woodmizer LT70M AH Super User manual

Table of Contents Section-Page
Table of Contents SW-07doc0217161

Wood-Mizer®
Safety, Setup, Operation
& Maintenance Manual
LT70M AH Super rev. A9.00
Safety is our #1 concern! Read and understand
all safety information and instructions before oper-
ating, setting up or maintaining this machine.
August 2006
Form #1059
This is the original language
for the manual.

2 SW-07doc021716Table of Contents
Table of Contents Section-Page
SECTION 1 SAFETY & GENERAL INFORMATION 1-1
1.2 Blade Handling.......................................................................................1-2
1.3 Sawmill Setup.........................................................................................1-2
1.4 Sawmill Operation..................................................................................1-3
1.5 Sawmill Maintenance .............................................................................1-5
1.6 Safety Instructions..................................................................................1-5
1.7 Belt Sizes..............................................................................................1-11
1.8 Blade Sizes ...........................................................................................1-16
1.9 Cutting Capacity...................................................................................1-16
1.10 Engine/Motor Specifications ................................................................1-17
1.11 Noise Level...........................................................................................1-18
1.12 Overall Dimensions ..............................................................................1-18
1.13 Chains ...................................................................................................1-19
1.14 Hydraulic system ..................................................................................1-19
1.15 Dust Extractor Specifications...............................................................1-20
1.16 Components..........................................................................................1-20
1.17 LT40/70 S/M AH Hydraulic Schematic ............................................1-22
1.18 LT40/70 S/M AH Hydraulic Components ...........................................1-23
1.19 LT40/70 S/M Hydraulic Hoses ...........................................................1-24
1.20 Hydraulic Blade Tensioner Assembly..................................................1-26
SECTION 2 SETUP & OPERATION 2-1
2.1 Sawmill Setup.........................................................................................2-1
2.2 Stationary Sawmill Setup .......................................................................2-3
2.3 Portable Sawmill Setup ..........................................................................2-9
2.4 Middle track cover................................................................................2-11
2.5 Replacing The Blade ............................................................................2-13
2.6 Tensioning the blade.............................................................................2-14
2.7 Tracking the blade ................................................................................2-16
2.8 Starting The Engine (or Motor)............................................................2-18
2.9 Hydraulic Control Operation................................................................2-19
2.10 Loading, Turning, And Clamping Logs ...............................................2-21
2.11 Up/Down Operation .............................................................................2-24
2.12 Blade Guide Arm Operation.................................................................2-25
2.13 Power Feed Operation ..........................................................................2-26
2.14 Cutting The Log ...................................................................................2-28
2.15 Wireless Control Panel (option) ...........................................................2-29
2.16 Edging...................................................................................................2-30
2.17 Optional Cutting Procedure..................................................................2-31
2.18 Blade Height Scale ...............................................................................2-31
2.19 Water Lube Operation ..........................................................................2-33
2.20 Preparing The Sawmill For Transportation..........................................2-34

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Table of Contents SW-07doc0217163
SECTION 3 MAINTENANCE 3-1
3.1 Wear Life................................................................................................3-1
3.2 Blade Guides ..........................................................................................3-2
3.3 Sawdust Removal ...................................................................................3-5
3.4 Carriage Track, Wiper & Scrapers .........................................................3-5
3.5 Vertical Mast Rails.................................................................................3-7
3.6 Drum Switches .......................................................................................3-7
3.7 Miscellaneous Maintenance ...................................................................3-7
3.8 Drive Belt Adjustment............................................................................3-8
3.9 Up/Down System....................................................................................3-9
3.10 Power Feed ...........................................................................................3-11
3.11 Hydraulic System .................................................................................3-11
3.12 Safety Devices Inspection ....................................................................3-13
SECTION 4 TROUBLESHOOTING 4-1
4.1 Sawing Problems....................................................................................4-1
4.2 Electrical Problems.................................................................................4-3
4.3 Power Feed Problems .............................................................................4-4
4.4 Hydraulic Problems ................................................................................4-6
4.5 Engine/Motor Drive Pulleys Alignment.................................................4-9
4.6 Power Feed Variable Speed Switch Test................................................4-9
4.7 Power Feed Preliminary Test .................................................................4-9
4.8 Power Feed Mechanical Test..................................................................4-9
4.9 Circuit Breaker Operation ....................................................................4-10
SECTION 5 SAWMILL ALIGNMENT 5-1
5.1 Routine Alignment Procedure:...............................................................5-1
5.2 Horizontal Adjustment of Side Supports..............................................5-14
5.3 Complete Alignment Procedure ...........................................................5-16
SECTION 6 MOTOR BRAKE 6-1
6.1 Maintenance/repair .................................................................................6-1
6.2 Maintenance ...........................................................................................6-2

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Wood-Mizer is committed to providing you with the latest technology, best quality and
strongest customer service available on the market today. We continually evaluate our
customers’ needs to ensure we’re meeting current wood-processing demands. Your com-
ments and suggestions are welcome.
If You Need To Order Parts...
From Europe call our European Headquarters and Manufacturing Facility in Kolo, Poland
at [phone]. From the continental U.S., call our toll-free Parts hotline at
1-800-448-7881. Please have the vehicle identification number and your customer num-
ber ready when you call. Wood-Mizer will accept these methods of payment:
Visa, Mastercard, or Select Purchase
COD
Prepayment
Net 15 (with approved credit)
Be aware that shipping and handling charges may apply. Handling charges are based on
size and quantity of order. In most cases, items will ship on the day they are ordered.
Second Day and Next Day shipping are available at additional cost.
If You Need Service...
From Europe call our European Headquarters and Manufacturing Facility in Kolo, Poland
at [phone]. From the continental U.S., call us toll-free at 1-800-525-8100. Ask to
speak with a Customer Service Representative. Please have your vehicle identification
number and your customer number ready when you call. The Service Representative can
help you with questions about alignment of your mill, blade sharpening, or cutting a partic-
ular species of wood. He also can schedule you for a service call.
Office Hours: All times are Eastern Standard Time. Please remember that Indiana does
not go on Daylight Savings Time in the summer.
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.
*Wood-Mizer®is a registered trademark of Wood-Mizer Products, Inc.
Country Monday - Friday Saturday Sunday
U.S., Indiana 8 a.m. to 5 p.m. 8 a.m. to 4 p.m. Closed
Poland 8 a.m. to 4:30 p.m. 8 a.m. to 1 p.m. Closed

HDSdoc021716 2
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.
456 A 7 24 1 X J N A F9 017 F9 .01
V.I.N. DESCRIPTION
V.I.N. LOCATIONS
Company Identification Number
456=Wood-Mizer Indiana
Weight Class; A=Under 1300 kg B=1300 -1800kg
C=1800-2200 kg D=2200kg-3000kg
Product No.; 1=LT15, 2=LT20, 4=LT40 Series,
7=LT70 Series
Length of the Trailer;
20=20 Ft., 24=24’, 35=35’
Number of axles on the trailer
Year of Manufacture;
G=2009, H=2010, J=2011, K=2012, L=2013, M=2014
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

3 HDSdoc021716
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
LT70
Basic Sawmill I.D.
E25
Configuration
Engine/Motor

Safety & General Information
Safety & General Information HDSdoc021716 1-1
1
SECTION 1 SAFETY & GENERAL INFORMATION
1.1 Safety Symbols
The following symbols and signal words call your attention to instructions concerning your personal safety.
Be sure to observe and follow these instructions.
The word 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 to persons or 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

Safety & General Information
Blade Handling
1
1-2 HDSdoc021716 Safety & General Information
Sawmill Maintenance
1.2 Blade Handling
DANGER! Always disengage the blade and shut off the sawmill engine before
changing the blade. Failure to do so may 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. Failure to do so may result
in serious injury.
1.3 Sawmill Setup
WARNING! Chock the trailer wheels to prevent movement before unhitching it
from the towing vehicle. Failure to do so will result in serious injury or death.
WARNING! Put front outrigger down before moving cutting head from the rest
position. Failure to do so 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 will 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 will 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.
CAUTION! Dismount hydraulic log turner leg before transportation in mobile
sawmills.

Safety & General Information
Sawmill Operation
Safety & General Information HDSdoc021716 1-3
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1.4 Sawmill Operation
IMPORTANT! The sawmill is intended for sawing wood only. The sawmill
must not be used for other purposes such as cutting ice, metal or any other
materials. See Section 1.9 for log size capacities of the machine.
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 closed.
DANGER! Always keep hands away from moving bandsaw blade. Failure to
do so may result in serious injury.
DANGER! Stay clear of the area between the trailer axle and saw carriage.
Failure to do so may 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 may
result in serious injury.
DANGER! Maintain a clean and clear path for all necessary movement
around the mill and lumber stacking areas. Failure to do so may result in
serious injury.
DANGER! Always be sure the blade is disengaged and all persons are away
from the blade before starting the engine. Failure to do so may result in
serious injury.
DANGER! Keep all persons out of the path of returning boards. Failure to do
so may 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 will result in serious injury or death.
!

Safety & General Information
Sawmill Operation
1
1-4 HDSdoc021716 Safety & General Information
WARNING! Always make sure log is clamped securely before sawing. Failure
to do so will result in serious injury or death.
WARNING! Always leave loading arm halfway up while log is on sawmill bed.
Failure to do so will result in serious injury or death.
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. Failure to do so will result in serious injury, death
or damage to the equipment.
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.
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 will 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. Damage to the sawmill may result.
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! 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. Damage to
the sawmill may result.
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 sawmill’s work-stand should be equipped with a 4 kg or bigger
dry powder extinguisher.

Safety & General Information
Sawmill Maintenance
Safety & General Information HDSdoc021716 1-5
1
1.5 Sawmill Maintenance
WARNING! Always secure the cutting head with a chain or a brace before
adjusting the up/down chain. The cutting head may fall, causing severe injury
or death.
WARNING! Always secure the cutting head with a chain or a brace before
removing the up/down motor belt. The cutting head may fall, causing severe
injury or death.
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.
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! 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.
1.6 Safety Instructions

Safety & General Information
Observe Safety Instructions
1
1-6 HDSdoc021716 Safety & General Information
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 saw-
mill. 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 applicable
safety instructions including dangers, warnings, and cautions.
Only adult persons who have read and understood the entire operator's man-
ual 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 applica-
ble 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.
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.
!

Safety & General Information
Keep sawmill And Area Around sawmill Clean
Safety & General Information HDSdoc021716 1-7
1
WARNING! Always wear eye, ear, respiration, and foot protection when oper-
ating 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.
Keep Persons Away
!

Safety & General Information
Keep Hands Away
1
1-8 HDSdoc021716 Safety & General Information
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.
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 applica-
ble electrical codes.

Safety & General Information
Keep Safety Labels In Good Condition
Safety & General Information HDSdoc021716 1-9
1
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 saw-
mill! 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 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.
Keep Safety Labels In Good Condition

Safety & General Information
Keep Safety Labels In Good Condition
1
1-10 HDSdoc021716 Safety & General Information
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
Belt Sizes
Safety & General Information HDSdoc021716 1-11
1
1.7 Belt Sizes
See Table 1-1. Belt sizes for the LT70AC are shown.
See Table 1-2. Pictogram decals used to warn and inform the user about danger in the LT70.
Description Belt Size Wood-Mizer
Part #
Motor Drive Belt (E25) 3B/HB
2462La
089464
Up/Down Drive Belt (AC mills) HA-670 091328
Blade Pulley Belts B72.5 1
1 To insure proper blade tracking, use Goodyear, Dayco Super II, or Browning
belts only.
017922
TABLE - 0-0
TABELA 1-2
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.
099220

Safety & General Information
Belt Sizes
1
1-12 HDSdoc021716 Safety & General Information
099221 CAUTION! Keep all persons a safe
distance away from work area when
operating the machine.
098176 CAUTION! Keep away from debarker
blade!
096316 CAUTION! Do not open or close the
electric box when the switch is not in the
“0” position.
TABELA 1-2
099221
098176