woodmizer LT60AHD Manual instruction

Wood-Mizer® Sawmill
Safety, Setup, Operation
& Maintenance Manual
LT60AHD rev. A3.01
LT70AHD rev. A3.01
Safety is our #1 concern! Read and understand all
safety information and instructions before operating,
setting up or maintaining this machine.
June 2002
Form #1051
!

Table of Contents Section-Page
2 HDSdoc101303 Table of Contents
SECTION 1 SAFETY & GENERAL INFORMATION 1-1
1.1 Blade Handling.......................................................................................................... 1-2
1.2 Sawmill Setup............................................................................................................ 1-3
1.3 Sawmill Operation..................................................................................................... 1-4
1.4 Sawmill Maintenance ................................................................................................ 1-7
1.5 Belt Sizes...................................................................................................................1-9
1.6 Blade Sizes .............................................................................................................. 1-10
1.7 Cutting Capacity...................................................................................................... 1-11
1.8 Engine/Motor Specifications ................................................................................... 1-12
1.9 Overall Dimensions ................................................................................................. 1-13
1.10 Chains......................................................................................................................1-13
1.11 Hydraulic System .................................................................................................... 1-13
1.12 Components............................................................................................................. 1-14
1.13 LT60AHD/LT70AHD Hydraulic Schematic ........................................................ 1-15
1.14 LT60AHD/LT70AHD Super Hydraulic Components ............................................ 1-16
1.15 LT60AHD/LT70AHD Hydraulic Hoses ................................................................. 1-17
SECTION 2 SETUP & OPERATION 2-1
2.1 Stationary Sawmill Setup .......................................................................................... 2-1
2.2 Portable Sawmill Setup ............................................................................................. 2-4
2.3 Middle Track Cover .................................................................................................. 2-6
2.4 Replacing The Blade ................................................................................................. 2-7
2.5 Tensioning The Blade................................................................................................ 2-8
2.6 Tracking The Blade ................................................................................................... 2-9
2.7 Starting The Engine (or Motor)............................................................................... 2-12
2.8 Hydraulic Control Operation................................................................................... 2-13
2.9 Loading, Turning, And Clamping Logs .................................................................. 2-15
2.10 Up/Down Operation ................................................................................................ 2-18
2.11 Blade Guide Arm Operation.................................................................................... 2-20
2.12 Power Feed Operation ............................................................................................. 2-21
2.13 Cutting The Log ...................................................................................................... 2-23
2.14 Edging......................................................................................................................2-25
2.15 Optional Cutting Procedure .................................................................................... 2-26
2.16 Blade Height Scale .................................................................................................. 2-27
2.17 Water Lube Operation ............................................................................................. 2-30
2.18 Preparing The Sawmill For Towing ........................................................................ 2-32

Table of Contents Section-Page
3 HDSdoc101303 Table of Contents
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 ............................................................................................................ 3-8
3.8 Blade Wheel Scrapers.............................................................................................. 3-10
3.9 Drive Belt Adjustment............................................................................................. 3-11
3.10 Hydraulic System .................................................................................................... 3-12
3.11 Up/Down System..................................................................................................... 3-13
3.12 Power Feed .............................................................................................................. 3-15
3.13 Hydraulic System .................................................................................................... 3-16
SECTION 4 TROUBLESHOOTING GUIDE 4-1
4.1 Sawing Problems ....................................................................................................... 4-1
4.2 Electrical Problems.................................................................................................... 4-3
4.3 Power Feed Problems................................................................................................ 4-5
4.4 Power Feed Circuit Troubleshooting......................................................................... 4-7
4.5 Hydraulic Problems ................................................................................................... 4-9
4.6 Engine/Motor and Drive Pulleys Alignment........................................................... 4-13
4.7 Power Feed Variable Speed Switch Test................................................................. 4-14
4.8 Power Feed Preliminary Test .................................................................................. 4-14
4.9 Power Feed Mechanical Test................................................................................... 4-14
4.10 Hydraulic Pressure Test........................................................................................... 4-15
4.11 Circuit Breaker Operation ....................................................................................... 4-16
SECTION 5 SAWMILL ALIGNMENT 5-1
5.1 Routine Alignment Procedure: .................................................................................. 5-1
5.2 Complete Alignment Procedure .............................................................................. 5-19

Safety & General Information
Safety & General Information HDSdoc101303 1-1
1
SECTION 1 SAFETY & GENERAL INFORMATION
This symbol calls your attention to instructions concerning your personal safety. Be sure
to observe and follow these instructions. This symbol accompanies a signal word. 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 per-
sons or equipment. Read all safety instructions before operating this equipment and
observe all safety warnings!
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 includ-
ing 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 distribu-
tor, 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 thor-
oughly familiar with these applicable laws and comply with them fully while using or tow-
ing 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

Safety & General Information
Blade Handling
1
1-2 HDSdoc101303 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 HDSdoc101303 1-3
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 mov-
ing 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 outrig-
ger 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.

Safety & General Information
Sawmill Operation
1
1-4 HDSdoc101303 Safety & General Information
1.3 Sawmill Operation
DANGER! Make sure all guards and covers are in place
and secured before operating or towing the sawmill. Failure
to do so may result in serious injury.
Be sure the blade housing and pulley covers are 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.
DANGER! Maintain a clean and clear path for all necessary
movement around the mill and lumber stacking areas. Fail-
ure 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 pro-
tection 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.

Safety & General Information
Sawmill Operation
Safety & General Information HDSdoc101303 1-5
1
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! 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.
WARNING! Use ONLY water with the water lube acces-
sory. 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 bat-
tery.

Safety & General Information
Sawmill Operation
1
1-6 HDSdoc101303 Safety & General Information
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 collaps-
ing during use.
CAUTION! Do not try to force the saw head beyond its
upper and lower travel limits. Damage to the up/down sys-
tem 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.

Safety & General Information
Sawmill Maintenance
Safety & General Information HDSdoc101303 1-7
1
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 cut-
ting head may fall, causing severe injury or death.
WARNING! Drum switch grease contains Petroleum Hydro-
carbon Lubricant. Eye and skin irritant. If introduced into
eyes, flush with water for at least 15 minutes. If film or irrita-
tion 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! Do not over-grease the blade guide bearings.
Over-greasing will push the seals out of the bearings caus-
ing premature failure.
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 col-
lect 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.

Safety & General Information
Sawmill Maintenance
1
1-8 HDSdoc101303 Safety & General Information
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 prop-
erly adjusted to secure the carriage on the track rail. Failure
to properly adjust the stop bolts can cause saw head dam-
age, 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. Pres-
sure above 2000 p.s.i. may also damage the hydraulic
hoses.
CAUTION! Failure to remove sawdust buildup from the bat-
tery box lid and/or track rail cover could result in damage to
these parts when the saw head is lowered to its lowest
position.

Safety & General Information
Belt Sizes
Safety & General Information HDSdoc101303 1-9
1
1.5 Belt Sizes
See Table 1-1. Belt sizes for the LT60/70/80HD are shown.
Description Belt Size Wood-Mizer
Part #
Motor Drive Belt ( E25 ) 3B/HB
2462La
089464
Engine Drive Belt ( D42 ) 3B/HB
2462La
089464
Alternator Belt ( DC mills only ) 6PK775 089465
Up/Down Drive Belt HA-630 090558
Blade Pulley Belts B72.5 1
1 To insure proper blade tracking, use Goodyear, Dayco Super II, or Brown-
ing belts only.
017922
TABLE 1-1

Safety & General Information
Blade Sizes
1
1-10 HDSdoc101303 Safety & General Information
1.6 Blade Sizes
See Table 1-2. Wood-Mizer TRU•SHARP™ offers three types of blades to provide effi-
cient sawing for all models of sawmills. The engine/motor size of your sawmill and the
type of wood you saw should determine which blade you choose for optimum perfor-
mance.
See The Blade Handbook for blade hook angle, tooth height, and tooth set specifica-
tions.
Softwood Medium
Hardwood
Frozen Timber or
Dense Hardwood
5-15HP Gas .042 x 1 1/4” x 10° .035 x 1 1/4” x 10° .042 x 1 1/4” x 10°
7.4-11kW (10-15HP) Electric
16-24HP Gas
30HP Diesel
.045 x 1 1/2” x 10° or
.045 x 1 1/4” x 10° 1
1 Customer may choose preferred blade.
.042 x 1 1/4” x 10° .045 x 1 1/4” x 9° 2
2 TRU•SHARP™ 9° 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.
15-18.5kW (20-25HP) Electric
40HP Diesel
.045 x 1 1/2” x 10° or
.045 x 1 1/4” x 10° 1
.045 x 1 1/2” x 10° or
.045 x 1 1/4” x 10° 1.045 x 1 1/4” x 9° 2
TABLE 1-2

Safety & General Information
Cutting Capacity
Safety & General Information HDSdoc101303 1-11
1
1.7 Cutting Capacity
See Table 1-3. The LT60/70/80AHD can accept logs as listed below.
LT60AHD LT70AHD LT80AHD
Maximum Log Diameter 36,6” ( 93 cm ) 36,6” ( 93 cm ) 36,6” ( 93 cm )
Maximum Log Length 1
1 Added length capacity provided with bed extension options. Add length of bed extension to
sawmill length capacity (ie. BX12, add 12’).
15’-11”16’-8”
(4.95.1 m )
20’-2”21’-0” ( 6.16.4
m )
27’-6” ( 8.46.4 m )
Maximum Log Weight 2
2 Sawmills equipped with bed extensions can accept heavier logs if the weight is distributed so
neither the sawmill or extension is loaded beyond the 4400 lbs. (1996 Kg) limit. Loading logs
heavier than 4400 lbs. (1996 Kg) on a sawmill equipped with a bed extension requires auxil-
iary log handling equipment.
4400 lbs. ( 1996 kg) 4400 lbs. (1996 kg) 6614 lbs. (3000 kg)
TABLE 1-3

Safety & General Information
Engine/Motor Specifications
1
1-12 HDSdoc101303 Safety & General Information
1.8 Engine/Motor Specifications
See Table 1-4. .
See Table 1-5. The noise level of the motors in Wood-Mizer sawmills.
Engine/Motor Type 1
1 Use diesel fuel for D42.
Manufacturer Model No. Power Other Specifications
42HP Diesel Kubota, Japan V1505-TE 42KM 4 cylinders, 1498 cm3
25HP Electric Motor 2
2 The electric motors supplied on Wood-Mizer sawmills carry a rating assigned by the motor manufacturer
for the continuous duty operation of the motor, potentially, 24 hours per day, day after day. This rating is
useful in sizing motors for use in applications like blowers for heating and ventilation that are never cycled
off except for system maintenance.
Indukta SA,
Poland
Sg 160L-2 18,5kW 33,8 A, 2930 RPM
TABLE 1-4
Idle Engaged
Sawmill with electric motor 79 dB (A) 93 dB (A)
TABLE 1-5

Safety & General Information
Overall Dimensions
Safety & General Information HDSdoc101303 1-13
1
1.9 Overall Dimensions
See Table 1-6. The overall dimensions of the Wood-Mizer sawmills are listed below.
1.10 Chains
See Table 1-7. The load capacity of the chains is listed below.
1.11 Hydraulic System
See Table 1-8. The specifications of the hydraulic system are shown below.
Model Length 1
1 Length from hitch to chain bracket.
Width 2
2 Width from fender to fender.
Width
(Operating Position
with Loading Arms)
Height 3
3 Height from ground to mast. Placing head in maximum position will add to total height.
Weight Weight
w/Trailer
LT60HD 21’ 11"
(6.7 m)
6’ 6"
(2 m)
8’ 2"
(2.5 m)
7’ 8"
(2.4 m)
3291 lbs.
(1481 kg)
3716 lbs.
(1672 kg)
LT70HD 26’ 2"
(8 m)
6’ 6"
(2 m)
8’ 2"
(2.5 m)
7’ 8"
(2.4 m)
3491 lbs.
(1571 kg)
3916 lbs.
(1762 kg)
TABLE 1-6
Load Capacity According to ISO Nr 08A-1
Power Feed Chain 22700N
Up/Down Chain 45400N
TABLE 1-7
Hydraulic Pump #M-300-0230 Monarch
Pressure Rating 17,25MPa (2500 PSI)
Max. Pressure 19MPa (2750 PSI)
TABLE 1-8

Safety & General Information
Components
1
1-14 HDSdoc101303 Safety & General Information
1.12 Components
See Figure 1-1. The major components of the Wood-Mizer LT60HD/70HD are shown
below.
FIG. 1-1
Control
Box
Hydraulic
Control Box
Adjustable
Outrigger Leg
w/Trailer Option
Optional
Trailer Axle
Engine Drive
Assembly
Hydraulic
Log Loader

Safety & General Information
LT60AHD/LT70AHD Hydraulic Schematic
Safety & General Information HDSdoc101303 1-15
1
1.13 LT60AHD/LT70AHD Hydraulic Schematic
FIG. 1-2 HYDRAULIC SCHEMATIC.
FIG. 1-3 HYDRAULIC LAYOUT DIAGRAM.
AC0046
H13 H13
H8
H5
H16
H11
H13
H15
H14
H1
H2
H7
H6
H12
H3
H9
CLAMP IN/OUT
CLAMP UP/DOWN
CLAMP
UP/DOWN
CLAMP
IN/OUT TURNER
LOADER
A
RM
RELIEF VALVE SETTING 2000 PSI
RELIEF VALVE SETTING 2250 PSI
TOEBOARD
TOEBOARD
FRONT
TOEBOARD
REAR
TOEBOARD
TURNER
SIDE SUPPORT
LOADER ARM
LOADER ARM
H4
H17
H10
3
/
8
3 x 7 7/8
1 ½ x 10
1 ½ x 6
1 ½ x 6
2 x 6
2 1/2 x 8
3 x 8
3 x 8
C1 C2 C3 C4 C5 C6 C7 C8
M1
P1
V1
V2 V3
V4 V5
F1
G1
C1 C2 C3
H2
H7 H6
H9
H10
H11
H12
H13
H14
H15
H16
H17
H8
H5
H4
H3
C4 C5 C6 C7 C8
V1
M1 P1
F1
V2
V3
V4 V5
(Shown with handles down)
Clamp
In/Out
Clamp
Up/Down Turner Side
Supports Front
Toe Board
Rear
Toe Board
Log Loader
AC0045
G1

Safety & General Information
LT60AHD/LT70AHD Super Hydraulic Components
1
1-16 HDSdoc101303 Safety & General Information
1.14 LT60AHD/LT70AHD Super Hydraulic Components
ID Mfg. Part No. Manufacturer Wood-Mizer
Part #
Description
C1 015090 J-D Hydraulic 017275 Hyd. Cylinder, 3" Bore X 7 7/8" Stroke
C2 PMC-19410 Prince Mfg. 015053 Hyd. Cylinder, 1 1/2" Bore X 10" Stroke
C3 P12846 J-D Hydraulic P12846 Hyd. Cylinder, 2 1/2" Bore X 8" Stroke
C4 P12845 J-D Hydraulic P12845 Hyd. Cylinder, 2" Bore X 6" Stroke
C5, C6 014482 J-D Hydraulic 014482 Hyd. Cylinder, 1 1/2" Bore x 6" Stroke
C7, C8 P12847 J-D Hydraulic P12847 Hyd. Cylinder, 3" Bore X 8" Stroke
M1, P1 --- Hydromar,
Szamotuly
086789 Hydraulic Unit (Container + Hydraulic
Pump + Motor), 14.5 l/min.
V1 HDS11/6-6 Betro Inc. 015260 Valve, 6-Handle
V2, V3 49004-700 Vonberg 015484 Sequence Valve
V4, V5 28000-502-2.5 Vonberg 015750 Valve, Hydraulic Velocity Fuse
F1 S28 Hyd. Filter Supply P20301 Filter, Hydraulic Fluid Cartridge
G1 CF-1P-210A Pressure Devices
Inc.
P10052 Gauge, 3000 PSI Hydraulic
TABLE 1-9