Wood-mizer LT20 B1-4 E15 SMH Page 103 User Manual Download

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Troubleshooting Guide

Sawing Problems

Troubleshooting Guide

doc063022

5-1

SECTION 5 TROUBLESHOOTING GUIDE

5.1

Sawing Problems

PROBLEM

CAUSE

SOLUTION

Blades Dull Quickly

Dirty logs

Clean or debark logs,
especially on entry side of the
cut

When grinding teeth, heating
too much and causing teeth to
soften

Grind just enough metal to
restore sharpness to the
teeth. Use water/coolant while
sharpening blade

Poor sharpening techniques

Make sure the tip is being
sharpened completely (See
Sharpener Manual)

Blades Break Prematurely

Rubber belts on blade wheels
worn to a point that blade
contacts metal pulley - look for
shiny spots on edge of wheels

Change blade wheel belts
(B-57)

Poor sharpening techniques

See Sharpener Manual

Tension too tight

Tension blade to
recommended specifications

Blade Does Not Track Right
on Drive Wheel

Cant adjustment is incorrect

Readjust

Flat/worn belts

Replace B-57 belts

Blade Guides Do Not Spin
While Cutting

Frozen bearings

Replace bearings

Stiff bearings

Grease bearings

Blade Does Not Stop
Immediately After
Disengaging

Brake strap too loose

Adjust brake strap

Drive Belts Come Off Pulleys
When Disengaging Blade

Brake strap too loose

Adjust brake strap

Brake drum misaligned

Realign on drive shaft

Brake strap tightened with one
edge too loose and one edge
too tight

Adjust brake strap

Drive Belts Wear Prematurely
or Jump

Engine/motor and drive
pulleys out of alignment

Align pulleys.

See Section 5.4

Engine/Motor and Drive
Pulleys Alignment.

Summary of Contents for LT20 B1-4 E15 SMH

Page 1: ......

Page 2: ...5 SMH rev A6 08 LT20 B1 4 D22 SMH rev A7 04 LT20 B1 4 G25 SMH rev A7 04 Safety is our 1 concern Read and understand all safety information and instructions before operating setting up or maintaining t...

Page 3: ...ill Before Operation Keep Persons Away Keep Hands Away Use Proper Maintenance Procedures Keep Safety Labels In Good Condition 1 6 Belt Sizes 1 15 1 7 Blade Sizes 1 16 1 8 Cutting Capacity 1 16 1 9 Eng...

Page 4: ...3 11 Cutting The Log 3 23 3 12 Edging 3 24 3 13 Blade Height Scale 3 25 3 14 Water Lube Operation 3 27 SECTION 4 MAINTENANCE 4 1 4 1 Wear Life 4 1 4 2 Blade Guides 4 2 4 3 Sawdust Removal 4 2 4 4 Carr...

Page 5: ...eed Chain Adjustment 6 15 6 9 Saw Head Backlash Removal 6 17 6 10 Blade Guide Arm Horizontal Adjustment 6 19 6 11 Aligning the Blade Guides 6 21 6 12 Blade Deflection 6 22 6 13 Blade Guide Vertical Ti...

Page 6: ...kg B 1301 1800 kg C 1801 2200 kg D 2201 3000kg X Stationary Product No 1 LT10 15 2 LT20 Series 4 LT40 Series 7 LT70 Series Length of the Trailer 20 20 6 m 24 24 7 m 35 35 11 m Number of axles on the...

Page 7: ...ription of the model number When you pick up your mill you will receive a customer number Both the VIN and your customer number expedite our service to you Please write these numbers below so you have...

Page 8: ...ease have your machine identification number and your customer number ready when you call The Service Representative can help you with questions about the operation and maintenance of your machine He...

Page 9: ...beiten GmbH Eichistra e 4 6353 Weggis Tel 41 413 900 312 GSM 41 799 643 594 info woodmizer ch www woodmizer ch RUSSIA Dariusz Miko ajewski OOO WOOD MIZER INDUSTRIES 141031 Moscow Reg Mytishenski raj p...

Page 10: ...iler Sitesi 191 sk No 41 ADANA Tel 90 322 346 15 86 Fax 90 322 345 17 07 GSM 90 533 363 18 44 e mail info erkaahsap com tr FINLAND Howard Blackbourn Oy Falkberg Jordbruk Ab Falkintie 220 25610 Ylonkyl...

Page 11: ...eukers Houtzagerij en Bosbouwmachines Hazenweg 5 7481 PC Haaksbergen Tel 31 535741326 Mobile 31 620419412 info woodmizer nl www woodmizer nl Subagent ROMANIA M Echert S C Echert Comprod s r l Str Schi...

Page 12: ...uctions before operating this equipment Also read any additional manufacturer s manuals and observe any applicable safety instructions including dangers warnings and cautions Always be sure that all s...

Page 13: ...ry sawmill to the floor before operating the sawmill Failure to do so may result in serious injury or death WARNING Always make sure the trailer is supporting the sawmill frame when operating a sawmil...

Page 14: ...serious injury DANGER Stay clear of the area between the trailer axle and saw carriage Failure to do so will result in serious injury DANGER Keep all persons out of the path of moving equipment and lo...

Page 15: ...d Failure to do so may result in machine damage or cause misalignment 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...

Page 16: ...spacing may vary throughout the travel of the saw head Check the pad spacing at the top and bottom ends of the mast only Pads adjusted too tight will cause premature up down motor failure CAUTION It i...

Page 17: ...izer sawmill All Wood Mizer sawmill owners are encouraged to become thoroughly familiar with these applicable laws and comply with them fully while using the machine Wear Safety Clothing WARNING Secur...

Page 18: ...dust and other debris Check Sawmill Before Operation DANGER Make sure all guards and covers are in place and secured before operating the sawmill Failure to do so may result in serious injury Keep Per...

Page 19: ...proper protective measures against rotating shafts pulleys fans etc Always stay a safe distance from rotating members and make sure that loose clothing or long hair does not engage rotating members re...

Page 20: ...the motor or sawmill Failure to do so may result in serious injury DANGER Never clean the blade or blade wheels using the hand held brush or scraper whilst the sawmill blade is in motion CAUTION Befo...

Page 21: ...or call your Customer Service Representative to order more decals IMPORTANT If replacing a component which has a safety decal affixed to it make sure the new component also has the safety decal affixe...

Page 22: ...9219 Blade tension Turning the bolt clockwise will increase the blade tension and turning the bolt counterclockwise will decrease the tension 099221 CAUTION Keep all persons a safe distance away from...

Page 23: ...formation 25doc063022 1 12 1 096316 CAUTION Do not open or close the electric box when the switch is not in the 0 position 096319 CAUTION Disconnect power supply before opening the box 512234 Clean ch...

Page 24: ...12156 Lubricate chain every 50 hours of operation or once a week 099222 CAUTION Sawdust outlet Protect eyes 096321 Blade movement direction S12004G CAUTION Always wear safety goggles when operating th...

Page 25: ...25doc063022 1 14 1 501465 CAUTION Always wear safety boots when operating the sawmill 501467 Lubrication point P11789 Aligning the blade on the wheels 510643 Setting the blade tension indicator P8507...

Page 26: ...ion S20097A 3600 r p m motor rotation direction S20097F 2925 r p m motor rotation direction Description Belt Size Wood Mizer Part Motor Drive Belt E11 E15 2BX81 014819 2 Engine Drive Belt D22 G25 2BX8...

Page 27: ...01 m Softwood Medium Hardwood Frozen Timber or Dense Hardwood 5 HP 15 HP B275IH1030 B275IH741030 B375IH929 B375IH9291 16 HP or more B376IH1030 B376IH741030 B275IH1030 B275IH741030 B376IH1030 B376IH74...

Page 28: ...le below for power supply specifications for the LT20 sawmill DANGER It is recommended that a 30mA Ground Fault Interrupter GFI be used 1 Maximum log capacity for a basic mill is 2000 Kg Model Linear...

Page 29: ...re is a relation between emission levels and exposure levels it is not possible to determine with certainty if preventives are needed or are not needed The factors affecting a current level of noise e...

Page 30: ...ee Table 1 9 The overall dimensions packed of the LT20 sawmill for transporting 1 13 Chains See Table 1 10 The load capacity of the chains is listed below Model Length Width Height LT20B1 4 E15SMH 2 1...

Page 31: ...highest root mean square value of weighted acceleration to which the whole operator s body is subjected does not exceed 0 5 m s2 Airflow 1200 m3 h 3937ft3 h Inlet diameter 100 mm 5 9 Motor power 1 5 k...

Page 32: ...Electric Motors 2 1 1 Specifications of Parts Table 1 Figure Wood Mizer Part No Description Qty LT20B3 090676 L Sawmill Saw Head 1 096726 Motor Kit 1 500795 Log Ramp Optional Equipment 2 100551 1 Sid...

Page 33: ...8 500775 1 Wide Foot adjustable leg kit 8 099728 1 Bed Extension Tube 2 087105 1 Bumper Bracket 2 091828 Bumper 1 015023 Main Tube Rear Cover 2 510230 Complete Clamp Depends on order 100903 1 Sawdust...

Page 34: ...SAWMILL ASSEMBLY Specifications of Parts 2 2 3 15doc063022 SAWMILL ASSEMBLY 091852 1 Limit Switch Bracket 1 500600 Toe Board Crank 1 Table 1...

Page 35: ...NC 32 F81003 18 BOLT M10X125 8 8 HEX HEAD ZINC 8 F81003 15 BOLT M10X75 8 8 HEX HEAD ZINC 4 F81058 1 WASHER 17 FLAT ZINC 16 F81056 1 WASHER 13 FLAT ZINC 26 F81034 2 NUT M12 8 HEX NYLON ZINC LOCK 4 F810...

Page 36: ...22 SAWMILL ASSEMBLY 2 1 3 Tools Necessary for Assembling the Sawmill Table 3 Required Tools Flat Wrench 8 1 pcs Flat Wrench 10 2 pcs Flat Wrench 13 2 pcs Flat Wrench 17 2 pcs Flat Wrench 19 2 pcs Ratc...

Page 37: ...SEMBLY 15doc063022 2 6 2 2 2 Unpacking the Sawmill IMPORTANT The machine can be lifted with a forklift only Use a forklift with lifting capacity of at least 2000kg and forks being at least 2 m in leng...

Page 38: ...n Switch the key to the M position Press the START button to start the blade motor for the moment Then stop the motor and check if the motor rotations are in accordance with the arrow on the motor cov...

Page 39: ...s from the pallet 7 Plug the power cord again turn the main power switch to the ON position Switch the key to the M position and lower the cutting head completely Then turn off power and disconnect th...

Page 40: ...rew joints without split lock washer or lock nylon nut use the LOCTITE 243 blue of average durability for screw joints 1 Mount the legs to each bed section as shown below See Figure 2 3 Non adjustable...

Page 41: ...SAWMILL ASSEMBLY 15doc063022 2 10 2 See Figure 2 5 Adjustable legs are shown below 2 Mount the bed segments together FIG 2 6 101187 1 Washer 10 5 Nut M10 Carriage Bolt M10x120 099281 1 Bolt M10x125 Wa...

Page 42: ...ere is a gap in the middle of the bar you need to screw in the adjustment bolt and tighten the mounting bolt If there is a gap at one end of the bar you need to loosen the mounting bolt and unscrew th...

Page 43: ...e is a gap in the middle of the bar or at its end you need to put wedges under segment legs frame with non adjustabe legs or adjust the legs to raise the appropriate end of the segment frame with adju...

Page 44: ...the sawmill frame See Figure 2 12 5 Align the bed extension with the sawmill frame Put the flat bar against the upper track rail and check if it touches the rail along its entire lenght If there is a...

Page 45: ...SAWMILL ASSEMBLY Bed Frame Assembly SAWMILL ASSEMBLY 15doc063022 2 14 2 See Figure 2 14 6 Mount the saw head front bumper with the bracket and the main tube cover FIG 2 15 AdjustmentBolt M16x160...

Page 46: ...MBLY Bed Frame Assembly 2 2 15 15doc063022 SAWMILL ASSEMBLY See Figure 2 16 7 Mount the rear bumper FIG 2 17 Bolt M12x35 Bumper 091828 Bumper Bracket 087105 1 Cover 015023 Bolt M8x16 Washer 8 4 Nut M1...

Page 47: ...ASSEMBLY Bed Frame Assembly SAWMILL ASSEMBLY 15doc063022 2 16 2 See Figure 2 18 8 Mount the side tube with the leg FIG 2 19 Bolt M8x25 Limit Switch Bracket 091852 1 Bumper Bracket 089712 1 Washer 8 4...

Page 48: ...2 2 17 15doc063022 SAWMILL ASSEMBLY See Figure 2 20 9 Mount the log clamp FIG 2 21 Bolt M10x75 Side Tube 100551 1 Washer 10 5 Nut M10 Lock Leg 100868 1 Bolt M12x55 Washer 13 Nut M12 Lock Carriage Bol...

Page 49: ...e Assembly SAWMILL ASSEMBLY 15doc063022 2 18 2 See Figure 2 22 10 Mount the sawdust chute See Figure 2 24 11 Mount the power cord bracket FIG 2 23 FIG 2 25 les_033_C Bolt M10x80 Nut M10 Lock Washer 10...

Page 50: ...SAWMILL ASSEMBLY Bed Frame Assembly 2 2 19 15doc063022 SAWMILL ASSEMBLY See Figure 2 26 12 Mount the log ramps optional equipment FIG 2 27 Bolt M10x50 Washer 10 5 Nut M10 Power Cord...

Page 51: ...SAWMILL ASSEMBLY Bed Frame Assembly SAWMILL ASSEMBLY 15doc063022 2 20 2 See Figure 2 28 FIG 2 29 les_036_B Log Ramps...

Page 52: ...or when it is raining snowing and in case of rain snow the sawmill must be stored under roof or indoor The sawmill can be operated in temperature range from 15o C to 40o C only The illuminance at the...

Page 53: ...ctly will ensure correct rotation directions of all sawmill motors WARNING In case of a blade or drive belt brake wait until all rotating parts are completely stop Failure to do so may result in serio...

Page 54: ...SETUP OPERATION Setting up sawmills equipped with non adjustable legs 3 3 3 doc063022 SETUP OPERATION FIG 3 1 les_009_A...

Page 55: ...r legs WARNING If it is necessary to set up the sawmill on ground with more than 3o incline dig out areas for outrigger legs to prevent the sawmill from tipping over 13 After mounting the segments tog...

Page 56: ...SETUP OPERATION Setting up sawmills equipped with outrigger legs 3 3 5 doc063022 SETUP OPERATION See Figure 3 3 FIG 3 3 OUTRIGGER PLACEMENT les069_A...

Page 57: ...ical more than 3o towards the loading ramps The mast should not be tilted in the opposite direction See Figure 3 4 Sawmill Mast Tilt 14 Unhook the carriage safety chain located at the bottom of the ve...

Page 58: ...SETUP OPERATION Sawmills with cable guide 3 3 7 doc063022 SETUP OPERATION See Figure 3 5 3 1 3 Sawmills with cable guide FIG 3 5 Side Support Bed Rail Stop Block...

Page 59: ...SETUP OPERATION Sawmills with cable guide SETUP OPERATION doc063022 3 8 3 See Figure 3 6 Install the guiding rail See Figure 3 7 FIG 3 6 9LHZ 9LHZ K 7 5 1 B0 18...

Page 60: ...SETUP OPERATION Sawmills with cable guide 3 3 9 doc063022 SETUP OPERATION FIG 3 7 9LHZ 9LHZ K 7 5 1 B0 18...

Page 61: ...from its storage position 3 Soak the felt wiper with Dexron III transmission fluid 10W30 motor oil or 3 in 1 turbine oil 4 Install the middle track cover so it fits against the rail and secure with tw...

Page 62: ...sion until the wheel is pulled in and the blade is lying loose in the blade housing Lift the blade out of the blade housing When installing a blade make sure the teeth are pointing the correct directi...

Page 63: ...ension will change Also ambient temperature changes can cause tension to change CAUTION Release the blade tension when the mill is not in use for example at the end of a shift Tension the blade again...

Page 64: ...re 3 9 to adjust where the blade travels on the blade wheels To move the blade out on the blade wheel turn the cant adjustment bolt clockwise To move the blade in on the blade wheel turn the bolt coun...

Page 65: ...t electric box Setting the phases in the phase inverter correctly will ensure correct rotation directions of all sawmill motors WARNING Make sure all guards and covers are in place and secured before...

Page 66: ...isconnect power supply and clean the inside of the electrical box of dust sawdust etc Do not operate or leave the sawmill with the electrical box door open DANGER Hazardous voltage inside the electric...

Page 67: ...supports 2 Place the log at the foot of the loading ramps Using a cant hook roll the log onto the sawmill bed NOTE Logs also may be loaded onto the mill with a forklift or other equipment specifically...

Page 68: ...022 SETUP OPERATION See Figure 3 12 3 Be sure to leave crank in the bottom position to avoid damage to the blade See Figure 3 1 4 Make sure the side supports are positioned low enough for the blade to...

Page 69: ...3 not back the clamp off slightly and push the side supports down until they are positioned below the level of your first few cuts 5 Use the toe board levers to level the log if desired To Level A Tap...

Page 70: ...side of the control panel Push the switch up to raise the cutting head push the switch down to lower the cutting head Hold the switch in position until the cutting head reaches the desired height the...

Page 71: ...mm 2 Use the blade guide toggle switch on the control panel to adjust the outer blade guide as necessary Push the switch to the left to move the arm in Push the switch to the right to move the arm out...

Page 72: ...avels forward Turn the switch clockwise to increase speed Turn it counterclockwise to reduce speed Carriage Forward and Reverse The power feed switch controls the direction in which the carriage trave...

Page 73: ...nd blade wear and also produces a wavy cut 1 1 Stop the carriage at the end of the cut by turning the carriage feed rate switch counterclockwise until the carriage stops moving 2 Using the STOP button...

Page 74: ...end of the log slow down the feed rate When the teeth exit the end of the log turn the power feed switch to the neutral position Then disengage the blade using the STOP button Remove the board that y...

Page 75: ...ainst the side supports Wider flitches should be placed to the clamp side When they are edged flip them over to edge the second side without disturbing the other flitches or without having to pull the...

Page 76: ...ber 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 Return...

Page 77: ...a second cut lower the carriage to the next mark on the scale This mark shows where the blade should be positioned to cut a certain thickness of lumber without having to measure on the inch scale Exam...

Page 78: ...oards with water Usual flow will be 1 2 gallons 3 8 7 6 liters per hour A squirt of liquid dishwashing detergent in the water bottle will help clean the blade when cutting wood with a high sap content...

Page 79: ...lling in the machine hours and the date you perform each procedure This symbol identifies the interval hours of operation at which each maintenance procedure should be performed Be sure to refer to op...

Page 80: ...cone shaped See The LT20 Parts manual for blade guide rebuild kits and complete roller assemblies See Figure 4 1 2 Make sure the blade screw in the top center of the C frame is 1 16 1 5 mm below the b...

Page 81: ...nst the rail If a track scraper needs to be adjusted loosen the thumb screw push the scraper downward until it fits firmly against the rail and retighten the thumb screw Clean and lubricate the upper...

Page 82: ...ner if equipped with a lithium grease every fifty hours of operation Lubricate the turner pivot points e g with WD 40 3 Grease the side supports with a lithium grease every 50 hours of operation 4 Oil...

Page 83: ...MAINTENANCE 25doc063022 4 5 4 4 7 Blade Tensioner 1 Grease the tensioner handle screw with a lithium grease every fifty hours of operation but at least once a week See Figure 4 3 FIG 4 3 50 20_006_B 0...

Page 84: ...e brake pads if the blade does not stop quickly unusual sounds occur when the brake is applied or a sudden change is noticed in the clutch brake lever position when the clutch is disengaged WARNING Do...

Page 85: ...MAINTENANCE Brake Pads Adjustment Gas Diesel Sawmills Only MAINTENANCE 25doc063022 4 7 4 premature wear FIG 4 4 Locking Bolts...

Page 86: ...ion specifications for your sawmill To adjust the drive belt tension 1 Raise the blade housing cover AC Sawmills 2 Loosen the four mounting bolts in the motor mount plate See the figure below 3 Loosen...

Page 87: ...Drive Belt Adjustment MAINTENANCE 25doc063022 4 9 4 4 Tighten the four mounting bolts Periodically check the belts for wear Replace if the belt is damaged or worn FIG 4 6 20_033a Mounting Bolts Adjust...

Page 88: ...rive Belt Adjustment 4 4 10 25doc063022 MAINTENANCE DC Sawmills To tighten turn the bolt clockwise to loosen turn it counterclockwise Periodically check the belts for wear Replace if the belt is damag...

Page 89: ...the chain with a 5 lbs 2 3 KG deflection force WARNING Always secure the cutting head with a chain or a brace before adjusting or inspecting the up down system The cutting head may fall causing sever...

Page 90: ...t the up down gear belt tension as needed WARNING Before adjusting always remove the key from the key switch Failure to do so may result in serious injury 4 Loosen the four set screws shown below Adju...

Page 91: ...ious injury See Figure 4 9 Loosen the locking nut To tighten the chain turn the adjusting bolt clockwise To loosen the chain turn the adjusting bolt counterclockwise Tighten the locking nut 2 If neces...

Page 92: ...gned to avoid premature V belt and pulleys wear To align the pulleys slide one of them on the shaft appropriately 3 Adjust the power feed gear belt tension as needed WARNING Remove the key from the ke...

Page 93: ...4 15 4 See Figure 4 11 Loosen the adjustment bolts shown below Adjust the belt tension and tighten the adjustment bolts 4 If the power feed chain must be replaced route a new chain as shown on the pic...

Page 94: ...MAINTENANCE Power Feed System 4 4 16 25doc063022 MAINTENANCE below FIG 4 11...

Page 95: ...tton and its circuit inspection Inspection of the control circuits with the E STOP button pressed Blade cover safety switches and their circuits inspection Motor brake and its circuit inspection 1 E S...

Page 96: ...ackward using the power feed switch Both systems should not start With E STOP button pressed try to start the debarker blade motor and move the debarker arm in and out The debarker should not work Wit...

Page 97: ...position Measure the braking time The braking time should always be shorter than 10 seconds If the braking time is longer it is necessary to adjust or replace the motor disc brake See your motor optio...

Page 98: ...ove the saw head up and down using switch and Set works buttons and forward backward using power feed switch Both systems should not start With E STOP button pressed try to start the debarker blade mo...

Page 99: ...Try to start the engine The engine should remain stopped Close the blade housing cover The engine should remain stopped 4 Blade brake and its circuit inspection Start the engine Turn the tensioner han...

Page 100: ...e top up the oil level until the oil flows out of the cylinder IMPORTANT The cylinder needs to be filled with MOBIL DTE 10 Excel 32 Hydraulic Oil WM part number P12825 IMPORTANT When topping up the oi...

Page 101: ...MAINTENANCE Filling Blade Tensioner Cylinder with Oil MAINTENANCE 25doc063022 4 23 4...

Page 102: ...MAINTENANCE Filling Blade Tensioner Cylinder with Oil 4 4 24 25doc063022 MAINTENANCE 5 Seal the oil pressure gauge with Teflon tape and screw it back...

Page 103: ...eels Change blade wheel belts B 57 Poor sharpening techniques See Sharpener Manual Tension too tight Tension blade to recommended specifications Blade Does Not Track Right on Drive Wheel Cant adjustme...

Page 104: ...just up down chain Vertical wear pads are too tight Adjust pads Drive belt s loose Adjust belts Lumber Is Not Square Vertical side supports not square to bed Adjust side supports Blade not parallel to...

Page 105: ...One phase lacks Check circuit breakers in the connectors Motor thermal protector started to work Let the motor cool and then reset the thermal protector Speed switch circuit overloaded Turn off the p...

Page 106: ...se or ground connection Check and tighten connections Nothing Works Electrically Blown fuse Replace PROBLEM CAUSE SOLUTION Power Feed Is Jerky At Low Speeds Or Does Not Move Until Speed Is Above Halfw...

Page 107: ...top block clearance from lower bed rail Allow motor to cool before restarting Chain is dragging Make sure chain is centered on cam follower bearing Clean and lubricate chain Adjust chain tension Allow...

Page 108: ...lley is within 1 8 square with the drive pulley Loosen the engine mounting bolts and rotate the engine if necessary 3 Check front to back movement of the engine does not exceed 6 5 mm 1 4 Tighten the...

Page 109: ...rollers if necessary See Section 6 18 3 Check and adjust the vertical alignment of the blade guide arm See Section 6 7 4 Check and adjust the horizontal alignment of the blade guide arm See Section 6...

Page 110: ...and apply the appropriate tension Blade tension is adjusted with the tension handle shown below Electric Sawmills 1 Turn the key switch to the H position 2 Open the blade housing cover 3 Manually spi...

Page 111: ...lf on the blade wheels Check the vertical alignment of the idle side blade wheel The gullet of the blade should ride the same distance from the front edge of the wheel at the top and bottom of the whe...

Page 112: ...djustment with the cant control is usually all that is required to track the blade properly on both blade wheels The drive side blade wheel will usually not have to be adjusted If necessary the drive...

Page 113: ...lignment of each blade wheel Attach the tool to the blade near the inner blade guide mount Be sure the tool does not rest on a tooth or burr and is lying flat against the bottom of the blade See Figur...

Page 114: ...ide 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 1 5 mm 6 Remove the tool from the...

Page 115: ...e top and bottom jam nuts 8 Recheck the vertical tilt of the idle side blade wheel with the blade guide alignment tool Readjust the blade wheel as necessary until the front and rear of the tool are th...

Page 116: ...n of the blade on the drive side blade wheel The blade should be positioned on the wheel as described for the idle side blade wheel Adjust the drive side blade wheel if necessary See Figure 6 8 Use th...

Page 117: ...SAWMILL ALIGNMENT Blade Wheel Alignment SAWMILL ALIGNMENT doc063022 6 9 6 nut FIG 6 8 Adjustment Screw 20_117 Adjustment Screw...

Page 118: ...stop bolt and adjust the adjustment nuts until the roller cannot be spun by hand Check the other roller and adjust if necessary Adjust both rollers until each evenly supports the carriage and you can...

Page 119: ...the blade is parallel 1 0 mm 0 04 to the bed rail support NOTE Adjustments of the lower track rollers change the angle between the cutting head and sawmill bed rails Only small adjustments of the lowe...

Page 120: ...T Adjusting The Lower Track Rollers 6 6 12 doc063022 SAWMILL ALIGNMENT properly adjust the stop screw can cause cutting head damage especially during mill transportation See Figure 6 11 FIG 6 11 Stop...

Page 121: ...blade at each end of the rail See Figure 6 12 3 Loosen the bed rail clamping bolts and turn the adjustment bolts to move the bed rails to the blade if necessary 4 Retighten the clamping bolts and adju...

Page 122: ...arm in the closed position is the same as the measurement from the top of the bed rail to the arm in the open position If the arm is too low in the closed position loosen the lower outside roller and...

Page 123: ...prockets must be in line see figure below If not loosen the set screws and adjust the arm motor placement Next tighten the set screws 2 Check the blade guide arm chain tension Tighten the chain if is...

Page 124: ...L ALIGNMENT See Figure 6 14 Loosen the two set screws Move the bracket with motor down to tighten the chain move it up to loosen Next tighten the set screws CAUTION Do not overtension the chain It wil...

Page 125: ...tion If necessary remove the backlash See Figure 6 15 To check if the backlash is present grasp the outside part of the saw head and move it as shown in the figure below To remove the backlash perform...

Page 126: ...t bolts evenly to remove the backlash 3 Tighten the set screws and the nuts CAUTION Do not overtighten the adjustment bolts Damage to the up down system may result FIG 6 15 FIG 6 15 Set Screws Adjustm...

Page 127: ...04 from the back of the blade when the arm is 15 mm 0 6 from full open 2 Close the throat to within 15 mm 0 6 from fully closed Check to see that the flange is the same distance from the back of the...

Page 128: ...the arm motor inward will cause the flange to move away from the blade 5 Adjusting the two outside rollers outward will cause the flange to move toward the blade 6 Adjust until the roller flange is t...

Page 129: ...e cutting head It is referred to as the outer assembly and is adjustable for various widths of materials to be processed Blade guide alignment includes four steps Blade Deflection Blade Guide Vertical...

Page 130: ...e blade guides Make sure the two set screws shown are threaded into the blade guide shaft until they touch each other See Figure 6 18 3 Loosen the bottom jam nut and tighten the top jam nut until the...

Page 131: ...t on the blade See Figure 6 19 3 Measure the distance from the bed rail to the bottom of the tool NOTE If the sawmill is equipped with stainless steel bed rail covers be sure to measure from the blade...

Page 132: ...he bed rail to the tool equals the other two measurements taken 10 Move the tool close to the other blade guide and repeat the previous steps NOTE If major adjustments to blade guide tilt were made me...

Page 133: ...guide flange is approximately 1 5 3 0 mm 0 06 0 12 from the back of the blade 2 Loosen one side and one top set screw shown Tap the blade guide forward or backward until properly positioned See Figure...

Page 134: ...the back edge of the blade and the ruler at the end closest to the inner blade guide B 4 Measure between the back edge of the blade and the other end of the ruler A 5 The roller should be tilted slig...

Page 135: ...quare to the bed to ensure square lumber 1 Swing the side support down 2 Measure between the face of the support and the main bed tube Make measurements at both ends of the side support to make sure t...

Page 136: ...back at the top of the support to eliminate slack as if a log were being clamped against it See Figure 6 24 4 Check the angle of each support with a square on the board 5 The side support should be 9...

Page 137: ...he lower track roller horizontal nuts to raise the outside of the saw head 1 5 mm 0 06 1 Move the cutting head so the blade is positioned 375 mm 14 76 above a bed rail 2 Adjust the lower track roller...

Page 138: ...SAWMILL ALIGNMENT Saw Head Tilt 6 6 30 doc063022 SAWMILL ALIGNMENT See Figure 6 26 FIG 6 26 375 mm Blade Bed Rail Sm0064 1b 375 mm 1 mm Blade Bed Rail...

Page 139: ...e bottom edge on a down set tooth of the blade to the top of the bed rail or stainless steel sleeve if applicable See Figure 6 27 2 View the blade height scale with eyes level with the indicator 3 Loo...

Page 140: ...til the run in operation of the friction surfaces has been completed After replacing the rotor run in armature plates and flanges have an increased initial rate of wear Checking the rotor thickness DA...

Page 141: ...adjust the air gap to sL rated Brake type sL rated 0 1mm 0 05mm sL max Service brake Max adjustment permissible wear Rotor thickness Excess of the adjuster nut hEmax mm min 1 mm max mm INTORQ BFK458 2...

Page 142: ...signed herewith declare that Designation of the machine SAWMILL TYPE LT20 Model Serial Number Is in conformity with the following EC directives EC Machinery Directive 2006 42 EC EC Electromagnetic Com...

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