshooting Guide Fuse Terminal Extension Stud 4. Connect the negative cable from the charger or jumper cables to a grounded metal sur- face. The mounting bolts on the bottom of the control box are an acceptable ground. 5. Charge or jump the battery until it can supply enough power to raise the saw head. 6.
Page 141: Circuit Breaker Operation
Troubleshooting Guide Circuit Breaker Operation 6.12 Circuit Breaker Operation LT30HD Rev. G6.00+ LT40HD Rev. G6.00+ Sawmill controls are equipped with manual reset circuit breakers to protect the electrical circuits. See Figure 6-5. The power feed and up/down breakers are externally mounted at the front of the control box.
Page 142: Sawmill Alignment
Routine Alignment Procedure SECTION 7 SAWMILL ALIGNMENT 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 143: Saw Head Tilt
Sawmill Alignment Routine Alignment Procedure 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, the saw head is adjusted 1/16" (1.5 mm) higher at the out- side.
Page 144 Sawmill Alignment Routine Alignment Procedure See Figure 7-2. To adjust the saw head tilt, use the horizontal adjustment nuts. To raise the outside of the saw head, loosen the four inner adjustment nuts 1/4 turn and tighten the four outer nuts. Recheck the measurement from the blade to the bed rails and adjust the horizontal adjustment nuts until the outside of the saw head is 1/16"...
Page 145: Blade Guide Arm Alignment
Sawmill Alignment Routine Alignment Procedure Blade Guide Arm Alignment The blade guide arm moves the outer blade guide in and out. If the arm becomes loose, the blade guide will not deflect the blade properly, causing inaccurate cuts. A loose blade guide arm can also cause blade vibration.
Page 146 Sawmill Alignment Routine Alignment Procedure After tightening the blade guide arm rollers, check that the arm is aligned properly. 3. With the arm adjusted 1/2" (15 mm) from fully closed, measure the distance between the blade guide roller flange and the back of the blade. See Figure 7-4.
Page 147 Sawmill Alignment Routine Alignment Procedure See Figure 7-5. To tilt the arm in toward the blade, loosen the front nuts on the outer roll- ers and tighten the rear nuts. To tilt the arm out away from the blade, loosen the rear nuts on the outer rollers and tighten the front nuts.
Page 148 Sawmill Alignment Routine Alignment Procedure See Figure 7-6. Measure from blade guide arm to bed rail with arm open and closed 3H0802-11 FIG. 7-6 7. Adjust the blade guide arm to 1/2" (15 mm) from fully open. Measure the distance from the bottom of the blade guide mounting block to the bed rail.
Page 149 Sawmill Alignment Routine Alignment Procedure See Figure 7-7. Remove the blade housing cover to access the blade guide arm roller mounting bolts. To adjust the rollers, loosen the jam nuts on the other side of the blade housing and turn the mounting bolts. To tilt the blade guide arm down, adjust the outer top and bottom rollers up.
Page 150: Blade Guide Vertical Tilt Alignment
Sawmill Alignment Routine Alignment Procedure Blade Guide Vertical Tilt Alignment The blade guides should be adjusted properly in the vertical plane. If the blade guides are tilted vertically, the blade will try to travel in the tilted direction. A Blade Guide Alignment Tool (BGAT) is provided to help you measure the vertical tilt of the blade.
Page 151 Sawmill Alignment Routine Alignment Procedure See Figure 7-9. Loosen the jam nuts on the top and bottom vertical tilt adjustment screws. To tilt the roller up, loosen the bottom screw and tighten top screw. To tilt the roller down, loosen the top screw and tighten the bottom screw. Tighten the jam nuts and recheck the tilt of the blade.
Page 152: Blade Guide Horizontal Tilt Adjustment
Sawmill Alignment Routine Alignment Procedure Blade Guide Horizontal Tilt Adjustment If the blade guides are tilted in the wrong direction horizontally, the back of the blade may contact the flange as the roller is spinning down, causing it to push the blade away from the guide roller.
Page 153 Sawmill Alignment Routine Alignment Procedure 11. Measure between the back edge of the blade and the other end of the tool ("A"). The roller should be tilted slightly to the left (’A’ 1/8" [3 mm] less than ’B’ ±1/8" [3 mm]). Sawmill Alignment HD97doc041910 7-12...
Page 154 Sawmill Alignment Routine Alignment Procedure See Figure 7-11. Loosen the jam nuts on the horizontal tilt adjustment screws. To tilt the roller left, loosen the right screw and tighten left screw. To tilt the roller right, loosen the left screw and tighten the right screw. Tighten the jam nuts and recheck the tilt of the blade.
Page 155: Blade Guide Flange Spacing
Sawmill Alignment Routine Alignment Procedure Blade Guide Flange Spacing Each blade guide must be adjusted so the roller flange is the correct distance from the back edge of the blade. If the flange is too close to or too far from the blade, the sawmill will not cut accurately.
Page 156 Sawmill Alignment Routine Alignment Procedure Loosen top and one side adjustment screw 1/16” (Inner Blade Guide) 1/8” (Outer Blade Guide) 3H0802-6D FIG. 7-12 HIGH PERFORMANCE ROLLER/BLOCK GUIDES 2. Measure the distance between the flange on the outer blade guide roller to the back edge of the blade.
Page 157: Side Support Alignment
Sawmill Alignment Routine Alignment Procedure Side Support Alignment 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 a side support down and measure between the face of the support and the main bed tube.
Page 158 Sawmill Alignment Routine Alignment Procedure See Figure 7-14. Loosen the side support mounting bolt. If the side support mounting pin is equipped with a square hole (after 6/00), use a 3/8" ratchet to rotate the pin until the side support is square to the bed. For previous side supports, use a mallet to move the side support.
Page 159: Blade Height Scale Adjustment
Sawmill Alignment Routine Alignment Procedure 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. Mea- sure 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), near the inner blade guide assembly.
Page 160: Complete Alignment Procedure
If your sawmill has a trailer axle and adjustable outriggers, adjust the outriggers as fol- lows: LT30HD: Adjust the two outriggers on the main frame tube down just enough to lift weight from the trailer tire. LT40HD: Adjust the front and third outriggers on the main frame tube down just enough to lift weight from the trailer tire.
Page 161: Blade Installation
Sawmill Alignment Complete Alignment Procedure Blade Installation 1. Remove the blade and replace the blade wheel belts. New blade wheel belts are required to perform the complete alignment procedure. 2. Blow sawdust off of the blade guide assemblies. Remove sawdust from the blade hous- ings.
Page 162: Saw Head Slide Pad Adjustment
Sawmill Alignment Complete Alignment Procedure Saw Head Slide Pad Adjustment There are eight nylon pads positioned between the saw head frame and vertical mast The spacing of the pads is factory set and rarely needs adjusting. To check the pad spac- ing, perform the following steps.
Page 163 Sawmill Alignment Complete Alignment Procedure 2. Make sure the saw head is adjusted up off the safety chain to ensure the chain is not affecting the alignment of the mast pads. 3. To adjust the spacing of the upper set of pads, lower the saw head until you can access the upper slide pad adjustment bolts.
Page 164: Blade Wheel Alignment
Sawmill Alignment Complete Alignment Procedure 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 165 Sawmill Alignment Complete Alignment Procedure LT30HD/40HD rev. H6+: See Figure 7-18. Use the vertical adjustment screws to adjust the drive-side blade wheel. To tilt the wheel up, loosen the top adjustment screw one quarter turn. Loosen the jam nut on the bottom adjustment screw and tighten the screw to 30 ft.-lbs torque. Tighten the top and bottom jam nuts.
Page 166 Sawmill Alignment Complete Alignment Procedure See Figure 7-19. 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 167 Sawmill Alignment Complete Alignment Procedure 9. Check the position of the blade on the idle-side blade wheel. See Figure 7-20. The horizontal tilt of the blade wheel should be adjusted so that the gul- let of an 1-1/4" blade is 1/8" (3 mm) out from the front edge of the wheel (±1/16 [1.5 mm]). The gullet of an 1-1/2"...
Page 168 Adjust the drive-side blade wheel if necessary. LT30HD/40HD rev. H6+: See Figure 7-22. Use the horizontal adjustment screws to adjust the drive-side blade wheel. To move the blade back on the wheel, loosen the right adjustment screw one quar- ter turn.
Page 169 Sawmill Alignment Complete Alignment Procedure LT30HD/40HD rev. G7-H5: See Figure 7-23. Use the horizontal adjustment bolts to adjust the horizontal alignment of the drive-side blade wheel. If the blade tracks too far back on the drive-side blade wheel, locate the long U-bolt on the right which mounts the bearing housing to the mounting plates.
Page 170: Track Roller Adjustment
Sawmill Alignment Complete Alignment Procedure Track Roller Adjustment Making these adjustments correctly will insure the saw carriage travels smoothly along the track and blade will remain parallel with the bed frame. 1. Using the feed controls, move the saw carriage so that the blade is positioned over the front pivot end rail.
Page 171 Sawmill Alignment Complete Alignment Procedure To adjust the bottom stop blocks (Rev. H7.00+ only): 3. Check the lower stop blocks on the bottom track rail. Make sure that the stop blocks are adjusted 1/32"-1/16" (.75mm - 1.5mm) from the track rail. Use the vertical bolts to adjust the stop blocks.
Page 172 Sawmill Alignment Complete Alignment Procedure of the blade is 17" (400 mm) above the outside of the pivot rail support by actual mea- surement with a tape or ruler. See Figure 7-26. 17" (400 mm) to blade SM0137 FIG. 7-26 8.
Page 173 Sawmill Alignment Complete Alignment Procedure See Figure 7-27. To adjust the saw head tilt, use the horizontal adjustment nuts. To raise the outside of the saw head, loosen the four inner adjustment nuts 1/2 turn then tighten the four outer nuts. To lower the outside of the saw head, loosen the four outer adjust- ment nuts 1/2 turn then tighten the inner nuts.
Page 174: Bed Rail Adjustment
15 5/16" (385 mm) from the clamp at its lowest position. LT30HD and LT40HD Rev. G1.00 - G5.02 only: 1. Move the clamp all the way out to flip the clamp down if necessary. Adjust the clamp until it is positioned 10"...
Page 175 Sawmill Alignment Complete Alignment Procedure 5. The two measurements should be 15" (375 mm) (+1/32 [0.8 mm] -0). See Figure 7-29. Loosen the locking set screws and turn the inner height adjustment nut to adjust the height of the inner end of the pivot rail. Loosen the jam nut and turn the outer adjustment bolt to adjust the height of the outer end of the pivot rail.
Page 176 Sawmill Alignment Complete Alignment Procedure See Figure 7-30. Loosen the bed rail clamping bolts and turn the adjustment bolts to move the bed rails to the blade if necessary. Retighten the clamping bolts and adjustment bolt jam nuts. Blade 15“ (375.0 mm) 15“...
Page 177: Blade Guide Installation
Complete Alignment Procedure Blade Guide Installation 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 178 Sawmill Alignment Complete Alignment Procedure Top Vertical Adjustment Jam Nut Tilt Adjustment Screws (4) Blade Guide Shaft Centered Roller Flange In Block Bottom Vertical Adjustment Jam Nut 3H0802-15 FIG. 7-31 STANDARD ROLLER GUIDES Top Vertical Adjustment Jam Nut 3H0802-16C Bottom Vertical Adjustment Jam Nut FIG.
Page 179: Blade Guide Arm Alignment
Sawmill Alignment Complete Alignment Procedure Blade Guide Arm Alignment The blade guide arm moves the outer blade guide in and out. If the arm becomes loose, the blade guide will not deflect the blade properly, causing inaccurate cuts. A loose blade guide arm can also cause blade vibration.
Page 180 Sawmill Alignment Complete Alignment Procedure After tightening the blade guide arm rollers, check that the arm is aligned properly. 3. With the arm adjusted 1/2" (15 mm) from fully closed, measure the distance between the blade guide roller flange and the back of the blade. See Figure 7-33.
Page 181 Sawmill Alignment Complete Alignment Procedure See Figure 7-34. To tilt the arm out away from the blade, loosen the front nuts on the inner rollers and tighten the rear nuts. To tilt the arm in toward the blade, loosen the rear nuts on the inner rollers and tighten the front nuts.
Page 182 Sawmill Alignment Complete Alignment Procedure See Figure 7-35. Adjust the blade guide arm to 1/2" (15 mm) from fully open. Measure the distance from the bottom of the blade guide mounting block to the bed rail. This mea- surement should be 15" (376.5 mm). If the measurements are not the same, adjust the outer rollers up or down to tilt the blade guide arm vertically.
Page 183 Sawmill Alignment Complete Alignment Procedure See Figure 7-36. Remove the blade housing cover to access the blade guide arm roller mounting bolts. To adjust the rollers, loosen the jam nuts on the other side of the blade housing and turn the mounting bolts. To tilt the blade guide arm down, adjust the outer top and bottom rollers up.
Page 184: Blade Guide Deflection
Sawmill Alignment Complete Alignment Procedure Blade Guide Deflection Perform the following steps to achieve proper blade deflection with the blade guides. 1. Raise the saw head 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 185 Sawmill Alignment Complete Alignment Procedure ment screws. The screws may shear. Top Vertical Adjustment Jam Nut 3H0802-16C Bottom Vertical Adjustment Jam Nut FIG. 7-38 2. Repeat for the other blade guide. NOTE (Standard Roller Guides Only): Be sure that the blade guide deflector rod clears the blade on both guide assemblies.
Page 186: Blade Guide Vertical Tilt Alignment
Sawmill Alignment Complete Alignment Procedure Blade Guide Vertical Tilt Alignment The blade guides should be adjusted properly in the vertical plane. If the blade guides are tilted vertically, the blade will try to travel in the tilted direction. A Blade Guide Alignment Tool (BGAT) is provided to help you measure the vertical tilt of the blade.
Page 187 Sawmill Alignment Complete Alignment Procedure See Figure 7-40. Loosen the jam nuts on the top and bottom vertical tilt adjustment screws. To tilt the roller up, loosen the bottom screw and tighten top screw. To tilt the roller down, loosen the top screw and tighten the bottom screw. Tighten the jam nuts and recheck the tilt of the blade.
Page 188: Blade Guide Horizontal Tilt Adjustment
Sawmill Alignment Complete Alignment Procedure Blade Guide Horizontal Tilt Adjustment If the blade guides are tilted in the wrong direction horizontally, the back of the blade may contact the flange as the roller is spinning down, causing it to push the blade away from the guide roller.
Page 189 Sawmill Alignment Complete Alignment Procedure 4. Measure between the back edge of the blade and the other end of the tool ("A"). The roller should be tilted slightly to the left (’A’ 1/8" [3 mm] less than ’B’ ±1/8" [3 mm]). Sawmill Alignment HD97doc041910 7-48...
Page 190 Sawmill Alignment Complete Alignment Procedure See Figure 7-42. Loosen the jam nuts on the horizontal tilt adjustment screws. To tilt the roller left, loosen the right screw and tighten left screw. To tilt the roller right, loosen the left screw and tighten the right screw. Tighten the jam nuts and recheck the tilt of the blade.
Page 191: Blade Guide Flange Spacing
Sawmill Alignment Complete Alignment Procedure Blade Guide Flange Spacing Each blade guide must be adjusted so the roller flange is the correct distance from the back edge of the blade. If the flange is too close to or too far from the blade, the sawmill will not cut accurately.
Page 192 Sawmill Alignment Complete Alignment Procedure Loosen top and one side adjustment screw 1/16” (Inner Blade Guide) 1/8” (Outer Blade Guide) 3H0802-6D FIG. 7-43 HIGH PERFORMANCE ROLLER/BLOCK GUIDES 2. Measure the distance between the flange on the outer blade guide roller to the back edge of the blade.
Page 193: Side Support Alignment
Sawmill Alignment Complete Alignment Procedure Side Support Alignment 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 a side support down and measure between the face of the support and the main bed tube.
Page 194 Sawmill Alignment Complete Alignment Procedure See Figure 7-45. Loosen the side support mounting bolt. If the side support mounting pin is equipped with a square hole (after 6/00), use a 3/8" ratchet to rotate the pin until the side support is square to the bed. For previous side supports, use a mallet to move the side support.
Page 195: Clamp Stop/Stop Bolt Adjustment
Sawmill Alignment Complete Alignment Procedure Clamp Stop/Stop Bolt Adjustment 1. Once the side supports are aligned, pivot them down to their horizontal position. 2. Tie a string to the stop block at the first bed rail. Stretch the string toward the rear of the frame and tie to the stop block at the last bed rail.
Page 196: Saw Head Tilt
Sawmill Alignment Complete Alignment Procedure 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, the saw head is adjusted 1/16" (1.5 mm) higher at the out- side.
Page 197 Sawmill Alignment Complete Alignment Procedure See Figure 7-48. To adjust the saw head tilt, use the horizontal adjustment nuts. To raise the outside of the saw head, loosen the four inner adjustment nuts 1/4 turn and tighten the four outer nuts. Recheck the measurement from the blade to the bed rails and adjust the horizontal adjustment nuts until the outside of the saw head is 1/16"...
Page 198: Blade Height Scale Adjustment
Sawmill Alignment Complete Alignment Procedure 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 carriage so the blade is positioned directly above one of the bed rails. Mea- sure 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), near the inner blade guide assembly.
Page 199: Hydraulic Information
Hydraulic Information Hydraulic Schematic SECTION 8 HYDRAULIC INFORMATION Hydraulic Schematic LT30HD Rev. G6.00+ LT40HD Rev. G6.00+ RELIEF VALVE SETTING 2000 PSI LOADER CLAMP CLAMP TOEBOARD TOEBOARD TURNER IN/OUT UP/DOWN REAR FRONT RELIEF VALVE SETTING 2250 PSI HD0138B FIG. 8-1 HYDRAULIC SCHEMATIC.
Page 200: Hydraulic Schematic
Hydraulic Information Hydraulic Schematic Hydraulic Schematic LT30HD Rev. G1.00 - G5.02 LT40HD Rev. G1.00 - G5.02 RELIEF VALVE SETTING 2000 PSI TOEBOARD TOEBOARD CLAMP TURNER LOADER ARMS FRONT REAR RELIEF VALVE SETTING 2250 PSI HD0125 FIG. 8-2 HYDRAULIC SCHEMATIC. HD97doc041910...
Page 201: Hydraulic Layout Diagram
Hydraulic Information Hydraulic Layout Diagram Hydraulic Layout Diagram LT30HD Rev. G6.00+ LT40HD Rev. G6.00+ Log Loader Clamp Clamp Turner In/Out Up/Down Side Supports Front Rear Toe Board Toe Board (Shown with handles down) HD0137D FIG. 8-3 HYDRAULIC LAYOUT DIAGRAM. Hydraulic Information...
Page 202: Rev. G6.00
Hydraulic Information Hydraulic Components Hydraulic Components LT30HD Rev. G6.00+ LT40HD Rev. G6.00+ Mfg. Part No. Manufacturer Wood-Mizer Description Part.# 017275 J-D Hydraulic Hyd. Cylinder, 3" Bore X 7" Stroke 017275 015090 J-D Hydraulic Hyd. Cylinder, 3" Bore X 7 7/8" Stroke...
Page 203: Rev. G1.00 - G5.02
Filter, Hydraulic Fluid Cartridge TABLE 8-2 Side-port valve replaces 014696 rear-port valve (LT30HD/40HD Rev. G4+). Requires larger control box with adapter plate and different fittings (see parts section for details). 015750 5GPM velocity fuse replaces P11566 2.5GPM velocity fuse suplied prior to Rev. G3.00. Use kit 015832 to upgrade previous revisions with a pair of new fittings.
Page 204: Hydraulic Hoses
27" 1/4” Log Turner Base P12535 Orange 18" 1/4” Log Turner Top 015704 Yellow 95" 1/4” Front Toe Board Top (LT30HD) P12540 117" 1/4” Front Toe Board Top (LT40HD) P12542 Gray 95" 1/4” Front Toe Board Base (LT30HD) P12540 117"...
Page 205 Hydraulic Information Hydraulic Hoses Replaces P12533 14” hose originally supplied prior to Rev. H5.00. Longer hose and elbow fitting P09142 at side support cylinder base used to eliminate kinking of hose. Front toe board hoses lengthened 4” for easier installation (7/98). Hydraulic Information HD97doc041910...
Page 206: Hydraulic Hoses
27" 1/4” Log Turner Base P12535 Orange 27" 1/4” Log Turner Top P12535 Yellow 95" 1/4” Front Toe Board Top (LT30HD) P12540 117" 1/4” Front Toe Board Top (LT40HD) P12542 Gray 95" 1/4” Front Toe Board Base (LT30HD) P12540 117"...
Page 207 INDEX alignment leveling logs lower track rollers 7-29 main bed rails 7-33 loading logs slide pad adjustment 7-29 maintenance battery blade guide charging with fuse terminal extension 6-22 blade tensioner 5-14 troubleshooting problems blade wheel belts 5-15, 5-16 brake adjustment 5-17 blade brake strap...
Page 208 safety water lube lockout procedure 2-12 operation 4-21 scale blade height operation 4-18 inch height 4-19 quarter inch 4-20 service information branch locations customer & sawmill ID general contact info setup portable sawmill stationary sawmill 3-1, 3-3 switch power feed & up/down maintenance 5-12 tensioner maintenance...

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