woodmizer LT40 MH Series Guide

D42 Engine
Safety, Operation, Maintenance
& Parts Manual
LT40 Series MH rev. E3.00
LT40 Series DH rev. E4.00
Safety is our #1 concern! Read and understand
all safety information and instructions before oper-
ating, setting up or maintaining this machine.
February 1998
Form #916
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ii D42doc110909 Table of Contents
Table of Contents Section-Page
SECTION 1 OPERATION 1-1
1.1 Starting The Engine................................................................................1-1
SECTION 2 MAINTENANCE 2-1
2.1 Safety......................................................................................................2-1
2.2 Cooling System ......................................................................................2-2
2.3 Fuel Filter ...............................................................................................2-4
2.4 Battery ....................................................................................................2-5
2.5 Alternator Belt ........................................................................................2-6
2.6 Radiator Fan Belt Adjustment................................................................2-7
2.7 RPM Adjustments ..................................................................................2-8
SECTION 3 REPLACEMENT PARTS 3-1
3.1 Fuel Tank................................................................................................3-1
3.2 Engine Mount Assembly ........................................................................3-2
3.3 Engine Assembly....................................................................................3-4
3.4 Primary Fuel Filter .................................................................................3-6
3.5 Throttle Assembly ..................................................................................3-7
3.6 Muffler Assembly...................................................................................3-9
3.7 Drive Assembly ....................................................................................3-10
3.8 Radiator Assembly & D33 Engine Guards ..........................................3-11
3.9 Alternator Assembly.............................................................................3-13
3.10 Engine Pulley Guards ...........................................................................3-15
SECTION 4 ELECTRICAL WIRING DIAGRAMS, D42 4-1

About This Manual doc062309 iii
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 manufacturer’s manual for instructions and safety
precautions before operating 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.
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Operation
Starting The Engine
1
1-1 doc062309 Operation
SECTION 1 OPERATION
1.1 Starting The Engine
Control Lights
See Figure 1-1. 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: Lights up if the engine is overheating. A circuit breaker
assembly in the engine harness will shut the engine off if the engine overheats. Turn the
key switch off and allow the engine to cool for a period of time before restarting. If the
overheating condition persists, stop operating the engine until the condition is corrected.
The engine will automatically switch to low idle if an overheating condition occurs.
Oil Indicator: Lights up if the oil pressure is too low.
Glow Plug Indicator: Lights up after the key has been turned to the on (#1) position.
FIG. 1-1
SW-08 Setworks
Real Size (mm)
Error calibration
Start autoprogram
AUTO
CAL.
SIZE
A
,B,C
Position Size (mm)
NEXT CUT
ABC
Delete PROG.
Exit PROG.
PATTERN DOWN
Save PROG.
SAVE
PATTERN UP
BUMP UP
PROGRAM

Operation
Starting The Engine
Operation doc062309 1-2
1
Engine Start
DANGER! Always be sure the blade is disengaged and all
persons are out of the path of the blade before starting the
engine. Failure to do so will result in serious injury.
DANGER! Operate your engine/machine only in well venti-
lated 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.
CAUTION! Do not crank starter for more than 7 seconds at
one time during starting attempts. Damage to the engine
may result.
CAUTION! Let cool engine idle for 2 minutes before apply-
ing load to prevent engine damage.
1. See the engine manufacturer’s manual for lubricating oil recommendations for specific
temperature ranges.
2. Use a best quality diesel fuel for below freezing starting.
3. Turn the key switch on the control panel to the on (#1) position.
4. Wait until the glow plug indicator goes out.
5. Turn the key switch to the start (#2) position and release.

Operation
Starting The Engine
1
1-3 doc062309 Operation
Engine Shutoff
CAUTION! A minimum 2 minute idle time is recommended
to allow the battery charge and the turbo-charger to cool
down before the engine is shut off.
Turn the key switch to the off (#0) position.

Maintenance
Safety
Maintenance doc110909 2-1
2
SECTION 2 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 dif-
ferent time intervals than found in the manufacturer's manu-
als. Refer to the manufacturer's manual for complete
maintenance instructions.
2.1 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 dur-
ing and following operation. Contact with hot engine com-
ponents 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 protec-
tion, hand protection and foot protection.
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.
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0

Maintenance
Cooling System
2
2-2 doc110909 Maintenance
2.2 Cooling System
Clean the radiator fins every 8 hours of operation. Spray the radiator with water from a
hose or compressed air to clean sawdust from the radiator fins. Do not use a pressure
sprayer.
CAUTION! Failure to keep the radiator fins clear of sawdust
and/or dirt may cause the engine to overheat resulting in
damage to the engine.
CAUTION! Do not spray the radiator with water when the
engine is hot.
CAUTION! Do not open the radiator cap or reservoir cap
when the engine is hot.
Every 8 hours of operation check the coolant level on the coolant reservoir. When engine
is cold the coolant level should be above the LOW level.
For the aluminium radiator use only glycol solution (1l. of glycol concentrate for 1l. of dis-
8
8

Maintenance
Cooling System
Maintenance doc110909 2-3
2
tilled water).
FIG. 2-0
3h0963

Maintenance
Fuel Filter
2
2-4 doc110909 Maintenance
2.3 Fuel Filter
See Figure 2-1. Replace the primary fuel filter cartridge every 1500 hours or one year of
operation. After replacing the filter cartridge, loosen the air bleed screw and operate the
fuel pump bail until fuel begins to flow from the valve and is free of air bubbles. Tighten
the bleed screw. Inspect the water separator bowl periodically and drain the bowl as
required by turning the drain cap counterclockwise as viewed from the bottom.
FIG. 2-1
1500
Filter Cartridge
Water Drain
Bleed Screw
3H0463