woodmizer G15 Guide
G15
Safety, Operation, Maintenance
& Parts Manual
LT25/LT27 rev. D8.01 - E3.05
Safety is our #1 concern! Read and understand
all safety information and instructions before oper-
ating, setting up or maintaining this machine.
January 2004 Form #984
ii G15E97doc013105 Table of Contents
Table of Contents Section-Page
ABOUT THIS MANUAL III
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 Air Filter & Pre-Cleaner.........................................................................2-3
2.4 Fuel Filter ...............................................................................................2-4
2.5 Battery ....................................................................................................2-5
2.6 RPM Adjustments ..................................................................................2-6
2.7 Miscellaneous Maintenance ...................................................................2-8
SECTION 3 REPLACEMENT PARTS 3-1
3.1 Engine Assembly....................................................................................3-1
3.2 Engine Mount Assembly........................................................................3-3
3.3 Engine Pulley Guards.............................................................................3-4
About This Manual G15E97doc013105 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.
ENGINE COMPONENTS
A
ir Filter
Mu
ff
ler
Serial Number/
Engine Type
150077-1
Fuel Tank
Key Switch
Operation
Starting The Engine
1
1-1 G15E97doc013105 Operation
SECTION 1 OPERATION
1.1 Starting The Engine
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! 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.
1. Close the engine choke by moving the choke lever to the start position.
2. Turn the key switch to the START position and release. Release the key switch to the
RUN position after the engine starts.
3. When the engine starts, slowly open the choke all the way by moving the choke lever to
the off position.
Engine Shutoff
1. Disengage the clutch handle to stop the blade if necessary.
2. Let the engine run for 15 seconds with no load, then turn the key switch to the OFF posi-
tion.
Maintenance
Safety
Maintenance G15E97doc013105 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.
0
Maintenance
Cooling System
2
2-2 G15E97doc013105 Maintenance
2.2 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.
50
Maintenance
Air Filter & Pre-Cleaner
Maintenance G15E97doc013105 2-3
2
2.3 Air Filter & Pre-Cleaner
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.
Service the pre-cleaner every four hours of operation. Service by gently shaking excess
sawdust and debris from the foam piece.
Clean the air filter (air cleaner element) and pre-cleaner (element wrapper) every eight
hours of operation. See the engine manual for further instructions.
Replace the air filter (cleaner) every 200 hours of operation.
Replace the pre-cleaner (element wrapper) every 2000 hours of operation.
4
8
200
2000
Maintenance
Fuel Filter
2
2-4 G15E97doc013105 Maintenance
2.4 Fuel Filter
Replace the fuel filter every 100 hours of operation or as required for engine perfor-
mance.
100
Maintenance
Battery
Maintenance G15E97doc013105 2-5
2
2.5 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.1
WARNING! Battery posts, terminals and related accesso-
ries contain lead and lead compounds, chemicals known to
the State of California to cause cancer and reproductive
harm. Wash hands after handling.
1. Battery Council International, copyright 1987
50
Maintenance
RPM Adjustments
2
2-6 G15E97doc013105 Maintenance
2.6 RPM Adjustments
WARNING! Remove the blade before performing any
engine service. Failure to do so may result in serious injury.
Check the RPM with a tachometer after the first 20 hours of operation and every 200
hours thereafter.
See Table 2-1.
Before checking the RPM, make sure belt and brake strap tensions are correct (See Saw-
mill Maintenance). Also check oil, fuel, and coolant levels.
Make sure the throttle cable does not affect the engine RPM when the clutch handle is
disengaged. Make sure the cable is not bent or kinked.
1. Start the engine to measure the low-end RPM.
2. Refer to the engine manual to adjust the low-end RPM.
3. Engage the clutch handle to throttle the engine and measure the high-end RPM. The
high-end RPM is factory-set at 3750. Readjust the throttle cable if necessary to increase
or reduce the high-end engine speed.
The engine should start to throttle as soon as you start moving the clutch handle down. If
the engine dies instead, restart the engine and adjust the throttle linkage as far as possi-
ble without affecting low-end RPM. With the engine idling and the clutch disengaged,
loosen the cable bolt and pull the throttle cable up to a point just below where it affects the
low-end RPM. Retighten the cable bolt. NOTE: A properly adjusted throttle will extend the
cable spring 1/4" to 3/8" (6.4 - 9.5 mm) when running and have a slight amount of slack in
the cable when idling.
See Figure 2-1.
Engine High End RPM Low End RPM
TABLE 2-1
200
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