woodmizer 1992 LT30HD Manual

Wood-Mizer®Sawmill
Safety, Setup, Operation
& Maintenance Manual
1992 LT30HD rev. C7 - F7
1992 LT40HD rev. C7 - F7
Safety is our #1 concern! Read and understand all
safety information and instructions before operating, set-
ting up or maintaining this machine.
October 1996
Form #625
!

ii HD92doc042701
This manual is to replace or to be used with all previous information received on the
Wood-Mizer®* sawmill. All future mailings will be an addition to or a revision of individual
sections of this manual as we obtain new information.
The information and instructions given in this manual do not amend or extend the limited
warranties for the equipment given at the time of purchase.
IfYouNeedToOrderParts...
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 number 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 your sawmill was purchased outside of the United States, contact your distributor for
replacement parts.

HD92doc042701iii
IfYouNeedService...
From the continental U.S., call us toll-free at 1-800-525-8100. Ask to speak with a Cus-
tomer 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 particular 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 Day-
light Savings Time in the summer.
Monday - Friday8 a.m. to 5 p.m.
Saturday8 a.m. to 4 p.m.
If your sawmill was purchased outside the United States, contact the distributor for ser-
vice.
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.
!

iv HD92doc042701
Your Vehicle Identification Number And
Customer Number
Each Wood-Mizer sawmill has a 17-digit Vehicle Identification Number (VIN). See the fig-
ure below for VIN locations. See the chart at the right for VIN description.
Each sawmill is also identified with a model number which includes the base model and
the engine/motor configuration. An ’s’ after the model number indicates the model is
approved for sale in countries that have adopted German "Gerprüfte Sicherheit: (G.S.)
safety standards. The model number is located on the middle blade housing cover. See
the figure at the right 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.
VIN: ___________________________
Customer No: ___________________
Model No: ______________________
VEHICLE IDENTIFICATION NUMBER LOCATIONS.

v HD92doc042701
V.I.N. DESCRIPTION.
MODEL NUMBER DESCRIPTION.

Table of Contents Section-Page
Table of Contents HD92doc042701 i
SECTION 1 SAFETY & GENERAL INFORMATION 1-1
1.1 Blade Handling.......................................................................................................... 1-1
1.2 Sawmill Setup............................................................................................................ 1-1
1.3 Sawmill Operation..................................................................................................... 1-2
1.4 Belt Sizes................................................................................................................... 1-4
1.5 Blade Sizes ................................................................................................................ 1-5
1.6 Cutting Capacity........................................................................................................ 1-6
1.7 Engine/Motor Specifications..................................................................................... 1-7
1.8 Overall Dimensions................................................................................................... 1-8
1.9 Components............................................................................................................... 1-9
1.10 Hydraulic Schematic ...............................................................................................1-10
1.11 Hydraulic Components............................................................................................ 1-12
1.12 Hydraulic Hoses ...................................................................................................... 1-14
SECTION 2 SETUP & OPERATION 2-1
2.1 Stationary Sawmill Setup.......................................................................................... 2-1
2.2 Portable Sawmill Setup ............................................................................................. 2-2
2.3 Preparing The Sawmill For Operation ...................................................................... 2-5
2.4 Replacing The Blade ................................................................................................. 2-6
2.5 Tensioning The Blade................................................................................................ 2-7
2.6 Tracking The Blade................................................................................................... 2-8
2.7 Starting The Engine (or Motor)............................................................................... 2-10
2.8 Hydraulic Control Operation................................................................................... 2-11
2.9 Loading, Turning, And Clamping Logs.................................................................. 2-15
2.10 Clamp Extension .................................................................................................... 2-18
2.11 Up/Down Operation ................................................................................................ 2-19
2.12 Blade Guide Arm Operation.................................................................................... 2-20
2.13 Clutch/Brake Operation........................................................................................... 2-21
2.14 Power Feed Operation............................................................................................. 2-22
2.15 Cutting The Log ...................................................................................................... 2-24
2.16 Edging...................................................................................................................... 2-25
2.17 Blade Height Sight Gauge.......................................................................................2-26
2.18 Blade Height Scale .................................................................................................. 2-27
2.19 Water Lube Operation.............................................................................................2-30
2.20 Preparing The Sawmill For Towing........................................................................ 2-31

Table of Contents Section-Page
Table of Contents HD92doc042701 ii
SECTION 3 MAINTENANCE 3-1
3.1 Wear Life................................................................................................................... 3-1
3.2 Blade Guides ............................................................................................................. 3-2
3.3 Hydraulic Log Loader ............................................................................................... 3-3
3.4 Blade Housing ........................................................................................................... 3-4
3.5 Carriage Track, Wiper & Scrapers............................................................................ 3-5
3.6 Track Rollers ............................................................................................................. 3-6
3.7 Vertical Mast Rails.................................................................................................... 3-7
3.8 Drum Switches .......................................................................................................... 3-8
3.9 Miscellaneous Lubrication ........................................................................................ 3-9
3.10 Blade Tensioner....................................................................................................... 3-10
3.11 Blade Wheel Belts ................................................................................................... 3-11
3.12 Brake Strap Adjustment .......................................................................................... 3-12
3.13 Hydraulic System .................................................................................................... 3-14
3.14 Drive Bearing .......................................................................................................... 3-16
3.15 Up/Down System..................................................................................................... 3-17
3.16 Power Feed.............................................................................................................. 3-20
3.17 Miscellaneous Maintenance .................................................................................... 3-22
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........................................................... 4-12
4.7 Power Feed Variable Speed Switch Test................................................................. 4-13
4.8 Power Feed Preliminary Test .................................................................................. 4-14
4.9 Power Feed Mechanical Test................................................................................... 4-15
4.10 Hydraulic Pressure Test........................................................................................... 4-16

Table of Contents Section-Page
Table of Contents HD92doc042701 iii
SECTION 5 SAWMILL ALIGNMENT 5-1
5.1 Pre-Alignment Procedures......................................................................................... 5-1
5.2 Frame Setup............................................................................................................... 5-2
5.3 Blade Installation And Alignment............................................................................. 5-3
5.4 Saw Head Slide Pad Adjustment...............................................................................5-5
5.5 Adjusting The Lower Track Rollers.......................................................................... 5-7
5.6 Adjusting Main Bed Rails To Blade .........................................................................5-9
5.7 Blade Guide Arm Vertical Adjustment................................................................... 5-11
5.8 Blade Guide Arm Horizontal Adjustment............................................................... 5-12
5.9 Aligning The Blade Guides..................................................................................... 5-14
5.10 Blade Deflection...................................................................................................... 5-15
5.11 Blade Guide Vertical Tilt Adjustment.....................................................................5-16
5.12 Blade Guide Spacing............................................................................................... 5-18
5.13 Horizontal Tilt Adjustment...................................................................................... 5-19
5.14 Horizontal Adjustment Of Side Supports................................................................5-20
5.15 Vertical Adjustment Of Side Supports.................................................................... 5-21
5.16 Clamp Stop Adjustment .......................................................................................... 5-22
5.17 Aligning The Pivot Bed Rails..................................................................................5-23
5.18 Sight Gauge Adjustment.......................................................................................... 5-25
5.19 Saw Head Tilt.......................................................................................................... 5-26
5.20 Blade Height Scale Adjustment............................................................................... 5-27

Safety & General Information
Blade Handling
Safety & General Information HD92doc042701 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 refers to hazards that can cause death or serious, irreversible personal
injury. The word WARNING suggests a safety hazard that can cause personal injury.
CAUTION refers to hazards that can cause damage to the equipment or property only.
Read all safety instructions before operating this equipment and observe all safety warn-
ings!
Safety instructions are listed in this section by the following operations:
 Blade Handling
 Sawmill Setup
 Sawmill Operation
1.1 Blade Handling
WARNING! Always wear gloves and eye protection when
handling bandsaw blades. Keep all persons away from
area when coiling or carrying a blade.
1.2 Sawmill Setup
DANGER! Chock the trailer wheels to prevent movement
before unhitching it from the towing vehicle.
DANGER! Put front outrigger down before moving cutting
head from the rest position.
WARNING! Do not set up the mill on ground with more than
a 10 degree incline. If setup on an incline is necessary, dig
out areas for outrigger legs to keep mill level. Setting up the
mill on an incline could cause it to tip over!

Safety & General Information
Sawmill Operation
1
1-2 HD92doc042701 Safety & General Information
1.3 Sawmill Operation
DANGER! Never operate or tow the sawmill without all
guards and covers in place and secured.
Be sure the blade housing and pulley covers are in place
and secure. If applicable, use the safety retainer pin and
cable to fasten blade housing covers.
DANGER! Always disengage the clutch/brake mechanism
whenever the sawmill is not cutting.
DANGER! Always keep hands away from moving bandsaw
blade.
DANGER! Keep all persons a safe distance away from
work area when operating sawmill or loading and turning
logs.
DANGER! Be sure the power feed switch is in the neutral
position before turning the key switch to the ON or ACC
position. This prevents unwanted carriage movement.
DANGER! Check to be sure the saw head is resting firmly
on the rest pin and mast rail stops and that the safety chain
is secured before towing the sawmill.
WARNING! Always secure the cutting head with a 5/16”
chain with a least 1900 lbs. working load capacity before
adjusting the up/down chain. The cutting head may fall,
causing severe injury or death.
WARNING! Always secure the cutting head with a 5/16”
chain with a least 1900 lbs. working load capacity before
removing the up/down motor belt. The cutting head may
fall, causing severe injury or death.
WARNING! Always wear eye, ear, respiration, and foot pro-
tection when operating the sawmill.
WARNING! Secure all loose clothing and jewelry before
operating the sawmill.
WARNING! Always make sure log is clamped securely
before sawing.

Safety & General Information
Sawmill Operation
Safety & General Information HD92doc042701 1-3
1
CAUTION! Always be sure that all safety warning decals
are clean and readable. Replace all damaged warning
decals. Contact your local distributor, or call your Customer
Service Representative to order more decals.
CAUTION! Be sure the pivot end rails, turning arm, clamp,
and toe boards are out of the way before loading a log onto
the bed. Also, be sure the cutting head is moved far enough
forward so the log does not hit it.
CAUTION! Failure to fully extend the log clamp before tow-
ing can result in damage to the clamping assembly during
towing.
IMPORTANT! It is always the owner's responsibility to com-
ply 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 byproducts, including
sawdust and other debris.
!

Safety & General Information
Belt Sizes
1
1-4 HD92doc042701 Safety & General Information
1.4 Belt Sizes
See Table 1-1. Belt sizes for the LT30HD/40HD are shown.
Description Belt Size Wood-Mizer Part #
24hp Gas Engine Drive Belt 2BX742P10277-2
20hp Diesel Engine Drive Belt 2BX682P12139-2
15hp Electric Motor Drive Belt 2BX702P04857-2
Alternator Belt (G24) A33 P11542
Alternator Belt (D20/E15) A30 P11628
Blade Pulley Belts B571P04185
Power Feed Drive Belt 4L280 P04031
Up/Down Drive Belt 3L290 P04349
1To insure proper blade tracking, use Goodyear, Dayco Super II, or
Browning belts only.
2Two belts originally supplied on machines prior to rev E3. Replace
with one common-backed belt as listed above.
TABLE 1-1

Safety & General Information
Blade Sizes
Safety & General Information HD92doc042701 1-5
1
1.5 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 specifications.
Gas/Diesel
Engine Size Recommended Blade For Sawing:
Softwood Hardwood Frozen or Hard-to-Cut
Wood
5 hp - 14hp .042 x 7/8 x 1 1/4” .035 x 7/8 x 1 1/4” .045 x 7/8 x 1 1/4” F 1
1TRU•SHARP™ “F” blades use a 9/29 profile (9° hook angle and 29° back angle) and are de-
signed to cut frozen and/or extremely dense, hard-to-cut wood. Standard TRU•SHARP™
blades use a 10/30 profile.
16hp or more .045 x 7/8 x 1 1/2” .042 x 7/8 x 1 1/4”
.045 x 7/8 x 1 1/2”2
2Customer may choose preferred blade.
.045 x 7/8” x 1 1/4” F1
Electric Motor .045 x 7/8 x 1 1/2” .042 x 7/8 x 1 1/4”
.045 x 7/8 x 1 1/2” 2.045 x 7/8 x 1 1/4” F1
TABLE 1-2

Safety & General Information
Cutting Capacity
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1-6 HD92doc042701 Safety & General Information
1.6 Cutting Capacity
See Table 1-3. The log size capacities of the LT30HD and LT40HD sawmills are listed
below.
See Table 1-4. The production capacity of the LT30HD and LT40HD sawmills is listed
below. Productivity is based on sawing 1" lumber. The low end of the range is based on a
single operator with no support equipment. The high end of the range is based on two
operators with support equipment.
Max.
Diameter 1
1Maximum log capacity for a basic mill is 4400 lbs. (1996 Kg).
Max.
Length 1
LT30HD 36" (91.5 cm) 2
2Maximum diameter capacity prior to revision C8 is 32"
16' 8" (5.1 m)
LT40HD 36" (91.5 cm) 221' (6.4 m)
LT30HD with Optional 12'
Bed Extension 3
3Logs over 4400 lbs. must be distributed so that neither the basic mill or ex-
tension is loaded beyond the 4400 lb. maiximum weight rating. Loading
logs heavier than 4400 lbs. (1996 Kg.) on a mill equipped with bed exten-
sion requires auxilliary log handling equipment.
36" (91.5 cm) 228' 8" (8.7 m)
LT40HD with Optional
12' Bed Extension 336" (91.5 cm) 233' (10.1 m)
TABLE 1-3
Model Production Capacity
LT30HD/40HD 24hp gas engine 2,000 - 3,400 bdft./day
LT30HD/40HD 15hp electric motor 2,000 - 3,400 bdft./day
LT30HD/40HD 20hp diesel engine 2,000 - 3,200 bdft./day

Safety & General Information
Engine/Motor Specifications
Safety & General Information HD92doc042701 1-7
1
1.7 Engine/Motor Specifications
See Table 1-5. The power options available for the LT30HD and LT40HD sawmills are
listed below.
Engine/Motor
Type Manufacturer Model Number
24HP Gasoline Onan P224
20HP Diesel Acme ADX740
15HP Electric Baldor Custom
TABLE 1-5

Safety & General Information
Overall Dimensions
1
1-8 HD92doc042701 Safety & General Information
1.8 Overall Dimensions
See Table 1-6. The overall dimensions of the LT30HD sawmill are listed below.
See Table 1-7. The overall dimensions of the LT40HD sawmill are listed below.
LT30HD LT30HD with Surge
Brake Trailer Pkg.
Length 19' 11" (5.3 m) 21' 9" (6.6 m)
Width 8' (2.4 m) 8' 2" (2.5 m)
Height 7' 6" (2.3 m) 7' 6" (2.3 m)
Weight 2433 lbs. (1105 Kg) 2780 lbs. (1262 Kg)
TABLE 1-6
LT40HD LT40HD with Surge Brake
Trailer Pkg.
Length 24' 4" (7.4 m) 26' 2" (8.0 m)
Width 8' (2.4 m) 8' 2" (2.5 m)
Height 7' 6" (2.3 m) 7' 6" (2.3 m)
Weight 2513 lbs. (1141 Kg) 2860 lbs. (1298 Kg)

Safety & General Information
Components
Safety & General Information HD92doc042701 1-9
1
1.9 Components
See Figure 1-1. The major components of the Wood-Mizer LT30HD/LT40HD are shown
below.
FIG. 1-1
Trailer
Hitch
Operator
Seat Option
Control
Box
Water Lube
Engine/Drive Assembly
Outer Blade Guide Arm
Blade
Tensioner
Hydraulic
Log Clamp
Hydraulic
Log Loade
r
Hydraulic
Log Turner Side Support
Hydraulic
Toe Board
Pivot Bed
Rail
Outrigger Leg
Manual Winch
Hydraulic
Control Box
HD0001

Safety & General Information
Hydraulic Schematic
1
1-10 HD92doc042701 Safety & General Information
1.10 Hydraulic Schematic
FIG. 1-2 HYDRAULIC SCHEMATIC (REVISIONS E7+).