Woodmizer LT40HD Guida

G38 Engine

Safety, Operation, Maintenance

& Parts Manual

LT40HD rev. K5.00 - K7.01

LT40HD Super rev. J9.01 - K4.00

LT50HD rev. A1.01 - A6.00

Safety is our #1 concern! Read and understand

all safety information and instructions before oper-

ating, setting up or maintaining this machine.

May 2017

Form #2242

reproduced in any form by any photographic, electronic, mechanical or other means or used in

any information storage and retrieval system without written permission from

Wood-Mizer

8180 West 10th Street

Indianapolis, Indiana 46214

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Table of Contents Section-Page

Table of Contents WMdoc091819 iii

TOC

SECTION 1 ABOUT THIS MANUAL 1-1

SECTION 2 OPERATION 2-1

2.1 Starting The Engine................................................................................2-1

SECTION 3 MAINTENANCE 3-1

3.1 Safety......................................................................................................3-1

3.2 Cooling System ......................................................................................3-2

3.3 Air Cleaner .............................................................................................3-2

3.4 Fuel Filter ...............................................................................................3-2

3.5 Battery ....................................................................................................3-2

3.6 Alternator Belt........................................................................................3-3

3.7 RPM Adjustments ..................................................................................3-4

3.8 Miscellaneous Maintenance ...................................................................3-4

SECTION 4 REPLACEMENT PARTS 4-1

4.1 Fuel Tank (G28/G29/G38) .....................................................................4-1

LT40 Rev. K4.08+

LT40 Super Rev. J7.17+

LT40HD Rev. K6.09+

LT40HD Super Rev. K3.17+

LT50 Rev. A5.17+

4.2 Fuel Tank (G28/G29/G38) .....................................................................4-3

LT40 Rev. K4.06 - K4.07

LT40 Super Rev. J7.16

LT40HD Rev. K6.07 - K6.08

LT40HD Super Rev. K3.15 - K3.16

LT50 Rev. A5.15 - A5.16

4.3 Fuel Tank (G26/G29/G38) (2010+) .......................................................4-4

LT40 Prior to Rev. K4.06

LT40 Super Prior to Rev. J7.16

LT40HD Prior to Rev. K6.07

LT40HD Super Prior to Rev. K3.15

LT50 Prior to Rev. A5.15

4.4 Fuel Tank (G26/G29/G38) (Pre-2010)..................................................4-5

LT40 Prior to Rev. K4.06

LT40 Super Prior to Rev. J7.16

LT40HD Prior to Rev. K6.07

LT40HD Super Prior to Rev. K3.15

LT50 Prior to Rev. A5.15

4.5 Engine Mount Assembly (G28/G29/G38)..............................................4-6

4.6 Engine Assembly....................................................................................4-7

4.7 Alternator Assembly...............................................................................4-9

4.8 Engine Pulley Guards (G38) ................................................................4-11

Table of Contents Section-Page

iv WMdoc091819 Table of Contents

INDEX I

About This Manual

About This Manual WM doc 9/18/19 1-1

SECTION 1 ABOUT THIS MANUAL

This manual is provided as a supplement to the equipment manufacturer’s manuals. This

manual provides information specific to the use of this equipment on the Wood-Mizer®

sawmill. Refer to the sawmill operator’s manual and manufacturer's manual before

attempting to operate this equipment.

IMPORTANT! Read the sawmill operator’s manual and engine manu-

facturer’s manual for instructions and safety precautions before oper-

ating this equipment.

The information and instructions given in this manual do not amend or extend the limited

warranties for the equipment given at the time of purchase.

G38 EFI Engine

Air Cleaner

Muffler

Oil Filter

Alternator

Starter

3H1178

Fuel Pump

Operation

Starting The Engine

2-1 WM doc 9/18/19 Operation

SECTION 2 OPERATION

2.1 Starting The Engine

Engine Control Lights

See Figure 2-1. The following indicator lights are located on the sawmill control panel.

Alternator Charge Indicator: Lights up if the alternator is not charging the battery.

Engine Temperature Indicator: Not used.

Key Switch Indicator: Lights up when the key is in either the on or accessory (#1 or #3)

position.

Oil Indicator: Lights up if the oil pressure is too low. The engine will automatically switch to

low idle if a low oil condition occurs.

Glow Plug Indicator: Not used.

Engine Start

DANGER! Always be sure the blade is disengaged and all persons are

out of the path of the blade before starting the . Failure to do so will

result in serious injury.

FIG. 2-1

Operation

Starting The Engine

Operation WM doc 9/18/19 2-2

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

before turning the key switch to the on (#1) or accessory (#3) position.

This prevents accidental carriage movement. which may cause serious

injury or death.

WARNING! 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.

WARNING! EPA Compliant Gas Tanks Only: Always relieve all fuel

pressure inside the tank prior to filling or connecting fuel fittings. Fail-

ure to do so may result in fuel spillage.

WARNING! EPA Compliant Gas Tanks Only: Disconnect the fuel tank

when not in use or during transportation. Failure to do so may result in

engine flooding or fuel spillage.

NOTE: When the clutch handle is engaged, an accelerator pump is activated which sup-

plies fuel to the engine carburetor. To avoid flooding the carburetor and possibly fouling

the spark plugs, do not engage the clutch lever repeatedly without the engine running.

Engine Shutoff

Turn the key switch to the off (#0) position.

Maintenance

Safety

3-1 WM doc 9/18/19 Maintenance

SECTION 3 MAINTENANCE

Refer to the manufacturer’s manual for maintenance intervals and procedures unless oth-

erwise instructed in this manual. Follow the manufacturer’s recommendations for dusty

conditions.

IMPORTANT! This manual only provides information about additional

procedures or procedures to be performed at different time intervals

than found in the manufacturer's manuals. Refer to the manufacturer's

manual for complete maintenance instructions.

WARNING! Clean sawdust from all guards, vents, control

boxes, or any area where sawdust may gather after every

shift. Failure to do so may result in fire, causing death or

serious injury.

3.1 Safety

Use caution when performing maintenance or service to the engine.

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.

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. Con-

tact 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.

WARNING! Remove the blade before performing any engine service.

Failure to do so may result in serious injury.

WARNING! Always wear proper and necessary safety equipment

when performing service functions. Proper safety equipment includes

eye protection, breathing protection, hand protection and foot protec-

tion.

This symbol identifies the interval (hours of operation) at which each maintenance pro-

cedure should be performed. "AR" signifies maintenance procedures which should be

performed as required.

Maintenance

Cooling System

Maintenance WM doc 9/18/19 3-2

3.2 Cooling System

Wash the engine or brush off sawdust and debris every 50 hours of operation. Clean the

grass screen, cooling fins, and external surfaces. Remove any dust, dirt or oil. See

engine manual for further instructions.

3.3 Air Cleaner

WARNING! Always wear proper and necessary safety equipment

when performing service functions. Proper safety equipment includes

eye protection, breathing protection, hand protection and foot protec-

tion.

Replace the outer air cleaner cartridge and check the inner cartridge every 250 hours of

operation or more often if operating the sawmill in dirty conditions or if engine perfor-

mance indicates a new cartridge is necessary.

CAUTION! Do not clean elements with water or compressed air. Do

not handle the inner element unless it is to be changed. Handle new

elements carefully. Contact with the element could cause damage and

prevent the filter from operating properly.

Replace the inner air cleaner cartridge every 1200 hours of operation or more often if

operating the sawmill in dirty conditions.

3.4 Fuel Filter

Replace the fuel filter every 100 hours of operation or as required for engine perfor-

mance.

3.5 Battery

Check the battery electrolyte level every 50 hours of operation. See manufacturer’s man-

ual for instructions.

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.

250

1200

100

Maintenance

Alternator Belt

3-3 WM doc 9/18/19 Maintenance

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.

3.6 Alternator Belt

The belt tension should be checked after the first 100 hours of operation, when the bat-

tery is not charging properly or when the alternator belt is squealing.

If the battery continues to not charge properly or the belt continues to squeal after the ini-

tial belt adjustment, replace the belt.

1. Release the blade tension and remove the blade from the sawmill if necessary. Turn the

key switch to OFF (0) and remove the key.

2. Remove the drive belt cover and alternator cover.

See Figure 3-1.

3. Use a belt tension gauge to measure the belt tension. Place the gauge on the belt at the

midpoint between the two pulleys. If the belt has more than 3/16” at 9 lb. of deflection,

tighten the belt as described below.

4. Loosen the upper pivot, lower pivot and the adjustment bolt jam nut.

5. Turn the belt tension adjustment bolt clockwise to tighten the belt, counterclockwise to

loosen the belt. Adjust the bolt until the proper belt tension is achieved.

CAUTION! Do not overtighten the alternator belt. Damage to the alter-

nator will occur.

FIG. 3-1

100

Belt Adjustment

Bolt

Jam Nut Upper Pivot

Lower

Pivot

3H0748-11

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