Wood-mizer LT70S AH Safety, Setup, Operation & Maintenance Manual
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Wood-mizer LT70S AH Safety, Setup, Operation & Maintenance Manual

Wood-mizer LT70S AH Safety, Setup, Operation & Maintenance Manual

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Wood-Mizer
Safety, Setup, Operation
& Maintenance Manual
LT70S AH
LT70M AH
Safety is our #1 concern! Read and understand all
!
safety information and instructions before operating,
setting up or maintaining this machine.
®
Sawmill
rev. B1.01
rev. B1.01
June 2002
Form #1051

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  • Page 1 ® Wood-Mizer Sawmill Safety, Setup, Operation & Maintenance Manual LT70S AH rev. B1.01 LT70M AH rev. B1.01 Safety is our #1 concern! Read and understand all safety information and instructions before operating, setting up or maintaining this machine. June 2002...

  • Page 2: Table Of Contents

    Table of Contents Section-Page SECTION 1 SAFETY & GENERAL INFORMATION Blade Handling......................1-3 Sawmill Setup......................1-4 Sawmill Operation..................... 1-5 Sawmill Maintenance ....................1-8 Belt Sizes ......................... 1-10 Blade Sizes ......................1-11 Cutting Capacity...................... 1-12 Engine/Motor Specifications ................... 1-13 1.10 Overall Dimensions ....................1-14 1.11 Chains ........................
  • Page 3 Table of Contents Section-Page SECTION 3 MAINTENANCE Wear Life........................3-1 Blade Guides ......................3-2 Sawdust Removal ...................... 3-5 Carriage Track, Wiper & Scrapers ................3-5 Vertical Mast Rails ....................3-7 Drum Switches ......................3-7 Miscellaneous ......................3-8 Drive Belt Adjustment..................... 3-10 Up/Down System.....................
  • Page 4 Table of Contents Section-Page HDSdoc051606 Table of Contents...
  • Page 5 +48-63-2626000 or +48-3912-1319. From the continental U.S., call our toll-free Parts hotline at 1-800-448-7881. Please have the vehicle identification number and your cus- tomer number ready when you call. Wood-Mizer will accept these methods of payment: Visa, Mastercard, or Select Purchase...
  • Page 6 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. V.I.N. LOCATIONS F9 017 F9 .01 V.I.N. DESCRIPTION HDSdoc050506...
  • Page 7 Each sawmill is also identified with a model number which includes the base model and the engine/motor configuration. See the figure for a description of the model number. LT70 Engine/Motor Basic Sawmill I.D. Configuration MODEL NUMBER DESCRIPTION. When you pick up your mill, you will receive a customer number. Both the VIN and your customer number expedite our service to you.

  • Page 8: Safety & General Information

    Wood-Mizer sawmill. All Wood-Mizer mill owners are encouraged to become thor- oughly familiar with these applicable laws and comply with them fully while using or tow- ing the mill.
  • Page 9 Safety & General Information Sawmill Setup Sawmill Operation Sawmill Maintenance Safety & General Information HDSdoc051606...

  • 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 mov- ing cutting head from the rest position may result in serious injury.

  • Page 12: Sawmill Operation

    Safety & General Information Sawmill Operation Sawmill 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 closed. DANGER! Always keep hands away from moving bandsaw blade.
  • Page 13 Safety & General Information Sawmill Operation operating the sawmill. Failure to do so may result in serious injury or death. WARNING! Always make sure log is clamped securely before sawing. Failure to do so may result in serious injury or death. WARNING! Always leave loading arm halfway up while log is on sawmill bed.
  • Page 14 Safety & General Information Sawmill Operation CAUTION! Move the hydraulic clamp and turner to provide maximum ground clearance before towing. Failure to do so may result in damage to the sawmill. CAUTION! Be sure to stop the blade when returning the carriage.

  • Page 15: Sawmill Maintenance

    Safety & General Information Sawmill Maintenance Sawmill Maintenance WARNING! Always secure the cutting head with a chain or a brace before adjusting the up/down chain. The cutting head may fall, causing severe injury or death. WARNING! Always secure the cutting head with a chain or a brace before removing the up/down motor belt.
  • Page 16 Safety & General Information Sawmill Maintenance CAUTION! Do not overtighten the contact set screws on the hydraulic valve assembly. Overtightening may cause the threads in the screw hole to strip. CAUTION! It is important that the lower stop bolts are prop- erly adjusted to secure the carriage on the track rail.

  • Page 17: Belt Sizes

    Safety & General Information Belt Sizes Belt Sizes See Table 1-1. Belt sizes for the LT70AC are shown below. Description Belt Size Wood-Mizer Part # Motor Drive Belt ( E25 ) 3B/HB 089464 2462La Up/Down Drive Belt HA-630 090558 Blade Pulley Belts 017922 B72.5...

  • Page 18: Blade Sizes

    Blade Sizes Blade Sizes See Table 1-2. Wood-Mizer TRU•SHARP™ offers three types of blades to provide effi- cient 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 perfor- mance.

  • Page 19: Cutting Capacity

    Safety & General Information Cutting Capacity Cutting Capacity See Table 1-3. The LT70A can accept logs as listed below. LT70AS LT70AM LT70AL Maximum Log Diameter 36,6” ( 93 cm ) 36,6” ( 93 cm ) 36,6” ( 93 cm ) 15’-11”...

  • Page 20: Engine/Motor Specifications

    TABLE 1-4 Use diesel fuel for D42. The electric motors supplied on Wood-Mizer sawmills carry a rating assigned by the motor manufacturer for the continuous duty operation of the motor, potentially, 24 hours per day, day after day. This rating is useful in sizing motors for use in applications like blowers for heating and ventilation that are never cycled off except for system maintenance.

  • Page 21: Overall Dimensions

    Safety & General Information Overall Dimensions 1.10 Overall Dimensions See Table 1-6. The overall dimensions of the LT70 sawmills with M and S frame are listed below. Model Width Weight Weight Length Width Height (Operating Position w/Trailer with Loading Arms) LT70S 21’...

  • Page 22: Components

    Safety & General Information Components 1.13 Components See Figure 1-1. The major components of the Wood-Mizer LT70 Series are shown below. Engine Drive Assembly Control Hydraulic Log Loader Optional Adjustable Trailer Axle Hydraulic Outrigger Leg Control Box w/Trailer Option FIG. 1-1...

  • Page 23: Lt70S/M Ah Hydraulic Schematic

    Safety & General Information LT70S/M AH Hydraulic Schematic 1.14 LT70S/M AH Hydraulic Schematic RELIEF VALVE SETTING 2000 PSI LOADER CLAMP CLAMP TOEBOARD TOEBOARD TURNER IN/OUT UP/DOWN REAR FRONT RELIEF VALVE SETTING 2250 PSI AC0046B FIG. 1-2 HYDRAULIC SCHEMATIC. Log Loader Clamp Clamp Turner...

  • Page 24: Lt70S/M Ah Hydraulic Components

    Safety & General Information LT70S/M AH Hydraulic Components 1.15 LT70S/M AH Hydraulic Components Mfg. Part No. Manufacturer Wood-Mizer Description Part # 015090 J-D Hydraulic 017275 Hyd. Cylinder, 3" Bore X 7 7/8" Stroke PMC-19410 Prince Mfg. 015053 Hyd. Cylinder, 1 1/2" Bore X 10" Stroke...

  • Page 25: Hydraulic Hoses

    Safety & General Information Hydraulic Hoses 1.16 Hydraulic Hoses 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 015704 Plain 27” 3/8” Log Turner Cylinder Base...
  • Page 26 Safety & General Information Hydraulic Hoses Green 1.58m 3/8” Loading Arm Branch Top 014797 (62") 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...

  • Page 27: Setup & Operation

    Setup & Operation Stationary Sawmill Setup SECTION 2 SETUP & OPERATION Stationary Sawmill Setup See Figure 2-1. 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” (16 mm) diameter anchor bolts is recommended.
  • Page 28 Setup & Operation Stationary Sawmill Setup 3830 2040 2790 LT70 S Stationary Metric Dimensions* 1790 2620 1935 70_002B 2590 2820 LT70 M Stationary Metric Dimensions* *All dimensions in millimetres FIG. 2-1 HDSdoc051606 Setup & Operation...
  • Page 29 Setup & Operation Stationary Sawmill Setup 1. Unhook the carriage safety chain, located at the bottom of the vertical mast. 2. Turn the key switch on the control panel to the accessory position. Use the up/down switch on the control panel to raise the cutting head from the carriage rest pin. Remove the locking pin and swing the rest pin down below bed level.

  • Page 30: Portable Sawmill Setup

    Setup & Operation 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 31 Setup & Operation Portable Sawmill Setup 3. Unhook the carriage safety chain, located at the bottom of the vertical mast . 4. Turn the key switch on the control panel to the accessory position. Use the up/down switch on the control panel to raise the cutting head from the carriage rest pin. Remove the locking pin and swing the rest pin down below bed level.

  • Page 32: 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 33: 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 34: Tensioning The Blade

    Setup & Operation Tensioning The Blade Tensioning The Blade Before tensioning the blade, check the air pressure gauge to see that the air tension sys- tem is properly charged. The gauge should read 50 PSI, i.e. .34 MPa (yellow colour) with the blade tension completely released.

  • Page 35: Tracking The Blade

    Setup & Operation Tracking The Blade Tracking The Blade 1. Turn the key switch to #2 position. 2. Manually spin one of the blade wheels until the blade positions itself on the blade wheels. 3. Check that if the blade is properly positioned on the blade wheels. See Figure 2-6.
  • Page 36 Setup & Operation Tracking The Blade 4. Use the cant adjustment bolt to adjust where the blade travels on the blade wheels. See Figure 2-1. DETAIL Turn bolt clockwise to move blade out on wheel; counterclockwise to move blade in on wheel Cant Adjustment Bolt (See Detail)
  • Page 37 Setup & Operation Tracking The Blade 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 closed (i.e. the safety switches located on them are engaged).

  • Page 38: Starting The Engine (Or Motor)

    Setup & Operation Starting The Engine (or Motor) Starting The Engine (or Motor) 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 39: Hydraulic Control Operation

    Setup & Operation Hydraulic Control Operation 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 40 Setup & Operation Hydraulic Control Operation 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 41: Loading, Turning, And Clamping Logs

    Setup & Operation Loading, Turning, And Clamping Logs 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 42 Setup & Operation Loading, Turning, And Clamping Logs To Turn Logs 1. Raise the turner lever to engage the log turner arm. Let the arm rise until it touches the log and starts to turn it. 2. Spin the log against the side supports until it is turned the way you want it for the first cut. If you want to turn the log more, do the following steps.
  • Page 43 Setup & Operation Loading, Turning, And Clamping Logs To Clamp Logs 1. Raise the clamp in/out lever and clamp the log against the side supports. 2. Lower the turner lever until the turner arm falls below the bed. 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 44: Up/Down Operation

    Setup & Operation Up/Down Operation 2.10 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 2.5).
  • Page 45 Setup & Operation Up/Down Operation CAUTION! DO NOT try to force the carriage above the 35" (88 cm) mark or below the 1" (2.54 cm) mark. Damage to the up/down system may result. Setup & Operation HDSdoc051606 2-19...

  • Page 46: Blade Guide Arm Operation

    Setup & Operation Blade Guide Arm Operation 2.11 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 47: Power Feed Operation

    Setup & Operation Power Feed Operation 2.12 Power Feed Operation See Figure 2-10. 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. 2-10 Carriage Feed Rate The carriage feed rate switch controls the speed at which the carriage travels forward.
  • Page 48 Setup & 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 or #2) position. This prevents accidental car- riage movement, which may cause serious injury or death. Using The Power Feed 1.

  • Page 49: Cutting The Log

    Cutting The Log 2.13 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 (#1) position.
  • Page 50 Setup & Operation Cutting The Log 10. 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 51: Edging

    Setup & Operation Edging 2.14 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 52: Optional Cutting Procedure

    Setup & Operation Optional Cutting Procedure 2.15 Optional Cutting Procedure In order to achieve maximum production rates with Super Series mills; it may be desirable to leave the blade engaged when returning the carriage. (Normal operation procedures recommend disengaging the blade before returning the carriage for maximum blade life and fuel economy.) DANGER! If leaving the blade engaged for maximum pro-...

  • Page 53: Blade Height Scale

    Setup & Operation Blade Height Scale 2.16 Blade Height Scale See Figure 2-11. 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 Quarter Indicator Scale Inch Scale...
  • Page 54 Setup & Operation Blade Height Scale you can determine the thickness of lumber you are sawing. Example: You want to cut 1" (25 mm) random width boards from a log. Position the blade for the first cut. Move the carriage to an even measurement on the inch scale. Make a trim cut.

  • Page 55: Water Lube Operation

    Setup & Operation Water Lube Operation 2.17 Water Lube Operation See Figure 2-12. 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.
  • Page 56 Setup & Operation Water Lube Operation 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. To remove water from the water valve on Super models, turn the key switch to accessory, turn the feed rate knob down to ‘0’...

  • Page 57: Preparing The Sawmill For Towing

    Preparing The Sawmill For Towing 2.18 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. 1. Move the saw carriage to the front end of the sawmill. Raise the rear outriggers.
  • Page 58 Setup & Operation Preparing The Sawmill For Towing to properly adjust the stop bolts can cause saw head dam- age, especially during mill transportation. 7. 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"...
  • Page 59 Setup & Operation Preparing The Sawmill For Towing 9. Hook the carriage safety chain located at the bottom of the carriage to the bracket at the bottom of the mast. See Figure 2-15. FIG. 2-15 CAUTION! Check to be sure the saw head safety chain is secured before towing the sawmill.

  • Page 60: Maintenance

    Maintenance Wear Life SECTION 3 MAINTENANCE This section lists the maintenance procedures that need to be performed. 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, or 1000 hours.

  • Page 61: Blade Guides

    Maintenance Blade Guides Blade Guides 1. Check the rollers for performance and wear every blade change. Make sure the rollers are clean and spinning freely. If not, rebuild them. Replace any rollers which have worn smooth or have become cone shaped. EZ-Glide Guide Blocks 2.
  • Page 62 Maintenance Blade Guides 0,2 - 0,25 mm from the blade. See Figure 3-1. To adjust the disks up, loosen the bottom guide disk mounting bolt and clamp bolt. Use the provided adjustment tool. to raise bottom disk Retighten the bottom disk mounting bolt and clamp bolt.See Section: “See Section ”...
  • Page 63 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 (part no. 033439). Throat Screw Make sure the blade screw in the top center of the C-frame is 1/16"...

  • Page 64: Sawdust Removal

    Maintenance Sawdust Removal Sawdust Removal 1. Remove the excess sawdust from the blade wheel housings and sawdust chute every blade change. 2. Remove sawdust buildup from the track rail cover. CAUTION! Failure to remove sawdust buildup from the track rail cover could result in damage to these parts when the saw head is lowered to its lowest position.
  • Page 65 Maintenance Carriage Track, Wiper & Scrapers Clean and lubricate the upper track wiper every twenty-five hours of operation. Unbolt the wiper, remove it from the sawmill, and remove any sawdust buildup. Soak the felt wiper with Dexron III transmission fluid, 10W30 motor oil or 3-in-1 turbine oil. CAUTION! Reinstall the track wiper so that it lightly touches the track rail.

  • Page 66: Vertical Mast Rails

    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 67: 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 68 Maintenance Miscellaneous 8. Make sure all safety warning decals are readable. Remove sawdust and dirt. Replace any damaged or unreadable decals immediately. Order decals from your Customer Service Representative. HDSdoc051606 Maintenance...

  • Page 69: Drive Belt Adjustment

    Maintenance Drive Belt Adjustment Drive Belt Adjustment DANGER! Never adjust the drive belts while the engine is running. Failure to do so may result in serious injury. Periodically check the drive belt for wear. Replace any damaged or worn belts as needed.

  • Page 70: Up/Down System

    Maintenance Up/Down System Up/Down System Adjust the up/down chain tension as needed. Measure chain tension with the head all the way to the top of the vertical mast. Find the chain adjusting bolt at the bottom of the mast. Use the adjustment nut to adjust the bolt until the center of the chain can be deflected 3/4”...
  • Page 71 Maintenance Up/Down System Adjustment Bolts 80_105 Mounting Bolts FIG. 3-4 Periodically check the belt for wear. Replace any damaged or worn belts as needed. 2. When oil leaks from the gear reducer please contact Customer Service. Maintenance HDSdoc051606 3-12...

  • Page 72: Power Feed

    Maintenance Power Feed 3.10 Power Feed 1. 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 73: Hydraulic System

    Maintenance Hydraulic System 3.11 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 col- lapsed. 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 74 Maintenance Hydraulic System 2. Replace the hydraulic system cartridge filter every 500 hours of operation. 3. Periodically check all hydraulic lines and fitting as needed. Replace as necessary. 3-15 HDSdoc051606 Maintenance...

  • Page 75: Troubleshooting Guide

    Troubleshooting Guide Sawing Problems SECTION 4 TROUBLESHOOTING GUIDE Sawing Problems PROBLEM CAUSE SOLUTION Blades Dull Quickly Dirty logs Clean or debark logs, espe- cially on entry side of the cut When grinding teeth, heating Grind just enough metal to too much and causing teeth to restore sharpness to the soften teeth.
  • Page 76 Troubleshooting Guide Sawing Problems PROBLEM CAUSE SOLUTION Boards Thick Or Thin On Stress in log which causes log After log has been squared, Ends Or Middle Of Board. to not lay flat on the bed. take equal cuts off opposing sides.

  • Page 77: 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 78: 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 79 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 80: Hydraulic Problems

    Troubleshooting Guide Hydraulic Problems Hydraulic Problems PROBLEM CAUSE SOLUTION You Can Actuate Any Hydrau- Carriage not positioned prop- Make sure carriage contact lic Handle, But Get No erly to provide drive signal to bracket is adjusted far enough Response From The Pump. the hydraulic control forward for battery positive contact to touch 6ft.
  • Page 81 Troubleshooting Guide Hydraulic Problems PROBLEM CAUSE SOLUTION Low fluid level Check fluid level. Add an all-season hydraulic fluid such as Amoco Rycon Oil MV or Mobil Multipurpose ATF (auto- matic transmission fluid) until level is 4 - 4 1/2" from bottom of reservoir with all cylinders retracted Pressure relief valve moved...
  • Page 82 Troubleshooting Guide Hydraulic Problems PROBLEM CAUSE SOLUTION Hydraulic Side Supports Go Dirt in sequence valve Remove sequence valves and Down Before Or At Same clean thoroughly with kero- Time As Log Turner sene. NOTE: Be sure to reas- semble the valve and install it in its original position on the cylinder Retainer in sequence valve...

  • Page 83: Engine/Motor And Drive Pulleys Alignment

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

  • Page 84: Power Feed Variable Speed Switch Test

    Troubleshooting Guide Power Feed Variable Speed Switch Test Power Feed Variable Speed 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 85: Circuit Breaker Operation

    Troubleshooting Guide Circuit Breaker Operation Circuit Breaker Operation Sawmill controls are equipped with manual reset circuit breakers to protect the electrical circuits. See Figure 4-1. The blade guide and accessory are located inside the control box. Remove the circuit breaker panel from the control box to access the internal breakers. NOTE: If the breaker is still hot, you may not be able to reset it immediately.

  • Page 86: Sawmill Alignment

    Routine Alignment Procedure: SECTION 5 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 87 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 1/26" (1 mm) higher at the outside. 1.
  • Page 88 Sawmill Alignment Routine Alignment Procedure: See Figure 5-2. To adjust the saw head tilt, use the bolts located at the bottom of the saw head mast. Loosen the three sets of four retaining plate bolts. To raise the outside of the saw head, back the stop bolts out, then tighten the adjustment bolts.
  • Page 89 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 quide the blade properly, causing inaccurate cuts. A loose blade guide arm can also cause blade vibration.
  • Page 90 Sawmill Alignment Routine Alignment Procedure: After tightening the blade guide arm rollers, check that the arm is aligned properly. Blade Guides 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. If the sawmill is equipped with optional all-ceramic guides, measure from the back of the blade to the back roller.
  • Page 91 Sawmill Alignment Routine Alignment Procedure: See Figure 5-5. Loosen the horizontal adjustment bolt jam nuts. To tilt the arm in toward the blade, loosen the right bolt and tighten the left bolt. To tilt the arm out away from the blade, loosen the left bolt and tighten the right bolt.
  • Page 92 Sawmill Alignment Routine Alignment Procedure: See Figure 5-6. Measure from bottom of the blade guide mounting block to bed rail with arm open and closed 600025-2 FIG. 5-6 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 93 Sawmill Alignment Routine Alignment Procedure: See Figure 5-7. Loosen the vertical adjustment bolt jam nuts. To tilt the blade guide arm down, loosen the rear bolt and tighten the front bolt. To tilt the blade guide arm up, loosen the front bolt and tighten the rear bolt. Retighten the jam nuts and recheck the blade guide arm vertical tilt.
  • Page 94 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 95 Sawmill Alignment Routine Alignment Procedure: See Figure 5-9. Loosen the jam nuts on the top and bottom vertical tilt adjustment Top Vertical Tilt Adjustment Screw 600034b Adjust screws down to tilt roller up; Adjust screws up to tilt roller down Bottom Vertical Tilt Adjustment Screw FIG.
  • Page 96 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 97 Sawmill Alignment Routine Alignment Procedure: The roller should be tilted slightly to the left (’A’ 1/8" [3 mm] less than ’B’ ±1/8" [3 mm]). Sawmill Alignment HDSdoc051606 5-12...
  • Page 98 Sawmill Alignment Routine Alignment Procedure: See Figure 5-11. 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 99 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 100: Horizontal Adjustment Of Side Supports

    Sawmill Alignment Horizontal Adjustment of Side Supports 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 101: Vertical Adjustment Of Side Supports

    Sawmill Alignment Vertical Adjustment of Side Supports Vertical Adjustment of Side Supports 1. Place a flat board across the bed rails. 2. Swing a side support up so that it is vertical. 3. Pull back at the top of the support to eliminate slack as if a log were being clamped against it.
  • Page 102 Sawmill Alignment Vertical Adjustment of Side Supports 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, near the inner blade guide assembly.

  • Page 103: Complete Alignment Procedure

    Sawmill Alignment Complete Alignment Procedure Complete Alignment Procedure Frame Setup Before performing the following alignment procedures, setup the mill on firm, level ground. If your sawmill is stationary, with no trailer axle, lower the feet so the weight of the sawmill is evenly supported.
  • Page 104 Sawmill Alignment Complete Alignment Procedure Blade Installation 1. Remove the blade and replace the balde 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 105 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 106 Sawmill Alignment Complete Alignment Procedure Adjust vertical adjustment screws up to tilt drive-side blade wheel down; Adjust screws down to tilt wheel up FIG. 5-17 5. Recheck the vertical tilt of the drive-side blade wheel with the blade guide alignment tool. Readjust the blade wheel as necessary until the front and rear of the tool are the same distance from the bed rail (within 1/16"...
  • Page 107 Sawmill Alignment Complete Alignment Procedure See Figure 5-18. 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 108 Sawmill Alignment Complete Alignment Procedure 9. Check the position of the blade on the idle-side blade wheel. See Figure 5-19. The horizontal tilt of the blade wheel should be adjusted so that the gul- let of a 1-1/4" blade is 1/8" (3 mm) out from the front edge of the wheel (±1/26 [1mm]).The gullet of a 1-1/2"...
  • Page 109 Sawmill Alignment Complete Alignment Procedure 600025-6B Turn cant control clockwise to move blade out on wheel; counterclockwise to move blade back on wheel Cant Control FIG. 5-20 10. Check the position of the blade on the drive-side blade wheel. The blade should be posi- tioned on the wheel as described for the idle-side blade wheel.
  • Page 110 Sawmill Alignment Complete Alignment Procedure See Figure 5-21. Use the horizontal adjustment screw to adjust the drive-side blade wheel. To move the blade back on the wheel, loosen the jam nut on the adjustment screw and tighten the screw. Tighten the jam nut. To move the blade out on the wheel, loosen the jam nut on the adjustment screw and loosen the screw.
  • Page 111 Sawmill Alignment Complete Alignment Procedure Bed Rail Adjustment 1. Open the adjustable blade guide arm to within 1/2" (15 mm) of full open. 2. Move the carriage back to the front pivot bed rail. Raise the cutting head until the bottom of the blade is 17"...
  • Page 112 Sawmill Alignment Complete Alignment Procedure See Figure 5-23. To adjust the saw head tilt, use the bolts located at the bottom of the saw head mast. Loosen the three sets of four retaining plate bolts. To raise the outside of the saw head, back the stop bolts out, then tighten the adjustment bolts.
  • Page 113 Sawmill Alignment Complete Alignment Procedure 7. Measure the distance from the top of the pivot rail to the bottom of the blade. Make this measurement at each end of the pivot rail. 8. The two measurements should be 15" (375 mm). See Figure 5-24.
  • Page 114 Sawmill Alignment Complete Alignment Procedure See Figure 5-25. 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 300 mm 300 mm +1 mm Bed Rail SM0064-2...
  • Page 115 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 116 Sawmill Alignment Complete Alignment Procedure wise to raise the top disk all the way up. Remove the bottom guide disk from each blade guide assembly and install the provided alignment bar. 3. Install each blade guide assembly to the mounting blocks and push all the way back. Install, tension and track a new blade.
  • Page 117 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 118 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 rear blade guide roller and the back of the blade. See Figure 5-28.
  • Page 119 Sawmill Alignment Complete Alignment Procedure See Figure 5-29. Loosen the horizontal adjustment bolt jam nuts. To tilt the arm in toward the blade, loosen the rear bolt and tighten the front bolt. To tilt the arm out away from the blade, loosen the front bolt and tighten the rear bolt.
  • Page 120 Sawmill Alignment Complete Alignment Procedure See Figure 5-30. 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 mm). If the measurements are not the same, adjust the blade guide arm vertically.
  • Page 121 Sawmill Alignment Complete Alignment Procedure See Figure 5-31. Loosen the vertical adjustment bolt jam nuts. To tilt the blade guide arm down, loosen the rear bolt and tighten the front bolt. To tilt the blade guide arm up, loosen the front bolt and tighten the rear bolt. Retighten the jam nuts and recheck the blade guide arm vertical tilt.
  • Page 122 Sawmill Alignment Complete Alignment Procedure Blade Guide 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. See Figure 5-32.
  • Page 123 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 124 Sawmill Alignment Complete Alignment Procedure See Figure 5-34. Loosen the jam nuts on the top and bottom vertical tilt adjustment Top Vertical Tilt Adjustment Screw 600034b Adjust screws down to tilt roller up; Adjust screws up to tilt roller down Bottom Vertical Tilt Adjustment Screw FIG.
  • Page 125 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 126 Sawmill Alignment Complete Alignment Procedure See Figure 5-36. 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 127 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 128 Sawmill Alignment Complete Alignment Procedure 3. Check the ceramic blade guide disks and drive side deflector plate are properly adjusted (See Section 5.2). Blade Guide Level Perform the following adjustments to make sure the blade guide assembly is parallel to the blade.
  • Page 129 Sawmill Alignment Complete Alignment Procedure Blade Disk Adjustment 1. Remove the blade and remove the alignment bars from the blade guide assemblies. Install new or reconditioned bottom guide disks to both blade guide assemblies (leave mounting bolts loose). Use the provided bottom disk adjustment tool to lower the bottom disk all the way down.
  • Page 130 Sawmill Alignment Complete Alignment Procedure 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 131 Sawmill Alignment Complete Alignment Procedure Vertical Adjustment of Side Supports 1. Place a flat board across the bed rails. 2. Swing a side support up so that it is vertical. 3. Pull back at the top of the support to eliminate slack as if a log were being clamped against it.
  • Page 132 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 across the face of the side supports. Loosen the clamp stop bolts and adjust the clamp stop until it touches the string. 5-47 HDSdoc051606 Sawmill Alignment...
  • Page 133 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 134 Sawmill Alignment Complete Alignment Procedure See Figure 5-43. To adjust the saw head tilt, use the bolts located at the bottom of the saw head mast. Loosen the three sets of four retaining plate bolts. To raise the outside of the saw head, back the stop bolts out, then tighten the adjustment bolts.
  • Page 135 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 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).

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