woodmizer LT40 Series User manual

Wood-Mizer®
Safety, Setup, Operation
& Maintenance Manual
LT40 Series DH rev. F1.00
Safety is our #1 concern! Read and understand
all safety information and instructions before oper-
ating, setting up or maintaining this machine.
Form #604
!
This is the original language
for the manual.

4 HDdoc012020
Sawmill and Customer Identification
Each Wood-Mizer sawmill has a 17-digit Vehicle Identification Number (VIN). See the fig-
ure below for VIN locations. See the chart for VIN description.
V.I.N. LOCATIONS.
456 A 4 24 1 X j N A F9 017 F9 .01
V.I.N. DESCRIPTION
2
1
3
HD0133
Company Identification Number
456=Wood-Mizer Indiana
Weight Class; A=Under 1300 kg, B=1301-1800 kg,
C=1801-2200 kg, D=2201-3000kg, X- Stationary.
Product No.; 1=LT10/15, 2=LT20 Series,
4=LT40 Series, 7=LT70 Series
Length of the Trailer;
20= 20’ (6 m), 24=24’ (7 m), 35=35’ (11 m)
Number of axles on the trailer
Year of Manufacture;
N=2015, P=2016, R=2017, S=2018, T=2019
State of Manufacture
N=Indiana, P=Poland
Month of Manufacture
A=January, B=February, C=March, etc...
Revision Level
Sequence Number
Ranging from 000-999
End of 17-Digit VIN
Revision Level (Repeated)
Two-Digit Minor Revision Level
Check Digit
Add all the number and divide by 11

HDdoc012020 5
Each sawmill is also identified with a model number which includes the base model and
the engine/motor configuration. See the figure for a description of the model number.
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.
MODEL NUMBER DESCRIPTION.
Customer No. Model No. V.I.N. Revision
LT40DH
Basic Sawmill I.D.
G28
Configuration
Engine/Motor

1 SW-07doc012020Table of Contents
Table of Contents Section-Page
SECTION 1 SAFETY & GENERAL INFORMATION 1-1
1.1 Blade Handling.......................................................................................1-2
1.2 Sawmill Setup.........................................................................................1-3
1.3 Sawmill Operation..................................................................................1-3
1.4 Sawmill Maintenance .............................................................................1-5
1.5 Safety Instructions..................................................................................1-6
1.6 Belt Sizes..............................................................................................1-17
1.7 Blade Sizes ...........................................................................................1-17
1.8 Cutting Capacity...................................................................................1-18
1.9 Engine/Motor Specifications ................................................................1-19
1.10 Noise Level...........................................................................................1-19
1.11 Dust Extractor Specifications...............................................................1-19
1.12 Overall Dimensions ..............................................................................1-21
1.13 Chains ...................................................................................................1-22
1.14 Hydraulic System .................................................................................1-22
1.15 Components..........................................................................................1-23
1.16 LT40 Series DH - Hydraulic Schematic...............................................1-26
1.17 LT40 Series DH5 Hydraulic Schematic...............................................1-28
1.18 LT40 Series DH7 Hydraulic Schematic...............................................1-30
1.19 LT40 Series DH - Hydraulic Components ...........................................1-32
1.20 LT40 Series DH - Hydraulic Hoses......................................................1-33
SECTION 2 SETUP & OPERATION 2-1
2.1 Sawmill Setup.........................................................................................2-1
2.2 Stationary Sawmill Setup .......................................................................2-4
2.3 Portable Sawmill Setup ..........................................................................2-8
2.4 Middle Track Cover .............................................................................2-11
2.5 Replacing The Blade ............................................................................2-12
2.6 Tensioning The Blade...........................................................................2-12
2.7 Tracking The Blade ..............................................................................2-13
2.8 Starting The Engine (or Motor)............................................................2-14
2.9 Board Return ........................................................................................2-16
2.10 Hydraulic Control Operation................................................................2-18
2.11 Loading, Turning, and Clamping Logs ................................................2-21
2.12 Up/Down Operation .............................................................................2-23
2.13 Blade Guide Arm Operation.................................................................2-24
2.14 Clutch/Brake Operation........................................................................2-25
2.15 Power Feed Operation ..........................................................................2-26
2.16 Cutting The Log ...................................................................................2-28
2.17 Edging...................................................................................................2-29
2.18 Blade Height Scale ...............................................................................2-29
2.19 Water Lube Operation ..........................................................................2-32
2.20 Preparing The Sawmill For Towing .....................................................2-33

Table of Contents Section-Page
Table of Contents SW-07doc0120202
SECTION 3 MAINTENANCE 3-1
3.1 Wear Life................................................................................................3-1
3.2 Blade Guides ..........................................................................................3-2
3.3 Sawdust Removal ...................................................................................3-3
3.4 Carriage Track, Wiper & Scrapers .........................................................3-3
3.5 Vertical Mast Rails.................................................................................3-4
3.6 Drum Switches .......................................................................................3-4
3.7 Miscellaneous .........................................................................................3-5
3.8 Blade Tensioner......................................................................................3-5
3.9 Blade Wheel Belts ..................................................................................3-6
3.10 Brake Strap Adjustment .........................................................................3-7
3.11 Drive Belt Adjustment............................................................................3-8
3.12 Clutch Handle Adjustment ...................................................................3-11
3.13 Autoclutch Option Adjustment.............................................................3-12
3.14 Hydraulic System .................................................................................3-13
3.15 Drive Bearing .......................................................................................3-14
3.16 Up/Down System..................................................................................3-15
3.17 Power Feed ...........................................................................................3-17
3.18 Safety Devices Inspection ....................................................................3-19
SECTION 4 TROUBLESHOOTING GUIDE 4-1
4.1 Sawing Problems....................................................................................4-1
4.2 Electrical Problems.................................................................................4-3
4.3 Power Feed Problems .............................................................................4-4
4.4 Power Feed Circuit Troubleshooting......................................................4-6
4.5 Hydraulic Problems ................................................................................4-7
4.6 Engine/Motor and Drive Pulleys Alignment..........................................4-9
4.7 Power Feed Preliminary Test ...............................................................4-10
4.8 Power Feed Mechanical Test................................................................4-10
4.9 Fuse Terminal Extension Stud..............................................................4-10
4.10 Circuit Breaker Operation ....................................................................4-11
SECTION 5 SAWMILL ALIGNMENT 5-1
5.1 Pre-Alignment Procedures......................................................................5-1
5.2 Frame Setup............................................................................................5-1
5.3 Blade Installation And Alignment..........................................................5-2
5.4 Saw Head Slide Pad Adjustment............................................................5-4
5.5 Adjusting The Lower Track Rollers.......................................................5-7
5.6 Adjusting Bed Rails To The Blade.........................................................5-9
5.7 Blade Guide Arm Vertical Adjustment ................................................5-13
5.8 Blade Guide Arm Horizontal Adjustment............................................5-14
5.9 Aligning the Blade Guides ...................................................................5-16
5.10 Blade Deflection...................................................................................5-17

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Table of Contents Section-Page
5.11 Blade Guide Vertical Tilt Adjustment..................................................5-18
5.12 Blade Guide Spacing ............................................................................5-20
5.13 Horizontal Tilt Adjustment...................................................................5-21
5.14 Blade Guide Block Adjustment............................................................5-22
5.15 Horizontal Adjustment of Side Supports..............................................5-23
5.16 Vertical Adjustment of Side Supports..................................................5-24
5.17 Clamp Stop/Stop Bolt Adjustment .......................................................5-25
5.18 Saw Head Tilt .......................................................................................5-26
5.19 Blade Height Scale Adjustment............................................................5-27
5.20 Board Return Bracket ...........................................................................5-28

Safety & General Information
Safety & General Information HDdoc012020 1-1
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 manufac-
turer’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 Rep-
resentative 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 fil-
ters and fuel filters.
Safety instructions are listed in this section by the following operations:
Blade Handling
Sawmill Setup
Sawmill Operation
Sawmill Maintenance

Safety & General Information
Blade Handling
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1-2 HDdoc012020 Safety & General Information
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.

Safety & General Information
Sawmill Setup
Safety & General Information HDdoc012020 1-3
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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. See
Section 1.8 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 train-
ing 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.
!

Safety & General Information
Sawmill Operation
1
1-4 HDdoc012020 Safety & General Information
DANGER! Maintain a clean and clear path for all necessary movement
around the mill and lumber stacking areas. Failure to do so will result in seri-
ous injury.
DANGER! Always be sure the blade is disengaged and all persons are out
of the path of the blade before starting the engine or motor. 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 saw-
mill. Failure to do so may result in serious injury or death.
WARNING! Always make sure log is clamped securely before sawing. Fail-
ure 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 flam-
mable 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 half-
way 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 veloc-
ity fuse valves on the loader cylinders. These valves control hydraulic flow
and are necessary to prevent the loading arm from collapsing during use.

Safety & General Information
Sawmill Maintenance
Safety & General Information HDdoc012020 1-5
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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 big-
ger 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.

Safety & General Information
Safety Instructions
1
1-6 HDdoc012020 Safety & General Information
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 state-
ments 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
!

Safety & General Information
Observe Safety Instructions
Safety & General Information HDdoc012020 1-7
1
applicable safety instructions including dangers, warnings, and cau-
tions.
Only adult persons who have read and understood the entire opera-
tor'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 regard-
ing the ownership and operation of your Wood-Mizer sawmill. All
Wood-Mizer sawmill owners are encouraged to become thoroughly
familiar with these applicable laws and comply with them fully while
using the machine.

Safety & General Information
Wear Safety Clothing
1
1-8 HDdoc012020 Safety & General Information
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.
!

Safety & General Information
Keep Persons Away
Safety & General Information HDdoc012020 1-9
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 seri-
ous 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 com-
ponents 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.

Safety & General Information
Use Proper Maintenance Procedures
1
1-10 HDdoc012020 Safety & General Information
WARNING! Use extreme caution when spinning the blade wheels by
hand. Make sure hands are clear of blade and wheel spokes before
spinning. Failure to do so may result in serious injury.
Use Proper Maintenance Procedures
DANGER! Make sure all electrical installation, service and/or mainte-
nance 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.
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

Safety & General Information
Keep Safety Labels In Good Condition
Safety & General Information HDdoc012020 1-11
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 sec-
onds 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.
!

Safety & General Information
Keep Safety Labels In Good Condition
1
1-12 HDdoc012020 Safety & General Information
See Table 1-1. Pictogram decals used to warn and inform the user about danger in the LT40.
TABLE 1-1
Decal View W-M No. Description
096317 CAUTION! Read thoroughly the manual
before operating the machine. Observe all
safety instructions and rules when
operating the sawmill.
099220 CAUTION! Close all guards and covers
before starting the machine.
099219 Blade tension. Turning the bolt clockwise
will increase the blade tension and turning
the bolt counterclockwise will decrease the
tension.
099220
099219
+