Wood-mizer LT40 D33, LT40 DH, LT40 DH5, LT40 S DH User Manual
Wood-mizer LT40 S DH is a sawmill designed to cut logs into lumber. It is a stationary sawmill, meaning that it is not mounted on a trailer. The LT40 S DH has a number of features that make it a versatile and efficient sawmill. These features include:
- Hydraulic log handling, which makes it easy to load, turn, and clamp logs.
- A blade height scale, which allows for precise cuts.
- A water lube system, which keeps the blade cool and lubricated.
- A power feed system, which helps to move the log through the blade.
- The LT40 S DH is a powerful and versatile sawmill that is perfect for a variety of woodworking projects.
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Wood-Mizer
®
Safety, Setup, Operation
& Maintenance Manual
LT40 Series DH rev. F1.00
!
Safety is our #1 concern!
Read and understand all safety information and instructions before operating, setting up or maintaining this machine.
Form #604
This is the original language for the manual.
Sawmill and Customer Identification
Each Wood-Mizer sawmill has a 17-digit Vehicle Identification Number (VIN). See the figure below for VIN locations. See the chart for VIN description.
2
1
3
HD0133
V.I.N. LOCATIONS.
4
456 A 4 24 1 X j N A F9 017 F9 .01
V.I.N. DESCRIPTION
HDdoc012020
Each sawmill is also identified with a model number which includes the base model and the engine/motor configuration. See the figure for a description of the model number.
LT40DH
Basic Sawmill I.D.
G28
Engine/Motor
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. Please write these numbers below so you have quick, easy access to them.
Customer No.
Model No.
V.I.N.
Revision
HDdoc012020 5
1
Table of Contents
SECTION 1 SAFETY & GENERAL INFORMATION
Sawmill Maintenance .............................................................................1-5
Engine/Motor Specifications ................................................................1-19
Dust Extractor Specifications ...............................................................1-19
LT40 Series DH - Hydraulic Schematic...............................................1-26
LT40 Series DH5 Hydraulic Schematic ...............................................1-28
LT40 Series DH7 Hydraulic Schematic ...............................................1-30
LT40 Series DH - Hydraulic Components ...........................................1-32
LT40 Series DH - Hydraulic Hoses......................................................1-33
Section-Page
Stationary Sawmill Setup .......................................................................2-4
Portable Sawmill Setup ..........................................................................2-8
Middle Track Cover .............................................................................2-11
Replacing The Blade ............................................................................2-12
Tensioning The Blade...........................................................................2-12
Starting The Engine (or Motor)............................................................2-14
Hydraulic Control Operation................................................................2-18
Loading, Turning, and Clamping Logs ................................................2-21
Up/Down Operation .............................................................................2-23
Blade Guide Arm Operation.................................................................2-24
Clutch/Brake Operation........................................................................2-25
Power Feed Operation ..........................................................................2-26
Water Lube Operation ..........................................................................2-32
Preparing The Sawmill For Towing .....................................................2-33
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Table of Contents
Wear Life................................................................................................3-1
Carriage Track, Wiper & Scrapers .........................................................3-3
Brake Strap Adjustment .........................................................................3-7
Drive Belt Adjustment............................................................................3-8
Clutch Handle Adjustment ...................................................................3-11
Autoclutch Option Adjustment.............................................................3-12
Up/Down System..................................................................................3-15
Safety Devices Inspection ....................................................................3-19
Section-Page
4-1 SECTION 4 TROUBLESHOOTING GUIDE
Power Feed Problems .............................................................................4-4
Power Feed Circuit Troubleshooting......................................................4-6
Engine/Motor and Drive Pulleys Alignment..........................................4-9
Power Feed Preliminary Test ...............................................................4-10
Power Feed Mechanical Test................................................................4-10
Fuse Terminal Extension Stud..............................................................4-10
Circuit Breaker Operation ....................................................................4-11
Pre-Alignment Procedures......................................................................5-1
Blade Installation And Alignment..........................................................5-2
Saw Head Slide Pad Adjustment............................................................5-4
Adjusting The Lower Track Rollers.......................................................5-7
Adjusting Bed Rails To The Blade.........................................................5-9
Blade Guide Arm Vertical Adjustment ................................................5-13
Blade Guide Arm Horizontal Adjustment............................................5-14
Aligning the Blade Guides ...................................................................5-16
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Table of Contents
Blade Guide Vertical Tilt Adjustment..................................................5-18
Blade Guide Spacing ............................................................................5-20
Horizontal Tilt Adjustment...................................................................5-21
Blade Guide Block Adjustment............................................................5-22
Horizontal Adjustment of Side Supports..............................................5-23
Vertical Adjustment of Side Supports..................................................5-24
Clamp Stop/Stop Bolt Adjustment .......................................................5-25
Blade Height Scale Adjustment............................................................5-27
Board Return Bracket ...........................................................................5-28
Section-Page
3 SW-07doc012020Table of Contents
Safety & General Information 1
SECTION 1 SAFETY & GENERAL INFORMATION
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.
CAUTION!
refers to potentially hazardous situations which, if not avoided, may result in minor or moderate injury or damage to equipment.
Warning stripes are placed on areas where a single decal would be insufficient. To avoid serious injury, keep out of the path of any equipment marked with warning stripes.
.
Read and observe all safety instructions 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 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.
IMPORTANT!
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.
Always properly dispose of all sawing by-products, including sawdust and other debris, coolant, oil, fuel, oil filters and fuel filters.
Safety instructions are listed in this section by the following operations:
Blade Handling
Sawmill Setup
Sawmill Operation
Sawmill Maintenance
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1 Safety & General Information
Blade Handling
1.1
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. Changing blades is safest when done by one person! Keep all other persons away from area when coiling, carrying or changing a blade. Failure to do so may result in serious injury.
WARNING!
Do not spin the blade wheels by hand. Spinning the blade wheels by hand may result in serious injury.
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Safety & General Information
Sawmill Setup
1
1.2
Sawmill Setup
WARNING!
Chock the trailer wheels to prevent movement before unhitching it from the towing vehicle. Failure to do so may result in serious injury or death.
WARNING!
Failure to put front outrigger down before moving cutting head from the rest position may result in serious injury.
WARNING!
Securely fasten the feet of a stationary 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 sawmill with adjustable outriggers. Failure to do so may result in serious injury or death. The adjustable outriggers are intended to support the saw frame with assistance from the trailer.
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 outrigger legs to keep mill level. Setting up the mill on an incline could cause it to tip over, resulting in serious personal injury.
CAUTION!
Changes in temperature could cause increased pressure in the blade tensioner and loss of fluid from the gauge. Release the blade tension when the mill is not in use to avoid damage to the tensioner.
1.3
Sawmill Operation
IMPORTANT!
The sawmill is intended for sawing wood only.
for log size capacities of the machine.The sawmill must not be used for other purposes such as cutting ice, metal or any other materials.
IMPORTANT!
The operator of the sawmill should get adequate training in the operation and adjustment of the machine.
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. Use the safety retainer pin and cable to fasten blade housing covers.
DANGER! Always keep hands away from moving bandsaw blade. Failure to do so will result in 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 logs when operating sawmill or loading and turning logs. Failure to do so will result in serious injury.
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1 Safety & General Information
Sawmill Operation
DANGER! Maintain a clean and clear path for all necessary movement around the mill and lumber stacking areas. Failure to do so will result in serious injury.
DANGER! Always be sure the blade is disengaged and all persons are out of the path of the blade before starting the engine or motor. Failure to do so will result in serious injury.
DANGER! Keep all persons out of the path of returning boards. Failure to do so will result in serious injury.
WARNING!
Always disengage the clutch/brake mechanism whenever the sawmill is not cutting. Failure to do so may result in serious injury.
WARNING!
Always wear eye, ear, respiration, and foot protection when operating the sawmill. Failure to do so may result in serious injury.
WARNING!
Be sure the power feed switch is in the neutral position before turning the key switch to the on (#1) or accessory (#3) position. This prevents accidental carriage movement which may cause serious injury or death.
WARNING!
Secure all loose clothing and jewelry before operating the sawmill. Failure to do so may result in serious injury or death.
WARNING! Always make sure log is clamped securely before sawing. Failure to do so may result in serious injury or death.
WARNING!
Always leave loading arm halfway up while log is on sawmill bed. Failure to do so may result in serious injury or death.
WARNING! Use ONLY water with the water lube accessory. Never use flammable fuels or liquids. If these types of liquids are necessary to clean the blade, remove it and clean with a rag. Failure to do so may result in serious injury or death.
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.
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.
CAUTION!
Always make sure the engine is running before operating the hydraulic controls. Operating the controls without the engine running will result in power drainage from the battery. Holding the hydraulic switches halfway up or down also will cause excessive drainage from the battery.
CAUTION!
Avoid leaving hydraulic contacts engaged while machine is not being operated. Battery drainage may result!
CAUTION! Be careful when manually lowering the log loader. Do not drop the loader onto the ground or perform any action which might break the velocity fuse valves on the loader cylinders. These valves control hydraulic flow and are necessary to prevent the loading arm from collapsing during use.
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Safety & General Information
Sawmill Maintenance
1
CAUTION!
Do not try to force the saw head beyond its upper and lower travel limits. Damage to the up/down system may result.
CAUTION! Always make sure the up/down switch moves to the neutral or off position when released to ensure that the saw head stops moving. Failure to do so may result in machine damage.
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.
Failure to do so may result in severe machine damage.
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. This will not only prevent the blade from being pulled off and ruined by a wood sliver, but also will increase the life of the blade.
CAUTION!
The saw head will hit the spring-loaded ramp stops when adjusted for low cuts. Remove the loading ramps before sawing to prevent damage to the saw head and/or blade guide arm.
CAUTION!
Never clean the blade or the blade wheels with a brush or a scraper during sawmill operation.
CAUTION!
Before installation of the blade, inspect it for damage and cracks.
Use only properly sharpened blades. Always handle the blade with extreme caution. Use suitable carrier equipment for transporting the blades.
CAUTION!
Always wear gloves when handling the blade. Never grab the blade with bare hands!
CAUTION!
If the blade breaks during sawmill operation, push the EMER-
GENCY STOP button to stop the blade motor and wait 10 seconds before you open the blade housing cover.
CAUTION!
The sawmill’s work-stand should be equipped with a 4 kg or bigger dry powder extinguisher.
1.4
Sawmill Maintenance
WARNING! Always secure the cutting head with a chain or a brace before adjusting the up/down chain. The cutting head may fall, causing severe injury or death.
WARNING!
Always secure the cutting head with a chain or a brace before adjusting the mast pads. 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. The cutting head may fall, causing severe injury or death.
WARNING!
Drum switch grease contains Petroleum Hydrocarbon Lubricant.
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1 Safety & General Information
Safety Instructions
Eye and skin irritant. If introduced into eyes, flush with water for at least 15 minutes. If film or irritation persists, seek medical attention. Wash skin with soap and water. If ingested, do not induce vomiting - contact a physician.
KEEP OUT OF THE REACH OF CHILDREN.
CAUTION!
Reinstall the track wiper so that it lightly touches the track rail. If the wiper presses too firmly against the rail, it can cause the power feed to bind.
CAUTION! Never use grease on the mast rails as it will collect sawdust.
CAUTION!
Do not use chain lube. It causes sawdust buildup in chain links.
CAUTION! Do not over-tension the up/down chain. Over-tensioning may lead to early failure of the gear reducer.
CAUTION!
Do not overtighten the feed chain. Damage to the power feed motor may result.
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! Due to variations in the vertical mast, the pad 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 is important that the lower stop bolts are properly adjusted to secure the carriage on the track rail. Failure to properly adjust the stop bolts can cause saw head damage, especially during mill transportation.
CAUTION!
Pressure should not exceed 2000 psi. If it does, the amp draw will rise above the design maximum of 200 amps, and could cause battery and system problems. Pressure above 2000 p.s.i. may also damage the hydraulic hoses.
CAUTION!
Failure to remove sawdust buildup from the battery box lid and/or track rail cover could result in damage to these parts when the saw head is lowered to its lowest position.
1.5
Safety Instructions
NOTE: ONLY safety instructions regarding personal injury are listed in this section. Caution statements regarding only equipment damage appear where applicable throughout the manual.
Observe Safety Instructions
!
IMPORTANT! Read the entire Operator's Manual before operating the sawmill. Take notice of all safety warnings throughout this manual and those posted on the machine. Keep this manual with this machine at all times, regardless of ownership.
Also read any additional manufacturer’s manuals and observe any
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Safety & General Information
Observe Safety Instructions
1 applicable safety instructions including dangers, warnings, and cautions.
Only adult persons who have read and understood the entire operator's manual should operate the sawmill. The sawmill is not intended for use by or around children.
IMPORTANT!
It is always the owner's responsibility to comply with all applicable federal, state and local laws, rules and regulations regarding the ownership and operation of your Wood-Mizer sawmill. All
Wood-Mizer sawmill owners are encouraged to become thoroughly familiar with these applicable laws and comply with them fully while using the machine.
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1 Safety & General Information
Wear Safety Clothing
Wear Safety Clothing
WARNING!
Secure all loose clothing and jewelry before operating the sawmill. Failure to do so may result in serious injury or death.
WARNING! Always wear gloves and eye protection when handling bandsaw blades. Changing blades is safest when done by one person!
Keep all other persons away from area when coiling, carrying or changing a blade. Failure to do so may result in serious injury.
WARNING! Always wear eye, ear, respiration, and foot protection when operating or servicing the sawmill.
Keep sawmill And Area Around sawmill Clean
DANGER! Maintain a clean and clear path for all necessary movement around the sawmill and lumber stacking areas. Failure to do so will result in serious injury.
Dispose Of Sawing By-Products Properly
!
IMPORTANT! Always properly dispose of all sawing by-products, including sawdust 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.
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Safety & General Information
Keep Persons Away
1
Keep Persons Away
DANGER! Keep all persons out of the path of moving equipment and lumber when operating the sawmill. Failure to do so will result in serious injury.
DANGER! Always be sure all persons are out of the path of the blade before starting the motor. Failure to do so will result in serious injury.
WARNING!
Allow blade to come to a complete stop before opening the blade housing cover. Failure to do so will result in serious injury.
Keep Hands Away
DANGER! Always shut off the blade motor before changing the blade.
Failure to do so will result in serious injury.
DANGER!
Motor components can become very hot during operation.
Avoid contact with any part of a hot motor. Contact with hot motor components can cause serious burns. Therefore, never touch or perform service functions on a hot motor. Allow the motor to cool sufficiently before beginning any service function.
DANGER! Always keep hands away from moving bandsaw blade.
Failure to do so will result in serious injury.
DANGER! Always be aware of and take 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 resulting in possible injury.
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1 Safety & General Information
Use Proper Maintenance Procedures
WARNING! Use extreme caution when spinning the blade wheels by hand. Make sure hands are clear of blade and wheel spokes before spinning. Failure to do so may result in serious injury.
Use Proper Maintenance Procedures
DANGER! Make sure all electrical installation, service and/or maintenance work is performed by a qualified electrician and is in accordance with applicable electrical codes.
DANGER!
Hazardous voltage inside the electric boxes and at the motor can cause shock, burns, or death. Disconnect and lock out power supply before servicing! Keep all electrical component covers closed and securely fastened during sawmill operation.
1-10
WARNING! Consider all electrical circuits energized and dangerous.
WARNING!
Disconnect and lock out power supply before servicing the sawmill! Failure to do so may result in serious injury.
WARNING! Never assume or take the word of another person that the power is off; check it out and lock it out.
WARNING! Do not wear rings, watches, or other jewelry while working around an open electrical circuit.
WARNING!
Remove the blade before performing any service to 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!
Before installation of the blade, inspect it for damage and cracks. Use only properly sharpened blades. Always handle the blade with extreme caution. Use suitable carrier equipment for transporting
HDdoc012020 Safety & General Information
Safety & General Information
Keep Safety Labels In Good Condition
1 the blades.
CAUTION!
Always wear gloves when handling the blade. Never grab the blade with bare hands!
CAUTION!
If the blade breaks during sawmill operation, push the
EMERGENCY STOP button to stop the blade motor and wait 10 seconds before you open the blade housing cover.
CAUTION!
The sawmill’s work-stand should be equipped with a 4 kg or bigger dry powder extinguisher.
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.
IMPORTANT!
If replacing a component which has a safety decal affixed to it, make sure the new component also has the safety decal affixed.
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1 Safety & General Information
Keep Safety Labels In Good Condition
See Table 1-1. Pictogram decals used to warn and inform the user about danger in the LT40.
Decal View W-M No.
096317
TABLE 1-1
Description
CAUTION! Read thoroughly the manual before operating the machine. Observe all safety instructions and rules when operating the sawmill.
099220 CAUTION! Close all guards and covers before starting the machine.
099220
099219 Blade tension. Turning the bolt clockwise will increase the blade tension and turning the bolt counterclockwise will decrease the tension.
+
099219
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099223
Safety & General Information
Keep Safety Labels In Good Condition
1
TABLE 1-1
Blade tension - See manual.
099223
099221 CAUTION! Keep all persons a safe distance away from work area when operating the machine.
099221
098176 CAUTION! Keep away from debarker blade!
098176
099222 CAUTION! Sawdust outlet. Protect eyes!
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1 Safety & General Information
Keep Safety Labels In Good Condition
099542 CAUTION! Trailer.
099542
086099 CAUTION! Keep away - hot parts!
TABLE 1-1
086099
096321 Blade movement direction
50h
OIL
50h
512235 Clean the chain of sawdust every 50 hours of operation or once a week
512235
512157 Lubricate the chain every 50 hours of operation or once a week.
512157
S12004G CAUTION! Always wear safety goggles when operating the sawmill!
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S12005G
Safety & General Information
Keep Safety Labels In Good Condition
1
TABLE 1-1
CAUTION! Always wear protective ear muffs when operating the sawmill!
501465 CAUTION! Always wear safety boots when operating the sawmill
501467 Lubrication Point
P11789 Aligning the blade on the wheels
P85070 CE safety certification
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1 Safety & General Information
Keep Safety Labels In Good Condition
099401 Russian safety certification
TABLE 1-1
3300 RPM
S20097B
099401
S20097B 3300 RPM - Motor rotation direction
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Safety & General Information
Belt Sizes
1
1.6
Belt Sizes
See Table 1-2. Belt sizes for the LT40 Series DH are shown.
1.7
Blade Sizes
Description
Engine Drive Belt (G25)
Engine Drive Belt (D33)
Alternator Belt (G25)
Alternator Belt (D33)
Blade Pulley Belts
Belt Size
2BX72
3BX72
Wood-Mizer
Part #
P09555-2
014085
AVX 13x920 085753
6PK1080
B57
1
088181
P04185
TABLE 1-2
1
To insure proper blade tracking, use Goodyear, Dayco Super II, or
Browning belts only.
See Table 1-3. Wood-Mizer TRU•SHARP™ offers three types of blades to provide efficient sawing for all models of sawmills. The engine/motor size of your sawmill and the type of wood you saw should determine which blade you choose for optimum performance.
1
5-15HP Gas
7.4-11kW (10-15HP) Electric
16-25HP Gas
33HP Diesel
15-18.5kW (20-25HP) Electric
42HP Diesel
Softwood
B275IH1030
B275IH741030
B376IH1030
B376IH741030
B376IH1030
B376IH741030
Medium
Hardwood
B375IH929
B275IH1030
B275IH741030
B376IH1030
B376IH741030 2
B275IH1030
B275IH741030
B376IH1030
Frozen Timber or
Dense Hardwood
B375IH929
1
TABLE 1-3
1 TRU•SHARP™ “F” blades use a 9/29 profile (9° hook angle and 29° back angle) and are designed to cut frozen and/or extremely dense, hard-to-cut wood. Standard TRU•SHARP™ blades use a 10/30 profile.
2 Customer may choose preferred blade.
See The Blade Handbook for blade hook angle, tooth height, and tooth set specifications.
1.LT40 Sawmill is equipped with a blade with a length of 4.01 m.
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1 Safety & General Information
Cutting Capacity
1.8
Cutting Capacity
See Table 1-4. The log size capacities of the LT40 Series DH sawmills are listed below.
LT40 S DH
LT40 M DH
LT40 S DH with Optional 6' Bed
LT40 M DH with Optional 6' Bed
LT40 S DH with Optional 12' Bed
Extension 2
LT40 M DH with Optional 12'
LT40 S DH with Optional 24' Bed
LT40 M DH with Optional 24'
Max.
Diameter 1
Max.
36" (91.5 cm) 15' 7" (4.8 m)
36" (91.5 cm) 20' (6.1 m)
36" (91.5 cm) 22' 8" (6.9 m)
36" (91.5 cm) 27' (8.2 m)
36" (91.5 cm) 28' 8" (8.7 m)
36" (91.5 cm) 33' (10.1 m)
36" (91.5 cm) 40' 8" (12.4 m)
36" (91.5 cm) 45' (13.7 m)
TABLE 1-4
1
Maximum log capacity for a basic mill is 4400 lbs. (1996 Kg).
2
Logs over 4400 lbs. must be distributed so that neither the basic mill or extension is loaded beyond the 4400 lb. maximum weight rating.
Loading logs heavier than 4400 lbs. (1996 Kg.) on a mill equipped with bed extension requires auxiliary log handling equipment.
See Table 1-5. The performance capacity of the LT40 Series sawmills is listed below. Peak cutting rates are measured in 12” (30 cm) wide red oak and represent the capability of the sawmill only.
Rates based on using Tru-Sharp 1 1/2” x .045 blades.
Model
LT40 D33
Cutting Rate
48 ft./min. (14.6 m/min.)
TABLE 1-5
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Safety & General Information
Engine/Motor Specifications
1
1.9
Engine/Motor Specifications
See Table 1-6. The power options available for the LT40 Series DH sawmills are listed below.
Engine/Motor Type
28HP Gasoline
33HP Diesel
15HP Electric
1 Manufacturer
Kohler
Kubota
Tamel SA,
Poland
Model No.
CH745
V1505-EBB-EC-LT-
STD.1
Sg 1328-2PG
Power Other Specifications
28KM
33KM
3600 RPM, 725 cm
3
4 cylinders 1498 cm
3
11kW 22,3 A, 2950 RPM
TABLE 1-6
1
Use uleaded, minimum 87 octane fuel for G25. Use diesel fuel for D33.
See Table 1-7. The power options available of the Power Feed and Up/Down Systems for the LT40
Series DH sawmills are listed below.
Engine/Motor Type
Power Feed Motor
Up/Down Motor
Blade Guide Arm Motor
Hydraulic Pump Motor
Manufacturer
Leeson, USA
Leeson, USA
Motor Products
Owosso, USA
Iskra
Voltage
12V
12V
12V
Power
1800 RPM-600W
1800 RPM-600W
60 RPM-17W
12V 2400 RPM-1320W
WM Part #
024169
015174
P09698-1
038683
TABLE 1-7
1.10 Noise Level
See Table 1-8. The noise levels of the Wood-Mizer LT40
12
sawmills are listed below.
Sawmill Noise Level L
EX8
LT40 sawmill equipped with Diesel engine 87.7 dB (A)
TABLE 1-8
1.11 Dust Extractor Specifications
1. The noise level measurement was taken in accordance with PN-EN ISO 3746 Standard. The noise exposure level given above concerns an 8-hour work day. Value for associated uncertainty
K=4dB.
2.The measured values refer to emission levels, not necessarily to noise levels in the workplace.
Although there 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 exposure during work are inter alia room characteristics and characteristics of other noise sources, e.g. number of machines and machining operations nearby. Also, the permissible exposure level value may vary depending on country. This information enables the machine’s user to better identify hazards and a risk.
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1 Safety & General Information
Dust Extractor Specifications
See Table 1-9. Specifications of the dust extractors used on the resaw for each saw head are listed below.
1
Airflow
Inlet diameter
Motor power
Number of sacks
Sack capacity
Weight
Pressure drop
1200 m 3 /h
3937ft 3 /h
100 mm (5.9”)
1,5 kW
1 pcs
0,25 m 3 (8.8 ft) 3
110 kg (242.5 lb)
1,5 kPa (0.22 psi) 1
20 m/s
65.6 ft/s
Recommended conveying air velocity in the duct
TABLE 1-9
1 The pressure drop between the inlet of the capture device and the connection to the CADES should be maximum 1,5 kPa (for the nominal air flow rate). If the pressure drop exceeds 1,5 kPa the machine might not be compatible with conventional
CADES.
!
!
IMPORTANT! The dust extractor hoses must be grounded or made with materials not accumulating electrostatic charge.
CAUTION!
Always turn on the dust extractor before starting the machine
IMPORTANT! The total value of hand-arm vibration the operator may be exposed to does not exceed 2.5 m/s2. The highest root mean square value of weighted acceleration to which the whole operator’s body is subjected does not exceed 0.5 m/s2.
1. External chip and dust extraction equipment with fixed installations are dealt with in EN
12779:2016-04
1-20 HDdoc012020 Safety & General Information
Safety & General Information
Overall Dimensions
1
1.12 Overall Dimensions
See Table 1-10. The overall dimensions of the Wood-Mizer sawmills are listed below.
Model
LT40 S DH
LT40 M DH
Length
21’ 11"
(6.7 m)
26’ 2"
(8 m)
1 Width
6’ 6"
(2 m)
6’ 6"
(2 m)
2 With
(Operating Position with Loading Arms)
8’ 2"
(2.5 m)
8’ 2"
(2.5 m)
Height
7’ 8"
(2.4 m)
7’ 8"
(2.4 m)
3 Weight 4
3291 lbs.
(1481 kg)
3491 lbs.
(1571 kg)
Weight w/Trailer
3716 lbs.
(1672 kg)
3916 lbs.
(1762 kg)
TABLE 1-10
1
Length from hitch to chain bracket.
2
Width from fender to fender.
3
Height from ground to mast. Placing head in maximum position will add to total height.
4
Weight based on basic gas unit. Other power options may change total weight. Options such as Remote Operation and Debarker will add to total weight.
See Figure 1-1. The LT40 M dimensions is shown below.
FIG. 1-1
Safety & General Information HDdoc012020 1-21
1 Safety & General Information
Chains
See Figure 1-2. The LT40 S dimensions is shown below.
1.13 Chains
See Table 1-11. The load capacity of the chains is listed below.
Power Feed Chain
Up/Down Chain
Load Capacity According to ISO Nr 08A-1
1780N
1780N
TABLE 1-11
FIG. 1-2
1.14 Hydraulic System
See Table 1-12. The specifications of the hydraulic system are shown below.
Hydraulic Pump
Pressure Rating
Max. Pressure
#M-300-0230 Monarch
17,25MPa (2500 PSI)
19MPa (2750 PSI)
TABLE 1-12
1-22 HDdoc012020 Safety & General Information
Safety & General Information
Components
1
1.15 Components
The major components of the Wood-Mizer LT40 Series DH are shown below.
Engine Drive Assembly
HD0058
Clutch/Brake
Handle Blade Tensioner
Outer Blade Guide Arm
Control
Box
Blade Guide
Rollers
Hydraulic
Log Clamp
Side Support
Hydraulic
Log Turner
Hydraulic Toe Board
Pivot End Rail
Trailer Hitch
(W/Optional Trailer)
Hydraulic
Control Box
Adjustable
Outrigger Leg
(W/Optional Trailer)
Optional
Trailer Axle
Hydraulic Log Loader
Engine Drive Assembly
Cutting Head
Control
Box
Blade Tensioner
Safety & General Information HDdoc012020 1-23
1 Safety & General Information
Components
LT40 Series DH Hydraulic Schematic (G28&D33 Engines only)
See Figure 1-3.
C1 C2 C3 C4 C5 C6 C7 C8
V4
H13 H13
V5
RELIEF VALVE SETTING 2000 PSI
V2
V3
H1
CLAMP
IN/OUT
CLAMP
UP/DOWN
RELIEF VALVE SETTING 2250 PSI
P1
M1
TURNER
TOEBOARD
FRONT
3/8
TOEBOARD
REAR
F1
LOADER
ARM
HD0138
V1
FIG. 1-3 HYDRAULIC SCHEMATIC.
Relief valve setting 2000/2250 PSI,
Clamp In/Out,
Clamp Up/Down,
Turner,
Side Support,
Toe Board,
Front Toe Board,
Rear Toe Board,
Loader Arm.
1-24 HDdoc012020 Safety & General Information
Safety & General Information
Components
1
See Figure 1-4.
Clamp
In/Out
Clamp
Up/Down
Turner
H3
Side
Supports
Front
Toe Board
H14
Rear
Toe Board
Log Loader
H12
H8
C1
H9
H17
H16
C2
H1
M1
V1
(Shown with handles down)
P1
F1
C3
H2
V2
C4
V3
H7
H6
H4
C5 C6
H5
H10
H11
C7
V4 V5
C8
H13
H15
HD0137
FIG. 1-4 HYDRAULIC LAYOUT DIAGRAM.
Clamp In/Out,
Clamp Up/Down,
Turner,
Side Support,
Front Toe Board,
Rear Toe Board,
Log Loader,
Shown with handles down.
Safety & General Information HDdoc012020 1-25
1 Safety & General Information
LT40 Series DH - Hydraulic Schematic
1.16 LT40 Series DH - Hydraulic Schematic
See Figure 1-5.
C1 C2 C3 C4 C5 C6 C7 C8
V4
H14 H14
V5
RELIEF VALVE SETTING 2000 PSI
V2
V3
H2
H1
CLAMP
IN/OUT
CLAMP
UP/DOWN
RELIEF VALVE SETTING 2250 PSI
P1
M1
TURNER
TOEBOARD
FRONT
3/8
TOEBOARD
REAR
F1
P2
M2
LOADER
ARM
V1
HD0139C
FIG. 1-5 HYDRAULIC SCHEMATIC.
Relief valve setting 2000/2250 PSI,
Clamp In/Out,
Clamp Up/Down,
Turner,
Side Support,
Toe Board,
Front Toe Board,
Rear Toe Board,
Loader Arm.
1-26 HDdoc012020 Safety & General Information
Safety & General Information
LT40 Series DH - Hydraulic Schematic
1
See Figure 1-6.
Clamp
In/Out
Clamp
Up/Down
Turner
H4
Side
Supports
Front
Toe Board
H15
Rear
Toe Board
Log Loader
H13
H9
C1
H10
H18
H17
C2
V1
(Shown with handles down)
M1
H2
Crossflow Hose (3/8")
P1
P2
H1
M2
F1
C3
H3
V2
C4
H8
V3
H7
H5
C5 C6
H6
H11
H12
C7
V4 V5
C8
H14
H16
HD0136B
FIG. 1-6 HYDRAULIC LAYOUT DIAGRAM.
Clamp In/Out,
Clamp Up/Down,
Turner,
Side Support,
Front Toe Board,
Rear Toe Board,
Log Loader,
Shown with handles down,
Crossflow Hose (3/8”).
Safety & General Information HDdoc012020 1-27
1 Safety & General Information
LT40 Series DH5 Hydraulic Schematic
1.17 LT40 Series DH5 Hydraulic Schematic
See Figure 1-7.
1-28 HDdoc012020
FIG. 1-7
Safety & General Information
Relief valve setting 2000/2250 PSI,
Clamp In/Out,
Clamp Up/Down,
Turner,
Side Support,
Toe Board,
Toe Board Front,
Toe Board Rear,
Loader Arm,
Loader Arms,
Front Clamp Up/Down,
Front Clamp In/Out,
Rear Clamp Up/Down,
Rear Clamp In/Out.
Safety & General Information
LT40 Series DH5 Hydraulic Schematic
1
Safety & General Information HDdoc012020 1-29
1 Safety & General Information
LT40 Series DH7 Hydraulic Schematic
1.18 LT40 Series DH7 Hydraulic Schematic
See Figure 1-8.
1-30 HDdoc012020
FIG. 1-8
Safety & General Information
Relief valve setting 2000/2250 PSI,
Clamp In/Out,
Clamp Up/Down,
Turner,
Side Support,
Toe Board,
Toe Board Front,
Toe Board Rear,
Loader Arm,
Loader Arms,
Clamp Up/Down I/II/III,
Clamp In/Out I/II/III.
Safety & General Information
LT40 Series DH7 Hydraulic Schematic
1
Safety & General Information HDdoc012020 1-31
1 Safety & General Information
LT40 Series DH - Hydraulic Components
1.19 LT40 Series DH - Hydraulic Components
See Table 1-13.
ID
C1
C2
Mfg. Part No.
Wood-Mizer
Part #
088589 CJ-S96-16-70/
32/178
CJ-S169-16-4
0/22/254
088590
088679 C3 CJ-S305-16-6
3/28/203
C4 CJ-S270-16-5
0/28/152
C5, C6 CJ-S170-16-4
0/25/152
088678
088681
C7, C8 CJ-S95-16-70/
32/203
C9 CJ7F-16/40/2
2 + UE2-40W
C10 SJ2F-16-40/2
2/80
P1, P2 M300-0230
V1 HDS10/6-6
V2, V3 49004-700
V4, V5
V6
F1
MTKA.VB
S28
088680
091346
093880
P12701
015260
015484
015750
093794
P20301
Description
Hyd Cylinder, 70mm Bore X 178mm
Stroke
Hyd Cylinder, 40mm Bore X 254mm
Stroke
Hyd Cylinder, 63mm Bore X 203mm
Stroke
Hyd Cylinder, 50mm Bore X 152mm
Stroke
Hyd Cylinder, 40mm Bore x 152mm
Stroke
Hyd Cylinder, 70mm Bore X 203mm
Stroke
Hydraulic Cylinder
Hydraulic Cylinder
Hydraulic Pump, With Motor
Valve, 6-Handle
Sequence Valve
Valve, Hydraulic Velocity Fuse
Valve, MTKA.V8 Oil Flow Control
Filter, Hydraulic Fluid Cartridge
TABLE 1-13
1-32 HDdoc012020 Safety & General Information
Safety & General Information
LT40 Series DH - Hydraulic Hoses
1
1.20 LT40 Series DH - Hydraulic Hoses
ID
H1
H2
H3
H4
H5
See Table 1-14.
H6
H7
H8
H9
H10
H11
H12
H13
Color
Code
None
None
LENGTH
"A"
18"
18"
Plain 0.55m
(22")
Orange 0.69m
(27")
Yellow 3.27m
(129")
Gray
Pink
Plain
White
Dark
Orange
Purple
Black
Green
3.83m
(151")
3.27m
(129")
3.83m
(151")
3.68m
(145")
4m
(157")
3.28m
(129")
3.8m
(151")
4.2m
(166")
4.77m
(188")
4.2m
(166")
4.77m
(188")
5.2m
(204")
5.74m
(226")
5.2m
(204")
5.74m
(226")
1.58m
(62")
Application
1/4” Hydraulic Pump To Valve
1/4” Hydraulic Pump To Valve
3/8” Log Turner Cylinder Base
3/8” Log Turner Cylinder Top
1/4” Front Toe Board Top (LT40S)
1/4” Front Toe Board Top (LT40M)
1/4” Front Toe Board Base (LT40S)
1/4” Front Toe Board Base (LT40M)
3/8” Side Support Cylinder Base (LT40S)
3/8” Side Support Cylinder Base (LT40M)
3/8” Side Support Cylinder Top (LT40S)
3/8” Side Support Cylinder Top (LT40M)
3/8” Clamp Cylinder Top (LT40S)
3/8” Clamp Cylinder Top (LT40M)
3/8” Clamp Cylinder Base (LT40S)
3/8” Clamp Cylinder Base (LT40M)
1/4” Rear Toe Board Top (LT40S)
1/4” Rear Toe Board Top (LT40M)
1/4” Rear Toe Board Base (LT40S)
1/4” Rear Toe Board Base (LT40M)
3/8” Loading Arm Branch Top
Wood-Mizer
Part No.
015704
015704
014796
087775
087790
087776
087790
087776
087791
087777
087791
087777
087792
087778
087793
087779
087794
087780
087794
087780
014797
TABLE 1-14
Safety & General Information HDdoc012020 1-33
H26
H27
H28
H29
H30
H31
H32
H33
H34
H35
H19
H20
H21
H22
H23
H24
H25
H36
H37
H38
H39
1 Safety & General Information
LT40 Series DH - Hydraulic Hoses
H14 3/8” Loading Arm Branch Base
H14
H15
H16
H17
H18
Yellow
Yellow
Blue
Red
Green
Yellow
150"
236"
236"
220"
220"
15"
21"
1,50
1,50
4,00
4,00
7,70
7,70
0,40
0,40
7,00
7,00
2,50
4.34m
(171")
4.9m
(193")
4.57m
(180")
5.1m
(202")
1.6m
(63")
1.8m
(71")
4.34m
(171")
4.9m
(193")
4.57m
(180")
5.1m
(202")
157"
157"
150"
WHITE
ORANGE
RED
BLUE
WHITE
ORANGE
RED
BLUE
PLAIN
PLAIN
RED
BLUE
RED
BLUE
RED
BLUE
ORANGE
WHITE
ORANGE
WHITE
ORANGE
3/8” Loading Arm Branch Base
3/8” Loading Arm Cylinder Top (LT40S)
3/8” Loading Arm Cylinder Top (LT40M)
3/8” Loading Arm Cylinder Bottom (LT40S)
3/8” Loading Arm Cylinder Bottom (LT40M)
1/4” Clamp Up (LT40S)
1/4” Clamp Up (LT40M)
1/4” Clamp Down (LT40S)
1/4” Clamp Down (LT40M)
014798
093329
087795
087781
087795
087781
087796
087789
087796
087789
3/8" FRONT LOG CLAMP, IN/OUT CYLINDER BOTTOM (A/DH5) 094778
3/8" FRONT LOG CLAMP, IN/OUT CYLINDER TOP (A/DH5) 094778
3/8" FRONT LOG CLAMP, UP/DOWN CYLINDER BOTTOM
(A/DH5)
3/8" FRONT LOG CLAMP, UP/DOWN CYLINDER TOP (A/DH5)
094779
094779
3/8" REAR LOG CLAMP, IN/OUT CYLINDER BOTTOM (A/DH5) 094780
3/8" REAR LOG CLAMP, IN/OUT CYLINDER TOP (A/DH5)
3/8" REAR LOG CLAMP, UP/DOWN CYLINDER BOTTOM
(A/DH5)
3/8" REAR LOG CLAMP, UP/DOWN CYLINDER TOP (A/DH5)
3/8" VALVE TO OIL FLOW CONTROL VALVE (A/DH5)
094780
094781
094781
094782
087775 3/8" HYDRAULIC PUMP W/MOTOR TO OIL FLOW CONTROL
VALVE (A/DH5)
1/4" FIRST CLAMP, UP/DOWN CYLINDER BOTTOM (AH7)
1/4" FIRST CLAMP, UP/DOWN CYLINDER TOP (AH7)
1/4" SECOND CLAMP, UP/DOWN CYLINDER BOTTOM (AH7)
095211
095211
095212
095212 1/4" SECOND CLAMP, UP/DOWN CYLINDER TOP (AH7)
1/4" THIRD CLAMP, UP/DOWN CYLINDER BOTTOM (AH7)
1/4" THIRD CLAMP, UP/DOWN CYLINDER TOP (AH7)
1/4" HYDRAULIC VALVE POWER CORD TO CLAMP IN/OUT
CYLINDER T-FITTING, BOTTOM (AH7)
1/4" HYDRAULIC VALVE POWER CORD TO CLAMP IN/OUT
CYLINDER T-FITTING, TOP (AH7)
1/4" THIRD CLAMP, IN/OUT CYLINDER BOTTOM (AH7)
1/4" THIRD CLAMP, IN/OUT CYLINDER TOP (AH7)
1/4" FIRST/SECOND CLAMP, IN/OUT CYLINDER BOTTOM
(AH7)
095213
095213
095214
095214
095215
095215
095216
TABLE 1-14
1-34 HDdoc012020 Safety & General Information
H40
H41
H42
WHITE
ORANGE
WHITE
2,50
1,20
1,20
Safety & General Information
LT40 Series DH - Hydraulic Hoses
1
1/4" FIRST/SECOND CLAMP, IN/OUT CYLINDER TOP (AH7)
1/4" FIRST/SECOND CLAMP, IN/OUT CYLINDER BOTTOM
(AH7)
1/4" FIRST/SECOND CLAMP, IN/OUT CYLINDER TOP (AH7)
095216
095217
095217
TABLE 1-14
Safety & General Information HDdoc012020 1-35
2 Setup & Operation
Sawmill Setup
SECTION 2 SETUP & OPERATION
2.1
Sawmill Setup
!
IMPORTANT! Before starting to use the sawmill you have to meet the following conditions:
Set up the sawmill on firm, level ground and level the sawmill. Secure the sawmill to the ground to prevent moving during operation. A concrete foundation or pads (rated to support
31 T/m
2
at each sawmill foot position) and 16mm anchored bolts are recommended.
It is not allowed to use the sawmill indoor. When using this sawmill type outdoor it is allowed to work without sawdust collection system connected. We recommend to setup sawmill in the way that operator position be down the wind. It will separate the operator from sawdust and engine exhaust gases
The sawmill can be operated in temperature range from -15 o C to 40 o C only.
Illuminance at operator's position must be 300lx.
2-1 HDdoc012020 Setup & Operation
The sawmill operator’s position is shown below.
Setup & Operation
Sawmill Setup
2
CAUTION!
Press the emergency button located on the control box to stop the blade and the track feed motor. Turn the emergency stop clockwise to release the stop. The sawmill not restart until the emergency stop is not released.
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 serious injury
Setup & Operation HDdoc012020 2-2
2 Setup & Operation
Sawmill Setup
Tie the belts in the places shown on the picture below. The sawmill can be lifted using a forklift, a winch or a crane. The belts and the lifting equipment must be rated for at least 3000kg (6600 lb).
WARNING!
When lifting sawmill, use extreme caution and keep all persons at a safe distance. Failure to do so may result in serious injury or death. sm0378
2-3 HDdoc012020 Setup & Operation
Setup & Operation
Stationary Sawmill Setup
2
2.2
Stationary Sawmill Setup
Set up the mill on firm footing and level by eye. Fasten the mill to the floor to prevent any creep after prolonged use. A cement pad with 5/8” diameter anchor bolts is recommended. The cement pad should be rated to support 31 T/m 2 at each sawmill foot position.
NOTE: Make sure the unit is level before securing. It IS possible to twist the mill frame by jacking one foot higher than the others.
Level the sawmill by adjusting the feet to raise or lower each end of the sawmill. Adjust all feet evenly to avoid twisting the mill frame by jacking one feet higher than the others.
WARNING!
Securely fasten the feet of a stationary sawmill to the floor before operating the sawmill. Failure to do so may result in serious injury or death.
See Figure 2-1.
FIG. 2-1
Setup & Operation HDdoc012020 2-4
2 Setup & Operation
Stationary Sawmill Setup
See Figure 2-2.
FIG. 2-2
2-5 HDdoc012020 Setup & Operation
Setup & Operation
Stationary Sawmill Setup
2
See Figure 2-3.
820
825
3830
775
300
853
2040 2790
LT40S Stationary Metric Dimensions*
LT20 S Stationary Metric Dimensions*
1453 1742.6
882 1592.8
88
2082.4
LT20 M Stationary Metric Dimensions*
1500.9
20_108D
See Figure 2-4. LT S
FIG. 2-3
Setup & Operation HDdoc012020
FIG. 2-4
2-6
2 Setup & Operation
Stationary Sawmill Setup
See Figure 2-5. LT M
FIG. 2-5
See Figure 2-6. LT M Super
FIG. 2-6
1.
Unhook the carriage safety chain, located at the bottom of the vertical mast, near the battery box.
2.
Turn the key switch on the control panel to the accessory (#3) position to enable the battery-operated accessories. 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.
3.
Use the carriage forward/reverse switch (left side of control box) to move the cutting head toward the front end of the mill. 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.
4.
Raise the two side supports that will prevent a log from falling off the side of the mill when loaded.
2-7 HDdoc012020 Setup & Operation
Setup & Operation
Portable Sawmill Setup
2
See Figure 2-7.
Bed Rail
Stop Block
SM0130
FIG. 2-7
2.3
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 outrigger legs to keep mill level. Setting up the mill on an incline could cause it to tip over, resulting in serious personal injury.
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!
Always make sure the trailer is supporting the sawmill frame when operating a sawmill with adjustable outriggers. Failure to do so may result in serious injury or death. The adjustable outriggers are intended to support the saw frame with assistance from the trailer.
1.
Pull the hand brake to fix the machine.
2.
Unhitch the mill from the vehicle.
3.
Lower and set the front outriggers. Manually pull the locking pin out of the outrigger hole. When the outrigger contacts the ground, release the pin. Next place a 19 socket wrench on the outrigger adjustment bolt and turn the bolt until the locking pin enters the nearest outrigger hole.
CAUTION!
Failure to put front outrigger down before moving cutting head from the rest position may result in serious injury.
Setup & Operation HDdoc012020 2-8
2 Setup & Operation
Portable Sawmill Setup
See Figure 2-8.
Adjustment Bolt
Locking Pin
Outrigger Leg
Travel Lock Pin
FIG. 2-8. OUTRIGGER ADJUSTMENT.
CAUTION!
If setup sawmill on a boggy terrain (such as deep mud or sand) place the board or metal plate under each outrigger leg to prevent it from sinking.
2-9 HDdoc012020 Setup & Operation
Setup & Operation
Portable Sawmill Setup
2
4.
Unhook the carriage safety chain, located at the bottom of the vertical mast near the battery box.
5.
Turn the key switch on the control panel to the accessory (#3) position to enable the battery-operated accessories. 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.
WARNING!
Failure to put front outrigger down before moving cutting head from the rest position may result in serious injury.
6.
Remove the fenders by lifting them out of the slots.
CAUTION!
To prevent fender damage, remove fenders before operating sawmill or loading logs.
7.
Use the carriage forward/reverse switch (left side of control box) to move the cutting head toward the front end of the mill. Lower and set the remaining rear outriggers.
8.
Level the sawmill by adjusting the outriggers to raise or lower each end of the sawmill. Adjust all outriggers evenly to avoid twisting the mill frame by jacking one outrigger higher than the others.
Raise the two side supports to prevent the log from falling off the side of the mill when loaded.
See Figure 2-9.
Bed Rail
Stop Block
SM0130
FIG. 2-9
Setup & Operation HDdoc012020 2-10
2 Setup & Operation
Middle Track Cover
2.4
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.
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 two thumb screws.
See Figure 2-10.
3HPL01
Install the track cover and secure with two screws
CAUTION! Install the track cover so that it lightly touches the track rail. If the wiper presses too firmly against the rail, it can cause the power feed to bind.
FIG. 2-10
2-11 HDdoc012020 Setup & Operation
Setup & Operation
Replacing The Blade
2
2.5
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. Changing blades is safest when done by one person! Keep all other persons away from area when coiling, carrying or changing a blade. Failure to do so may result in serious injury.
Remove the two main blade housing covers that cover the blade wheels. Lower the hinged middle blade housing cover. Turn the blade tension handle to release the blade tension 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 direction. The teeth should be pointing toward the operator side of the mill when you are looking at the blade below the blade guides. Install the blade so it is lying around the wheels.
Position 1 1/4” wide blades on the wheels so the gullet is 1/8" (3.0 mm) out from the edge of the wheel. Position 1 1/2” wide blades on the wheels so the gullet is 3/16” (4.5 mm) out from the edge of the wheel.
Close the middle blade housing cover.
Next, turn the tension handle until the blade is tensioned correctly.
CAUTION!
Should you need to adjust the blade position, never grab the wheel arms to spin the idle-side blade wheel as your fingers can get pinched.
2.6
Tensioning The Blade
See Figure 2-11. Tension the blade by turning the hydraulic tensioning handle clockwise until the tension gauge indicates the recommended tension.
Blade Tensioner
Gauge
Blade Tensioner
Handle
SM0243
Setup & Operation HDdoc012020
FIG. 2-11
2-12
2 Setup & Operation
Tracking The Blade
See Table 2-1. The recommended tension for different blades is shown below.
Blade Type
B375IH929
B275IH1030
B275IH741030
Acceptable Range
12,4 - 14,5 MPa (1800 - 2100 psi)
14,5 - 16,5 MPa (2100 - 2400 psi)
14,5 - 16,5 MPa (2100 - 2400 psi)
Ideal Tension
13,8 MPa (2000 psi)
15,9 MPa (2300 psi)
15,9 MPa (2300 psi)
TABLE 2-1
The tension gauge should be checked occasionally when adjusting the cant control or while cutting. Ambient temperature changes will cause tension to change. Adjust the tension handle as necessary to maintain the recommended tension level.
CAUTION!
Changes in temperature could cause increased pressure in the blade tensioner and loss of fluid from the gauge.
CAUTION!
Release the blade tension when the mill is not in use (for example at the end of a shift). Tension the blade again before starting the motor.
2.7
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 (or motor).
3.
Pull lightly on the clutch handle, rotating the blade until the blade positions itself on the wheels.
WARNING!
Do not spin the blade wheels by hand. Spinning the blade wheels by hand may result in serious injury.
4.
Release the clutch handle to stop the blade. Turn off the engine, remove the key and check the position of the blade on the blade wheels.
2-13 HDdoc012020 Setup & Operation
Setup & Operation
Starting The Engine (or Motor)
2
See Figure 2-12. Position 1 1/4” wide blades so the gullet is 3.0 mm (0.12”) out from the edge of the blade wheel (± 1.0 mm [0.04”]). Position 1 1/2” blades so the gullet is 4.5 mm (0.18”) out from the edge of the blade wheel (± 1.0 mm [0.04”]).
SM0044D
3.0 mm (0.12”)
± 1 mm (0.04”)
1 1/4"
Blade
4.5 mm (0.18”)
± 1 mm (0.04”)
1 1/2"
Blade
FIG. 2-12
5.
To adjust where the blade travels on the blade wheels, use the cant control shown in
If the blade is too far out, back the blade onto the wheel by turning the cant control counterclockwise. If the blade is too far in, turn the cant control clockwise until the gullet of the blade is the correct distance from the front edge of the wheel.
6.
Retension the blade to the recommended tension to compensate for any adjustments you have made in the cant control.
7.
Replace the 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.
Be sure the blade housing and pulley covers are in place and secure. Use the safety retainer pin and cable to fasten blade housing covers.
IMPORTANT!
After aligning the blade on the wheels, always double-check the blade guide spacing and location. (See Section 5 for more information.)
2.8
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.
Be sure the blade housing and pulley covers are in place and secure. Use the safety retainer pin and cable to fasten blade housing covers.
DANGER!
Always be sure the blade is disengaged and all persons are out of the path of the blade before starting the engine or motor. Failure to do so
Setup & Operation HDdoc012020 2-14
2 Setup & Operation
Starting The Engine (or Motor)
will result in serious injury.
WARNING!
Always wear eye, ear, respiration, and foot protection when operating the sawmill. Failure to do so may result in serious injury.
WARNING!
Be sure the power feed switch is in the neutral position before turning the key switch to the on (#1) or accessory (#3) position. This prevents accidental carriage movement. which may cause serious injury or death.
CAUTION!
If at any time you need to immediately stop the blade motor, press the emergency stop button located on the control box.
2-15 HDdoc012020 Setup & Operation
Setup & Operation
Board Return
2
2.9
Board Return
WARNING!
The automatic board return is intended to assist a second operator in removing boards quickly. Do not use the board return when operating the sawmill alone. Serious injury, death or damage to the equipment may result.
WARNING!
Never use the board return table as a platform to stand on. This table is designed and intended to assist in the removal of boards only.
Standing on the table may result in serious injury.
Sawmills can be equipped with a board return system. This system consists of an arm on the saw head controlled by a toggle switch on the control panel. A board return table is also provided to catch the board as it is removed from the log .
See Figure 2-13.
3h0433
FIG. 2-13
To activate the board return, turn the key switch to the accessory (#3) or start (#1) position. Push the toggle switch on the control panel down. The board return arm located in the middle of the saw head will drop into position.
Setup & Operation HDdoc012020 2-16
2 Setup & Operation
Board Return
See Figure 2-14.
3H0363
FIG. 2-14
When the blade reaches the end of the log, the arm will drop down to catch the board and drag it back toward the operator as the saw head is returned.
DANGER!
Keep all persons out of the path of returning boards. Failure to do so will result in serious injury.
Boards may not always return in the same path or location. If a board returns in a manner that does not allow the sawyer or off-bearer to maintain control, it may be necessary to stop the reverse motion of the saw head.
When the board return is to be used, a second person is required to remove the board as it is returned. DO
NOT attempt to use the board return feature when sawing alone.
To bypass the board return feature, push the toggle switch on the control panel up.
2-17 HDdoc012020 Setup & Operation
Setup & Operation
Hydraulic Control Operation
2
2.10 Hydraulic Control Operation
The hydraulic control levers become operational when the contacts at the bottom of the carriage touch the power strip on the frame tube. The hydraulic control levers will only work when the cutting head is close enough to the front end of the mill to touch the power strip.
See Figure 2-15. DH3 hydraulic units have six control levers to load, clamp, turn and level logs. DH5 and DH7 hydraulic units have four additional levers for controlling the Pull-Down clamps. In sawmills equipped with DH5 hydraulic system, individual Pull-Down clamps are controlled with separate levers. In sawmills with DH7 hydraulic system, in/out movement of individual clamps is controlled with the same lever and up/down movement of individual clamps is controlled with separate levers.
DH5 and DH7 hydraulic control boxes are equipped with an oil flow control valve.
Clamp In/Out
Clamp Up/Down
Turner
Front Toeboard
Rear Toeboard
Loader
Setup & Operation HDdoc012020
FIG. 2-15
2-18
2 Setup & Operation
Hydraulic Control Operation
See Figure 2-16. Clamping cants on sawmills equipped with DH5 hydraulic system
HD0185
A/DH3
Front
Clamp
Front
Clamp
In/Out
Rear
Clamp
Rear
Clamp
In/Out
FIG. 2-16
See Figure 2-17. Clamping cants on sawmills equipped with DH7 hydraulic system
094970
HD0186
A/DH3
Clamp
I/II/III
In/Out
Clamp
I
Up/Down
Clamp
II
Up/Down
Clamp
III
Up/Down
FIG. 2-17
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. Failure to do so will result in serious injury.
2-19 HDdoc012020 Setup & Operation
Setup & Operation
Hydraulic Control Operation
2
CAUTION!
Always make sure the engine is running before operating the hydraulic controls. Operating the controls without the engine running will result in power drainage from the battery. Holding the hydraulic switches halfway up or down also will cause excessive drainage from the battery.
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 sawmill.
Lower the clamp up/down lever to lower the clamp below bed level.
2.
Raise the log loader lever to extend the legs of the log loader out as far as they will go.
3.
The chain securing the log loading arm to the log turner arm will be tight. Raise the log turner lever to raise the turner arm until there is slack in the chain.
4.
Unchain the loading arm from the turner arm.
5.
Lower the turner lever to completely lower the turner arm. Notice that after the turner arm is all the way down, the side support braces will begin to lower. Release the turner lever after the turner arm is lowered, but before the side supports begin to lower. This stops the log being loaded from damaging the turner and/or falling off the side of the sawmill.
6.
When raising the turner lever, the side supports rise first. After reaching a fully vertical position, the turner arm will engage and start to rise.
7.
Manually lower the log loader so the legs rest on the ground.
CAUTION!
Be careful when manually lowering the log loader. Do not drop the loader onto the ground or perform any action which might break the velocity fuse valves on the loader cylinders. These valves control hydraulic flow and are necessary to prevent the loading arm from collapsing during use.
8.
Lower the loader lever to lower the loading arm as far as it will go. Logs must be rolled onto the loading arm one at a time for loading onto the bed of the mill.
9.
The front and rear toe boards should be below bed level. Once a tapered log has been loaded, the front or rear end of the log may be lifted to parallel the heart of the log to the path of the blade.
The front toe board is raised by lifting the front toe board lever up. The rear toe board is raised by lifting the rear toe board lever up. Once a flat has been made and the log is ready to be turned, push the appropriate toe board lever down to lower either toe board until it falls below the level of the bed.
Setup & Operation HDdoc012020 2-20
2 Setup & Operation
Loading, Turning, and Clamping Logs
2.11 Loading, Turning, and Clamping Logs
CAUTION! Be sure the pivot rails, turning arm, clamp, and toe boards are below bed level before loading a log onto the bed. Failure to do so may result in machine damage or cause misalignment.
To Load Logs
1.
Move a log up to the loading arm. Use cant hooks or loading equipment to move the logs to the foot of the loading arms.
2.
Roll the log onto the loader so that it is approximately centered with the sawmill bed. The log turner will operate much easier if the log is centered on the sawmill bed.
3.
Raise the loader lever to raise the log onto the sawmill bed. Simply let the loader rise until the log rolls onto the mill bed.
4.
Lower the loading arm. Leave the loading arm about halfway up while squaring the log. This will stop the log from rolling off the side of the mill.
WARNING!
Always leave loading arm halfway up while log is on sawmill bed. Failure to do so may result in serious injury or death.
NOTE: Logs also may be loaded onto the mill with a tractor or other equipment specifically designed for that purpose.
5.
Raise the clamp up to prevent the log from rolling of the bed.
6.
Raise the clamp up/down lever.
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.
3.
Engage the clamp by raising the clamp in/out lever. Clamp the log against the side supports.
4.
Lower the turner lever to lower the turner arm below the log.
5.
Raise the turner arm to get a new bite on the log.
6.
Disengage the clamp.
7.
The log can be turned now. Repeat steps 4 through 7 until the log is turned as desired.
2-21 HDdoc012020 Setup & Operation
Setup & Operation
Loading, Turning, and Clamping Logs
2
To Turn Logs (Optional Procedure For Hydraulic Mills Except Only)
If you are turning a small cant on a Super Series mill, you may opt to use the clamp to turn the cant.
1.
Lower the clamp up/down lever to lower the clamp below bed level.
2.
Raise the clamp in/out lever to move the clamp in, beneath the edge of the cant.
3.
Raise the clamp up/down lever to raise the clamp and flip the cant.
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.
To Level A Tapered Log
Use the toe board lever(s) to raise either end of a tapered log, if desired.
Raise the appropriate lever to raise the front or rear toe board until the heart of the log measures the same distance from the bed rails at each end of the log.
Pull-Down Clamps
When a cant is being cut, internal stress in the wood may cause the cant to deform slightly. The cant with internal stress tends to raise on ends. To prevent this, use two additional Pull-Down clamps. These clamps are mounted at both bed frame ends and if necessary hold the cant down so it lies flat on the bed.
Setup & Operation HDdoc012020 2-22
2 Setup & Operation
Up/Down Operation
2.12 Up/Down Operation
1.
Install a blade, if needed, and check for correct blade tension.
).
2.
Set the cutting head to the desired height. (The blade height scale shows the height of the blade above the bed rails.)
See Figure 2-18. The up/down switch is located on the far right 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, then release.
Cutting Head
UP
Cutting Head
DOWN
3H0278b1
FIG. 2-18
The up/down switch is designed to return to the neutral or "off" position when released. If the switch remains engaged, manually move the switch to the neutral or "off" position. Repair the up/down drum switch ( See Section 4.2
).
CAUTION!
Always make sure the up/down switch moves to the neutral or
“off” position when released to ensure that the saw head stops moving. Failure to do so may result in machine damage.
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.
2-23 HDdoc012020 Setup & Operation
Setup & Operation
Blade Guide Arm Operation
2
2.13 Blade Guide Arm Operation
1.
Look down the length of the log to see its maximum width. The outer blade guide should be adjusted to clear the widest section of the log by less than 1" (25.4 mm).
2.
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.
See Figure 2-19.
Blade Guide Arm
OUT
IN
3H0279b1
FIG. 2-19
3.
Use the blade guide toggle switch to readjust the outer blade guide as you are cutting in order to keep the guide within 1" (2.5 cm) of the log. Be sure to adjust the arm back out before returning the carriage.
Setup & Operation HDdoc012020 2-24
2 Setup & Operation
Clutch/Brake Operation
2.14 Clutch/Brake Operation
1.
Clear any loose objects from the area of the blade, motor, and drive belt.
2.
Make sure the clamp and side supports are adjusted below the level of your first few cuts.
3.
Start the engine or motor as instructed in the engine manual.
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. Use the safety retainer pin and cable to fasten blade housing covers.
Be sure the blade housing and pulley covers are in place and secure before starting the engine or motor. Use the safety retainer pin and cable to fasten blade housing covers.
See Figure 2-20. The clutch/brake lever is located next to the engine.
Push lever up to disengage blade
Pull lever down to engage blade
3H0367
FIG. 2-20
2-25 HDdoc012020 Setup & Operation
Setup & Operation
Power Feed Operation
2
4.
To engage the blade, pull the lever down until it locks in the down position. This engages the drive mechanism, releases the blade brake, and increases the engine speed to full throttle.
To disengage the blade, raise the clutch/brake lever to the up position. This disengages the drive belt, engages the blade brake, and returns the engine to idle.
2.15 Power Feed Operation
See Figure 2-21. 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
3H0280a1
FIG. 2-21
Carriage Feed Rate
The carriage feed rate switch controls the speed at which the carriage travels forward. Turn the switch clockwise to increase speed. Turn it counterclockwise to reduce speed.
Carriage Forward and Reverse
The carriage forward/reverse switch controls the direction in which the carriage travels. Turn the forward/reverse switch upward to move the carriage forward. Turn the switch down to move the carriage backward.
The middle position (as shown) is the neutral position. The power feed switch is designed to return to the neutral or "off" position when released from operating in the reverse position. If the switch remains engaged, manually move the switch to the neutral or "off" position. Repair the drum switch ( See Section 4.2
) .
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
Setup & Operation HDdoc012020 2-26
2 Setup & Operation
Power Feed Operation
accidental carriage movement. which may cause serious injury or death.
Using The Power Feed
HINT: To get a straight cut in the first part of the board, feed the blade into the log at a slow speed. This stops the blade from flexing and dipping up or down. Turn the carriage feed rate switch to a slow speed until the whole width of the blade has entered the cut. Then use the carriage feed rate switch to increase the feed rate as desired. Maximum feed rate varies with width and hardness of the wood. Over-feeding results in engine and blade wear, and also produces a wavy cut.
1.
Stop the carriage at the end of the cut by turning the carriage feed rate switch counterclockwise until the carriage stops moving.
2.
Throw the clutch/brake lever UP to stop the blade and drop the engine to idle. Remove the board from the top of the log.
CAUTION!
Be sure to stop the blade when returning the carriage. This will not only prevent the blade from being pulled off and ruined by a wood sliver, but also will increase the life of the blade.
3.
Return the carriage to the front of the mill by turning the carriage forward/reverse switch down. Always disengage the blade before returning the carriage for the next cut.
!
IMPORTANT!
When using a sawmill it is very important not to switch between saw head forward/backward movement until the saw head stops.
Failure to do so may result in serious sawmill damage.
4.
Make sure that the blade does not catch on the end of the log. Raise the carriage slightly to make sure the blade clears the log when returned. HINT: Try to stop the blade while the heel of the blade is still on the log.
Then bring the carriage back without adjusting the blade up. This lets you keep the blade at the current height setting so you can make the next blade height adjustment more quickly.
!
DANGER!
Stay clear of the area between the trailer axle and saw carriage.
Failure to do so will result in serious injury.
Check the state of battery charge measuring the voltage every 16 hours of operation or once a week. The voltage should not be lower than 12.5V when the engine is not running and not lower than 13.8V when the engine is running
(during both measurements the hydraulic system and all accessories must not work). If the voltage values are lower than the values given above, recharge the battery and check the battery charging system.
2-27 HDdoc012020 Setup & Operation
Setup & Operation
Cutting The Log
2
2.16 Cutting The Log
The following steps guide you through normal operation of the Wood-Mizer sawmill.
1.
Once the log is placed where you want it and clamped firmly, turn the key switch to the accessory (#3) position.
2.
Use the blade height scale to determine where to make your first cut (
). The blade height scale will help you to do this. Set the blade to the desired height with the up/down switch. Make sure that the blade will clear all side supports and the clamp. Adjust the outer blade guide to clear the widest section of the log by moving the blade guide toggle switch.
NOTE: An optional laser sight is available to help determine where the blade will travel through the log. See the laser sight manual for detailed operating instructions.
3.
Make sure all covers and guards are in place. Start the engine. Engage the clutch/brake lever to start the blade spinning.
4.
Start the water lube if necessary to prevent sap buildup on the blade.
.
5.
Feed the blade into the log slowly
).
Once the blade completely enters the log, increase the feed rate as desired. Always try to cut at the fastest speed you can while keeping an accurate cut. Cutting too slowly will waste blade life and lower production!
6.
As you get to the end of the log, slow down the feed rate. When the teeth exit the end of the log, turn the feed rate all the way down and disengage the clutch/brake lever. Remove the slab that you have just cut from the log.
7.
Use the carriage forward/reverse switch to return the carriage to the front of the mill. Always disengage the blade before returning the carriage for the next cut.
8.
Repeat until the first side of the log is cut as desired. Set aside the usable flitches (boards with bark on one or both sides). You can edge them on the mill later.
Setup & Operation HDdoc012020 2-28
2 Setup & Operation
Edging
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. Make sure it is placed on bed rails if turned 180 degrees. If the log was turned 90 degrees and you are using toe boards to compensate for taper in the log, raise the front or rear toe board again on the second side of the log until the heart is parallel with the bed.
10.
Repeat the steps used to cut the first side of the log until the log is square. Cut boards from the remaining cant by adjusting the blade height for the thickness of boards that you want.
Example: Remember that the blade cuts a 1/16 - 1/8" (1.6-3.2 mm) wide kerf. If you want 1" (25.4 mm) thick boards, lower the carriage 1 1/16 - 1 1/8" (27-28.6 mm) for each board.
2.17 Edging
The following steps guide you through edging boards on the Wood-Mizer sawmill.
1.
Raise the side supports to 1/2 the height of the flitches, or the boards that need to be edged.
2.
Stack the flitches on edge against the side supports.
3.
Clamp the flitches against the side supports halfway up the flitch height. (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 them from the middle of the stack).
4.
Adjust the blade height to edge a few of the widest boards.
5.
Loosen the clamp and turn the edged boards over to edge the other side.
6.
Repeat steps 2-4.
7.
Loosen the clamp and remove the boards that have good clean edges on both sides. Clamp the remaining flitches and repeat steps 2-5.
2.18 Blade Height Scale
See Figure 2-22. The blade height scale is attached to the carriage head frame. It includes:
a blade height indicator
an inch scale
a quarter scale
2-29 HDdoc012020 Setup & Operation
Setup & Operation
Blade Height Scale
2
Quarter
Scale
8
6
5
4
1 4 Blade Height
Indicator
1 5
6
5
4
8
6
5
4
4
5
8
6
4
1 6
1 7
1 8
Inch
Scale
3H0007B
FIG. 2-22
The scales are attached to the frame and move up and down with the carriage head. The blade indicator, used to read the inch and quarter scales, remains stationary.
Blade Height Indicator
The blade height indicator has two horizontal, red lines on both sides. Readings should be taken with eyes level with the indicator, when the two red lines are in line. This will allow to avoid the parallax error (different scale readings depending on the angle of vision).
The Inch Scale
The horizontal red line on the blade height indicator shows how many inches the bottom of the blade is above the bed of the mill. If you know the height of your blade at each cut, 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. Return the carriage for the second cut and lower it 1 1/8" (29 mm) below the original measurement. (The extra 1/8" (3 mm) allows for saw kerf and shrinkage of the lumber.)
The yellow area on the scale identifies where the blade could encounter a side support or log clamp. Check that these items are below the blade level before sawing
The Quarter Scale
See Table 2-2. Two quarter scales are provided with four sets of marks. Each set represents 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. The Grade Hardwood Quarter Scale provides thicker finished boards usually required by commercial buyers. The Standard
Quarter Scale allows for kerf and shrinkage of finished boards suitable for most custom applications. Always
Setup & Operation HDdoc012020 2-30
2 Setup & Operation
Blade Height Scale
check with your customer before you saw to determine what actual finished thickness is required.
Scale
4/4
5/4
6/4
8/4
Standard Quarter Scale
Actual Board Thickness
1" (25 mm)
1 1/4" (32 mm)
1 1/2" (38 mm)
2" (51 mm)
Grade Hardwood Quarter Scale
Scale
4/4
5/4
6/4
8/4
Actual Board Thickness
1 1/8" (29 mm)
1 3/8" (35 mm)
1 5/8" (41 mm)
2 1/8" (54 mm)
TABLE 2-2
To use the quarter scale, look at the blade height indicator.Line up the horizontal red line on the indicator with the nearest mark on the scale you want to use. Make a trim cut. When you return the carriage for 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.
Example: You want to cut 1" (25 mm) (4/4) random width boards from a log. Position the blade for the first cut.
Adjust the quarter scale so a 4/4 mark is aligned with the red line on the indicator. Make a trim cut. Return the carriage for the second cut. Now, instead of having to measure down 1 1/8" (29 mm) on the inch scale, you can simply lower the blade so the indicator is aligned with the next 4/4 mark on the quarter scale. Turn the log 90 degrees and repeat.
2-31 HDdoc012020 Setup & Operation
Setup & Operation
Water Lube Operation
2
2.19 Water Lube Operation
See Figure 2-23. The Water Lube System keeps the blade clean. Water flows from a 5-gallon (18.9
liter) bottle through a hose to the blade guide where the blade enters the log. A valve in the bottle cap controls the amount of water flow.
Turn valve counterclockwise to open; Clockwise to close
3H0129
FIG. 2-23
Not all types of wood require the use of the Water Lube System. When it is needed, use just enough water to keep the blade clean. This saves water, and lowers the risk of staining the boards 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.
WARNING! Use ONLY water with the water lube accessory. Never use flammable fuels or liquids. If these types of liquids are necessary to clean the blade, remove it and clean with a rag. Failure to do so may result in serious injury or death.
Before removing the blade, engage the clutch/brake lever. Let the blade spin with water running on it for about
15 seconds. This will clean the blade of sap buildup. Wipe the blade dry with a rag before storing or sharpening.
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.
Setup & Operation HDdoc012020 2-32
2 Setup & Operation
Preparing The Sawmill For Towing
2.20 Preparing The Sawmill For Towing
The Wood-Mizer trailer package makes transporting your sawmill easy and convenient. To get your sawmill ready for towing, follow these instructions.
CAUTION!
If the weight of the sawmill exceeds 3,000 lbs (1361 Kg) for any reason, an auxiliary braking system (such as electric brakes) must be used.
Failure to do so may result in severe machine damage.
1.
Move the saw carriage to the front end of the sawmill. Raise the rear outriggers.
2.
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. Failure to do so may result in damage to the sawmill.
3.
Use the hydraulic controls to raise the log turner and loader as high as they will go. Manually lift the loader and hook the loader chain to the elbow of the turner. Use the hydraulic turner lever to lower the turner until the chain is tight. Push the loader lever down to bring the loader arm channels up to the loader.
4.
Move the carriage forward to the travel position over the rear bed rail.
5.
Position the hole in the saw head over the travel rest pin.
6.
Lower the saw head until it is seated firmly on the rest pin.
7.
Secure the rest pin in the vertical position with the locking pin.
See Figure 2-24.
HD0075
8.
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 properly adjusted to secure the carriage on the track rail. Failure to properly adjust the stop bolts
FIG. 2-24
2-33 HDdoc012020 Setup & Operation
Setup & Operation
Preparing The Sawmill For Towing
2 can cause saw head damage, especially during mill transportation.
9.
If necessary, adjust the two stops located at the bottom of the mast so the saw head contacts them after it is lowered 3/4" (19mm) past where it contacts the rest pin.
See Figure 2-25.
Loosen jam nut and turn bolt to raise or lower stop bolt
FIG. 2-25
10.
Engage the clutch/brake lever. This keeps the drive belt tight and the motor from bouncing while traveling. Be sure to disengage the clutch/brake handle after reaching the destination to avoid deformation of the drive belt.
11.
Hook the carriage safety chain located at the bottom of the carriage to the bracket at the bottom of the mast.
See Figure 2-26.
Safety chain
FIG. 2-26
CAUTION! Check to be sure the saw head safety chain is secured before towing the sawmill. Failure to properly secure the saw head can result in severe machine damage. Be sure the blade housing and pulley covers are in place and secure. Use the safety retainer pin and cable to fasten blade housing covers.
12.
Remove all loose objects from the bed of the mill. Store the outrigger jack handle in the bracket provided on the rear/loading-side outrigger guide. Reel in the winch cable. Remove the winch handle.
Setup & Operation HDdoc012020 2-34
2 Setup & Operation
Preparing The Sawmill For Towing
13.
Place both fenders in the slots located behind the trailer tires and secure with retaining pins. Raise all but the very front outrigger.
See the trailer operator’s manual for specific information regarding hitch operation and towing the sawmill.
2-35 HDdoc012020 Setup & Operation
Maintenance
Wear Life
3
SECTION 3 MAINTENANCE
0
This section lists the maintenance procedures that need to be performed.
WARNING!
Disconnect and lock out power supply before servicing, cleaning and doing maintenance to the saw! Failure to do so may result in serious injury.
The Short Interval Maintenance Schedule lists procedures that need to be performed every 4, 8 or 25 hours.The Maintenance Log lists procedures that need to be performed every 50, 100, 200, 300,
500, or 1000 hours. Keep track of machine maintenance by filling 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 option and engine manuals for other maintenance procedures.
3.1
Wear Life
See Table 3-1. This chart lists estimated life expectancy of common replacement parts if proper maintenance and operation procedures are followed. Due to the many variables which exist during sawmill operation, actual part life may vary significantly. This information is provided so that you may plan ahead in ordering replacement parts.
Part Description
Up/Down Motor Brushes
B57 Blade Wheel Belts
Up/Down Motor
Hydraulic Pump Solenoid
Power Feed Motor Brushes
Up/Down Drum Switch
Blade Guide Rollers
Hydraulic Pump Motor Brushes
Power Feed Drum Switch
Drive Belt
Power Feed Motor
Power Feed Belt
Up/Down Belt
Estimated
Life
1000 hours
500 hours
2000 hours
750 hours
750 hours
1000 hours
1000 hours
1000 hours
1200 hours
1250 hours
1500 hours
2000 hours
2000 hours
TABLE 3-1
Maintenance HDdoc012020 3-1
3 Maintenance
Blade Guides
3.2
Blade Guides
1.
Check the rollers for performance and wear every blade change. Make sure the rollers are clean and spinning freely. If not, rebuild them. Replace any rollers which have worn smooth or have become cone shaped. See
The LT40 Series DH Parts manual for blade guide rebuild kits and complete roller assemblies.
Steel Blade Guide Blocks
2.
Inspect the blocks at every blade change for damage or wear. If the block is bent or damaged, replace the block assembly.
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. It is recommended you develop a routine schedule for replacing the blade guide blocks based on your sawing conditions and experience.
See Figure 3-1.
FIG. 3-1
3.
Check the inserts are properly spaced from the bottom of the blade every 25 hours of operation. As the rollers
25 wear, the gap between the blade and inserts will become larger. Use the provided shim or a feeler gauge to check the inserts are adjusted 0,3 - 0,5 mm from the blade.
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.
!
IMPORTANT!
The inserts should be parallel to the blade. Check the space between the insert and the blade at each side of the insert to insure it is parallel. Use the appropriate outer adjustment bolt to tilt the insert mounting plate so the insert is parallel to the blade.
After adjusting the drive side blade guide block insert up, check the deflector. If necessary, loosen the two deflector mounting screws and adjust the deflector so it does not touch the blade.
3-2 HDdoc012020 Maintenance
Maintenance
Sawdust Removal
3
See Figure 3-2.
4.
Make sure the blade screw in the top center of the C-frame is 1/16" (1.5 mm) below the bottom of the blade. If not, loosen the nut and adjust the screw as necessary. Check the screw every blade change. Failing to maintain this adjustment will lead to early blade breakage.
FIG. 3-2
3.3
Sawdust Removal
1.
Remove the excess sawdust from the blade wheel housings and sawdust chute every blade change.
8
2.
Remove all sawdust and debris from around the velocity fuse valves every 8 hours of operation. The valves are located at the bottom of the log loader cylinders.
3.
Remove sawdust buildup as necessary from the battery box lid and top rail cover.
CAUTION!
Failure to remove sawdust buildup from the battery box lid and/or track rail cover could result in damage to these parts when the saw head is lowered to its lowest position.
3.4
Carriage Track, Wiper & Scrapers
8
1.
Clean the upper and lower track rails to remove any sawdust and sap buildup every eight hours of operation.
Lubricate the lower track rail by wiping it with Dexron III ATF.
8
2.
Remove sawdust from the upper cam housings. Loosen the thumb screws on the upper cam housing covers and open. Brush any sawdust buildup from the housings.
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 thumb screw, push the scraper downward until it fits firmly against the rail, and retighten the thumb screw.
25
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. If the wiper presses too firmly against the rail, it can cause the power feed to bind.
Maintenance HDdoc012020 3-3
3 Maintenance
Vertical Mast Rails
See Figure 3-3.
Carriage track
Remove track wiper, clean and lubricate
Loosen thumbscrew to open housing lid
Clean sawdust from upper cam housing
Adjust track scrapers (2)
FIG. 3-3
3.5
Vertical Mast Rails
50
Clean and lubricate the vertical mast rails every 50 hours of operation. Clean with solvent and remove any rust with a light-grade sand paper or emery cloth. Lubricate the mast with motor oil or automatic transmission fluid
(ATF).
CAUTION! Never use grease on the mast rails as it will collect sawdust.
3.6
Drum Switches
50
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.
WARNING!
Drum switch grease contains Petroleum Hydrocarbon Lubricant.
Eye and skin irritant. If introduced into eyes, flush with water for at least 15 minutes. If film or irritation persists, seek medical attention. Wash skin with soap and water. If ingested, do not induce vomiting - contact a physician.
KEEP OUT OF THE REACH OF CHILDREN.
3-4 HDdoc012020 Maintenance
Maintenance
Miscellaneous
3
3.7
Miscellaneous
1.
Apply a thin film of a NLGI No. 2 grade lithium grease to the blade guide arm every fifty hours of operation to
50 help prevent it from rusting.
2.
Grease the clamp mechanism, loading arm, and side supports with a NLGI No. 2 grade lithium grease every
50 fifty hours of operation.
3.
Oil all chains with Dexron III ATF every fifty hours of operation.
50
CAUTION!
Do not use chain lube. It causes sawdust buildup in chain links.
4.
Check the mill alignment every setup. See Section 5, Alignment.
5.
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.
6.
Lubricate the clutch lever bushings every 200 hours of operation (or once a month). Apply lithium grease to the fitting.
3.8
Blade Tensioner
1.
Lubricate the chrome rods of the tensioner system with a heavy duty teflon spray lubricant, such as Gunk
L508, every fifty hours of operation.
50
2.
Lubricate the tensioner screw handle with a NLGI No. 2 grade lithium grease as needed.
See Figure 3-4.
Chrome rods
Tensioner screw handle
FIG. 3-4
3.
Add an Automatic Transmission Fluid (ATF) such as Dexron III ATF to the hydraulic blade tensioner as needed.
Maintenance HDdoc012020 3-5
3 Maintenance
Blade Wheel Belts
To add enough fluid to completely fill the tensioner block:
Remove the tensioner handle and ball. Remove the sawmill blade housing covers, blade and idle-side blade wheel.
Push the idle-side shaft housing all the way in to collapse the rear tensioner piston and fully extend the front piston. The front piston should reach the threaded area of the piston guide.
NOTE: If the hydraulic fluid level is extremely low, collapsing the rear piston may not fully extend the front piston. If it does not, finish the fill procedure in its entirety and repeat. The first pass should add enough fluid to allow the front piston to fully extend. The second pass should add enough fluid to completely fill the block.
Locate the fill plug behind the tension gauge. Clean any dirt and debris from the plug area. Use a 7/16” wrench to remove the plug, making sure to keep the plug o-ring with the plug.
Manually extend the rear piston (the front piston should remain extended).
Use a small funnel or cup to completely fill the block with hydraulic fluid. When full, place the fill plug in the fill plug hole and thread 1-2 turns. Manually push the rear piston all the way in to allow excess oil and air to bleed from system through the plug. Tighten the plug all the way.
Reinstall the idle-side blade wheel, blade and blade housing covers. Reinstall the tensioner ball and handle.
See Figure 3-5.
3H0610
FIG. 3-5
3.9
Blade Wheel Belts
1.
Rotate the blade wheel belts and check them for wear. Rotating the belts every 50 hours will give you longer
50 belt life. Replace belts as necessary. Use only B57 belts manufactured by Goodyear or Browning.
2.
Periodically check all belts for wear. Replace any damaged or worn belts as needed.
3-6 HDdoc012020 Maintenance
Maintenance
Brake Strap Adjustment
3
3.10 Brake Strap Adjustment
200
Check the brake strap for wear every 200 hours of operation. Replace if damaged or worn.
Also check and adjust the brake strap if the blade does not stop quickly, unusual sounds occur when the brake is applied, or a sudden change is noticed in the clutch handle position when the clutch is disengaged.
To access the brake strap, remove the belt cover located underneath the engine. Engage the clutch/brake lever.
Loosen the two nuts on the upper brake strap bracket. Slide the bracket and brake strap down until snug.
Retighten the bolts. Replace the belt cover.
See Figure 3-6.
Adjust bracket down to tighten brake strap
Upper Brake Strap
Bracket Bolts
FIG. 3-6
Maintenance HDdoc012020 3-7
3 Maintenance
Drive Belt Adjustment
3.11 Drive Belt Adjustment
50
WARNING!
Do not for any reason adjust the engine drive belts or belt support bracket with the engine running. Doing so may result in serious injury.
See Table 3-2. Check the drive belt tension after the first 20 hours, and every 50 hours thereafter.
See the table below for drive belt tension specifications for your model sawmill.
Engine/Motor
G25
D33
Belt Tension
7/16” (11mm) deflection with 8 lbs. (3,6kG) of deflection force
7/16” (11mm) deflection with 16 lbs.(7,2kg) of deflection force
TABLE 3-2
1.
Remove the two belt covers located underneath the engine.
2. For Manual Clutch Handle: Loosen the drive belt turnbuckle jam nuts. Turn the turnbuckle counterclockwise
(as viewed from the top) to tighten the belt, clockwise to loosen the belt.
See Figure 3-7.
Turnbuckle terclockwise to tighten belt
3H0287B
FIG. 3-7
3. For Autoclutch Option: 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, counterclockwise to loosen the belt.
3-8 HDdoc012020 Maintenance
Maintenance
Drive Belt Adjustment
3
See Figure 3-8.
Turn bottom jam nut clockwise to tighten belt
3H0505-3
FIG. 3-8
4.
After tensioning the drive belt, check throttle cable tension and adjust if necessary. The throttle cable should be tensioned just enough so that the engine revs as soon as the clutch/brake handle is engaged. The throttle linkage should NOT affect engine RPM while the clutch/brake handle is disengaged. NOTE: A properly adjusted throttle will extend the cable spring 1/4" to 3/8" (6.4 - 9.5 mm) when running and have a slight amount of slack in the cable when idling. Always be sure to check the drive belt support after adjusting drive belt tension.
AR
Periodically check all belts for wear. Replace any damaged or worn belts as needed.
Maintenance HDdoc012020 3-9
3 Maintenance
Drive Belt Adjustment
AR
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).
See Figure 3-9. To adjust the drive belt support:
1.
Make sure the motor is not running. Loosen the adjustment bolts.
2.
Position the bracket so that the prong is close to, but does not touch, the drive belt with the clutch handle engaged.
3.
Re0tighten the adjustment bolts 25-27 pound feet (34-37 newton meters).
Loosen bolt to adjust belt support
3H0228
FIG. 3-9
3-10 HDdoc012020 Maintenance
Maintenance
Clutch Handle Adjustment
3
3.12 Clutch Handle Adjustment
After the drive belts and brake strap are properly adjusted, the clutch handle should lock in the down position
for optional Autoclutch adjustment.
1.
Remove the blade from the sawmill.
2.
Remove the inner belt guard and pull the clutch handle down to engage the drive belts.
3.
Hold a straight edge between the bottom and top pivot centers and measure the distance to the middle pivot.
4.
Adjust the clutch handle turnbuckle until the center of the middle pivot is 7/16” from the straight edge.
See Figure 3-10.
Clutch Handle
Turnbuckle
3H0506
Lower
Pivot
Straight
Edge
7/16"
FIG. 3-10
Maintenance HDdoc012020 3-11
3 Maintenance
Autoclutch Option Adjustment
3.13 Autoclutch Option Adjustment
If your sawmill is equipped with the Autoclutch option, check the clutch linkage after every drive belt or brake strap adjustment.
1.
Remove the blade from the sawmill.
2.
Remove the inside belt guard and push the Autoclutch switch up to engage the drive belts.
3.
With the belts engaged, place a straight edge between the upper and lower clutch pivot centers. Measure the distance to the middle pivot.
4.
Adjust the Autoclutch turnbuckle so the middle pivot is positioned 7/16” behind the straight edge.
See Figure 3-11.
3H0505
Remote Clutch
Turnbuckle Straight
Edge
7/16"
Lower
Pivot
FIG. 3-11
3-12 HDdoc012020 Maintenance
Maintenance
Hydraulic System
3
3.14 Hydraulic System
1.
Check the hydraulic fluid level every fifty hours of operation. Add fluid as necessary. The level in the hydraulic
50 pump should be 3/4" (19mm) from the top with all cylinders collapsed.
If humidity is a problem or the mill is used outside in humid weather, drain and replace two quarts (.95 liters) of fluid every six months. This will drain any accumulated water and help prevent pump failure due to water ingestion. It also will prevent excessive fluid wear and allow the fluid to maintain its hot end performance. If humidity is not a problem, drain and replace one gallon (3.8 liters) of fluid every year to prevent fluid wear.
See Figure 3-12. If you are operating in temperatures -20° to 100° F (-29° to 38° C), use an all-weather hydraulic fluid such as Exxon Univis J26. For alternate fluids and/or other temperature ranges, refer to the chart below. Operating above the recommended temperature range of a fluid could result in excessive pump wear. Operating below the recommended temperature range could result in reduced hydraulic cylinder speed.
To change fluid types, replace one gallon of the current fluid with one gallon of the alternate fluid.
F -30° -20° -10° 0° 10° 20° 30° 40° 50° 60° 70° 80° 90° 100° 110° 120°
C -35° -29° -23° -18° -12° -7° -1° 5° 10° 16° 21° 27° 32° 38° 44° 49°
2.
Replace the hydraulic system cartridge filter every 500 hours of operation.
500
3.
Periodically check all hydraulic lines and fitting as needed. Replace as necessary.
HD0049B
FIG. 3-12
Maintenance HDdoc012020 3-13
3 Maintenance
Drive Bearing
3.15 Drive Bearing
500
Refill the fluid in the drive-side cylinder bearing housing every 500 hours of operation. Remove the top and bottom oil plugs. Pour an Automatic Transmission Fluid (ATF) such as UNIVIS J26 or Dexron III ATF into the top hole until it begins to flow from the bottom hole. Reinstall the square oil plug to the bottom hole and the vented oil plug to the top hole.
See Figure 3-13.
Vented plug
Top hole
Bottom hole
Square plug
FIG. 3-13
3-14 HDdoc012020 Maintenance
Maintenance
Up/Down System
3
3.16 Up/Down System
1.
Grease the up/down gear reducer shaft bearing with a NLGI No. 2 grade lithium grease every 1000 hours of
1000 operation.
See Figure 3-14.
Up/Down Gear Reducer
Shaft Bearing
3H0016B
FIG. 3-14
2.
Adjust the up/down belt as needed. Remove the up/down housing cover. To tighten the belt, loosen the motor mount nuts. Pull the motor upward so there is 3/8" (9.5 mm) deflection with a 7 lb. (3.2 Kg) deflection force.
Retighten the motor mount nuts. Replace the drive pulley cover.
WARNING!
Always secure the cutting head with a chain or a brace before removing the up/down motor belt. The cutting head may fall, causing severe injury or death.
Maintenance HDdoc012020 3-15
3 Maintenance
Up/Down System
3.
Adjust the up/down chain tension as needed. Measure chain tension with the head all the way to the top of the vertical mast. Secure the carriage with a chain at the top, or shim it underneath. Find the chain adjusting bolt at the bottom of the mast, behind the battery box. Adjust the bolt until the center of the chain can be deflected 3/4”
(1.9cm) forward and 3/4” (1.9cm) backward with a 5 lb. (2.3 Kg) deflection force.
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.
CAUTION!
Do not over-tension the chain. Over-tensioning the chain may lead to early failure of the gear reducer.
See Figure 3-15.
Up/Down Chain
Adjustment Nuts
FIG. 3-15
3-16 HDdoc012020 Maintenance
Maintenance
Power Feed
3
3.17 Power Feed
1.
Adjust the power feed belt as needed. When the power feed belt gets loose, it will begin slipping. This causes the carriage to not move forward when cutting. To retighten the belt:
See Figure 3-16. Remove the four cover bolts and belt cover and measure the belt tension. The belt should be tightened so there is 1/8" (3 mm) deflection with a 7 lb. (3.2 Kg) deflection force. To adjust the belt tension, loosen the four motor mount bolts. Place a wrench on the jam nut and turn the adjustment bolt clockwise to tighten the belt. Retighten the motor bolts and replace the feed motor cover.
Loosen four motor mount bolts bolts
Turn bolt clockwise to tighten belt
3H0292
Remove four cover bolts and belt cover
FIG. 3-16
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. Adjust the chain until it measures 7 to 8 inches (17.8 to 20.3 cm) from the top of the top rail at its lowest point.
CAUTION!
Do not overtighten the feed chain. Damage to the power feed motor may result.
Maintenance HDdoc012020 3-17
3 Maintenance
Power Feed
See Figure 3-17.
3H0018B
Feed Chain
Adjustment Nuts
FIG. 3-17
3-18 HDdoc012020 Maintenance
Maintenance
Safety Devices Inspection
3
3.18 Safety Devices Inspection
LT40 DC – Safety devices inspection
Safety devices on the LT20DC machine which must be checked before every shift:
E-STOP button and its circuit inspection
Inspection of the control circuits with the E-STOP button pressed
Blade cover safety switches and its circuit inspection
Blade brake and its circuit inspection
1. E-STOP button and its circuit inspection
Start the engine;
Turn the tensioner handle to engage the blade;
Press the E-STOP button located on the left side of the control box. Engine should be stopped.
Re-starting the engine shouldn’t be possible until the E-STOP button is released.
Maintenance HDdoc012020 3-19
3 Maintenance
Safety Devices Inspection
Saw Head
Forward
Debarker
Motor On/Off
Saw Head
Up
Saw Head
Down
Emergency
Stop Button
Saw Head
Reverse
Debarker
Arm In/Out
20_121d
Blade Guide
Arm In/Out
Engine Key
Switch
2. Inspection of the control circuits with the E-STOP button pressed
Start the engine;
Turn the tensioner handle to engage the blade;
Press the E-STOP button located on the left side of the control box. Engine should be stopped..
With E-STOP button pressed try to move the saw head up and down (using switch and setwork buttons) and forward/backward using power feed switch. Both systems shouldn’t start.
With E-STOP button pressed try to start the debarker blade motor and move the debarker arm in and out. Debarker shoudn’t work.
With E-STOP button pressed try to move the blade guide arm in and out. Blade guide arm shoudn’t work.
With E-STOP button pressed try to control the board return arm. Board return arm shoudn’t work.
3-20 HDdoc012020 Maintenance
Maintenance
Safety Devices Inspection
3
3. Blade cover safety switches and its circuits inspection.
Start the engine;
Turn the tensioner handle to engage the blade;
Open left blade housing cover;
Engine should be stopped;
Try to start the engine. The engine should remain stopped;
Close blade housing cover;
Engine should remain stopped.
Re-start the engine
Turn the tensioner handle to engage the blade;
Open right blade housing cover;
Engine should be stopped;
Try to start the engine. The engine should remain stopped;
Close blade housing cover;
Engine should remain stopped.
4. Blade brake and its circuit inspection
Start the engine;
Turn the tensioner handle right to engage the blade.
Stop the engine by switching the key to “0” position. Measure the braking time.
Re-start the engine. Turn the tensioner handle right to engage the blade.
Turn the tensioner handle left to stop the blade. Measure the braking time.
Braking time should always be shorter then 10 seconds. If the braking time is longer it is neccesary to adjust or replace brake pads.
Maintenance HDdoc012020 3-21
LT40 S/M DH Short Interval Maintenance Schedule
(Check engine and option manuals for additional maintenance procedures)
PROCEDURE
EVERY BLADE CHANGE
Check Blade Guide Roller Performance
Remove Excess Sawdust From Blade Wheel Housings And Sawdust Chute
Check Blade Screw
EVERY 8 HOURS
Clean And Lubricate Track
Remove Sawdust From Upper Cam Housings
Clean Sawdust From Hydraulic Loader Fuses, Battery Box Lid & Track Cover
EVERY 25 HOURS
Clean And Lubricate Upper Track Wiper
MANUAL
REFERENCE
See Section 3.2
See Section 3.2
See Section 3.2
See Section 3.4
See Section 3.4
See Section 3.3
See Section 3.4
f:\manuals\forms\635 HDdoc012020
Clean & lube mast rails
Lubricate drum switches
Grease pivot points and bearings/Oil chains
Check belt tensions
PROCEDURE
Check brake strap tension
Rotate drive/idle blade wheel belts/Check all belts for wear
Check feed & up/down chain tensions
WOOD-MIZER LT40 S/M DH MAINTENANCE LOG
(Check Engine And Option Manuals For Additional Maintenance Procedures)
MANUAL
REFERENCE
50 HRS
TOTAL HOURS OF OPERATION
FILL IN THE DATE AND THE MACHINE HOURS AS YOU PERFORM EACH PROCEDURE.
A SHADED BOX INDICATES MAINTENANCE IS NOT NEEDED AT THIS TIME.
100 HRS 150 HRS 200 HRS 25O HRS 300 HRS 350 HRS 400 HRS 450 HRS
See Section 3.5
See Section 3.6
See Section 3.7
See Section 3.16
See Section 3.17
See Section 3.11
See Section 3.16
See Section 3.17
See Section 3.10
See Section 3.9
Check up/down gear box fluid level
Lubricate blade tensioner handle and rods
Inspect hydraulic lines & fittings
Check hydraulic fluid level
Replace hydraulic system filter
Replace cylinder drive bearing fluid
Inspect hydraulic pump motor brushes
Grease up/down shaft bearing
See Section 3.16
See Section 3.17
See Section 3.16
See Section 3.8
See Section 3.14
See Section 3.14
See Section 3.14
See Section 3.15
See Section 3.14
See Section 3.16
500 HRS f:\manuals\forms\624 HDdoc012020
Clean & lube mast rails
Lubricate drum switches
Grease pivot points and bearings/Oil chains
Check belt tensions
PROCEDURE
Check brake strap tension
Rotate drive/idle blade wheel belts/Check all belts for wear
Check feed & up/down chain tensions
WOOD-MIZER LT40 S/M DH MAINTENANCE LOG
(Check Engine And Option Manuals For Additional Maintenance Procedures)
MANUAL
REFERENCE
550 HRS
TOTAL HOURS OF OPERATION
FILL IN THE DATE AND THE MACHINE HOURS AS YOU PERFORM EACH PROCEDURE.
A SHADED BOX INDICATES MAINTENANCE IS NOT NEEDED AT THIS TIME.
600 HRS 650 HRS 700 HRS 75O HRS 800 HRS 850 HRS 900 HRS 950 HRS
See Section 3.5
See Section 3.6
See Section 3.7
See Section 3.16
See Section 3.17
See Section 3.11
See Section 3.16
See Section 3.17
See Section 3.10
See Section 3.9
Check up/down gear box fluid level
Lubricate blade tensioner handle and rods
Inspect hydraulic lines & fittings
Check hydraulic fluid level
Replace hydraulic system filter
Replace cylinder drive bearing fluid
Inspect hydraulic pump motor brushes
Grease up/down shaft bearing
See Section 3.16
See Section 3.17
See Section 3.16
See Section 3.8
See Section 3.14
See Section 3.14
See Section 3.14
See Section 3.15
See Section 3.14
See Section 3.16
1000 HRS f:\manuals\forms\624 HDdoc012020
]
Clean & lube mast rails
Lubricate drum switches
Grease pivot points and bearings/Oil chains
Check belt tensions
PROCEDURE
Check brake strap tension
Rotate drive/idle blade wheel belts/Check all belts for wear
Check feed & up/down chain tensions
WOOD-MIZER LT40 S/M DH MAINTENANCE LOG
(Check Engine And Option Manuals For Additional Maintenance Procedures)
MANUAL
REFERENCE
1050 HRS
TOTAL HOURS OF OPERATION
FILL IN THE DATE AND THE MACHINE HOURS AS YOU PERFORM EACH PROCEDURE.
A SHADED BOX INDICATES MAINTENANCE IS NOT NEEDED AT THIS TIME.
1100 HRS 1150 HRS 1200 HRS 125O HRS 1300 HRS 1350 HRS 1400 HRS 1450 HRS
See Section 3.5
See Section 3.6
See Section 3.7
See Section 3.16
See Section 3.17
See Section 3.11
See Section 3.16
See Section 3.17
See Section 3.10
See Section 3.9
Check up/down gear box fluid level
Lubricate blade tensioner handle and rods
Inspect hydraulic lines & fittings
Check hydraulic fluid level
Replace hydraulic system filter
Replace cylinder drive bearing fluid
Inspect hydraulic pump motor brushes
Grease up/down shaft bearing
See Section 3.16
See Section 3.17
See Section 3.16
See Section 3.8
See Section 3.14
See Section 3.14
See Section 3.14
See Section 3.15
See Section 3.14
See Section 3.16
1500 HRS f:\manuals\forms\624 HDdoc012020
Clean & lube mast rails
Lubricate drum switches
Grease pivot points and bearings/Oil chains
Check belt tensions
PROCEDURE
Check brake strap tension
Rotate drive/idle blade wheel belts/Check all belts for wear
Check feed & up/down chain tensions
WOOD-MIZER LT40 S/M DH MAINTENANCE LOG
(Check Engine And Option Manuals For Additional Maintenance Procedures)
MANUAL
REFERENCE
1550 HRS
TOTAL HOURS OF OPERATION
FILL IN THE DATE AND THE MACHINE HOURS AS YOU PERFORM EACH PROCEDURE.
A SHADED BOX INDICATES MAINTENANCE IS NOT NEEDED AT THIS TIME.
1600 HRS 1650 HRS 1700 HRS 175O HRS 1800 HRS 1850 HRS 1900 HRS 1950 HRS
See Section 3.5
See Section 3.6
See Section 3.7
See Section 3.16
See Section 3.17
See Section 3.11
See Section 3.16
See Section 3.17
See Section 3.10
See Section 3.9
Check up/down gear box fluid level
Lubricate blade tensioner handle and rods
Inspect hydraulic lines & fittings
Check hydraulic fluid level
Replace hydraulic system filter
Replace cylinder drive bearing fluid
Inspect hydraulic pump motor brushes
Grease up/down shaft bearing
See Section 3.16
See Section 3.17
See Section 3.16
See Section 3.8
See Section 3.14
See Section 3.14
See Section 3.14
See Section 3.15
See Section 3.14
See Section 3.16
2000 HRS f:\manuals\forms\624 HDdoc012020
Clean & lube mast rails
Lubricate drum switches
Grease pivot points and bearings/Oil chains
Check belt tensions
PROCEDURE
Check brake strap tension
Rotate drive/idle blade wheel belts/Check all belts for wear
Check feed & up/down chain tensions
WOOD-MIZER LT40 S/M DH MAINTENANCE LOG
(Check Engine And Option Manuals For Additional Maintenance Procedures)
MANUAL
REFERENCE
2050 HRS
TOTAL HOURS OF OPERATION
FILL IN THE DATE AND THE MACHINE HOURS AS YOU PERFORM EACH PROCEDURE.
A SHADED BOX INDICATES MAINTENANCE IS NOT NEEDED AT THIS TIME.
2100 HRS 2150 HRS 2200 HRS 225O HRS 2300 HRS 2350 HRS 2400 HRS 2450 HRS
See Section 3.5
See Section 3.6
See Section 3.7
See Section 3.16
See Section 3.17
See Section 3.11
See Section 3.16
See Section 3.17
See Section 3.10
See Section 3.9
Check up/down gear box fluid level
Lubricate blade tensioner handle and rods
Inspect hydraulic lines & fittings
Check hydraulic fluid level
Replace hydraulic system filter
Replace cylinder drive bearing fluid
Inspect hydraulic pump motor brushes
Grease up/down shaft bearing
See Section 3.16
See Section 3.17
See Section 3.16
See Section 3.8
See Section 3.14
See Section 3.14
See Section 3.14
See Section 3.15
See Section 3.14
See Section 3.16
2500 HRS f:\manuals\forms\624 HDdoc012020
4 Troubleshooting Guide
Sawing Problems
SECTION 4 TROUBLESHOOTING GUIDE
4.1
Sawing Problems
PROBLEM
Blades Dull Quickly
CAUSE
Dirty logs
When grinding teeth, heating too much and causing teeth to soften
Poor sharpening techniques
SOLUTION
Clean or debark logs, especially on entry side of the cut
Grind just enough metal to restore sharpness to the teeth. Use water/coolant while sharpening blade
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
Poor sharpening techniques
Tension too tight
Cant adjustment is incorrect
Change blade wheel belts (B-57)
See Sharpener Manual
Tension blade to recommended specifications
Readjust Blade Does Not Track Right on Drive Wheel
Blade Guides Do Not Spin
While Cutting
Flat/worn belts
Frozen bearings
Blade Does Not Stop Immediately After Disengaging
Drive Belts Come Off Pulleys
When Disengaging Blade
Stiff bearings
Brake strap too loose
Brake strap too loose
Drive Belts Wear Prematurely or Jump
Brake drum misaligned
Brake strap tightened with one edge too loose and one edge too tight
Engine/motor and drive pulleys out of alignment
Replace B-57 belts
Replace bearings
Grease bearings
Adjust brake strap
Adjust brake strap
Realign on drive shaft
Adjust brake strap
Align pulleys
Engine/Motor and Drive Pulleys Align-
4-1 HDdoc012020 Troubleshooting Guide
Troubleshooting Guide
Sawing Problems
4
PROBLEM
Boards Thick Or Thin On
Ends Or Middle Of Board.
CAUSE
Stress in log which causes log to not lay flat on the bed.
Height Adjustment Jumps or
Stutters When Moving Up or
Down.
Set in teeth.
Bed rails misaligned.
Mast needs lubrication.
Lumber Is Not Square
Sawdust Builds Up On Track
Wavy Cuts
SOLUTION
After log has been squared, take equal cuts off opposing sides. Take a board off the top. Turn the log 180 degrees.
Take a board off. Repeat, keeping the heart in the middle of the cant, and making it your last cut.
Resharpen and reset blade.
Realign sawmill.
Lubricate mast track surface.
Up/down chain improperly adjusted.
Vertical wear pads are too tight.
Drive belt(s) loose.
Vertical side supports not square to bed
Blade not parallel to bed rails
Sawdust or bark between cant and bed rails
Tooth set problems
Excessive oiling
Track wipers worn
Track is sticky
Excessive feed
Improperly sharpened blade (This will be the problem 99% of the time!)
Blade guides improperly adjusted
Sap buildup on blade
Tooth set problem
Adjust up/down chain.
Adjust pads.
Adjust belts.
Adjust side supports.
Adjust bed rails parallel to blade.
Remove particles
Resharpen and reset blade
Do not oil track
Adjust wipers to firmly contact track
Clean track with solvent and apply silicone spray
Slow feed rate
Resharpen blade (See Sharpener Manual - read entire manual!)
Adjust blade guides.
Use Water Lube.
Resharpen and reset blade
Troubleshooting Guide HDdoc012020 4-2
4 Troubleshooting Guide
Electrical Problems
4.2
Electrical Problems
PROBLEM
Up/down Excessively Slow.
CAUSE
Vertical wear pads too tight.
Up/down belt loose.
Worn up/down motor or motor brushes.
SOLUTION
Adjust pads.
Adjust belt to be as loose as possible without slipping
Replace up/down motor or motor brushes.
Up/down Or Power Feed
Motors Do Not Work.
Up/Down Or Power Feed
Switches Remain Engaged
When Switch Is Released.
Worn/dirty contacts in drum switch.
Bad key switch.
Circuit breaker.
Burned-out motor.
Bad connection on battery post or loose wire.
Worn or dirty contacts in drum switch.
Drum switch spring broken.
System overload or bind occurred.
Replace switch or remove control panel cover and clean contacts.
Replace key switch.
Replace breaker
Replace motor.
Check for loose wire or terminal connections.
Manually move the power feed or up/down switch back to neutral or "off" position. Replace drum switch or remove control panel cover and clean and lubricate contacts NOTE: Use only contact grease supplied by Wood-Mizer.
Manually move the power feed or up/down switch back to neutral or "off" position. Replace drum switch spring.
Correct problem.
Allow motor to cool before restarting.
Up/Down Or Power Feed
Motors Overheat And Loose
Power.
Everything Works And Then
Cuts Out - Works Again.
Normal operation factors exceeded (eg: up/down control jockeyed excessively).
Bad battery, fuse, or ground connection.
Allow motor to cool before restarting.
Check and tighten connections.
Nothing Works Electrically.
Battery Will Not Stay Charged.
Dead battery.
Blown fuse.
Corrosion on battery post.
Key switch left ON.
Short in system.
Charging system not functioning.
Bad battery cells.
Idle improper.
Loose alternator belt.
Check for short circuit or turn OFF key.
Replace.
Remove connection and clean posts.
Turn switch OFF when not in use.
Visually check for bare wires and/or have checked.
Have charging system checked by authorized dealer.
Check fluid levels and add proper solution
Adjust low end RPM per engine manual.
Check belt tension and tighten if necessary.
4-3 HDdoc012020 Troubleshooting Guide
Troubleshooting Guide
Power Feed Problems
4
Loose connections at LED circuit board or alternator.
Check and tighten connections.
4.3
Power Feed Problems
NOTE: The power feed circuit board is equipped with LED lights to help determine if the circuit board or feed rate switch are the cause of any feed problems you may encounter.
PROBLEM
Power Feed Is Jerky At Low
Speeds Or Does Not Move
Until Speed Is Above Halfway
Mark.
CAUSE
Drum switch is dirty.
SOLUTION
Clean drum switch and lubricate with contact grease supplied by
Wood-Mizer.
Power Feed Is Jerky When
Shaft Of Feed Rate Dial Is
Moved Back And Forth.
Power Feed Is Jerky, But
Power Feed Motor Runs Properly At All Speeds.
Drum switch contacts are bad
Components are loose or wires are broken.
Variable speed switch is bad - perform the variable speed switch test.
Problem is mechanical.
Check that contacts are in good condition and positively close circuit.
Replace or repair PC board.
Replace variable speed switch.
Refer to the Mechanical Test.
Troubleshooting Guide HDdoc012020 4-4
4 Troubleshooting Guide
Power Feed Problems
PROBLEM
Power Feed Motor Overheats.
CAUSE
Middle track oiler is dragging.
Ground is not level.
Track roller bearing drag is excessive.
Lubricate bearings; Replace tight bearings. Allow motor to cool before restarting.
Lower track rollers are not aligned properly.
Check stop block clearance from lower bed rail. Allow motor to cool before restarting.
Chain is dragging.
SOLUTION
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.
Level mill with carpenter's level. Allow motor to cool before restarting.
Chain is improperly tensioned.
Make sure chain is centered on cam follower bearing; Clean and lubricate chain; Adjust chain tension. Allow motor to cool before restarting.
Adjust chain tension. Allow motor to cool before restarting.
Seat load is excessive.
Power feed is binding.
Saw head load is excessive.
Blade is dull or improperly set.
Check seat bearings for freedom of movement; Loosen clamping screw 1/4 turn. Allow motor to cool before restarting.
Adjust belt tension; Check condition of belt, pulleys, bearings, and sprocket;
Check motor for ground fault. Allow motor to cool before restarting.
Avoid unnecessary modifications to saw heads that would give them extra weight. Allow motor to cool before restarting.
Use proper blade maintenance procedures (See Sharpener or Toothsetter manual). Allow motor to cool before restarting
4-5 HDdoc012020 Troubleshooting Guide
Troubleshooting Guide
Power Feed Circuit Troubleshooting
4
4.4
Power Feed Circuit Troubleshooting
LED lights are provided on the control module to help troubleshoot any feed problems you may encounter.
See Figure 4-1. The lights can be viewed by removing the rear control box panel.
OUT
PWR
IN
OV
OL
See
Detail
3H0400B-3
FIG. 4-1
If you have trouble determining the problem indicated by the LED lights, please note which lights are on and call customer service for assistance.
IN - This light normally brightens and dims as the feed rate switch is turned up or down. If the light is always on or always off, the feed rate switch is probably miswired. An erratic light indicates a worn or defective feed rate switch.
OV - This light indicates an overvoltage condition. This can be caused by a defective alternator not regulating voltage properly or a bad connection. The OV light will come on and deactivate the power feed control output until the problem is corrected.
OL - This light indicates an extreme overload condition of the power feed motor caused by a mechanical bind or a short in the wiring between the motor and circuit board. The OL light will come on and deactivate the power feed control output until the problem is corrected.
OUT - This light normally dims and brightens at the same rate as the IN light when the 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. Call Customer Service for assistance.
PWR - Indicates battery power is present at the power feed control circuit board.
Troubleshooting Guide HDdoc012020 4-6
4 Troubleshooting Guide
Hydraulic Problems
4.5
Hydraulic Problems
PROBLEM
You Can Actuate Any Hydraulic Handle, But Get No
Response From The Pump.
You Can Get Response From the Pump By Actuating All
But One or Two Handles
CAUSE
Carriage not positioned properly to provide power to the pump
Poor ground connection
Blown fuse
Low or dead battery
Defective pump motor
Poor cable connection
Defective solenoid (may be indicated by solenoid clicking)
See Monarch manual for troubleshooting solenoid
Valve assembly switch contacts are not properly adjusted
SOLUTION
Make sure carriage contact bracket is adjusted far enough forward for battery positive contact to touch 6ft. strip on main tube. Check contact and strip for tarnish or loose wires. Clean as necessary
Check ground connection between pump and saw frame and between battery negative contact and lower rail. Check contact and rail for tarnish or loose wires. Clean as neccesary
Replace
Test battery amperage capability (such as low battery charge, low alternator ouput, defective voltage regulator, bad battery cell, battery age deterioration, etc.). Replace or recharge as necessary
Remove motor from pump and inspect. Repair or replace as necessary
Check cable connection and make sure that battery terminals are in good condition (not corroded)
After checking all other possibilities for low voltage to solenoid, check solenoid. Tapping on solenoid may fix temporarily. Replace solenoid if necessary. NOTE: The solenoid is not a standard automotive type. Order from Wood-Mizer only
Locate the valve switch at the bottom of the valve assembly. Use a 3MM allen wrench to loosen the set screw on each of the five switch contacts. Press each contact to the valve block and tighten the contact set screw to secure in place. CAUTION! Do not overtighten!
NOTE: Do not adjust the valve switch or switch spring; they have been preset at the factory.
4-7 HDdoc012020 Troubleshooting Guide
PROBLEM CAUSE
Pump Motor Runs With Little
Or No Response From The
Cylinders
Low battery
Low fluid level
Troubleshooting Guide
Hydraulic Problems
4
SOLUTION
Test battery. Recharge or replace as necessary
Pump Motor Runs Continuously When Power Contact Is
Made
Fluid Leaks From Around Cylinder Piston Ram
Solenoid is stuck closed
Worn seals
Check fluid level. Add an all-season hydraulic fluid such as Amoco Rycon Oil MV or Mobil
Multipurpose ATF (automatic transmission fluid) until level is 4 - 4 1/2" from bottom of reservoir with all cylinders retracted
Adjust pressure relief valve. Pressure relief valve moved from proper setting
Low air temperature causing fluid to thicken
Allow fluid to warm up. Synthetic fluids are available that allow for hydraulic operation in cold weather conditions (Mobil SHC 526)
Tapping the solenoid may solve this problem temporarily. Replace solenoid
Fluid Leak Around Pump Box Loose seal or fitting
Replace seals in cylinder. Check piston ram for abrasive weld that may be causing premature seal failure
Wipe pump off completely to locate cause of lead. You may have to unbolt the pump to wipe behind it. NOTE: Movement of the sawmill can cause fluid to slosh up into the foam filter in the reservoir cap, and subsequently spray out, giving the appearance that fluid is leaking from the pump
Troubleshooting Guide HDdoc012020 4-8
4 Troubleshooting Guide
Engine/Motor and Drive Pulleys Alignment
PROBLEM CAUSE
Hydraulic Side Supports Go
Down Before Or At Same
Time As Log Turner
Dirt in sequence valve
SOLUTION
Remove sequence valves and clean thoroughly with kerosene. NOTE: Be sure to reassemble the valve and install it in its original position on the cylinder
Replace sequence valve Retainer in sequence valve worn
Low air temperature causing fluid to thicken
Allow fluid to warm up. Synthetic fluids are available that allow for hydraulic operation in cold weather conditions (Mobil SHC 526)
Hydraulic Turner Goes Up
Before Or At Same Time As
Side Supports
Spring weakening in sequence valve
Locate sequence valve at top of turner cylinder.
Turn heavy spring in about 1/4 turn
Dirt in sequence valve Remove sequence valves and clean thoroughly with kerosene. NOTE: Be sure to reassemble the valve and install it in its original position on the cylinder
Replace sequence valve Retainer in sequence valve worn
Low air temperature causing fluid to thicken
Springs weakening in sequence valve.
4.6
Engine/Motor and Drive Pulleys Alignment
Allow fluid to warm up. Synthetic fluids are available that allow for hydraulic operation in cold weather conditions. (Mobil SHC 526)
Locate sequence valve at bottom of turner cylinder. Turn heavy spring in about 1/4 turn
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.
3.
Check front-to-back movement of the engine does not exceed 1/4". Tighten the motor mount U-bolts if necessary.
4.
Engage the clutch handle and adjust the drive belt tension to 7/16" deflection with 10 lb. of force.
5.
Recheck the pulley alignment and engine squareness with the clutch handle engaged. Adjust if necessary.
6.
Adjust the drive belt support to 1/4" (±1/32) from the belt while engaged.
4-9 HDdoc012020 Troubleshooting Guide
Troubleshooting Guide
Power Feed Preliminary Test
4
4.7
Power Feed Preliminary Test
This test will determine if the problem is a mechanical or electrical.
1.
Remove the drive belt from the power feed drive pulley.
2.
Turn the key switch to the ACC position. Put the carriage forward/reverse switch into the forward position and turn the feed rate dial through all speeds. If the power feed motor runs properly at all speeds, the problem is a mechanical one instead of an electrical one.
4.8
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.
Make sure the middle track oiler is free of sawdust buildup.
4.
Make sure the power feed chain is not stiff from rust. Also make sure the chain is not too tight.
5.
Check the power feed shaft. Visually inspect the bearings. The shaft should move neither in or out nor side to side.
6.
Make sure the power feed chain cam bearing is not touching the main frame tube.
7.
Make sure there is no sap or rust on the rails.
8.
Make sure the block on the lower track roller assembly is not rubbing the lower rail. Also make sure the track rollers are not too tight.
9.
Make sure the power feed belt is properly tightened.
4.9
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.
CAUTION!
The fuse stud extension is designed to provide enough power to raise the saw head only. Do not attempt to start the engine or operate any other electrical function until direct battery charging can be performed. Do not attempt to move the saw head by attaching jumper cables from a secondary power source to the up/down motor terminals. Damage to the electrical system will result.
Troubleshooting Guide HDdoc012020 4-10
4 Troubleshooting Guide
Circuit Breaker Operation
See Figure 4-2.
Place stud on bottom right
Extension stud storage location
3H0417
FIG. 4-2
1.
Remove the fuse box cover and remove the stud from its storage position inside the fuse box.
2.
Thread the extension stud on the bottom-right fuse terminal.
3.
Attach the positive cable from a battery charger or jumper cables to the extension stud.
4.
Connect the negative cable from the charger or jumper cables to a grounded metal surface. 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.
After the saw head is raised, remove the negative cable from ground.
7.
Remove the positive cable from the extension stud.
8.
Remove the extension stud from the fuse terminal and return it to its storage location.
9.
Remove the battery box lid and connect the positive cable directly to the positive battery terminal.
10.
Connect the negative cable to a grounded metal surface.
11.
After the battery is completely recharged, remove the negative charger cable from ground. Remove the positive cable from the battery and replace the battery box lid.
4.10 Circuit Breaker Operation
Sawmill controls are equipped with manual reset circuit breakers to protect the electrical circuits.
4-11 HDdoc012020 Troubleshooting Guide
Troubleshooting Guide
Circuit Breaker Operation
4
See Figure 4-3. The power feed and up/down breakers are externally mounted at the front of the control box.
The blade guide, accessory, ignition, and start breakers are located inside the control box. Remove the circuit breaker panel from the control box to access the internal breakers.
NOTE: If the breaker is still hot, you may not be able to reset it immediately.
Allow the breaker to cool for a few minutes before attempting to reset.
External
Power Feed
Circuit Breaker
3H0549-4
Blade
Guide
Start Not
Used
External
Up/Down
Circuit Breaker
FIG. 4-3
Troubleshooting Guide HDdoc012020 4-12
5
Sawmill Alignment
Pre-Alignment Procedures
SECTION 5 SAWMILL ALIGNMENT
5.1
Pre-Alignment Procedures
The Wood-Mizer sawmill is factory aligned. Two alignment procedures are available to realign the sawmill if necessary. The Routine Alignment instructions should be performed as necessary to solve sawing problems not related to blade performance. The Complete Alignment procedure should be performed approximately every 1500 hours of operation (sooner if you regularly transport the sawmill over rough terrain).
Routine Alignment Procedure:
1.
Install and track the blade ( See Section 5.3
).
2.
Check the angle of the blade in relation to the bed rails and adjust the lower track rollers if necessary
(
).
3.
Check and adjust the vertical alignment of the blade guide arm (
).
4.
Check and adjust the horizontal alignment of the blade guide arm (
).
5.
Check and adjust the vertical angle of the blade guides (
).
6.
Check and adjust the horizontal angle of the blade guides (
).
7.
Check and adjust the spacing between the blade guide flanges and the back of the blade (
).
8.
Check and adjust the horizontal angle of the side supports ( See Section 5.15
9.
Check and adjust the vertical angle of the side supports ( See Section 5.16
10.
Check that the blade height scale accurately displays the actual distance from the bottom of the blade to the bed rails and adjust if necessary (
).
Complete Alignment Procedure:
Perform all steps in this section to completely realign the sawmill.
5.2
Frame Setup
Stationary sawmills should be setup on firm, level ground before proceeding with alignment. Shim the feet so the weight of the sawmill is evenly supported.
Portable sawmills should also be setup on firm, level ground:
LT40S: Adjust the two middle outriggers on the main frame tube down just enough to lift weight from
5-1 doc012020 Sawmill Alignment
Sawmill Alignment
Blade Installation And Alignment
5 the trailer tire.
LT40M: Adjust the two end outriggers on the main frame tube down just enough to lift weight from the trailer tire.
All Portable Sawmills: Adjust the two outer outriggers down just so they touch the ground but do not bear weight.
See SECTION 2 Setup & Operation for additional setup information.
5.3
Blade Installation And Alignment
See Figure 5-1. Install a blade and apply the appropriate tension (
). Blade tension is adjusted with the tension handle shown.
Blade Tensioner
Gauge
Blade Tensioner
Handle
SM0243
FIG. 5-1
1.
Raise the middle blade housing cover and make sure all persons are clear of the open side of the saw head.
2.
Start the engine (or motor).
3.
Pull lightly on the clutch handle, rotating the blade until the blade positions itself on the wheels.
WARNING!
Do not spin the blade wheels by hand. Spinning the blade wheels by hand may result in serious injury.
4.
Release the clutch handle to stop the blade. Turn off the engine, remove the key and check the position of the blade on the blade wheels.
Sawmill Alignment doc012020 5-2
5
Sawmill Alignment
Blade Installation And Alignment
Check the vertical alignment of the idle-side blade wheel. The gullet of the blade should ride the same distance from the front edge of the wheel at the top and bottom of the wheel. If it does not, loosen and tighten the appropriate adjustment screws on the wheel shaft.
See Figure 5-2. The blade wheels should be adjusted so that the gullet of 1 1/4" blades ride 3.0 mm
(0.12") out from the front edge of the wheels (± 1.0 mm[0.04"]). The gullet of 1 1/2" blades should ride 4.5 mm (0.18") from the front edge of the wheels (± 1 mm [0.04"]). Do not let the teeth ride on the wheels.
SM0044D
3.0 mm (0.12”)
± 1 mm (0.04”)
1 1/4"
Blade
4.5 mm (0.18”)
± 1 mm (0.04”)
1 1/2"
Blade
FIG. 5-2
To adjust where the blade travels on the idle-side blade wheel, use the cant control shown in Figure
5-1.
If the blade is too far forward on the wheels, turn the cant control counterclockwise. If it is too far back on the wheels, turn the cant control clockwise.
Some adjustment in blade tension may be needed to compensate for adjustments made with the cant control.
Adjustment 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-side wheel can be adjusted as follows:
See Figure 5-3. For horizontal adjustment, use the horizontal adjustment bolts. If the blade is running 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. Loosen the hex nuts on the U-bolt (on the back side of the back plate). Loosen the jam nuts on the horizontal adjustment bolts. Tighten the adjustment bolts to spread the plates apart and bring the blade forward.
If the blade is running too far to the front, loosen the jam nuts on the horizontal adjustment bolts and back the adjustment bolts out. Tighten the hex nuts on the long U-bolt (on the back side of the back plate).
5-3 doc012020 Sawmill Alignment
Sawmill Alignment
Saw Head Slide Pad Adjustment
5
Be sure to tighten all nuts against the mounting plates when the adjustment is complete.
Vertical
Adjustment Bolt
Horizontal
Adjustment Nuts
AC0032
FIG. 5-3
The vertical angle of the drive side wheel is factory-set and should not need to be adjusted. If adjustment is needed use the vertical adjustment bolts. To tilt the wheel upward, tighten the top bolt and loosen the bottom bolt. To tilt the wheel downward, tighten the bottom bolt and loosen the top bolt.
5.4
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 spacing, perform the following steps.
NOTE: The pads on the engine side of the mast are referred to as the "inner" pads. The pads on the control side of the mast are referred to as the "outer" pads.
NOTE: Shims are often used around the clamping bolts, between the C-frame support bracket and the mast v-brace. The shims align the v-brace to the mast so that the entire face of each slide pad makes contact with the mast. Be sure to keep these shims in place when performing the following adjustment.
Sawmill Alignment doc012020 5-4
5
Sawmill Alignment
Saw Head Slide Pad Adjustment
See Figure 5-4.
A
C
E
B
D
FIG. 5-4
5-5 doc012020 Sawmill Alignment
Sawmill Alignment
Saw Head Slide Pad Adjustment
5
1.
Raise the saw head to the top of the vertical mast and secure the saw head with a chain at the top, or shim it underneath. Check the top set of four pads.The outer two pads should be touching the mast rails. There should be a small gap (just wide enough to slide a business card through) between one of the inner pads and the mast rail.
WARNING!
Always secure the cutting head with a chain or a brace before adjusting the mast pads. The cutting head may fall, causing severe injury or death.
2.
To adjust the spacing of the upper set of pads, lower the saw head until you can access the upper slide pad adjustment bolts.
3.
Loosen the upper locking bolts and turn the adjusting bolt as necessary to provide the pad spacing
4.
Lower the saw head to the bottom of the vertical mast. Check the bottom set of four pads.
There should be a small gap between one of the outer pads and the mast rail. The gap should be just wide enough to slide a business card through. The inner two pads should be touching the mast rails.To adjust the spacing of the lower set of pads, raise the saw head until you can access the lower slide pad adjustment bolts.
5.
Loosen the lower locking bolts and turn the adjusting bolt as necessary to provide the pad spacing
CAUTION! Due to variations in the vertical mast, the pad 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.
Sawmill Alignment doc012020 5-6
5
Sawmill Alignment
Adjusting The Lower Track Rollers
5.5
Adjusting The Lower Track Rollers
See Figure 5-5. Making these adjustments correctly will give you square cuts and accurate dimensions across the width of your boards.
1.
Using the feed controls, move the saw carriage so that the blade is positioned over the front pivot end rail.
2.
Check the lower roller on the bottom track rail. Make sure that the bottom rollers touch the bottom rail but remain loose enough that you can turn them with your finger. Use the vertical bolts to adjust the bottom track rollers.
3.
Check the inside lower rollers. Both inside rollers should touch the rail so that you cannot spin them by hand. If the rollers are not adjusted evenly and you can spin either one, adjust the horizontal nuts until the roller cannot be spun by hand. Check the other roller and adjust if necessary. Adjust both inside rollers until each evenly supports the carriage and you cannot spin either by hand.
4.
Move the carriage forward until the blade is positioned over the rear pivot end rail. Repeat steps 2 &
3 until all lower rollers are adjusted properly at the front and rear of the sawmill.
SM0135B
Inside Lower
Rollers (2)
Bottom Lower
Rollers (2) Horizontal
Adjustment
FIG. 5-5
5.
Remove the blade guides, or adjust them so that they do not touch the blade.
6.
Open the adjustable blade guide arm to within 1/2" (15 mm) of full open.
5-7 doc012020 Sawmill Alignment
Sawmill Alignment
Adjusting The Lower Track Rollers
5
7.
Move the carriage back to the front pivot end rail. Raise the cutting head until the bottom of the blade is 17" (400 mm) above the outside of the pivot rail support by actual measurement with a tape or ruler.
See Figure 5-6.
400 mm to blade
SM0137
FIG. 5-6
8.
Move the carriage forward to check the distance to the blade at the inside of the pivot rail support. All measurements should be equal within ± 1.0 mm.
9.
Turn the horizontal adjustment nuts evenly to adjust the inner lower rollers to tilt the saw head until the blade is parallel (± 1.0 mm) to the pivot rail support on the outside.
NOTE: Adjustments of the lower track rollers change the angle between the cutting head and sawmill bed rails. Only small adjustments of the lower track rollers should ever be needed.
10.
After the lower track rollers are adjusted properly, adjust the upper and lower stop screws. Tighten each screw until it just touches the rail. Then, back the screw off 1/2 turn. The gap will be approximately 2.0 mm.
CAUTION!
It is important that the lower stop bolts are properly adjusted to secure the carriage on the track rail. Failure to properly adjust the stop bolts can cause saw head damage, especially during mill transportation.
Sawmill Alignment doc012020 5-8
5
Sawmill Alignment
Adjusting Bed Rails To The Blade
5.6
Adjusting Bed Rails To The Blade
1.
Move the vertical clamp to its lowest position. Before using the clamp tube as a reference to set the blade, make sure it is level.
2.
Move the clamp all the way toward the clamp stop. Position the saw head so the blade is over the clamp tube. Measure from the outer end of the clamp tube to the bottom of the blade.
3.
Move the saw head back to power the hydraulics and move the clamp all the way out. Position the blade over the clamp tube again and measure from the inner end of the clamp tube to the bottom of the blade.
4.
If the clamp tube is level, the measurement to the blade at both ends will be the same within 1/16"
(1.5 mm). If adjustment is needed, loosen the four mounting bolts at the outer end of the clamp tube and adjust the clamp tube up or down as necessary. Tighten the mounting bolts.
See Figure 5-7.
Position blade 385mm (15 5/16") above clamp at its lowest position lowest position
254mm (10") from clamp stop
HD0132B
Clamp tube
Loosen bolts to adjust clamp tube parallel to blade
FIG. 5-7
5-9 doc012020 Sawmill Alignment
Sawmill Alignment
Adjusting Bed Rails To The Blade
5
5.
Move the saw head back to power the hydraulics and move the clamp so it is 10" from the clamp stop. Move the saw head forward until it is positioned over the clamp. Raise the saw head until the blade measures 15 5/16" (385 mm) from the clamp at its lowest position.
6.
Adjust the front pivot rail 90° to the main bed tube.
7.
Move the saw head to center the blade over the front pivot bed rail.
8.
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.
9.
The two measurements should be 15" (375 mm).
10.
Loosen the locking set screws and turn the inner height adjustment nut to adjust the height of the inner end of the pivot rail.
See Figure 5-8.
375mm (15") to blade
SM0134B
375mm (15 1/32") to blade
Inner Height
Adjustment
Nut
Outer Height
Adjustment
Bolt
FIG. 5-8
Sawmill Alignment doc012020 5-10
5
Sawmill Alignment
Adjusting Bed Rails To The Blade
See Figure 5-9. Optional bed rail (angled) to blade to blade
Inner Height
Adjustment Nut
Outer Height
Adjustment Bolt
FIG. 5-9
11.
Loosen the jam nut and turn the outer adjustment bolt to adjust the height of the outer end of the pivot rail.
12.
Move the saw head so the blade is positioned over the center of the front main bed rail.
13.
Measure the distance between the bottom of the blade and the bed rail at each end of the bed rail.
The bed rail should measure 15" (375 mm) (+ 1.0 mm on the outer end) from the blade at each end of the rail.
See Figure 5-10.
Blade
Bed Rails
Clamp bolt
Adjustment bolt
Clamp bolt
Adjustment bolt
5-11 doc012020
FIG. 5-10
Sawmill Alignment
Sawmill Alignment
Adjusting Bed Rails To The Blade
5
See Figure 5-11. Optional bed rail (angled)
Bed rails
Blade
Clamp bolt
Adjustment bolt
Clamp bolt
Adjustment bolt
Adjustment bolt
SM0064_D
FIG. 5-11
14.
Loosen the bed rail clamping bolts and turn the adjustment bolts to move the bed rails to the blade if necessary.
15.
Retighten the clamping bolts and adjustment bolts.
16.
Without adjusting the saw head height, check the three remaining main bed rails and the rear pivot rail. Adjust them so that all measure the same distance from the blade at both ends of the bed rail.
Sawmill Alignment doc012020 5-12
5
Sawmill Alignment
Blade Guide Arm Vertical Adjustment
5.7
Blade Guide Arm Vertical Adjustment
1.
Move the saw head so that the blade guide arm is directly over a bed rail.
2.
Adjust the blade guide arm out to within 1/2" (15 mm) of full open.
3.
Measure from the top of the bed rail to the arm.
See Figure 5-12.
Turn outside rollers to raise or lower end of blade guide arm
SM0065B
FIG. 5-12
4.
Adjust the blade guide arm in to within 1/2" (15 mm) of full closed. Measure again from the top of the bed rail to the arm.
5.
Adjust the arm so that the measurement from the top of the bed rail to the 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 tighten the upper
If the arm is too high in the closed position, loosen the upper outside roller and tighten the lower
5-13 doc012020 Sawmill Alignment
Sawmill Alignment
Blade Guide Arm Horizontal Adjustment
5
6.
The rollers are mounted on cam bolts that raise or lower the arm when turned.
To adjust the rollers, locate the cam bolt head inside the housing and turn until the arm is lowered or raised as needed. Recheck the arm in both the open and closed positions. Repeat adjustments until the arm is the same distance from the bed rail in the open and closed position.
7.
The blade guide arm should be snug, but not too tight, in the rollers. You should be able to move it in and out with firm hand pressure. There should be no side-to-side play.
5.8
Blade Guide Arm Horizontal Adjustment
1.
Put the blade guide assembly back in the arm (if you took it out). Put the assembly back so that the flanged collar on the roller is about 1/8" (3.0 mm) from the back of the blade when the throat is 1/2"
(15 mm) from full open.
2.
Close the throat to within 1/2" (15 mm) from fully closed. Check to see that the flange is the same distance from the back of the blade.
See Figure 5-13.
Flange equal distance from and closed positions
SM0067
FIG. 5-13
Sawmill Alignment doc012020 5-14
5
Sawmill Alignment
Blade Guide Arm Horizontal Adjustment
3.
If adjustment is needed, the guide rollers can be adjusted in or out on the threaded mounts to open or close the gap.
See Figure 5-14.
SM0066
FIG. 5-14
4.
Adjusting the outside two rollers (furthest from 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 the same distance from the back of the blade in the open and closed position.
5-15 doc012020 Sawmill Alignment
Sawmill Alignment
Aligning the Blade Guides
5
5.9
Aligning the Blade Guides
Each Wood-Mizer sawmill has two blade guide assemblies that help the blade maintain a straight cut. The two blade guide assemblies are positioned on the saw head to guide the blade on each side of the material being cut.
One blade guide assembly is mounted in a stationary position on the drive side of the saw head. This assembly is referred to as the "inner" blade guide assembly.
The other blade guide assembly is mounted on the idle side of the saw 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 Tilt
Blade Guide Flange Spacing
Blade Guide Horizontal Tilt
Perform the blade guide alignment after you have aligned the blade on the wheels and adjusted the blade and blade guide arm parallel to the bed rails. After blade guide alignment, check the scale
indicator to make sure it is adjusted properly ( See Section 5.19
NOTE: During blade guide alignment, remove the blade guide adjusting screws and apply a lubricating oil such as 10W30 or Dexron III to each screw. This will prevent the screws and threaded holes from corroding and make screw adjustments easier.
Sawmill Alignment doc012020 5-16
5
Sawmill Alignment
Blade Deflection
5.10 Blade Deflection
Perform the following steps to achieve proper blade deflection with the blade guides.
1.
Raise the carriage until the blade is 15" (375 mm) above a bed rail. Measure the actual distance with a tape from the top of the rail to the bottom of the blade.
2.
Install the blade guides. Make sure the two set screws shown are threaded into the blade guide shaft until they touch each other.
See Figure 5-15.
Turn jam nuts to adjust roller up or down
Sm0068b
3.
Loosen the bottom jam nut and tighten the top jam nut until the blade guide deflects the blade down
4.0 mm.
4.
Repeat for the other blade guide.
FIG. 5-15
NOTE: Be sure that the blade guide deflector rod clears the blade on both guide assemblies. The rod on the outer guide assembly should be checked with the arm all the way in and all the way out.
5-17 doc012020 Sawmill Alignment
Sawmill Alignment
Blade Guide Vertical Tilt Adjustment
5
5.11 Blade Guide Vertical Tilt Adjustment
Check that the blade guide does not tilt the blade up or down. A Blade Guide Alignment Tool (BGAT) is provided to help you measure the vertical tilt of the blade.
1.
Open the adjustable blade guide arm 1/2" (15 mm) from full open.
2.
Clamp the alignment tool on the blade. Position the tool close to a blade guide roller. Be sure the tool does not rest on a tooth or burr, and is lying flat on the blade.
See Figure 5-16.
Clip tool to blade
FIG. 5-16
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 guide alignment tool to the top surface of the cover rather than the bed rail tube.
4.
Move the carriage so that the front end of the tool is positioned above the bed rail.
5.
Measure the distance from the bed rail to the bottom edge of the tool.
6.
Loosen one set screw at the side of the blade guide assembly.
7.
Use the set screws shown to tilt the blade guide until the measurement from the bed rail to the tool equals the first measurement taken at the center of the tool.
Sawmill Alignment doc012020 5-18
5
Sawmill Alignment
Blade Guide Vertical Tilt Adjustment
See Figure 5-17.
Loosen jam nuts and turn screws to tilt roller up or down
Sm0070c
FIG. 5-17
8.
Move the carriage forward so the back end of the tool is over the bed rail.
9.
Use the set screws shown to adjust the blade guide tilt until the measurement from the 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, measure the distance between the blade and the bed rails again to ensure the correct 4.0 mm blade guide deflection. Adjust if necessary.
5-19 doc012020 Sawmill Alignment
Sawmill Alignment
Blade Guide Spacing
5
5.12 Blade Guide Spacing
HINT: When adjusting blade guide spacing, loosen the top set screw and one side set screw only.
This will ensure horizontal and vertical tilt adjustments are maintained when the set screws are retightened.
1.
Adjust the inner blade guide so the blade guide flange is approximately 3.0 mm 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 5-18.
Loosen one top and one side set screw
Adjust blade guide to desired position
SM0071
FIG. 5-18
3.
Retighten the two set screws.
4.
Adjust the outer blade guide in the same way so the blade guide flange is approximately 3.0 mm from the back of the blade.
Sawmill Alignment doc012020 5-20
5
Sawmill Alignment
Horizontal Tilt Adjustment
5.13 Horizontal Tilt Adjustment
1.
Finally, both blade guides must be tilted horizontally. Adjust the blade guide arm halfway in.
See Figure 5-19.
Turn side set screws to adjust horizontal tilt
50cm (19 11/16")
FIG. 5-19
2.
Place the Blade Guide Alignment Tool against the face of the outer blade guide roller.
3.
Center the tool on the roller and measure between 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 slightly to the left (A=B-1.4" [6 mm]).
6.
Use the side set screws to adjust the horizontal tilt of the roller.
7.
Repeat steps 3-7 for the inner blade guide roller.
NOTE: Once the blade guides have been adjusted, any cutting variances are most likely caused by the blade. See the Blade Handbook, Form #600.
5-21 doc012020 Sawmill Alignment
Sawmill Alignment
Blade Guide Block Adjustment
5
5.14 Blade Guide Block Adjustment
To ensure correct cutting, adjust the gap between the blade guide block and the blade. Perform the adjustment with the blade installed and properly tensioned.
See Figure 5-20. Loosen both nuts and retaining bolts. Use the adjustment bolt to raise or lower the disc until its distance from the blade is 0.3 - 0.5 mm. Then retighten the retaining bolts so that the disc is parallel to the blade. Retighten the retaining bolt nuts.
Loosen both nuts and retaining bolts
Sm0205pl_b
FIG. 5-20
See Figure 5-21. The gap between the disc and the blade should measure 0.3 - 0.5 mm.
Sawmill Alignment
0.3-0.5 mm doc012020
Sm0290b
FIG. 5-21
5-22
5
Sawmill Alignment
Horizontal Adjustment of Side Supports
5.15 Horizontal Adjustment of Side Supports
Logs and boards are clamped against the side supports when sawing. The sides supports must be square to the bed to ensure square lumber.
1.
Swing the side support down.
2.
Measure between the face of the support and the main bed tube. Make measurements at both ends of the side support to make sure that it is parallel to the rail.
See Figure 5-22.
3.
Use the two lower bolts to adjust the side support so B=A.
4.
Repeat for remaining side supports.
Bed rail
Measure distance
Side support
Adjustment bolts
FIG. 5-22
5-23 doc012020 Sawmill Alignment
Sawmill Alignment
Vertical Adjustment of Side Supports
5
5.16 Vertical Adjustment of Side Supports
1.
Place a flat board across the bed rails.
2.
Swing a side support up so that it is vertical.
3.
Pull back at the top of the support to eliminate slack as if a log were being clamped against it.
See Figure 5-23.
FIG. 5-23
4.
Check the angle of each support with a square on the board.
5.
The side support should be 90° to the bed rails. Loosen the top adjustment bolt, adjust the side support, and retighten the bolt.
6.
Repeat for the remaining side supports.
Sawmill Alignment doc012020 5-24
5
Sawmill Alignment
Clamp Stop/Stop Bolt Adjustment
5.17 Clamp Stop/Stop Bolt Adjustment
1.
Once the side supports are aligned, pivot them down to their horizontal position.
2.
Tie a string across the face of the side supports.
See Figure 5-24.
3.
Loosen the clamp stop bolts and adjust the clamp stop until it touches the string. Loosen the jam nut and adjust the bolt on the middle-rear bed rail until it touches the string.
Adjust stop bolt against string
String across side supports
Adjust clamp stop to string
SM0191
FIG. 5-24
5-25 doc012020 Sawmill Alignment
Sawmill Alignment
Saw Head Tilt
5
5.18 Saw Head Tilt
As the blade enters a wide log or cant, the outside of the saw head will drop down slightly. To compensate for the drop, use the lower track roller horizontal bolts to raise the outside of the saw head 1/16" (1.5 mm).
1.
Move the saw head so the blade is positioned 14 3/4" (375 mm) above a bed rail.
2.
Adjust the lower track roller horizontal nuts until the blade measures 14 13/16" (376 mm) from the bed rail near the outer blade guide.
See Figure 5-25.
SM0135B
Sawmill Alignment
Horizontal
Adjustment
Inside Lower
Rollers (2)
Vertical
Bottom Lower Rollers
Bottom Lower
Rollers (2)
Adjustment Bolt
FIG. 5-25 doc012020 5-26
5
Sawmill Alignment
Blade Height Scale Adjustment
5.19 Blade Height Scale Adjustment
After the entire sawmill has been aligned and all adjustments made, check that the blade height scale indicates the true distance from the blade to the bed rails.
1.
Move the saw head so the blade is positioned directly above one of the bed rails. Measure from the bottom edge on a down-set tooth of the blade to the top of the bed rail (or stainless steel sleeve if applicable).
See Figure 5-26.
2.
View the blade height scale with eyes level with the indicator.
Quarter
Scale
8
6
5
4
1 4
Blade Height
Indicator
1 5
6
5
4
1 6
8
6
5
4
4
5
8
6
4
1 7
1 8
Inch
Scale
3H0007
FIG. 5-26
3.
Loosen the indicator bracket mounting bolts and adjust the bracket until the indicator is aligned with the correct mark on the scale. Retighten the bracket mounting nut.
For example, if the measurement from blade to bed rail was 14 3/4" (375 mm), make sure the indicator reads 14 3/4" (375 mm) on the scale.
5-27 doc012020 Sawmill Alignment
Sawmill Alignment
Board Return Bracket
5
5.20 Board Return Bracket
Adjust the board return bracket so the bottom edge is positioned 1/4" below the bottom of the blade.
1.
With a square cant on the bed rails, lower the blade until it touches the top of the cant. Then raise the saw head 1/4" as shown on the scale.
2.
Lower the board return arm. The board return bracket should barely touch the top of the cant.
3.
Loosen the three bracket mounting bolts to adjust the bracket up or down as necessary.
See Figure 5-27.
3H0432
Bracket
Mounting
Bolts (3)
FIG. 5-27
Sawmill Alignment doc012020 5-28
EC declaration of conformity
according to EC Machinery Directive 2006/42/EC, Annex II, 1.A
Manufacturer:
Wood-Mizer Industries sp. z o.o.
Nagórna 114, 62.RáR3RODQG
Tel. +48 63 26 26 000
This declaration of conformity is issued under the sole responsibility of the manufacturer.
Following machine in our delivered version complies with the appropriate essential safety and health requirements of the EC Machinery Directive 2006/42/EC based on its design and type, as brought into circulation by us. In case of alteration of the machine, not agreed by us, this declaration is no longer valid.
We, the undersigned herewith declare, that:
Designation of the machine:
Type:
No. of manufacturer:
Sawmill
LT40
………………………………………..
Is in conformity with the following
EC directives: EC Machinery Directive 2006/42/EC
EC Electromagnetic Compatibility Directive 2014/30/EU
And is in conformity with the following
Harmonized Standards: PN-EN ISO 12100:2012
PN-EN 1807-2: 2013-08
PN-EN ISO 13849-1:2016-02
PN-EN 60204-1:2010
PN-EN ISO13857:2010
PN-EN ISO 4413:2011
Notified Body according to annex IV : PZ.LSV; Pruf- und Zertifizierungsstelle des
Spitzenverbandes der landwirtschaftlichen
Sozialversicherung
Notification No: 2157
EC type - examination certificate no: LSV-EG-2015/104
Responsible for Technical Documentation: 7RPDV]$JDFLĔVNL(QJLQHHULQJ0DQDJHU
Wood-Mizer Industries Sp. z o.o.
62.RáRXO1DJyUQD3RODQG
Tel. +48 63 26 26 000
Place / Date / Authorized Signature
Title:
.RáR
Engineering Manager
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Key Features
- Hydraulic log handling for easy handling of logs
- Blade height scale for precise cuts
- Water lube system for blade cooling and lubrication
- Power feed system to assist log movement
- Stationary design for stability