Wood-mizer LT70L DH, LT70L DH WIDE User Manual

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Wood-Mizer

Safety, Setup, Operation

& Maintenance Manual

LT70L DH rev. B7.00 LT70L DH WIDE rev. B7.00

Safety is our #1 concern! Read and understand

all safety information and instructions before operating, setting up or maintaining this machine.

Form #1041

This is the original language

for the manual.

Table of Contents Section-Page

SECTION 1 SAFETY 1-1

1.1 Safety Symbols.......................................................................................1-1

1.2 Safety Instructions..................................................................................1-2

1.3 Belt Sizes..............................................................................................1-16

1.4 Blade Sizes ...........................................................................................1-16

SECTION 2 SERVICING THE SAWMILL 2-1

2.1 Customer and Sawmill Identification.....................................................2-1

SECTION 3 SAWMILL SETUP 3-1

3.1 Sawmill Setup.........................................................................................3-1

3.2 Stationary Sawmill Setup .......................................................................3-3

Sawmills with Cable Guide

3.3 Portable Sawmill Setup ..........................................................................3-8

3.4 Middle Track Cover .............................................................................3-11

3.5 Replacing The Blade ............................................................................3-12

3.6 Tensioning The Blade...........................................................................3-13

3.7 Tracking The Blade ..............................................................................3-15

3.8 Starting The Engine (or Motor)............................................................3-17

SECTION 4 SAWMILL OPERATION 4-1

4.1 Hydraulic Control Operation..................................................................4-1

4.2 Loading, Turning And Clamping Logs ..................................................4-5

4.3 Up/Down Operation ...............................................................................4-7

4.4 Blade Guide Arm Operation...................................................................4-8

4.5 Power Feed Operation ............................................................................4-9

4.6 Cutting The Log ...................................................................................4-11

4.7 Edging...................................................................................................4-12

4.8 Optional Cutting Procedure..................................................................4-13

4.9 Blade Height Scale ...............................................................................4-13

4.10 Water Lube Operation ..........................................................................4-15

4.11 LT70 WIDE Lube System Operation...................................................4-16

4.12 Preparing The Sawmill For Towing.....................................................4-17

SECTION 5 MAINTENANCE 5-1

5.1 Wear Life................................................................................................5-1

5.2 Blade Guides ..........................................................................................5-2

Steel Guide Blocks Throat Screw

5.3 Sawdust Removal ...................................................................................5-4

5.4 Carriage Track, Wiper & Scrapers .........................................................5-4

5.5 Vertical Mast Rails.................................................................................5-6

4 SW-07doc102619 Table of Contents

Table of Contents Section-Page

5.6 Drum Switches .......................................................................................5-6

5.7 Miscellaneous .........................................................................................5-7

5.8 Brake Adjustment...................................................................................5-8

5.9 Drive Belt Adjustment............................................................................5-9

5.10 Up/Down System..................................................................................5-10

5.11 Charging The Battery (DC Only) .........................................................5-12

5.12 Hydraulic System .................................................................................5-13

5.13 Power Feed ...........................................................................................5-15

SECTION 6 TROUBLESHOOTING GUIDE 6-1

6.1 Sawing Problems....................................................................................6-1

6.2 Electrical Problems.................................................................................6-3

6.3 Power Feed Problems.............................................................................6-5

6.4 Power Feed Circuit Troubleshooting......................................................6-7

6.5 Hydraulic Problems ..............................................................................6-10

6.6 Engine/Motor and Drive Pulleys Alignment........................................6-15

6.7 Power Feed Variable Feed Rate Switch Test .......................................6-15

6.8 Power Feed Preliminary Test ...............................................................6-15

6.9 Power Feed Mechanical Test................................................................6-15

6.10 Fuse Terminal Extension Stud..............................................................6-17

6.11 Circuit Breaker Operation ....................................................................6-19

SECTION 7 SAWMILL ALIGNMENT 7-1

7.1 Routine Alignment Procedure ................................................................7-1

Blade Installation Saw Head Tilt Blade Guide Arm Alignment Blade Guides Blade Guide Vertical Tilt Alignment Blade Guide Horizontal Tilt Adjustment Blade Guide Flange Spacing

7.2 Horizontal Adjustment of Side Supports..............................................7-13

Table of Contents SW-07doc1026195

Table of Contents Section-Page

7.3 Vertical Adjustment of Side Supports..................................................7-14

Blade Height Scale Adjustment

7.4 Complete Alignment Procedure ...........................................................7-16

Frame Setup Blade Installation Blade Wheel Alignment Bed Rail Adjustment Blade Guide Installation Blade Guide Arm Alignment Blade Guide Deflection Blade Guide Vertical Tilt Alignment Blade Guide Horizontal Tilt Adjustment Blade Guide Flange Spacing Blade Guide Level Blade Disk Adjustment Horizontal Alignment of Side Supports Vertical Side Support Alignment Clamp Stop/Stop Bolt Adjustment Saw Head Tilt Blade Height Scale Adjustment

SECTION 8 SPECIFICATIONS 8-1

8.1 Log Capacity ..........................................................................................8-1

8.2 Overall Dimensions ................................................................................8-1

8.3 Engine/Motor Specifications ..................................................................8-5

8.4 Chains .....................................................................................................8-6

8.5 Lube System Specifications ...................................................................8-6

8.6 Hydraulic System ...................................................................................8-6

8.7 Belt Sizes................................................................................................8-7

8.8 Hydraulic Blade Tensioner Schematic ...................................................8-7

8.9 Hydraulic Blade Tensioner ComponentsSawdust Extractor Specifications8-8

SECTION 9 HYDRAULIC INFORMATION 9-1

9.1 LT 40/70L DH Hydraulic Schematic .....................................................9-1

9.2 LT 40/70L DH Hydraulic Hoses ...........................................................9-2

6 SW-07doc102619 Table of Contents

SECTION 1 SAFETY

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.

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.

Safety

Safety Symbols

IMPORTANT! indicates vital information.

NOTE: gives helpful information.

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.

Safety 60HDdoc102619 1-1

Safety

Safety Instructions

1.2 Safety Instructions

NOTE: ONLY safety instructions regarding personal injury are listed in this section. Caution

statements regarding only equipment damage appear where applicable throughout the manual.

IMPORTANT! The sawmill is intended for sawing wood only. See

Section 8.1 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.

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 applicable safety instructions including dangers, warnings, and cautions.

Only persons who have read and understood the entire operator's manual should operate the sawmill. The sawmill is not intended for use by or around children.

IMPORTANT! It is always the owner's responsibility to comply with all

applicable federal, state and local laws, rules and regulations regarding the ownership, 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.

1-2 60HDdoc102619 Safety

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, safety clothing, and foot

protection when operating or servicing the sawmill.

Safety

Safety Instructions

KEEP SAWMILL AND AREA AROUND SAWMILL CLEAN

DANGER! Maintain a clean and clear path for all necessary movement around

the mill and lumber stacking areas. Failure to do so will result in serious injury.

HANDLE FUEL/LUBRICANTS SAFELY

DANGER! Due to the flammable nature of fuel and oil, never smoke, weld,

grind or allow sparks near your engine or storage tanks, especially during times of fueling.

DANGER! Never allow fuel to spill on a hot engine during fueling operations or

otherwise. The hot temperature of your engine could induce a fire or explosion.

WARNING! Store gasoline away from sawdust and other flammable materials.

Failure to do so may result in serious injury.

Safety 60HDdoc102619 1-3

Safety

Safety Instructions

WARNING! Use ONLY water with the water lube accessory. Never use

flammable fuels or liquids. If these types of liquids are necessary to clean the blade, remove it and clean with a rag. Failure to do so may result in serious injury or death.

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! The sawmill’s work-stand should be equipped with a 4 kg or bigger

dry powder extinguisher.

DISPOSE OF SAWING BY-PRODUCTS PROPERLY

IMPORTANT! Always properly dispose of all sawing by-products, including

sawdust and other debris, coolant, oil, fuel, oil filters and fuel filters.

USE CAUTION WHEN WORKING WITH BATTERIES (GAS & DIESEL SAWMILLS ONLY)

DANGER! Batteries expel explosive gases. Keep sparks, flames, burning

cigarettes, or other ignition sources away at all times. Always wear safety goggles and a face shield when working near batteries. Failure to do so will

cause serious injury.

WARNING! Battery posts, terminals and related accessories contain lead and

lead compounds, chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling.

WARNING! Charge the battery in a well ventilated area. Do not attempt to

charge a frozen battery.

1-4 60HDdoc102619 Safety

Safety Instructions

Use extreme care to avoid spilling or splashing electrolyte (which is dilute sulfuric acid) as it can destroy clothing and burn the skin. If electrolyte is spilled or splashed on clothing or the body, it should be neutralized immediately and then rinsed with clean water. A solution of baking soda, or household ammonia, and water may be used as a neutralizer.

Electrolyte splashed into the eyes is extremely dangerous. If this should happen, force the eye open and flood it with cool, clean water for approximately fifteen minutes. A doctor should be called immediately when the accident occurs and “on-the-spot” medical attention given if possible. If a doctor cannot come to the scene of the accident immediately, follow his instructions concerning actions to take. Do not add eye drops or other medication unless advised to do so by the doctor. Do not place a battery or acid within the reach of children. If acid (electrolyte) is taken internally drink large quantities of water or milk. Follow with milk of magnesia, beaten egg or vegetable oil. Call a physician immediately.

If electrolyte is spilled or splashed on any surface of the machine, it should be neutralized and rinsed with clean water.

Safety

CAUTION! Do not overcharge the battery. Overcharging may reduce the

overall service life of the battery.

CAUTION! Be sure the battery is fully charged before transporting the

sawmill. If the battery is not fully charged, excessive vibration could reduce the overall service life of the battery.

CAUTIONS FOR SAWMILL SETUP

WARNING! Do not set up the mill on ground with more than a 10 degree

incline. If setup on an incline is necessary, put blocks under one side of the mill or dig out areas for the outrigger legs to keep mill level. Setting up the mill on an incline could cause it to tip over, resulting in serious personal injury.

WARNING! Chock the trailer wheels to prevent movement before unhitching it

from the towing vehicle. Failure to do so may result in serious injury or death.

WARNING! Put front outrigger down before moving saw head from the rest

position. Failure to do so may result in serious injury.

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! 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.

Safety 60HDdoc102619 1-5

Safety

Safety Instructions

CHECK SAWMILL BEFORE 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 closed (i.e. the safety switches located on them are engaged).

KEEP PERSONS AWAY

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! Always be sure that 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.

KEEP HANDS AWAY

DANGER! Always shut off the sawmill engine before changing the blade.

Failure to do so will result in serious injury.

DANGER! Engine components can become very hot during operation.

Avoid contact with any part of a hot engine. The exhaust components of your engine are especially hot during and following operation. Contact with hot engine components can cause serious burns. Therefore, never touch or perform service functions on a hot engine. Allow the engine to cool sufficiently before beginning any service function.

1-6 60HDdoc102619 Safety

Safety Instructions

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! Do not for any reason adjust the engine drive belts or belt support

bracket with the engine running. Doing so may result in serious injury.

Safety

CAUTIONS FOR GAS OR DIESEL ENGINE OPERATION

DANGER! Operate your engine/machine only in well ventilated areas.

The exhaust gases of your engine can cause nausea, delirium and potentially death unless adequate ventilation is present.

DANGER! Never operate an engine with a fuel or oil leak. The leaking

fuel or oil could potentially come in contact with hot surfaces and ignite into flames.

WARNING! Do not operate engine without proper and operational

spark arrester/muffler. Sparks emitted from the engine exhaust could ignite surrounding materials, causing serious injury or death.

USE PROPER PROCEDURE WHEN CONDUCTING ELECTRICAL SAFETY CHECKS AND MAINTENANCE

DANGER! Make sure all electrical installation, service and/or maintenance

work is performed by a qualified electrician and is in accordance with applicable electrical codes.

DANGER! Hazardous voltage inside the electric boxes and at the motor can

cause shock, burns, or death. Disconnect and lock out power supply before servicing! Keep all electrical component covers closed and securely fastened during mill operation.

Safety 60HDdoc102619 1-7

Safety

Safety Instructions

WARNING! Consider all electrical circuits energized and dangerous.

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! Before performing service near moving parts such as blades,

pulleys, motors, belts and chains, first turn the key switch to the OFF (#0) position and remove the key. If the key is turned on and moving parts activated, serious injury may result.

WARNING! Remove the blade before performing any service to the engine or

sawmill. Failure to do so may result in serious injury.

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.

1-8 60HDdoc102619 Safety

USE CAUTION WHEN WORKING WITH HEAVY LOGS

WARNING! Always make sure log is clamped securely before sawing. Failure

to do so may result in serious injury or death.

AUTOMATIC BOARD RETURN SAFETY

DANGER! Keep all persons out of the path of returning boards. Failure to do

so will result in serious injury.

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.

Safety

Safety Instructions

POWER FEED SYSTEM SAFETY

DANGER! If leaving the blade engaged for maximum production rates, make

sure the off-bearer stays out of the path of the blade. Failure to do so will result in serious injury or death.

WARNING! Be sure the power feed switch is in the neutral position before

turning the key switch to the #1, #2 or #3 position. This prevents accidental carriage movement which may cause serious injury or death.

GENERAL TRAILER SAFETY

DANGER! Be sure that the hitch and the safety cable are secured before

towing the sawmill. The safety cable automatically operates the trailer handbrake lever in case the hitch should become disengaged. Failure to do so may result in serious personal injury and/or severe machine damage.

DANGER! Make sure all light connections have been made and are working

properly before towing the sawmill. Failure to do so may result in serious personal injury and/or severe machine damage.

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.

Safety 60HDdoc102619 1-9

Safety

Safety Instructions

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

EMERGENCY STOP button to stop the blade motor and wait 10 seconds before you open the blade housing cover.

CAUTION! The sawmill’s work-stand should be equipped with a 4 kg

or bigger dry powder extinguisher.

1-10 60HDdoc102619 Safety

Safety

099220

099221

Safety Instructions

See Table 1-1. Pictogram decals used to warn and inform the user about danger in the LT70.

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.

099221 CAUTION! Keep all persons a safe

distance away from work area when operating the machine.

Safety 60HDdoc102619 1-11

Safety

098176

085977B

Safety Instructions

TABLE 1-1

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.

096319 CAUTION! Disconnect power supply

before opening the box.

085977B Do not lift the machine grasping by the

element!

1-12 60HDdoc102619 Safety

Safety Instructions

086099

099542

505189

TABLE 1-1

086099 CAUTION! Keep away - hot parts!

099222 CAUTION! Sawdust outlet. Protect eyes!

Safety

099542 CAUTION! Trailer.

096321 Blade movement direction

505189 Tensioner ball valve lever

Safety 60HDdoc102619 1-13

Safety

512240

50h

512158

OIL

50h

Safety Instructions

TABLE 1-1

512 2 40 Cle a n the ch ain fro m sawdu st eve r y

50 hours of operation or once a week.

512158 Lubricate the chain every 50 hours of

operation or once a week.

S12004G CAUTION! Always wear safety goggles

when operating the sawmill!

S12005G CAUTION! Always wear protective ear

muffs when operating the sawmill!

1-14 60HDdoc102619 Safety

Safety Instructions

P11789-70

099401

S20097

TABLE 1-1

501465 CAUTION! Always wear safety boots when

operating the sawmill.

501467 Lubrication Point

P11789-70 Aligning the blade on the wheels

Safety

P85070 CE safety certification

099401 Russian safety certification

S20097 Motor rotation direction

Safety 60HDdoc102619 1-15

Safety

Belt Sizes

1.3 Belt Sizes

See Table 1-2. Belt sizes are shown below.

Motor Drive Belt ( E25 ) 3B/HB

Engine Drive Belt ( D42 )

Alternator Belt ( DC mills only )

Up/Down Drive Belt (DC mills)

Blade Pulley Belts

Description Belt Size Wood-Mizer

Part #

089464

2462La

3B/HB 2462La 089464

6PK775 089465

AVX13x600La 092813

B72.5

To insure proper blade tracking, use Goodyear, Dayco Super II, or Browning belts only.

017922

TABLE 1-2

1.4 Blade Sizes

The engine/motor size of your sawmill and the type of wood you saw should determine which blade you choose for optimum performance.

See The Blade Handbook for blade hook angle, tooth height, and tooth set specifications.

The LT70 sawmill can be equipped with a 35 mm, 38 mm or 50 mm wide blade. The blade length for the standard LT70 sawmill is 4.67 m, and for the LT70 WIDE sawmill is 5 m.

1-16 60HDdoc102619 Safety

SECTION 2 SERVICING THE SAWMILL

2.1 Customer and Sawmill Identification

Each Wood-Mizer sawmill has a model number and a 17-digit Vehicle Identification Number (VIN). In addition, when you pick up your mill, you will receive a customer number. These three numbers will help expedite our service to you. Please locate them now and write them below so you have quick, easy access to them. See the following figures for model number and V.I.N. descriptions and locations.

(To be filled in by purchaser)

Mill Model ___________________ Mill VIN ___________________ Customer No. ___________________

LT70 E25

Basic Sawmill I.D. Engine/Motor

Servicing The Sawmill

Customer and Sawmill Identification

Configuration

See below for a description of the V.I.N.

Check Digit

Number of axles on the trailer

456=Wood-Mizer Indiana

Company Identification Number

Weight Class; A=Under 1300 kg B=1300 -1800kg

7=LT70 Series

Length of the Trailer;

20=20 Ft., 24=24’, 35=35’

C=1800-2200 kg D=2200kg-3000kg

Product No.: 1=LT15, 2=LT20, 4=LT40 Series,

Year of Manufacture;

Add all the numbers and divide by 11

State of Manufacture

G=2009, H=2010, J=2011, K=2012, L=2013, M=2014

MODEL NUMBER DESCRIPTION

Revision Level

N=Indiana, P=Poland

Month of Manufacture

A=January, B=February, C=March, etc...

Sequence Number

Ranging from 000-999

End of 17-Digit VIN

Revision Level (Repeated)

Two-Digit Minor Revision Level

456 A 7 24 1 X J N A F9 017 F9 .01

V.I.N. DESCRIPTION.

Servicing The Sawmill 60HDdoc102619 2-1

Servicing The Sawmill

Customer and Sawmill Identification

The model number and V.I.N. can be found in the following locations.

MODEL NUMBER AND V.I.N. LOCATIONS

2-2 60HDdoc102619 Servicing The Sawmill

SECTION 3 SAWMILL SETUP

3.1 Sawmill Setup

IMPORTANT! Before starting to use the sawmill you have to meet the

following conditions:

Set up the sawmill on firm, level ground and level the sawmill. Secure the sawmill to the

ground to prevent moving during operation. A concrete foundation or pads (rated to support

31 T/m

Under roof, the sawmill should always be operated with the sawdust collection system.

The sawmill can be operated under roof only.

at each sawmill foot position) and 16mm anchored bolts are recommended.

Sawmill Setup

The sawmill can be operated in temperature range from -15

Illuminance at operator's position must be 300lx.

The sawmill operator’s position is shown below.

 Tie the belts in the places shown on the picture below. The sawmill can be lifted using a forklift,

a winch or a crane. The belts and the lifting equipment must be rated for at least 3000kg (6600 lb).

C to 40o C only.

WARNING! When lifting the sawmill, use extreme caution and keep all

persons at a safe distance. Failure to do so may result in serious injury

Sawmill Setup 60HDdoc102619 3-1

Sawmill Setup

sm0376

Sawmill Setup

or death.

3-2 60HDdoc102619 Sawmill Setup

3.2 Stationary Sawmill Setup

Stationary sawmill*

*all diameters in millimeters

0002

Stationary Sawmill*

*All dimensions in millimeters

Prepare a firm, level area where the sawmill can be anchored. There should be enough room around the sawmill for operators, sawdust removal, log loading and board removal. A cement pad with 5/8” (16 mm) diameter anchor bolts is recommended. The cement pad should be rated to support

6350 lbs./sq.ft. (31 T/m ) at each sawmill foot position.

NOTE: Make sure the unit is level before securing. It is possible to twist the mill frame by jacking one foot higher than the others.

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.

Sawmill Setup

Stationary Sawmill Setup

1. Unhook the carriage safety chain, located at the bottom of the vertical mast.

2. Start the engine to enable the battery-operated accessories (See Section 3.6

switch on the control panel to raise the cutting head from the carriage rest pin. Remove the locking pin and swing the rest pin down below bed level.

CAUTION! Always make sure the engine is running before operating

the sawmill controls. Operating the controls without the engine running will result in power drainage from the battery.

3. Use the carriage forward/reverse switch (left side of control box) to move the cutting head toward the front end of the mill.

4. Raise the two side supports that will prevent a log from falling off the side of the mill when loaded.

). Use the up/down

Sawmill Setup 60HDdoc102619 3-3

Sawmill Setup

Side Support

Bed Rail Stop Block

Sm0130b

Side Support

Bed Rail Stop Block

Stationary Sawmill Setup

See Figure 3-1.

FIG. 3-1

3-4 60HDdoc102619 Sawmill Setup

Sawmill Setup

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Sawmills with Cable Guide

3.2.2 Sawmills with Cable Guide

See Figure 3-1. The figure below shows setup of the sawmill, the control box and the guiding rail columns.

Secure the columns to the ground using 16mm anchored bolts.

FIG. 3-1 LT40MRC

Sawmill Setup 60HDdoc102619 3-5

Sawmill Setup

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M8x30 Bolt

Sawmills with Cable Guide

See Figure 3-2. The electrical wires should be installed on the guiding rail as shown below.

See Figure 3-3. Install the rail bracket arm as shown below.

FIG. 3-2

FIG. 3-3

3-6 60HDdoc102619 Sawmill Setup

See Figure 3-4. Install the guiding rail.

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Sawmill Setup

Sawmills with Cable Guide

See Figure 3-5.

FIG. 3-4

Sawmill Setup 60HDdoc102619 3-7

Sawmill Setup

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Portable Sawmill Setup

3.3 Portable Sawmill Setup

WARNING! Do not set up the mill on ground with more than a 10

degree incline. If setup on an incline is necessary, put blocks under one side of the mill or dig out areas for outrigger legs to keep mill level. Setting up the mill on an incline could cause it to tip over, resulting in serious personal injury.

WARNING! Chock the trailer wheels to prevent movement before

unhitching it from the towing vehicle. Failure to do so may result in serious injury or death.

3-8 60HDdoc102619 Sawmill Setup

FIG. 3-5

Sawmill Setup

Locking Pin

Outrigger Leg

Travel Lock Pin

80_008

Adjustment Bolt

Outrigger Leg

Travel Lock Pin

Locking Pin

Portable Sawmill Setup

WARNING! Always make sure the trailer is supporting the sawmill

frame when operating a sawmill with adjustable outriggers. Failure to do so may result in serious injury or death. The adjustable outriggers are intended to support the saw frame with assistance from the trailer.

1. Unhitch the mill from the vehicle.

2. Lower and set the front outriggers. To lower the leg, pull the locking pin out of the outrigger hole.

When the outrigger contacts the ground, release the pin. Place a 19 socket wrench on the outrigger adjustment bolt and turn the bolt until the locking pin enters the nearest outrigger hole.

WARNING! Put front outrigger down before moving cutting head from

the rest position. Failure to do so may result in serious injury.

See Figure 3-3.

FIG. 3-3. OUTRIGGER ADJUSTMENT

Sawmill Setup 60HDdoc102619 3-9

Sawmill Setup

Side Support

Bed Rail Stop Block

Sm0130b

Side Support

Bed Rail Stop Bloc k

Portable Sawmill Setup

CAUTION! If setup sawmill on a boggy terrain (such as deep mud or

sand) place the board or metal plate under each outrigger leg to prevent it from sinking.

1. Unhook the carriage safety chain, located at the bottom of the vertical mast.

2. Start the engine to enable the battery-operated accessories (See Section 3.8

switch on the control panel to raise the cutting head from the carriage rest pin. Remove the locking pin and swing the rest pin down below bed level.

CAUTION! Always make sure the engine is running before operating

the sawmill controls. Operating the controls without the engine running will result in power drainage from the battery.

3. Dismount the saw head protection belt and raise the saw head.

4. Remove the fenders by lifting them out of the slots.

CAUTION! To prevent fender damage, remove fenders before

operating sawmill or loading logs.

5. Use the carriage forward/reverse switch (left side of control box) to move the cutting head toward the front end of the mill.

6. Lower and set the remaining rear outriggers. Level the sawmill by turning each outrigger adjustment bolt clockwise to raise a given sawmill end, or counterclockwise to lower it. Adjust all outriggers evenly to avoid twisting the mill frame by jacking one outrigger higher than the others.

). Use the up/down

7. Raise the side supports to prevent the log from falling off the side of the mill when loaded.

See Figure 3-4.

FIG. 3-4

3-10 60HDdoc102619 Sawmill Setup

Sawmill Setup

600303

Install the track cover and

secure with two screws

Middle Track Cover

3.4 Middle Track Cover

Before operating the sawmill do as follows:

1. Clean the upper and lower rails to remove any sawdust and rust preventives.

2. Unbolt and remove the middle track cover from its storage position.

3. Soak the felt wiper with Dexron III transmission fluid, 10W30 motor oil or 3-in-1 turbine oil.

4. Install the middle track cover so it fits against the rail and secure with two thumb screws.

See Figure 3-5.

FIG. 3-5

CAUTION! Install the track cover so that it lightly touches the track rail.

If the wiper presses too firmly against the rail, it can cause the power feed to bind.

Sawmill Setup 60HDdoc102619 3-11

Sawmill Setup

Replacing The Blade

3.5 Replacing The Blade

DANGER! Always 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.

Adjust the blade guide arm all the way open.

Open the two blade housing covers that cover the blade wheels. Release the blade tension

(See Section 3.6

blade out of the blade housing.

When installing a blade, make sure the teeth are pointing the correct direction. The teeth should be pointing toward the operator side of the mill when you are looking at the blade below the blade guides. Install the blade so it is lying around the wheels.

) until the wheel is pulled in and the blade is lying loose in the blade housing. Lift the

CAUTION! Be careful when placing the blade between the blade guide

inserts. If the blade hits one of the inserts hard enough, it could damage the insert.

Position 1 1/4” wide blades on the wheels so the gullet is 1/8" (3.0 mm) out from the edge of the wheel. Position 1 1/2” wide blades on the wheels so the gullet is 3/16” (4.5 mm) out from the edge of the wheel.

Close the blade housing covers.

Next, turn the tension handle until the blade is tensioned correctly.

3-12 60HDdoc102619 Sawmill Setup

3.6 Tensioning The Blade

Air Valve

Location

Blade Tension

Air Gauge

Blade

Tension

Handle

Ball Valve

Add/remove air

as necessary

Handle Grip

Before tensioning the blade, check the air pressure gauge to see that the air tension system is properly charged. The gauge should read 50 PSI, i.e. .34 MPa (yellow colour) with the blade tension completely released. To add air pressure attach an air pump to the air valve. Add air until the gauge reads 50 PSI. To release air, push in the valve stem.

See Figure 3-6.

Sawmill Setup

Tensioning The Blade

FIG. 3-6

To tension the blade use the tension handle, when the ball valve handle is in “1” working position. To release, shift the ball valve handle in “0” loosing position. The blade tension handle should be placed in the handle grip when not used.

Sawmill Setup 60HDdoc102619 3-13

Sawmill Setup

Tensioning The Blade

See Table 3-6. The recommended tension for different blades is shown below.

Blade Type Blade Dimensions Tension range

Thickness (mm) Width (mm) PSI MPa

2735 1.07 35 60-62 0.41-0.43

3735 1.14 35 65 0.45

276 1.07 38 60-62 0.41-0.43

376 1.14 38 62-65 0.43-0.45

576 1.27 38 65-70 0.45-0.48

476 1.4 38 65-70 0.45-0.48

1750 1.00 50 75-80 0.52-0.55

2750 1.07 50 75-80 0.52-0.55

TABLE 3-1

The tension gauge should be checked occasionally when adjusting the cant control or while cutting. Ambient temperature changes will cause tension to change. Adjust the tension handle as necessary to maintain the recommended tension level.

CAUTION! Release the blade tension when the mill is not in use

(for example at the end of a shift). Tension the blade again before starting the motor.

3-14 60HDdoc102619 Sawmill Setup

Sawmill Setup

SM0044D

1 1/2" Blade

± 1 mm (0.04”)

1 1/4" Blade

3.0 mm (0.12”)

± 1 mm (0.04”)

4.5 mm (0.18”)

1 1/4” Blade

1 1/2” Blade

Tracking The Blade

3.7 Tracking The Blade

1. Turn the key switch to #3 position.

2. Engage the blade switch.

3. Manually spin one of the blade wheels until the blade positions itself on the blade wheels.

4. Check that if the blade is properly positioned on the blade wheels.

See Figure 3-7. Position 1 1/4” wide blades so the gullet is 1/8" (3.0 mm) out from the edge of the

blade wheel (±0,04” [1 mm]). Position 1 1/2”, 2” blades so the gullet is 0,16” (4 mm) out from the edge of the blade wheel (±0,04” [1 mm]).

5. Use the cant adjustment bolt to adjust where the blade travels on the blade wheels.

FIG. 3-7

Sawmill Setup 60HDdoc102619 3-15

Sawmill Setup

Turn bolt clockwise

to move blade out on

wheel; counterclock-

wise to move blade in

on wheel.

Cant

Adjustment Bolt

(See Detail)

DETAIL

Tracking The Blade

See Figure 3-7.

FIG. 3- 7

To move the blade out on the blade wheel, turn the cant adjustment bolt clockwise. To move the blade in on the blade wheel, turn the bolt counterclockwise.

NOTE: Slight adjustments of the side bolts on the outer blade wheel

are usually all that is necessary to track the blade properly.

6. Adjust the blade tension if necessary to compensate for any changes that may have occured while

7. Spin the blade wheel by hand.

8. Check again the position of the blade on the blade wheels.

9. Repeat Steps 4 - 7 as necessary until the blade tracks on the blade wheels properly.

10. Turn the key switch to #0 position

11. Be sure to close the blade housing and pulley covers when the adjustment is complete.

adjusting the cant control.

See Section 7.4 for complete blade wheel alignment instructions.

3-16 60HDdoc102619 Sawmill Setup

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 (i.e. the safety switches located on them are engaged).

IMPORTANT! After aligning the blade on the wheels, always

double-check the blade guide spacing and location. (See Section 7

more information.)

3.8 Starting The Engine (or Motor)

See the appropriate manual supplied with your specific engine/motor configuration for starting and operating instructions.

DANGER! Make sure all guards and covers are in place and secured

before operating or towing the sawmill. Failure to do so may result in serious injury. Be sure the blade housing and pulley covers are closed (i.e. the safety switches located on them are engaged).

Sawmill Setup

Starting The Engine (or Motor)

for

DANGER! Always be sure that 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.

WARNING! Always wear eye, ear, respiration, safety clothing, 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 #1or #2 position. This prevents accidental carriage movement which may cause serious injury or death.

DANGER! Check the sawmill wiring every year. Make sure all

electrical installation, service and/or maintenance work is performed by a qualified electrician.

WARNING! Hazardous voltage inside the electric box is dangerous.

Turn the main switch to the OFF (“0”) position and lock out power supply before opening the box door!

WARNING! The door of the electric box can be opened only when the

main switch is in the “0” position. The door is closed when the switch is in the “1” position. Serious damage to the box may result while opening the door when the main switch is in the “1” position.

Sawmill Setup 60HDdoc102619 3-17

Sawmill Operation

Main Clamp In/Out

Main Clamp Up/Down

Log Turner

Front Toe Board

Rear Toe Board

Log Loader

Hydraulic Control Operation

SECTION 4 SAWMILL OPERATION

4.1 Hydraulic Control Operation

The hydraulic control levers become operational when the contacts at the bottom of the saw head touch the power strip on the frame tube. The hydraulic control levers will only work when the saw head is close enough to the front end of the sawmill to touch the power strip.

See Figure 4-1. The sawmills with the A/DH3 hydraulic system are equipped with six hydraulic control levers for loading, clamping, turning and levelling logs. The A/DH5 and A/DH7 hydraulic systems are controlled with four additional control levers that allows positioning the Pull Down clamps. On the A/DH5 hydraulic system each clamp cylinder is controlled with a separate lever. On the A/DH7 hydraulic system in/out movement of all clamps is controlled with one lever, and up/down movement of each clamp is controlled with a separate lever.

FIG. 4-1

4-1 60HDdoc102619 Sawmill Operation

See Figure 4-2. A/DH5 Hydraulic System

A/DH3

Front

Clamp

Up/Down

HD0185

Front

Clamp

In/Out

Rear

Clamp

Up/Down

Rear

Clamp

In/Out

Front

Clamp

Up/Down

Rear Clamp

Up/Down

Front Clamp

In/Out

Rear Clamp

In/Out

A/DH3

Clamp

Up/Down

Clamp

Up/Down

Clamp

I/II/III

In/Out

Clamp

III

Up/Down

HD0186

094970

Clamp I

Up/Down

Clamp II

Up/Down

Clamp III Up/Down

Clamp

I/II/III

In/Out

Sawmill Operation

Hydraulic Control Operation

See Figure 4-3. A/DH7 Hydraulic System

FIG. 4-2

FIG. 4-3

Sawmill Operation 60HDdoc102619 4-2

Sawmill Operation

Sm0135B

Front Toe Board

Middle Toe Board

Rear Toe Board

Turner

Loader

Clamp In/Out Front

Clamp Up/Down Front

Clamp In/Out Middle

Clamp Up/Down Middle

Clamp In/Out Rear

Clamp Up/Down Rear

Front Toe Board

Middle Toe Board

Rear Toe Board

Turner

Loader

Clamp Up/Down Rear

Clamp Up/Down Middle

Clamp Up/Down Front

Clamp

In/Out

Front

Clamp In/Out Middle

Clamp In/Out Rear

Hydraulic Control Operation

See Figure 4-4. The portable hydraulic sawmills have seven control levers to load, clamp, turn and level logs.

Use the hydraulic control levers to get the mill ready to load a log.

4-3 60HDdoc102619 Sawmill Operation

DANGER! Keep all persons out of the path of moving equipment and

logs when operating the sawmill or loading and turning logs. Failure to do so will result in serious injury.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.

IMPORTANT! Check the state of battery charge measuring the voltage

every 16 hours of operation or once a week. The voltage should not be lower than 12.5V when the engine is not running and not lower than

13.8V when the engine is running (during both measurements the hydraulic system and all accessories must not work). If the voltage values are lower than the values given above, recharge the battery and check the battery charging system.

FIG. 4-4

Sawmill Operation

Hydraulic Control Operation

1. Move the clamp out and down so it will not get in the way of logs being loaded onto the bed.

Lower the clamp in/out lever to move the clamp out toward the loading side of the sawmill.

Lower the clamp up/down lever to lower the clamp below the bed level.

2. Push the log loader lever up to completely lower the log loader feet.

3. The chain securing the log loader arm to the turner arm will be tight. Push the turner lever up to raise

the turner arm until there is slack in the chain.

4. Detach the chain from the bed rail.

5. Use the turner lever to completely lower the turner arm. Notice that after the turner arm is all the way

down, the side support braces will begin to lower. Release the turner lever after the turner arm is lowered, but before the side supports begin to lower. This stops the log being loaded from damaging the turner and/or falling off the side of the sawmill.

6. When raising the turner lever, the side supports rise first. After reaching a fully vertical position, the turner arm will engage and start to rise.

7. Manually lower the log loader so it rests on the ground.

CAUTION! Be careful when manually lowering the log loader. Do not

drop the loader onto the ground.

8. Lower the loader lever to lower the loading arm as far as it will go. Logs must be rolled onto the loading arms one at a time.

9. The front, middle and rear toe boards should be below the bed level. Once a tapered log has been loaded, the front or rear end of the log may be lifted to parallel the heart of the log to the path of the blade.

The front toe board is raised by lifting the front toe board lever up. The middle toe board is raised by lifting the middle toe board lever up. The rear toe board is raised by lifting the rear toe board lever up. Once a flat has been made and the log is ready to be turned, push the appropriate toe board lever down to lower either toe board until it falls below the level of the bed.

Sawmill Operation 60HDdoc102619 4-4

Sawmill Operation

Loading, Turning And Clamping Logs

4.2 Loading, Turning And Clamping Logs

To Load Logs

1. Move the saw carriage to the front end of the frame.

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! Be sure the log clamp, turning arm and toe boards are

adjusted out of the path of the log before loading a log onto the bed. Failure to do so may result in machine damage or cause misalignment.

2. Raise the side supports on the sawmill bed to prevent the log from falling off the side of the bed.

3. Use cant hooks or loading equipment to move the log to the foot of the loading arms.

4. Roll the log onto the loader so that it is approximately centered with the sawmill bed. The log turner

will operate much easier if the log is centered on the sawmill bed.

5. Raise the loader lever to raise the log onto the sawmill bed. Simply let the loader rise until the log rolls onto the mill bed.

6. Raise the clamp up/down lever to raise the clamp up to prevent the log from rolling of the bed.

7. Lower the loading arm. You can leave it about halfway down while squaring the log. If you do so, you

can use the loading arm to collect boards with bark being sawn on them.

WARNING! After loading the log onto the mill raise the log clamp up to

p r e v e n t t h e l o g f r o m r o l l i n g o f t h e b e d .

To Turn Logs

1. Raise the turner lever to engage the log turner arm. Let the arm rise until it touches the log and starts

to turn it.

2. Spin the log against the side supports until it is turned the way you want it for the first cut. If you want to turn the log more, do the following steps.

3. Engage the clamp by raising the clamp in/out lever. Clamp the log against the side supports.

4. Lower the turner lever to lower the turner arm below the log.

5. Raise the turner arm to get a new bite on the log.

4-5 60HDdoc102619 Sawmill Operation

Sawmill Operation

Loading, Turning And Clamping Logs

6. Disengage the clamp.

The log can be turned now. Repeat steps 4 through 7 until the log is turned as desired.

Turning small cants

If you are turning a small cant, use the middle log clamp to turn the cant, instead of the log turner.

1. Lower the clamp up/down lever to lower the clamp below bed level.

2. Use the clamp in/out lever to move the clamp in, beneath the edge of the cant.

3. Raise the clamp up/down lever to raise the clamp and flip the cant.

To Use The Middle Clamp

1. Raise the clamp up/down lever to raise the clamp.

2. Use the clamp in/out lever to clamp the log against the side supports.

3. Lower the turner lever until the turner arm falls below the bed.

4. Using the clamp in/out lever, back the clamp off slightly.

5. Lower the side supports so that they are positioned below the level of your first few cuts.

6. Using the clamp in/out lever, clamp the log firmly.

Depending on the length of the log being sawn, you can use either the middle log clamp together with the front clamp and the rear one (when the log length is minimum 3.5 m), or the middle clamp together with the front clamp or the rear clamp (log length below 3.5 m). As the front and rear clamps ensure that the log lies flat on the sawmill bed, they are essential to cut long logs with internal tension accurately.

1. Use the up/down lever of the front/rear clamp to raise the clamp up.

2. Push the in/out lever of the front/rear clamp to move the clamp jaws in.

3. Perform the procedure decribed above to clamp the log against the side supports.

4. Push the up/down lever of the front/rear clamp to lower the clamp until the log lies flat on the bed.

Sawmill Operation 60HDdoc102619 4-6

Sawmill Operation

Cutting Head Up

Cutting Head Down

Cutting Head

Down

Up/Down Operation

To Level A Tapered Log

Raise the appropriate lever to raise the front, middle or rear toe board until the heart of the log measures the same distance from the bed rails at each end of the log.

4.3 Up/Down Operation

This section describes operation of the up/down system with the standard controls. See the operation section of the Accuset or PLC-Setwork manual for operation of the up/down system using these options.

1. Install a blade, if needed, and check for correct blade tension (See Section 3.6

2. Set the cutting head to the desired height. (The blade height scale shows the height of the blade

above the bed rails.)

See Figure 4-5. The up/down switch is located on the far right side of the control panel. Push the switch up to raise the cutting head; push the switch down to lower the cutting head. Hold the switch in position until the cutting head reaches the desired height, then release.

FIG. 4-5

The up/down switch is designed to return to the neutral or "off" position when released. If the switch remains engaged, manually move the switch to the neutral or "off" position. Repair the up/down drum switch.

4-7 60HDdoc102619 Sawmill Operation

CAUTION! Always make sure the up/down switch moves to the neutral

or “off” position when released to ensure that the saw head stops moving. Failure to do so may result in machine damage.

CAUTION! DO NOT try to force the carriage above the 35" (88 cm)

mark or below the 1" (2.54 cm) mark. Damage to the up/down system may result.

Sawmill Operation

3H0279

Blade Guide Arm In

Blade Guide

Arm

Out

Blade Guide Arm In

Blade Guide

Arm Out

Blade Guide Arm Operation

4.4 Blade Guide Arm Operation

1. Look down the length of the log to see its maximum width. The outer blade guide should be adjusted

to clear the widest section of the log by less than 1" (25.4 mm).

2. Use the blade guide toggle switch on the control panel to adjust the outer blade guide as necessary. Push the switch to the left to move the arm in. Push the switch to the right to move the arm out.

See Figure 4-6.

FIG. 4-6

3. Use the blade guide toggle switch to readjust the outer blade guide as you are cutting in order to keep the guide within 1" (2.5 cm) of the log. Be sure to adjust the arm back out before returning the carriage.

Sawmill Operation 60HDdoc102619 4-8

Sawmill Operation

3H0280

Carriage Forward

Forward Feed Rate

Carriage Reverse

Saw Head

Forward

Saw Head

Reverse

Forward Feed Rate

Power Feed Operation

4.5 Power Feed Operation

See Figure 4-7. The power feed system moves the carriage forward and backward by using two swi-

tches on the control panel.

FIG. 4-7

Carriage Feed Rate

The carriage feed rate switch controls the speed at which the carriage travels forward. Turn the switch clockwise to increase speed. Turn it counterclockwise to reduce speed.

Carriage Forward and Reverse

The carriage forward/reverse switch controls the direction in which the carriage travels. Turn the forward/reverse switch upward to move the carriage forward. Turn the switch down to move the carriage backward.

The middle position (as shown) is the neutral position. The power feed switch is designed to return to the neutral or "off" position when released from operating in the reverse position. If the switch remains engaged, manually move the switch to the neutral or "off" position. Repair the drum switch

(See Section 5.5

WARNING! Be sure the power feed switch is in the neutral position

before turning the key switch to the on (#1) or accessory (#2) position. This prevents accidental carriage movement which may cause serious injury or death.

4-9 60HDdoc102619 Sawmill Operation

Sawmill Operation

Power Feed Operation

Using The Power Feed

1. To move the carriage forward, push the drum switch handle forward and turn the feed rate switch

clockwise.

HINT: To get a straight cut in the first part of the board, feed the blade into the log at a slow speed. This stops the blade from flexing and dipping up or down. Turn the carriage feed rate switch to a slow speed until the whole width of the blade has entered the cut. Then use the carriage feed rate switch to increase the feed rate as desired. Maximum feed rate varies with width and hardness of the wood. Over-feeding results in motor and blade wear, and also produces a wavy cut.

2. Stop the carriage at the end of the cut by turning the carriage feed rate switch counterclockwise until the carriage stops moving. Turn the key switch to the off ( #0 ) position to stop the blade. Remove the board from the top of the log. Always disengage the blade before returning the carriage for

the next cut.

CAUTION! Be sure to stop the blade when returning the carriage.

This will not only prevent the blade from being pulled off and ruined by a wood sliver, but also will increase the life of the blade.

3. Make sure that the blade does not catch on the end of the log. Raise the carriage slightly to make sure the blade clears the log when returned.

4. Return the carriage to the front of the mill by pushing the drum switch handle down. The power feed motor will bypass the carriage feed rate switch and the carriage will automatically return at the fastest speed available.

HINT: Try to stop the blade while the heel of the blade is still on the log. Then bring the carriage back without adjusting the blade up. This lets you keep the blade at the current height setting so you can make the next blade height adjustment more quickly.

DANGER! Stay clear of the area between the trailer axle and saw

carriage. Failure to do so will result in serious injury.

Sawmill Operation 60HDdoc102619 4-10

Sawmill Operation

Cutting The Log

4.6 Cutting The Log

The following steps guide you through normal operation of the Wood-Mizer sawmill.

1. Once the log is placed where you want it and clamped firmly, turn the key switch to the #1 position.

2. Use the blade height scale to determine where to make your first cut (See Section 4.9

height scale will help you to do this. Set the blade to the desired height with the up/down switch. Make sure that the blade will clear all side supports and the clamp. Adjust the outer blade guide to clear the widest section of the log by moving the blade guide toggle switch.

NOTE: An optional laser sight is available to help determine where the blade will travel through the log. See the laser sight manual for detailed operating instructions.

3. Make sure all covers and guards are in place. Push the START button to start the blade spinning.

4. Start the water lube if necessary to prevent sap buildup on the blade. See Section 4.10

5. Feed the blade into the log slowly (See Section 4.5

increase the feed rate as desired. Always try to cut at the fastest speed you can while keeping an accurate cut. Cutting too slowly will waste blade life and lower production!

6. As you get to the end of the log, slow down the feed rate. When the teeth exit the end of the log, turn the feed rate all the way down. Push te STOP button to stop the motor. Remove the slab that you have just cut from the log.

). Once the blade completely enters the log,

). The blade

7. Use the carriage forward/reverse switch to return the carriage to the front of the mill. Always disengage the blade before returning the carriage for the next cut.

8. Repeat until the first side of the log is cut as desired. Set aside the usable flitches (boards with bark on one or both sides). You can edge them on the mill later.

9. Lower the toe boards, if they were used.Use the hydraulic levers to release the clamp and engage the log turner. Turn the log 90 or 180 degrees. Make sure the flat on the log is placed flat against side supports if turned 90 degrees. Make sure it is placed on bed rails if turned 180 degrees. If the log was turned 90 degrees and you are using toe boards to compensate for taper in the log, raise the front, middle or rear toe board again on the second side of the log until the heart is parallel with the bed.

10. Repeat the steps used to cut the first side of the log until the log is square. Cut boards from the remaining cant by adjusting the blade height for the thickness of boards that you want.

Example: Remember that the blade cuts a 1/16 - 1/8" (1.6-3.2 mm) wide kerf. If you want 1" (25.4 mm) thick boards, lower the carriage 1 1/16 - 1 1/8" (27-28.6 mm) for each board.

4-11 60HDdoc102619 Sawmill Operation

Sawmill Operation

Edging

4.7 Edging

The following steps guide you through edging boards on the Wood-Mizer sawmill.

1. Raise the side supports to 1/2 the height of the flitches, or the boards that need to be edged.

2. Stack the flitches on edge against the side supports.

3. Clamp the flitches against the side supports halfway up the flitch height. (Wider flitches should be

placed to the clamp side. When they are edged, flip them over to edge the second side without disturbing the other flitches or without having to pull them from the middle of the stack.)

4. Adjust the blade height to edge a few of the widest boards.

5. Loosen the clamp and turn the edged boards over to edge the other side.

6. Repeat steps 2-4.

7. Loosen the clamp and remove the boards that have good clean edges on both sides. Clamp the remaining flitches and repeat steps 2-5.

Sawmill Operation 60HDdoc102619 4-12

Sawmill Operation

Quarter

Scale

3H0007B

Inch Scale

Blade Height Indicator

Quarter

Scale

Blade Height Indicator

Inch Scale

Optional Cutting Procedure

4.8 Optional Cutting Procedure

In order to achieve maximum production rates, it may be desirable to leave the blade engaged when returning the carriage. (Normal operation procedures recommend disengaging the blade before returning the carriage for maximum blade life and fuel economy.)

DANGER! If leaving the blade engaged for maximum production rates,

make sure the off-bearer stays out of the path of the blade. Failure to do so will result in serious injury or death.

CAUTION! If you choose to leave the blade engaged; raise the blade

to clear the log before returning the carriage. Failure to do so may cause damage to the blade and/or sawmill.

4.9 Blade Height Scale

See Figure 4-8. The blade height scale is attached to the carriage head frame. It includes:

 a blade height indicator

 an inch scale

 a quarter scale

The scales are attached to the frame and move up and down with the carriage head. The blade indicator, used to read the inch and quarter scales, remains stationary.

4-13 60HDdoc102619 Sawmill Operation

FIG. 4-8

Sawmill Operation

Blade Height Scale

Blade Height Indicator

The blade height indicator has two horizontal, red lines on both sides. Readings should be taken with eyes level with the indicator, when the two red lines are in line. This will allow to avoid the parallax error (different scale readings depending on the angle of vision).

The Inch Scale

The horizontal red line on the blade height indicator shows how many inches the bottom of the blade is above the bed of the mill. If you know the height of your blade at each cut, you can determine the thickness of lumber you are sawing.

Example: You want to cut 1" (25 mm) random width boards from a log. Position the blade for the first cut. Move the carriage to an even measurement on the inch scale. Make a trim cut. Return the carriage for the second cut and lower it 1 1/8" (29 mm) below the original measurement. (The extra 1/8" (3 mm) allows for saw kerf and shrinkage of the lumber.)

The yellow area on the scale identifies where the blade could encounter a side support or log clamp. Check that these items are below the blade level before sawing.

The Quarter Scale

See Table 4-1. Two quarter scales are provided with four sets of marks. Each set represents

a specific lumber thickness. Saw kerf and shrinkage allowance are included, but actual board thickness will vary slightly depending on blade thickness and tooth set.

To choose which scale to use, determine what finished thickness you want to end up with. The Grade Hardwood Quarter Scale provides thicker finished boards usually required by commercial buyers. The Standard Quarter Scale allows for kerf and shrinkage of finished boards suitable for most custom applications. Always check with your customer before you saw to determine what actual finished thickness is required.

Standard Quarter Scale Grade Hardwood Quarter Scale

Scale Actual Board Thickness Scale Actual Board Thickness

4/4 1" (25 mm) 4/4 1 1/8" (29 mm)

5/4 1 1/4" (32 mm) 5/4 1 3/8" (35 mm)

6/4 1 1/2" (38 mm) 6/4 1 5/8" (41 mm)

8/4 2" (51 mm) 8/4 2 1/8" (54 mm)

TABLE 4-1

To use the quarter scale, look at the blade height indicator. Line up the horizontal red line on the indicator with the nearest mark on the scale you want to use. Make a trim cut. When you return the carriage for a second cut, lower the carriage to the next mark on the scale. This mark shows where the blade should be positioned to cut a certain thickness of lumber, without having to measure on the inch scale.

Example: You want to cut 1" (25 mm) (4/4) random width boards from a log. Position the blade for the first cut. Adjust the quarter scale so a 4/4 mark is aligned with the red line on the indicator. Make

Sawmill Operation 60HDdoc102619 4-14

Sawmill Operation

Turn valve counterclockwise to open; Clockwise to close

3H0129

Turn valve counterclockwise

to open; clockwise to close

Water Lube Operation

a trim cut. Return the carriage for the second cut. Now, instead of having to measure down 1 1/8" (29 mm) on the inch scale, you can simply lower the blade so the indicator is aligned with the next 4/4 mark on the quarter scale. Turn the log 90 degrees and repeat.

4.10 Water Lube Operation

The Water Lube System keeps the blade clean. Water flows from a 5-gallon (18.9 liter) bottle through a hose to the blade guide where the blade enters the log. A valve in the bottle cap controls the amount of water flow.

See Figure 4-9.

FIG. 4-9

A solenoid valve will automatically start the water flow when the power feed is activated in the forward direction. The solenoid will stop the water flow when the feed switch is returned to the neutral position.

Not all types of wood require the use of the Water Lube System. When it is needed, use just enough water to keep the blade clean. This saves water, and lowers the risk of staining the boards with water. Usual flow will be 1-2 gallons (3.8-7.6 liters) per hour.

Before removing the blade, engage the blade. Let the blade spin with water running on it for about 15 seconds. This will clean the blade of sap buildup. Wipe the blade dry with a rag before storing or sharpening.

For further lubrication benefits, add one 12oz. bottle of Wood-Mizer Lube Additive to 5 gallons of water. Wood-Mizer Lube Additive enables some previously impossible timbers to be cut by significantly reducing resin buildup on the blade. It helps to reduce heat buildup, wavy cuts, and blade noise. This biodegradable and environmentally friendly pre-mix includes a water softener

4-15 60HDdoc102619 Sawmill Operation

additive, so it works with hard water.

WARNING! Use ONLY water and Wood-Mizer Lube Additive with the

water lube accessory. Never use flammable fuels or liquids such as diesel fuel. If these types of liquids are necessary to clean the blade, remove it and clean with a rag. Failure to do so can damage the equipment and may result in serious injury or death.

If you are sawing in freezing temperatures, remove the water lube bottle from the sawmill when done sawing and store it in a warm place. Blow any remaining water from the water lube hose.

See the separate LubeMizer System manual for operation instructions.

4.11 LT70 WIDE Lube System Operation

See Figure 4-1. The Lube System keeps the blade and the wheels clean and cools them. When

shut-off valve (A) is open, the coolant (ACP-1 oil) flows from the tank (B) through hoses to surfaces of the wheels. Oil dispensers (C) located on the saw head control the amount of oil flow.

Sawmill Operation

LT70 WIDE Lube System Operation

FIG. 4-1

Use just as much coolant as it is necessary to keep the blade clean. Usually, it is sufficient to set the dispensers so that one drop flows every 3 seconds.

WARNING! Never use flammable fuels or liquids! If these types of

liquids are necessary to clean the blade, remove it and clean with a rag. Failure to do so may result in serious injury or death.

Before removing the blade, start the motor with the START button. Let the blade spin with oil running on it for about 15 seconds. This will clean the blade of sap buildup. Wipe the blade dry with a rag

Sawmill Operation 60HDdoc102619 4-16

Sawmill Operation

Locking Pin

Outrigger Leg

Travel Lock Pin

80_008

Adjustment Bolt

Outrigger Leg

Travel Lock Pin

Locking Pin

Preparing The Sawmill For Towing

before storing or sharpening.

If you are sawing in temperatures below -20

C (-4oF), remove the oil tank from the sawmill when

done sawing and store it in a warm place. Blow any remaining oil from the lube hose.

4.12 Preparing The Sawmill For Towing

The Wood-Mizer trailer package makes transporting your sawmill easy and convenient. To get your sawmill ready for towing, follow these instructions.

1. Move the saw carriage to the front end of the sawmill. Raise the rear outriggers.

See Figure 4-2. Secure outrigger with both Locking Pin and Travel Lock Pin.

FIG. 4-2. ADJUSTABLE OUTRIGGER.

CAUTION! Be sure the outrigger base is adjusted properly before

securing in travel position with the lock pin.

CAUTION! Do not adjust the outrigger base height while there is

weight on it. Damage to the outrigger may result.

2. Move the clamp all the way in toward the main bed frame tube.

4-17 60HDdoc102619 Sawmill Operation

Sawmill Operation

Rest Pin

Lock Pin

Preparing The Sawmill For Towing

CAUTION! Move the hydraulic clamp and turner to provide maximum

ground clearance before towing. Failure to do so may result in damage to the sawmill.

3. Move the carriage forward to the travel position over the rear bed rail. Position the hole in the saw head over the travel rest pin.

4. Move the rest pin to its travel position. Secure the rest pin using locking pin.

See Figure 4-3.

FIG. 4-3

5. Lower the saw head until it is it contacts the stop blocks on the mast rails. Secure the saw head with saw head protection belt.

Sawmill Operation 60HDdoc102619 4-18

Sawmill Operation

Protection Belt

Preparing The Sawmill For Towing

See Figure 4-4.

FIG. 4-4

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.

6. If necessary, adjust the stop located at the bottom of the mast so the saw head contacts them after it is lowered 3/4" (19mm) past where it contacts the rest pin.

4-19 60HDdoc102619 Sawmill Operation

Sawmill Operation

Loosen jam nut and turn bolt to raise or lower stop bolt

Safety Chain

Preparing The Sawmill For Towing

See Figure 4-5.

FIG. 4-5

7. Use the hydraulic controls to raise the log turner and loader as high as they will go. Manually lift the loader and hook the loader chains to the sawmill frame. Use the hydraulic loader lever to lower the loader until the chains are tight. Push the loader lever down to bring the loader feet up to the loader arms.

8. Hook the carriage safety chain located at the bottom of the carriage to the bracket at the bottom of the mast.

See Figure 4-6.

FIG. 4-6

CAUTION! Check to be sure the saw head safety chain is secured

before towing the sawmill. Failure to properly secure the saw head can result in severe machine damage. Be sure the blade housing and pulley covers are in place and secure. Use the safety retainer pin and

Sawmill Operation 60HDdoc102619 4-20

Sawmill Operation

Preparing The Sawmill For Towing

cable to fasten blade housing covers.

9. Remove all loose objects from the bed of the mill.

10. Place both fenders in the slots located behind the trailer tires. Raise and secure all but the very front

outrigger.

See the trailer operator’s manual for specific information regarding hitch operation and towing the sawmill.

4-21 60HDdoc102619 Sawmill Operation

SECTION 5 MAINTENANCE

This section lists the maintenance procedures that need to be performed.

Maintenance

Wear Life

See the Maintenance Log

and intervals. Keep track of machine maintenance by filling in the machine hours and the date you perform each procedure.

This symbol identifies the interval (hours of operation) at which each maintenance procedure should be performed.

Be sure to refer to option and engine manuals for other maintenance procedures.

5.1 Wear Life

See Table 5-1. This chart lists estimated life expectancy of common replacement parts if proper

maintenance and operation procedures are followed. Due to the many variables which exist during sawmill operation, actual part life may vary significantly. This information is provided so that you may plan ahead in ordering replacement parts.

located after this section for a complete list of maintenance procedures

Part Description Estimated

Life

Up/Down Motor Brushes 1000 hours

Up/Down Motor 2000 hours

Hydraulic Pump Solenoid 750 hours

Power Feed Motor Brushes 750 hours

Up/Down Drum Switch 1000 hours

Hydraulic Pump Motor Brushes 750 hours

Power Feed Drum Switch 1200 hours

Drive Belt 1250 hours

Power Feed Motor 1500 hours

Up/Down Belt 2000 hours

TABLE 5-1

Maintenance 60HDdoc102619 5-1

Maintenance

Blade Guides

5.2 Blade Guides

1. Check the rollers for performance and wear every blade change. Make sure the rollers are clean and

spinning freely. If not, rebuild them. Replace any rollers which have worn smooth or have become cone shaped.

Steel Guide Blocks

2. Inspect the blocks at every blade change for damage or wear.

As the blocks wear, the front inside corner will wear more than the body of the block. When the corner wears far enough, sawing performance will be affected even if the body of the block is adjusted properly to the blade. At this point, the block should be replaced. If you have access to the appropriate equipment, you can grind or mill the blocks to a new flat surface and reuse them. It is recommended you develop a routine schedule for replacing the blade guide blocks based on your sawing conditions and experience.

FIG. 5-0

3. Check the ceramic inserts are properly spaced from the bottom of the blade every 25 hours of operation. As the rollers wear, the gap between the blade and inserts will become larger. Use the provided shim or a feeler gauge to check the inserts are adjusted 0.3-0.5 mm from the blade.

See Figure 5-1. To adjust the disks up, loosen the bottom guide disk mounting bolt and clamp bolt. Use the provided adjustment tool. to raise bottom disk Retighten the bottom disk mounting bolt and clamp bolt.

5-2 60HDdoc102619 Maintenance

Maintenance

Loosen

mounting

bolt and

clamp bolt

Use bottom disk

adjustment tool to raise bottom disk

Use bottom disk adjustment tool to raise bottom disk

Loosen

mounting

bolt and

clamp bolt

A/R

Steel Guide Blocks

IMPORTANT! The ceramic inserts should be parallel to the blade.

Check the space between the insert and the blade at each side of the insert to insure it is parallel. Use the appropriate outer adjustment bolt to tilt the insert mounting plate so the insert is parallel to the blade.

FIG. 5-1

After adjusting the drive side blade guide block insert up, check the deflector. If necessary, loosen the two deflector mounting screws and adjust the deflector so it does not touch the blade.

Inspect the blade guide assemblies for proper alignment every time you change the blade. See 8.1

for blade guide adjustment instructions.

WARNING! Blade guide alignment is essential for optimal cutting

performance, blade life and safety. Failure to check and maintain proper blade guide alignment will result in stress cracks forming in the blade. These cracks will lead to premature blade breakage. If the blade breaks during operation and the blade has multiple stress cracks, the blade could shatter into several pieces and escape from the protective guards of the sawmill. Small blade pieces projected into the area around the sawmill creates a safety hazard for the operator and any bystanders surrounding the mill.

WARNING! DO NOT use blades with stress cracks. Blades with stress

cracks can shatter causing bodily injury and/or machine damage.

Preventing sap buildup on the blade is critical when using the high-performance blade guide system. If the wood you are sawing leaves sap buildup using plain water in the blade lube system, use Wood-Mizer lube additive (Part No. 033439).

Maintenance 60HDdoc102619 5-3

Maintenance

Throat Screw

Make sure the blade screw in the top center of the C-frame is 1/16" (1.5 mm) away from the blade. If not, loosen the nut and adjust the screw as necessary. Check the screw every blade change. Failing to maintain this adjustment will lead to early blade breakage.

See Figure 5-2.

FIG. 5- 2

5.3 Sawdust Removal

1. Remove the excess sawdust from the blade wheel housings and sawdust chute every blade change.

2. Remove all sawdust and debris from around the velocity fuse valves every 8 hours of operation.

The valves are located at the bottom of the log loader cylinders.

3. Remove sawdust buildup as necessary from the battery box lid and top rail cover.

4. Remove sawdust buildup from the track rail cover.

CAUTION! Failure to remove sawdust buildup from the battery box lid

and/or track rail cover could result in damage to these parts when the saw head is lowered to its lowest position.

5.4 Carriage Track, Wiper & Scrapers

Properly maintaining the sawmill carriage track is critical in preventing corrosion that can cause pitting and scaling on the rail surfaces. Pitted and scaled surfaces can, in turn, cause rough cuts or jerky power feed movement.

See Figure 5-3.

1. Clean track rails to remove any sawdust and sap buildup every eight hours of operation.

Use a light-grade sandpaper or emery cloth to sand off any rust or other adhering particles from the rails.

5-4 60HDdoc102619 Maintenance

Maintenance

25AR25

Carriage Track, Wiper & Scrapers

CAUTION! Keep track rails free of rust. Formation of rust on the track

rail in the areas where the cam bearings roll can cause rapid deterioration of the track rail's surface.

Lubricate the rails by wiping them with Dexron III ATF transmission fluid, 10W30 motor oil, or 3-in-1 turbine oil. Oil lubrication will help protect the rails from corrosive elements such as acid rain and/or moisture from nearby bodies of saltwater (if applicable). This lubrication is essential to maintain the integrity of the track rails and track rollers and to achieve long service life.

2. Remove sawdust from the track roller housings and lubricate the felt track wiper every twenty-five hours of operation.

Remove the track roller housing covers and brush any sawdust buildup from the housings.

3. Check the track scrapers as needed. Make sure the scrapers fit firmly against the rail. If a track scraper needs to be adjusted, loosen the screw, push the scraper downward until it fits firmly against the rail, and retighten the thumb screw.

Clean and lubricate the upper track wiper every twenty-five hours of operation. Unbolt the wiper, remove it from the sawmill, and remove any sawdust buildup. Soak the felt wiper with Dexron III transmission fluid, 10W30 motor oil or 3-in-1 turbine oil.

CAUTION! Reinstall the track wiper so that it lightly touches the track

rail. If the wiper presses too firmly against the rail, it can cause the power feed to bind.

Maintenance 60HDdoc102619 5-5

Maintenance

Clean sawdust from track roller housings

Clean and lubricate track wiper

Adjust track

scrapers

600011

Track Rail

Clean and lubricate track wiper

Clean sawdust from track roller housings

Track

Rail

Adjust track

scrapers

Vertical Mast Rails

5.5 Vertical Mast Rails

5.6 Drum Switches

FIG. 5-3

Clean and lubricate the vertical mast rails every 50 hours of operation. Clean with solvent and remove any rust with a light-grade sand paper or emery cloth. Lubricate the mast with motor oil or automatic transmission fluid (ATF).

CAUTION! Never use grease on the mast rails as it will collect

sawdust.

Lubricate the up/down and power feed drum switch contacts inside the control panel every fifty hours of operation. Use only contact grease supplied by Wood-Mizer. Remove the control panel cover. Use a cotton swab to apply grease to the switch contact ends.

WARNING! Drum switch grease contains Petroleum Hydrocarbon

Lubricant. Eye and skin irritant. If introduced into eyes, flush with water for at least 15 minutes. If film or irritation persists, seek medical attention. Wash skin with soap and water. If ingested, do not induce

5-6 60HDdoc102619 Maintenance

Maintenance

5050AR50150

Miscellaneous

vomiting - contact a physician. KEEP OUT OF THE REACH OF CHILDREN.

5.7 Miscellaneous

1. Oil all chains with Dexron III ATF every fifty hours of operation.

CAUTION! Do not use chain lube. It causes sawdust buildup in chain

links.

2. Apply a thin film of a NLGI No. 2 grade lithium grease to the blade guide arm every fifty hours of operation to help prevent it from rusting.

3. Adjust the blade guide arm drive chain as necessary. To adjust the chain, loosen the blade guide arm motor mounting plate bolts and slide the motor to take slack out of the chain.

4. Grease the clamp mechanism, loading arms and side supports with a NLGI No. 2 grade lithium grease every fifty hours of operation.

5. Check the mill alignment every setup (See SECTION 7

6. Make sure all safety warning decals are readable. Remove sawdust and dirt. Replace any damaged

or unreadable decals immediately. Order decals from your Customer Service Representative.

7. Lubricate the actuator arm, bracket and braking lever axis every 150 hours of operation with a NLGI No. 2 grade lithium grease. Apply grease to the grease fitting shown below.

Maintenance 60HDdoc102619 5-7

Maintenance

3H0748

Turnbuckle

Brake Blocks

Brake Adjustment

5.8 Brake Adjustment

1. The engine RPM should be 1150 when idling and 3000 when running.

2. The throttle cable mounting bolt should be placed in the middle hole of the acceleration lever located

on the engine.

3. Adjust the brake using turnbuckle so that, the braking time is about 5 seconds and the brake blocks are not touching the blade wheel with the linear actuator fully closed (minimum actuator length).

4. With the actuator fully opened (maximum actuator length) during braking, the spring supporting the actuator should be deflected as well as the spring guard along with the actuator mount block with shaft should slide.

5-8 60HDdoc102619 Maintenance

Maintenance

600027

Turn clockwise to tighten

Turn counter - clockwise to loosen

Turn clockwise to tighten

Turn counterclockwise to loosen

Drive Belt Adjustment

5. Never increase the engine RPM by moving manually the acceleration lever on the engine. Increasing the engine RPM when the brake is engaged will result in quick clutch damage.

The throttle cable should move smoothly and easily in the housing.

5.9 Drive Belt Adjustment

DANGER! Never adjust the drive belts and the drive belt bracket while

the motor is running. Failure to do so may result in serious injury.

Periodically check the drive belt for wear. Replace any damaged or worn belts as needed.

See Figure 5-4. Adjust proper drive belt tension using the bolt located between the drive side wheel covers. To tighten drive belt turn the bolt clockwise. To loosen drive belt turn the bolt counterclockwise.

Maintenance 60HDdoc102619 5-9

FIG. 5-4

Maintenance

750

Adjustment Nuts

Up/Down System

5.10 Up/Down System

Adjust the up/down chain tension as needed. Measure chain tension with the head all the way to the top of the vertical mast. Find the chain adjusting bolt at the bottom of the mast. Use the adjustment nut to adjust the bolt until the center of the chain can be deflected 3/4” (1.9cm) with a 5 lb. (2.3 KG) deflection force.

CAUTION! Do not over-tension the chain. Over-tensioning the chain

may lead to early failure of the gear reducer.

1. Adjust the motor belt tension as needed. To do this, loosen the motor mounting bolts and turn

FIG. 5- 4

adjustment bolts clockwise or counterclockwise evenly, until the belt is properly tensioned. Tighten the motor mounting bolts.

5-10 60HDdoc102619 Maintenance

Maintenance

Mounting Bolts

Adjustment Bolts

80_105

Adjustment Bolts

Mounting Bolts

750

Up/Down System

FIG. 5- 4

Periodically check the belt for wear. Replace any damaged or worn belts as needed.

2. When oil leaks from the gear reducer please contact Customer Service.

3. Inspect the up/down motor brushes every 750 hours of operation. Remove brush dust and replace

the brushes if they worn to a length of 5/8” or shorter.

CAUTION! Do not operate the up/down system if the motor brushes

are worn shorter than 5/8”. Damage to the up/down motor may result.

Maintenance 60HDdoc102619 5-11

Maintenance

Charging The Battery (DC Only)

5.11 Charging The Battery (DC Only)

DANGER! Batteries expel explosive gases. Keep sparks, flames,

burning cigarettes, or other ignition sources away at all times. Always wear safety goggles and a face shield when working near batteries.

Failure to do so will cause serious injury.

WARNING! Battery posts, terminals and related accessories contain

lead and lead compounds, chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling.

WARNING! Charge the battery in a well ventilated area. Do not

attempt to charge a frozen battery.

If electrolyte is spilled or splashed on any surface of the machine, it should be neutralized and rinsed with clean water.

CAUTION! Do not overcharge the battery. Overcharging may reduce

the overall service life of the battery.

CAUTION! Be sure the battery is fully charged before transporting the

sawmill. If the battery is not fully charged, excessive vibration could reduce the overall service life of the battery.

NOTE: A fuse terminal extension stud is provided in the fuse box.

The extension may be used to temporarily connect a battery charger or jumper cables to raise the saw head from the towing position so the

battery box lid can be removed. See 6.8

fuse terminal extension stud.

5-12 60HDdoc102619 Maintenance

for instructions concerning the

Maintenance

Hydraulic System

1. Raise the saw head to access the battery box.

IMPORTANT: Be careful not to overcharge the battery, especially

when using a high-rate or “boost” charger (40 amps or higher). These are intended to quickly charge a good battery that is discharged. They are not intended for unattended or long-term charging.

2. After the battery is completely recharged, remove the negative charger/jumper cable from ground.

3. Remove the positive charger/jumper cable from the battery.

4. Replace the battery box lid and replace the flat washers and nuts.

5.12 Hydraulic System

1. Check the hydraulic fluid level every fifty hours of operation. Add fluid as necessary. The level in the

hydraulic pump should be 3/4" (19mm) from the top with all cylinders collapsed.

If humidity is a problem or the mill is used outside in humid weather, drain and replace two quarts (.95 liters) of fluid every six months. This will drain any accumulated water and help prevent pump failure due to water ingestion. It also will prevent excessive fluid wear and allow the fluid to maintain its hot end performance. If humidity is not a problem, drain and replace one gallon (3.8 liters) of fluid every year to prevent fluid wear.

See Figure 5-5. If you are operating in temperatures -20° to 100° F (-29° to 38° C), use an all-weather hydraulic fluid such as Exxon Univis J26. For alternate fluids and/or other temperature ranges, refer to the chart below. Operating above the recommended temperature range of a fluid could result in excessive pump wear. Operating below the recommended temperature range could result in reduced hydraulic cylinder speed.

Maintenance 60HDdoc102619 5-13

Maintenance

TEMPERATURE

HYDRAULIC FLUID

Level A Fluid

Level B Fluid

Level C Fluid

HD0049B

120°

49°

40°

5°

80°

27°

0°

-18°

100°

38°

20°

-7°

60°

16°

-20°

-29°

110°

44°

30°

-1°

70°

21°

-10°

-23°

90°

32°

10°

-12°

50°

10°

-30°

-35°

TEMPERATURE

HYDRAULIC FLUID

Level A Fluid

Level B Fluid

Level C Fluid

500

750

Hydraulic System

FIG. 5- 5

2. Replace the hydraulic system cartridge filter every 500 hours of operation.

3. Inspect the hydraulic pump motor brushes every 750 hours of operation. Remove brush dust and

replace the brushes if they worn to a length of 1/4” or shorter.

CAUTION! Do not operate the hydraulic system if the pump motor

brushes are worn shorter than 1/4”. Damage to the pump motor may result.

4. Periodically check all hydraulic lines and fitting as needed. Replace as necessary.

5-14 60HDdoc102619 Maintenance

Maintenance

Adjustment Nuts

Sm0145

Adjustment Nuts

750

Power Feed

5.13 Power Feed

1. Adjust the power feed chain as needed. Measure the power feed chain tension with the saw head all

the way toward the front of the mill. Use the adjustment nut on the feed tensioner at the front of the mill to tighten or loosen the power feed chain. Adjust the chain until it measures 7 to 8 inches (17.8 to 20.3 cm) from the top of the top rail at its lowest point.

CAUTION! Do not overtighten the feed chain. Damage to the gear

reducer may result.

See Figure 5-6.

FIG. 5-6

2. Inspect the power feed motor brushes every 750 hours of operation. Remove brush dust and replace the brushes if they worn to a length of 5/8” or shorter.

CAUTION! Do not operate the power feed system if the feed motor

brushes are worn shorter than 5/8”. Damage to the feed motor may result.

Maintenance 60HDdoc102619 5-15

MAINTENANCE LOG

(Check Engine And Option Manuals For Additional Maintenance Procedures)

Check Blade Screw See Section 5.2 Daily - Every Blade Change Check Blade Guide Performance See Section 5.2

Remove Excess Sawdust From Blade Wheel Housings And Sawdust Chute

Clean Sawdust From Hydraulic Loader Fuses, Battery Box Lid & Track Cover

Clean And Lubricate Track See Section 5.4 Remove Sawdust From Upper Track Roller Housings See Section 5.4 Clean And Lubricate Upper Track Wiper See Section 5.4

PROCEDURE

Lubricate drum switches See Section 5.5 Grease pivot points and bearings/Oil chains See Section 5.6 Lubricate blade tensioner screw See Section 5.6 Check brake strap tension See Section 5.8 Check belt tensions See Section 5.9

Check feed & up/down chain tensions See Section 5.11

Check up/down & power feed gear box fluid levels See Section 5.11

Inspect hydraulic lines & fittings See Section 5.10 Check hydraulic fluid level See Section 5.10 Replace hydraulic system filter See Section 5.10

Inspect hydraulic pump, power feed and up/down motor brushes

See Section 5.3 Daily - Every Blade Change

See Section 5.3

MANUAL

REFERENCE

See Section 5.11

See Section 5.12

See Section 5.10 See Section 5.11 See Section 5.12

Daily - Every Blade Change

Daily - Every 8 Hours

Bi-Weekly - Every 25 Hours

FILL IN THE DATE AND THE MACHINE HOURS AS YOU PERFORM EACH PROCEDURE.

50 HRS 100 HRS 150 HRS 200 HRS 250 HRS 300 HRS 350 HRS 400 HRS 450 HRS 500 HRS

DAILY MAINTENANCE PROCEDURES

TOTAL HOURS OF OPERATION

A SHADED BOX INDICATES MAINTENANCE IS NOT NEEDED AT THIS TIME.

Maintenance 60HDdoc102619 5-1

(Check Engine And Option Manuals For Additional Maintenance Procedures)

PROCEDURE

MANUAL

REFERENCE

See Section 5.11

Check feed & up/down chain tensions See Section 5.11

See Section 5.12

Check up/down & power feed gear box fluid levels See Section 5.11

See Section 5.12

Inspect hydraulic lines & fittings See Section 5.10 Check hydraulic fluid level See Section 5.10 Replace hydraulic system filter See Section 5.10

Inspect hydraulic pump, power feed and up/down motor brushes

See Section 5.10 See Section 5.11 See Section 5.12

MAINTENANCE LOG

FILL IN THE DATE AND THE MACHINE HOURS AS YOU PERFORM EACH PROCEDURE.

A SHADED BOX INDICATES MAINTENANCE IS NOT NEEDED AT THIS TIME.

550 HRS 600 HRS 650 HRS 700 HRS 750 HRS 800 HRS 850 HRS 900 HRS 950 HRS 1000 HRS

TOTAL HOURS OF OPERATION

5-2 60HDdoc102619 Maintenance

(Check Engine And Option Manuals For Additional Maintenance Procedures)

PROCEDURE

MANUAL

REFERENCE

See Section 5.11

Check feed & up/down chain tensions See Section 5.11

See Section 5.12

Check up/down & power feed gear box fluid levels See Section 5.11

See Section 5.12

Inspect hydraulic lines & fittings See Section 5.10 Check hydraulic fluid level See Section 5.10 Replace hydraulic system filter See Section 5.10

Inspect hydraulic pump, power feed and up/down motor brushes

See Section 5.10 See Section 5.11 See Section 5.12

MAINTENANCE LOG

FILL IN THE DATE AND THE MACHINE HOURS AS YOU PERFORM EACH PROCEDURE.

A SHADED BOX INDICATES MAINTENANCE IS NOT NEEDED AT THIS TIME.

1050 HRS 1100 HRS 1150 HRS 1200 HRS 1250 HRS 1300 HRS 1350 HRS 1400 HRS 1450 HRS 1500 HRS

TOTAL HOURS OF OPERATION

Maintenance 60HDdoc102619 5-3

(Check Engine And Option Manuals For Additional Maintenance Procedures)

PROCEDURE

MANUAL

REFERENCE

See Section 5.11

Check feed & up/down chain tensions See Section 5.11

See Section 5.12

Check up/down & power feed gear box fluid levels See Section 5.11

See Section 5.12

Inspect hydraulic lines & fittings See Section 5.10 Check hydraulic fluid level See Section 5.10 Replace hydraulic system filter See Section 5.10

Inspect hydraulic pump, power feed and up/down motor brushes

See Section 5.10 See Section 5.11 See Section 5.12

MAINTENANCE LOG

FILL IN THE DATE AND THE MACHINE HOURS AS YOU PERFORM EACH PROCEDURE.

A SHADED BOX INDICATES MAINTENANCE IS NOT NEEDED AT THIS TIME.

1550 HRS 1600 HRS 1650 HRS 1700 HRS 1750 HRS 1800 HRS 1850 HRS 1900 HRS 1950 HRS 2000 HRS

TOTAL HOURS OF OPERATION

5-4 60HDdoc102619 Maintenance

(Check Engine And Option Manuals For Additional Maintenance Procedures)

PROCEDURE

MANUAL

REFERENCE

See Section 5.11

Check feed & up/down chain tensions See Section 5.11

See Section 5.12

Check up/down & power feed gear box fluid levels See Section 5.11

See Section 5.12

Inspect hydraulic lines & fittings See Section 5.10 Check hydraulic fluid level See Section 5.10 Replace hydraulic system filter See Section 5.10

Inspect hydraulic pump, power feed and up/down motor brushes

See Section 5.10 See Section 5.11 See Section 5.12

MAINTENANCE LOG

FILL IN THE DATE AND THE MACHINE HOURS AS YOU PERFORM EACH PROCEDURE.

A SHADED BOX INDICATES MAINTENANCE IS NOT NEEDED AT THIS TIME.

2050 HRS 2100 HRS 2150 HRS 2200 HRS 2250 HRS 2300 HRS 2350 HRS 2400 HRS 2450 HRS 2500 HRS

TOTAL HOURS OF OPERATION

Maintenance 60HDdoc102619 5-5

(Check Engine And Option Manuals For Additional Maintenance Procedures)

PROCEDURE

MANUAL

REFERENCE

See Section 5.11

Check feed & up/down chain tensions See Section 5.11

See Section 5.12

Check up/down & power feed gear box fluid levels See Section 5.11

See Section 5.12

Inspect hydraulic lines & fittings See Section 5.10 Check hydraulic fluid level See Section 5.10 Replace hydraulic system filter See Section 5.10

Inspect hydraulic pump, power feed and up/down motor brushes

See Section 5.10 See Section 5.11 See Section 5.12

MAINTENANCE LOG

FILL IN THE DATE AND THE MACHINE HOURS AS YOU PERFORM EACH PROCEDURE.

A SHADED BOX INDICATES MAINTENANCE IS NOT NEEDED AT THIS TIME.

2550 HRS 2600 HRS 2650 HRS 2700 HRS 2750 HRS 2800 HRS 2850 HRS 2900 HRS 2950 HRS 3000 HRS

TOTAL HOURS OF OPERATION

5-6 60HDdoc102619 Maintenance

Troubleshooting Guide

Sawing Problems

SECTION 6 TROUBLESHOOTING GUIDE

6.1 Sawing Problems

PROBLEM CAUSE SOLUTION

Blades Dull Quickly Dirty logs Clean or debark logs, especially on entry

side of the cut.

When grinding teeth, heating too much and causing teeth to soften

Poor sharpening techniques Make sure the tip is being sharpened

Blades Break Prematurely Poor sharpening techniques See the Sharpener Manual.

Tension too tight Tension blade to recommended

Blade Does Not Track Right on Drive Wheel

Drive Belts Wear Prematurely or Jump

Cant adjustment is incorrect Readjust.

Engine/motor and drive pulleys out of alignment

Grind just enough metal to restore sharpness to the teeth. Use water/coolant while sharpening blade.

completely (see the Sharpener Manual).

specifications.

Align pulleys - See Section 7.6

6-1 60HDdoc102619 Troubleshooting Guide

Troubleshooting Guide

Sawing Problems

PROBLEM CAUSE SOLUTION

Boards Thick Or Thin On Ends Or Middle Of Board.

Height Adjustment Jumps or Stutters When Moving Up or Down.

Lumber Is Not Square Vertical side supports not square

Sawdust Builds Up On Track Excessive oiling Do not oil track.

Stress in log which causes log to not lay flat on the bed.

Set in teeth. Resharpen and reset blade.

Bed rails misaligned. Realign sawmill.

Up/down chain improperly adjusted.

Up/down belt loose. Replace belt.

to bed

Blade not parallel to bed rails Adjust bed rails parallel to blade.

Sawdust or bark between cant and bed rails

Tooth set problems Resharpen and reset blade.

After log has been squared, take equal cuts off opposing sides. Take a board off the top. Turn the log 180 degrees. Take a board off. Repeat, keeping the heart in the middle of the cant, and making it your last cut.

Use front and rear log clamps.

See Section 4.2

Adjust up/down chain.

Adjust side supports.

Remove particles.

Track wipers worn Adjust wipers to firmly contact track.

Track is sticky Clean track with solvent and apply silicone

spray.

Wavy Cuts Excessive feed Slow down the feed rate.

Improperly sharpened blade (This will be the problem 99% of the time!)

Blade guides improperly adjusted Adjust blade guides.

Sap buildup on blade Use Water Lube.

Tooth set problem Resharpen and reset blade.

Resharpen blade (See Sharpener Manual read entire manual!)

Troubleshooting Guide 60HDdoc102619 6-2

Troubleshooting Guide

Electrical Problems

6.2 Electrical Problems

PROBLEM CAUSE SOLUTION

Up/down Excessively Slow. Up/down belt loose. Adjust belt to be as loose as possible without

slipping.

Up/down Or Power Feed Motors Do Not Work.

Power Feed Motor Does Not Work.

Up/Down Or Power Feed Switches Remain Engaged When Switch Is Released.

Worn up/down motor or motor brushes.

Worn/dirty contacts in drum switch.

Bad key switch. Replace key switch.

Circuit breaker. Reset breaker in control box (See Section

Burned-out motor. Replace motor.

Bad connection on battery post or loose wire.

Sawdust buildup in the power feed pulleys.

Worn or dirty contacts in drum switch.

Replace up/down motor or motor brushes.

Replace switch or remove control panel cover and clean contacts.

6.9).

Check for loose wire or terminal connections.

Sawdust buildup puts mechanical bind on power feed which causes automatic motor protection circuit to activate. Remove sawdust from pulleys and operate normally. If motor does not operate after sawdust removal, reset circuit breaker on the front of the control box.

Manually move the power feed or up/down switch back to neutral or "off" position. Replace drum switch or remove control panel cover and clean and lubricate contacts NOTE: Use only contact grease supplied by Wood-Mizer.

Drum switch spring broken. Manually move the power feed or up/down

switch back to neutral or "off" position. Replace drum switch spring.

6-3 60HDdoc102619 Troubleshooting Guide

Troubleshooting Guide

Electrical Problems

PROBLEM CAUSE SOLUTION

Up/Down Or Power Feed Motors Overheat And Lose Power.

Everything Works And Then Cuts Out - Works Again.

Nothing Works Electrically. Dead battery. Check for short circuit or turn OFF key.

Intermittent Or Permanent Loss Of Accessory Motor Functions Occurs (Up/down, Fwd/rev, Blade Guide Functions Do Not Work).

System overload or bind occurred.

Normal operation factors exceeded (eg: up/down control jockeyed excessively).

Bad battery, fuse, or ground connection.

Blown fuse. Replace.

Corrosion on battery post. Remove connection and clean posts.

Loose connections at LED circuit board or alternator.

Bad connections at accessory solenoid or bad solenoid.

Correct problem (See Section 6.3 ). Allow

motor to cool before restarting.

Allow motor to cool before restarting.

Check and tighten connections.

Check all connections at accessory solenoid. If connections are good, replace solenoid.

Troubleshooting Guide 60HDdoc102619 6-4

Troubleshooting Guide

Power Feed Problems

6.3 Power Feed Problems

NOTE: The power feed circuit board is equipped with LED lights to help determine if the circuit board

or feed rate switch are the cause of any feed problems you may encounter. See Section 6.4

instructions.

PROBLEM CAUSE SOLUTION

for

Power Feed Is Jerky At Low Speeds Or Does Not Move Until Speed Is Above Halfway Mark.

Power Feed Is Jerky When Shaft Of Feed Rate Dial Is Moved Back And Forth.

Power Feed Is Jerky, But Power Feed Motor Runs Properly At All Speeds.

Drum switch is dirty. Clean drum switch and lubricate with

contact grease supplied by Wood-Mizer.

Drum switch contacts are bad Check that contacts are in good condition

and positively close circuit.

Components are loose or wires are broken.

Variable speed switch is bad perform the variable speed switch test.

Problem is mechanical. Refer to the Mechanical Test.

Replace or repair PC board.

Replace variable speed switch.

6-5 60HDdoc102619 Troubleshooting Guide

Troubleshooting Guide

Power Feed Problems

PROBLEM CAUSE SOLUTION

Power Feed Motor Overheats. Middle track oiler is dragging. Clean and lubricate the middle track oiler.

Allow motor to cool before restarting.

Ground is not level. Level the sawmill. Allow motor to cool

before restarting.

Track roller bearing drag is excessive.

Chain is dragging. Make sure chain is centered on idler;

Chain is improperly tensioned. Adjust chain tension. Allow motor to cool

Operator Seat option load is excessive.

Power feed is binding. Adjust belt tension; Check condition of

Saw head load is excessive. Avoid unnecessary modifications to saw

Blade is dull or improperly set. Use proper blade maintenance procedures

Replace the roller. Allow motor to cool before restarting.

Clean and lubricate chain; Adjust chain tension. Allow motor to cool before restarting.

before restarting.

Check seat bearings for freedom of movement; Loosen clamping screw 1/4 turn. Allow motor to cool before restarting.

belt, pulleys, bearings, and sprocket; Check motor for ground fault. Allow motor to cool before restarting.

heads that would give them extra weight. Allow motor to cool before restarting.

(See Sharpener or Toothsetter manual). Allow the motor to cool before restarting.

Troubleshooting Guide 60HDdoc102619 6-6

Troubleshooting Guide

Vcc

OUT1

Vcc2

Vcc3

VBAT

MOTOR 1

MOTOR 2

GND

SM0313

LED Bar Graph

Vkey2

Vkey1

Power Feed Circuit Troubleshooting

6.4 Power Feed Circuit Troubleshooting

LED lights are provided on the control module to help troubleshoot any feed problems you may encounter.

See Figure 6-1. The lights can be viewed by removing the rear control box panel.

If you have trouble determining the problem indicated by the lights, please note which lights are on and call customer service for assistance.

BL, TL, BR, TR - The two red and two green lights indicate different states of sawmill operation. Several different states of the lights in three positions of the power feed drum switch with the feed rate dial switch all the way up are shown below.

6-7 60HDdoc102619 Troubleshooting Guide

FIG. 6-1

Troubleshooting Guide

Power Feed Circuit Troubleshooting

See Table 6-1. The drum switch positions and light states with the feed rate dial switch all the way up are shown below.

Power Feed Drum Switch Position BL TL BR TR

FORWARD On Off Off On

REVERSE Off On On Off

NEUTRAL On Off On Off

TAB LE 6-1

Please contact Customer Service for assistance if necessary when troubleshooting the system using these lights.

S1, S2 - These two red lights indicate the position of the power feed drum switch. Three possible positions are shown in table below. If the lights are not on or off as shown, the power feed drum switch is probably miswired or defective.

See Table 6-2. The light states and drum switch positions are shown below.

Power Feed Drum Switch Position S1 S2

FORWARD On Off

REVERSE Off On

NEUTRAL On On

TABLE 6-2

OUT1 - This red light is on when power is applied to the accessory solenoid. When the OUT1 is off, the accessory solenoid is not powered. Check the jumper cable connecting Vkey1 and Vkey2 Terminals. Reconnect if necessary. If the light is still off the accessory solenoid may be defective.

Vcc - The Vcc light is on when power is applied to the Vkey2 Terminal. If the light is off, check all connections to the key switch. Also check the fuse located between the Vkey2 terminal and the key switch. Check the 225 Amp fuse in the fuse box. Make sure the battery connections are correct.

Vcc2 - This red light indicates that power is applied at the control circuits from the key switch. The light is off when the Vcc light is off. Refer to the Vcc light problems when troubleshooting this light.

Vcc3 - This red light is on indicating the power feed control circuits. The light is off when the Vcc and Vcc2 are off. Refer to the Vcc light to solve potential problems.

Troubleshooting Guide 60HDdoc102619 6-8

Troubleshooting Guide

Key On, Bridge Enabled, No Power, No Faults

Key On, Bridge Enabled, Full Power, No Faults

SM0314-2

Key Power Indicator

Master Bridge Enabled

Past Fault Indicator

Present Fault Indicator

Relay 2 Fault

Relay 1 Fault

H-Bridge Fault

LEM Current Transducer Fault

Power Feed Potentiometer Fault

Forward/Reverse Drum Switch Fault

SM0314-1

Power Meter (Shown at Maximum Voltage)

Power Feed Circuit Troubleshooting

The LED Bar Graph located on the power feed board can also be used to troubleshoot feed problems. Check below for different codes on the LED Bar Graph to find the problem.

See Figure 6-2. The operational codes of the LED Bar Graph are shown below.

See Figure 6-3. The LED Bar Graph problem codes are shown below.

FIG. 6-2

When troubleshooting the system, please note which LED Bar Graph lights are on and contact Customer Service for assistance.

6-9 60HDdoc102619 Troubleshooting Guide

FIG. 6-3

6.5 Hydraulic Problems

PROBLEM CAUSE SOLUTION

Troubleshooting Guide

Hydraulic Problems

You Can Actuate Any Hydraulic Handle, But Get No Response From The Pump.

Carriage not positioned properly to provide power to the pump

Poor ground connection Check ground connection between pump and saw

Blown fuse Replace.

Low or dead battery Test battery amperage capability (such as low

Defective pump motor Remove motor from pump and inspect. Repair or

Poor cable connection Check cable connection and make sure that battery

Defective solenoid (may be indicated by solenoid clicking) See Monarch manual for troubleshooting solenoid

Make sure carriage contact bracket is adjusted far enough forward for battery positive contact to touch 6ft. strip on main tube. Check contact and strip for tarnish or loose wires. Clean as necessary.

frame and between battery negative contact and lower rail. Check contact and rail for tarnish or loose wires. Clean as neccesary.

battery charge, low alternator ouput, defective voltage regulator, bad battery cell, battery age deterioration, etc.). Replace or recharge as necessary.

replace as necessary.

terminals are in good condition (not corroded).

After checking all other possibilities for low voltage to solenoid, check solenoid. Tapping on solenoid may fix temporarily. Replace solenoid if necessary. NOTE: The solenoid is not a standard automotive type. Order from Wood-Mizer only.

Troubleshooting Guide 60HDdoc102619 6-10

Troubleshooting Guide

Hydraulic Problems

PROBLEM CAUSE SOLUTION

You Can Get Response From the Pump By Actuating All But One or Two Handles

Valve assembly switch contacts are not properly adjusted

Locate the valve switch at the bottom of the valve assembly. Use a 3MM allen wrench to loosen the set screw on each of the five switch contacts. Press each contact to the valve block and tighten the contact set screw to secure in place. CAUTION! Do not overtighten!

NOTE: Do not adjust the valve switch or switch spring; they have been preset at the factory.

6-11 60HDdoc102619 Troubleshooting Guide

Troubleshooting Guide

Hydraulic Problems

PROBLEM CAUSE SOLUTION

Pump Motor Runs With Little Or No Response From The Cylinders

Pump Motor Runs Continuously When Power Contact Is Made

Fluid Leaks From Around Cylinder Piston Ram

Fluid Leak Around Pump Box

Low battery Test battery. Recharge or replace as necessary.

Low fluid level Check fluid level. Add an all-season hydraulic fluid

such as Amoco Rycon Oil MV or Mobil Multipurpose ATF (automatic transmission fluid) until level is 4 - 4 1/2" from bottom of reservoir with all cylinders retracted

Pressure relief valve moved from proper setting

Low air temperature causing fluid to thicken

Solenoid is stuck closed Tapping the solenoid may solve this problem tempo-

Worn seals Replace seals in cylinder. Check piston ram for

Loose seal or fitting Wipe pump off completely to locate cause of lead.

Adjust pressure relief valve.

Allow fluid to warm up. Synthetic fluids are available that allow for hydraulic operation in cold weather conditions (Mobil SHC 526).

rarily. Replace solenoid.

abrasive weld that may be causing premature seal failure.

You may have to unbolt the pump to wipe behind it. NOTE: Movement of the sawmill can cause fluid to slosh up into the foam filter in the reservoir cap, and subsequently spray out, giving the appearance that fluid is leaking from the pump.

Troubleshooting Guide 60HDdoc102619 6-12

Troubleshooting Guide

Hydraulic Problems

PROBLEM CAUSE SOLUTION

Hydraulic Side Supports Go Down Before Or At Same Time As Log Turn er

Hydraulic Turner Goes Up Before Or At Same Time As Side Supports

Dirt in sequence valve Remove sequence valves and clean thoroughly with

kerosene. NOTE: Be sure to reassemble the valve and install it in its original position on the cylinder.

Retainer in sequence valve worn

Low air temperature causing fluid to thicken

Spring weakening in sequence valve

Dirt in sequence valve Remove sequence valves and clean thoroughly with

Retainer in sequence valve worn

Low air temperature causing fluid to thicken

Replace sequence valve

Allow fluid to warm up. Synthetic fluids are available that allow for hydraulic operation in cold weather conditions (Mobil SHC 526).

Locate sequence valve at top of turner cylinder. Turn heavy spring in about 1/4 turn.

kerosene. NOTE: Be sure to reassemble the valve and install it in its original position on the cylinder.

Replace sequence valve.

Allow fluid to warm up. Synthetic fluids are available that allow for hydraulic operation in cold weather conditions (Mobil SHC 526).

Springs weakening in sequence valve.

Locate sequence valve at bottom of turner cylinder. Turn heavy spring in about 1/4 turn.

6-13 60HDdoc102619 Troubleshooting Guide

Troubleshooting Guide

Hydraulic Problems

Hydraulic Toe Boards or Clamp "Creep" DOWN without the valve control handles being operated OR do not raise or lower at all.

Can be a result of failing to lower completly the toe board/log clamp before loading the log and hitting the toe board/log clamp by the log being loaded (which can cause damage to the toe board/log clamp and the sawmill bed). ꞏ Damaged hoses; ꞏ Damaged cylinder seals or cylinder; ꞏ Damaged valve.

INITIAL CHECK

To check, disconnect the toe board hydraulic hose from its current valve section and temporarily connect it to another valve section. Check to see if the hydraulics operate properly.

If hydraulics operate properly, hoses and cylinder seals are good. Perform further valve inspection, found below.

If down creep still

possible pinholes causing leakage. Replace if applicable. Retest. If down creep still replace cylinder seals or cylinder and retest.

Be sure to reconnect the hose to the proper valve section when done.

FURTHER VALVE INSPECTION

If further inspection of the valve is required after initial check, remove the check valve shown below. Flush the check valve with an air hose or solvent to remove any dirt from the valve's seat. Reinstall and test again. Check to see if the hydraulics operate properly.

occurs, check all hoses for

occurs,

Bad check valve (results in one of the toe boards experiencing down-creep).

If down creep still

with a new one. Retest. If down creep still replace the hydraulic valve section.

Replace the hydraulic valve section.

occurs, replace the check valve

occurs,

Troubleshooting Guide 60HDdoc102619 6-14

Troubleshooting Guide

Engine/Motor and Drive Pulleys Alignment

6.6 Engine/Motor and Drive Pulleys Alignment

1. Install the drive belt.

2. Use a straight edge to align the engine/motor pulley to the drive pulley. Also check that the engine

pulley is within 1/8" square with the drive pulley. Loosen the engine mounting bolts and rotate the engine if necessary.

3. Check front-to-back movement of the engine does not exceed 1/4". Tighten the motor mount U-bolts if necessary.

4. Engage the clutch handle and adjust the drive belt tension to 7/16" deflection with 10 lb. of force.

5. Recheck the pulley alignment and engine squareness with the clutch handle engaged. Adjust if

necessary.

6. Adjust the drive belt support to 1/4" (±1/32) from the belt while engaged.

6.7 Power Feed Variable Feed Rate Switch Test

With the feed rate dial switch all the way down, move the shaft of the dial back and forth to see if there is a jerky response. Turn the dial and move the shaft back and forth again. Repeat several times. If the jerkiness occurs at the same location on the dial several times, you need to replace the variable speed switch.

6.8 Power Feed Preliminary Test

This test will determine if the problem is a mechanical or electrical.

1. Remove the drive belt from the power feed drive pulley.

2. Turn the key switch to the ACC position. Put the carriage forward/reverse switch into the forward

position and turn the feed rate dial through all speeds. If the power feed motor runs properly at all speeds, the problem is a mechanical one instead of an electrical one.

6.9 Power Feed Mechanical Test

1. Remove the weight from the track rollers. They should turn smoothly and easily with very little play.

2. Make sure the middle track cover is not bent or touching the top rail.

3. Make sure the middle track oiler is free of sawdust buildup.

6-15 60HDdoc102619 Troubleshooting Guide

Troubleshooting Guide

Power Feed Mechanical Test

4. Make sure the power feed chain is not stiff from rust. Also make sure the chain is not too tight. Check the power feed shaft. Visually inspect the bearings. The shaft should move neither in or out nor side to side.

5. Make sure there is no sap or rust on the rails.

Troubleshooting Guide 60HDdoc102619 6-16

Troubleshooting Guide

Place stud on bottom right fuse terminal

3H0417

Extension stud storage location

Fuse Terminal Extension Stud

6.10 Fuse Terminal Extension Stud

A fuse terminal extension stud is provided in the fuse box. The extension may be used to temporarily connect a battery charger or jumper cables to raise the saw head from the towing position so the battery box lid can be removed.

CAUTION! The fuse stud extension is designed to provide enough

power to raise the saw head only. Do not attempt to start the engine or operate any other electrical function until direct battery charging can be performed. Do not attempt to move the saw head by attaching jumper cables from a secondary power source to the up/down motor terminals. Damage to the electrical system will result.

See Figure 6-4.

1. Remove the fuse box cover and remove the stud from its storage position inside the fuse box.

2. Thread the extension stud on the bottom-right fuse terminal.

3. Attach the positive cable from a battery charger or jumper cables to the extension stud.

6-17 60HDdoc102619 Troubleshooting Guide

FIG. 6-4

Wood-mizer LT70L DH, LT70L DH WIDE User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

SECTION 1 SAFETY

1.1 Safety Symbols

1.2 Safety Instructions

1.3 Belt Sizes

1.4 Blade Sizes

SECTION 2 SERVICING THE SAWMILL

2.1 Customer and Sawmill Identification

SECTION 3 SAWMILL SETUP

3.1 Sawmill Setup

3.2 Stationary Sawmill Setup

3.3 Portable Sawmill Setup

3.4 Middle Track Cover

3.5 Replacing The Blade

3.6 Tensioning The Blade

3.7 Tracking The Blade

3.8 Starting The Engine (or Motor)

SECTION 4 SAWMILL OPERATION

4.1 Hydraulic Control Operation

4.2 Loading, Turning And Clamping Logs

4.3 Up/Down Operation

4.4 Blade Guide Arm Operation

4.5 Power Feed Operation

4.6 Cutting The Log

4.7 Edging

4.8 Optional Cutting Procedure

4.9 Blade Height Scale

4.10 Water Lube Operation

4.11 LT70 WIDE Lube System Operation

4.12 Preparing The Sawmill For Towing

SECTION 5 MAINTENANCE

5.1 Wear Life

Up/Down Motor Brushes 1000 hours

Up/Down Motor 2000 hours

Hydraulic Pump Solenoid 750 hours

Power Feed Motor Brushes 750 hours

Up/Down Drum Switch 1000 hours

Hydraulic Pump Motor Brushes 750 hours

Power Feed Drum Switch 1200 hours

Drive Belt 1250 hours

Power Feed Motor 1500 hours

Up/Down Belt 2000 hours

5.2 Blade Guides

5.3 Sawdust Removal

5.4 Carriage Track, Wiper & Scrapers

5.5 Vertical Mast Rails

5.6 Drum Switches

5.7 Miscellaneous

5.8 Brake Adjustment

5.9 Drive Belt Adjustment

5.10 Up/Down System

5.11 Charging The Battery (DC Only)

5.12 Hydraulic System

5.13 Power Feed

MAINTENANCE LOG

DAILY MAINTENANCE PROCEDURES

SECTION 6 TROUBLESHOOTING GUIDE

6.1 Sawing Problems

6.2 Electrical Problems

6.3 Power Feed Problems

6.4 Power Feed Circuit Troubleshooting

6.5 Hydraulic Problems

6.6 Engine/Motor and Drive Pulleys Alignment

6.7 Power Feed Variable Feed Rate Switch Test

6.8 Power Feed Preliminary Test

6.9 Power Feed Mechanical Test

6.10 Fuse Terminal Extension Stud