Briggs & Stratton is a registered trademark
of Briggs & Stratton Corporation
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E 2009 Briggs & Stratton Corporation,
Milwaukee, WI, USA. All rights reserved.
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Revision: C
01999-B8004
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Not for Reproduction
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BRIGGSandSTRATTON.COM
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Not for Reproduction
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General Information
Not for Reproduction
For replacement parts or technical assistance, record below the engine model, type, and
code numbers along with the date of purchase. These numbers are located on your
engine (see the Features and Controls page).
Date of purchase:
MM/DD/YYYY
Engine model:
Model:Code:Type:
Engine Power Rating Information
For 3/LC engines, gross power ratings are based on SAE J1995 criteria and net power
ratings are based on SAE J1349 criteria. Actual power output of production engines
installed in applications may vary depending on a number of factors, including the engine
RPM limit of the application, environmental conditions, engine/equipment maintenance,
and other variables.
WARNING
Briggs & Stratton does not approve or authorize the use of these engines
on 3-wheel All Terrain Vehicles (ATVs), motor bikes, fun/recreational
go-karts, aircraft products, or vehicles intended for use in competitive
events. Use of these engines in such applications could result in property
damage, serious injury (including paralysis), or even death.
NOTICE: This engine was shipped from Briggs & Stratton without oil. Before you start
the engine, make sure you add oil according to the instructions in this manual. If you
start the engine without oil, it will be damaged beyond repair and will not be covered
under warranty.
WARNING
Fuel and its vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.
Operator Safety
SAFETY AND CONTROL SYMBOLS
Fire
Fast
On Off
Read Manual
The safety alert symbolis used to identify safety information about hazards that can
result in personal injury. A signal word (DANGER, WARNING, or CAUTION) is used with the
alert symbol to indicate the likelihood and the potential severity of injury. In addition, a hazard
symbol may be used to represent the type of hazard.
Moving Parts
Stop
Fuel Shutoff
Hot Surface
Oil
Explosion
Kickback
Frostbite
DANGER indicates a hazard which, if not avoided, will result in death or
serious injury.
Toxic Fumes
Shock
Wear Eye
Protection
Hot Liquid or Steam
Slow
Fuel
Hazardous
Chemical
When Adding Fuel
• Turn engine off and let engine cool at least 2 minutes before removing the fuel
cap.
• Fill fuel tank outdoors or in well-ventilated area.
• Do not overfill fuel tank. To allow for expansion of the fuel, do not fill above the
bottom of the fuel tank neck.
• Keep fuel away from sparks, open flames, pilot lights, heat, and other ignition
sources.
• Check f uel lines, tank, cap, and fittings frequently for cracks or leaks.
Replace if necessary
• If fuel spills, wait until it evaporates before starting engine.
When Starting Engine
• Ensure that muffler, fuel cap, and air cleaner are in place and secured.
When Operating Equipment
• Do not tip engine or equipment at angle which causes fuel to spill.
• Never start or run the engine with the air cleaner assembly (if equipped) or the
air filter (if equipped) removed.
When Transporting Equipment
• Transport with fuel tank EMPTY or with fuel shut-off valve OFF.
When Storing Fuel Or Equipment With Fuel In Tank
• Store away from furnaces, stoves, water heaters or other appliances that have
pilot lights or other ignition sources because they can ignite fuel vapors.
WARNING
Starting engine creates sparking.
Sparking can ignite nearby flammable gases.
Explosion and fire could result.
• If there is natural or LP gas leakage in area, do not start engine.
• Do not use pressurized starting fluids because vapors are flammable.
WARNING indicates a hazard which, if not avoided, could result in death or
serious injury.
CAUTION indicates a hazard which, if not avoided, might result in minor or
moderate injury.
NOTICE indicates a situation that could result in damage to the product.
WARNING
Certain components in this product and its related accessories contain
chemicals known to the State of California to cause cancer, birth defects, or
other reproductive harm. Wash hands after handling.
WARNING
The engine exhaust from this product contains chemicals known to the
State of California to cause cancer, birth defects, or other reproductive
harm.
4BRIGGSandSTRATTON.COM
WARNING
Engines give off carbon monoxide, an odorless, colorless, poison gas.
Breathing carbon monoxide can cause nausea, fainting or death.
• Start and run engine outdoors.
• Do not start or run engine in enclosed area, even if doors or windows are open.
WARNING
Rotating parts can contact or entangle hands, feet, hair, clothing, or
accessories.
Traumatic amputation or severe laceration can result.
• Operate equipment with guards in place.
• Keep hands and feet away from rotating parts.
• Tie up long hair and remove jewelry.
• Do not wear loose-fitting clothing, dangling drawstrings or items that could
become caught.
WARNING
Not for Reproduction
Running engines produce heat. Engine parts, especially muffler,
become extremely hot.
Severe thermal burns can occur on contact.
Combustible debris, such as leaves, grass, brush, etc. can catch fire.
• Allow muffler, engine cylinder and fins to cool before touching.
• Remove accumulated debris from muffler area and cylinder area.
• It is a violation of California Public Resource Code, Section 4442, to use or
operate the engine on any forest-covered, brush-covered, or grass-covered land
unless the exhaust system is equipped with a spark arrester, as defined in
Section 4442, maintained in effective working order. Other states or federal
jurisdictions may have similar laws. Contact the original equipment
manufacturer, retailer, or dealer to obtain a spark arrester designed for the
exhaust system installed on this engine.
WARNING
Severe thermal burns can occur by escaping steam or hot coolant.
• DO NOT remove radiator cap or reservoir cap if engine is warm or running.
• Stop engine and allow it to cool before removing radiator cap or reservoir cap
and before changing or adding coolant.
WARNING
Unintentional start-up can result in entanglement, traumatic
amputation, or laceration.
Fire hazard
Before performing adjustments or repairs:
• Disconnect battery at negative terminal (only engines with electric start.)
• Use only correct tools.
• Do not tamper with governor spring, links or other parts to increase engine
speed.
• Replacement parts must be the same and installed in the same position as the
original parts.
• Do not strike the flywheel with a hammer or hard object because the flywheel
may later shatter during operation.
en
5
Features and Controls
Not for Reproduction
Compare the illustration
various features and controls.
A. Engine Identification
Model Type Code
B. Engine Identification
Date Code
C. Glow Plug
D. Dipstick
E. Oil Fill
F. Oil Filter
G. Oil Drain Plug
H. Injector Nozzle
I. Electric Starter
J. Injector Pump
K. Thermostat
L. Turbocharger
M. Oil Pan
N. Alternator
O. Coolant Temperature Sending Unit
P. Fan
Q. Fan Belt
R. Exhaust Manifold
1
with your engine to familiarize yourself with the location of
Operation
Oil capacity (see the Specifications section)
8. Install the dipstick.
Oil Pressure
If the oil pressure is too low, a pressure switch (if equipped) will either stop the engine or
activate a warning device on the equipment. If this occurs, stop the engine and check the
oil level with the dipstick.
If the oil level is below the ADD mark, add oil until it reaches the FULL mark. Start the
engine and check for proper pressure before continuing to operate.
If the oil level is between the ADD and FULL marks, do not start the engine. Contact
any Briggs & Stratton 3/LC Authorized Dealer to have the oil pressure problem
corrected.
Fuel Recommendations
Fuel must meet these requirements:
• This engine is certified to operate on diesel fuel. If incorrect fuel is used, black
smoke, power loss, and damage to the engine will occur, which will not be
covered by the warranty.
• Use clean, fresh diesel fuel with a minimum of 40 cetane. Fresh fuel prevents gum
from forming in the fuel system. Purchase fuel in a quantity that can be used within
30 days. See the Storage section.
CAUTION: Do not use kerosene or gasoline instead of diesel fuel. Failure to observe this
caution will damage the engine and void the engine warranty.
How To Add Fuel - Figure
5
WARNING
Fuel and its vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.
Oil Recommendations
We recommend the use of Briggs & Stratton Warranty Certified oils for best
performance. Other high-quality detergent oils are acceptable if classified for service CF
or CF-4. Do not use special additives.
Outdoor temperatures determine the proper oil viscosity for the engine. Use the chart to
select the best viscosity for the outdoor temperature range expected.
°F°C
SAE 30
10W-30
When Adding Fuel
• Turn engine off and let engine cool at least 2 minutes before removing the fuel
cap.
• Fill fuel tank outdoors or in well-ventilated area.
• Do not overfill fuel tank. To allow for expansion of the fuel, do not fill above the
bottom of the fuel tank neck.
• Keep fuel away from sparks, open flames, pilot lights, heat, and other ignition
sources.
• Check f uel lines, tank, cap, and fittings frequently for cracks or leaks.
Replace if necessary
• If fuel spills, wait until it evaporates before starting engine.
1. Clean the fuel cap area of dirt and debris. Remove the fuel cap (A, Figure 5).
2. Fill the fuel tank (B) with fuel. To allow for expansion of the fuel, do not fill above the
bottom of the fuel tank neck (C).
3. Reinstall the fuel cap.
Coolant Recommendations
Synthetic 5W-30
* Below 40°F(4°C) the use of SAE 30 will result in hard starting.
** Above 80°F(27°C) the use of 10W-30 may cause increased oil consumption. Check
oil level more frequently.
How To Check/Add Oil - Figure
Before adding or checking the oil
• Place engine level.
• Clean the oil fill area of any debris.
1. Remove the dipstick (A) and wipe with a clean cloth (Figure 2).
2. Completely insert the dipstick.
3. Remove the dipstick and check the oil level. It should be at the FULL mark (B)onthe
dipstick.
4. If the oil is low, remove the oil fill cap (J).
5. Remove the dipstick. Pour the oil slowly into the engine oil fill (C). Do not overfill.Important: When adding oil, adequate venting is required as follows:
• Remove the dipstick.
• Make sure adequate clearance (D) is maintained between the oil fill device (E)
and the engine oil fill (C).SeeFigure4.
6. Install and tighten the oil fill cap.
NOTICE: Before starting the engine, wipe the engine clean of any spilled oil.
7. After adding oil, install the dipstick. Start and run engine at idle for five minutes. Shut
off engine. Wait three minutes and check oil level. If required, add oil to bring oil level
to the FULL mark (B) on the dipstick (Figure 2).
6BRIGGSandSTRATTON.COM
24
5W-30
Coolant capacity (see the equipment manufacture’s manual)
Important: This is a liquid-cooled engine. A 50 /50% mixture of phosphate-free
antifreeze and tap water is required for cooling, rust resistance, and lubrication of the
water pump.
How To Check/Add Coolant
WARNING
Severe thermal burns can occur by escaping steam or hot coolant.
• DO NOT remove radiator cap or reservoir cap if engine is warm or running.
• Stop engine and allow it to cool before removing radiator cap or reservoir cap
and before changing or adding coolant.
1. Before operating, check the coolant level. The coolant level must be between the
FULL and the LOW/ADD marks on the coolant reservoir. If the coolant level is low,
add a 50/50% coolant mixture of phosphate-free antifreeze and tap water to the
reservoir.
2. To remove the reservoir cap after engine is cool, place a thick cloth over the reservoir
cap. Slowly turn the reservoir cap counterclockwise to remove.
3. If the reservoir is dry, then add coolant to both the reservoir and to the radiator. See
the equipment manual for location, operation, and maintenance of the coolant
reservoir and the radiator.
4. To remove the radiator cap after engine is cool, place a thick cloth over the radiator
cap. Slowly turn the radiator cap counterclockwise to the first stop. If pressurized
steam escapes from the cap, stand back to avoid injury. After all pressure is
released, push down and turn the radiator cap counterclockwise to remove.
Gauges And Lights
Not for Reproduction
The gauges and lights shown are typical and represent various options that can be used.
See the equipment manual for location and operation of gauges and lights.
Coolant Temperature Gauge
Indicates coolant temperature when the electric start switch is in
the ON position.
Normal range 80º -- 90 º C (175º -- 195º F)
Dangerous range above 105º C (220 º F)
Hour Meter Gauge
Indicates the total number of operating hours.
Fuel Gauge
Indicates the fuel remaining in the fuel tank. To minimize condensation,
keep the fuel tank full.
Temperature Light
If the temperature light comes on, the engine is overheating. Stop the
engine and check the coolant level (see the How To Check Coolant
section). Check the radiator for debris that could restrict air flow.
Ignition Light
When the electric start switch is turned to the ON position, the ignition light
If the ignition light is out when then electric startswitchintheONposition, check for a
blown fuse.
should be on. When the engine is running, the ignition light should go out.
NOTICE: Before starting the engine for the first time, charge the battery as
recommended by the equipment manufacturer. Failure to do so can cause damage to the
engine.
Note: Some engines and equipment have remote controls. See the equipment manual
for location and operation of remote controls.
1. Check the oil level. See the How To Check/Add Oil section.
2. Make sure equipment drive controls, if equipped, are disengaged.
3. Turn the fuel shut-off valve (A), if equipped, to the on position (Figure 6).
4. Move the throttle control (B) to the slow
Note: For starting in cold weather (below -10º Cor14º F), move the throttle control to
the fast
5. Turn the electric start key (C) to the ON or HEAT position (Figure 6). The glow light
will indicate that the glow plugs are preheating the combustion chamber.
6. When the glow light goes out, turn the electric start key to the START position.
NOTICE: To prolong starter life, use short starting cycles, not to exceed 15 seconds
per minute. Extended cranking can damage the starter motor.
7. When the engine starts, release the key. The glow light will illuminate for about 20
seconds and then go out.
NOTICE: Do not accelerate or race a cold engine. Failure to observe this caution
can cause engine damage.
8. Allow the engine to run and warm up for several minutes before operating the
equipment.
position.
position.
Engine Oil Pressure Light
When the electric start switch is turned to the ON position, the engine oil
pressure light should go out. If the engine oil pressure light comes on when the engine
is running, immediately stop the engine. First, check the oil level (see the How ToCheck/Add Oil section). Next, check the electrical system.
If the charge light comes on when the engine is running, check the electrical system.
combustion chamber.
fuel filter. If the fuel filter warning light illuminates while engine is running, stop the engine
and drain the water from the fuel filter.
How To Start The Engine - Figure
pressure light should be on. When the engine is running, the engine oil
Charge Light
When the electric start switch is turned to the ON position, the charge light
should be on. When the engine is running, the charge light should go out.
Heat or Glow Light
When the ignition switch is turned to the heat/glow or the on position, the
glow light will indicate to indicate that the glow plugs are preheating the
Fuel Filter Light
The fuel filter light comes on when excess water has collected in the fuel
X
filter. The light should go out when the excess water is drained from the
6
WARNING
Fuel and its vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.
When Starting Engine
• Ensure that muffler, fuel cap, and air cleaner are in place and secured.
• To prolong starter life, use short starting cycles, not to exceed 15 seconds per
minute. Extended cranking can damage the starter motor.
How To Stop The Engine - Figure
1. Move the throttle control (B) to the slowposition.
NOTICE: Before stopping a turbo-equipped engine, allow the engine to idle for one
minute to cool the turbocharger. Failure to do so can damage the turbocharger.
2. Turn the key switch (C) to the off position (Figure 6). Remove the key and keep in a
safe place out of the reach of children.
3. After the engine stops, turn the fuel shut-off valve (A), if equipped, to the closed
position.
6
Maintenance
Use only original equipment replacement parts. Other parts may not perform as
well, may damage the unit, and may result in injury. In addition, use of other parts
may void your warranty.
We recommend that you see any Briggs & Stratton 3/LC Authorized Dealer for all
maintenance and service of the engine and engine parts.
NOTICE: All the components used to build this engine must remain in place for proper
operation.
NOTICE: The manufacturer of the equipment on which this engine is installed specifies
the top speed at which the engine will be operated. Do not exceed this speed.
Emissions Control
Maintenance, replacement, or repair of the emissions control devices and systems
may be performed by any non-road engine repair establishment or individual.
However, to obtain “no charge” emissions control service, the work must be performed
by a factory authorized dealer. See the Emissions Warranty.
WARNING
Unintentional start-up can result in entanglement, traumatic
amputation, or laceration.
Fire hazard
WARNING
Engines give off carbon monoxide, an odorless, colorless, poison gas.
Breathing carbon monoxide can cause nausea, fainting or death.
• Start and run engine outdoors.
• Do not start or run engine in enclosed area, even if doors or windows are open.
NOTICE: This engine was shipped from Briggs & Stratton without oil. Before you start
the engine, make sure you add oil according to the instructions in this manual. If you
start the engine without oil, it will be damaged beyond repair and will not be covered
under warranty.
en
Before performing adjustments or repairs:
• Disconnect battery at negative terminal (only engines with electric start.)
• Use only correct tools.
• Do not tamper with governor spring, links or other parts to increase engine
speed.
• Replacement parts must be the same and installed in the same position as the
original parts.
• Do not strike the flywheel with a hammer or hard object because the flywheel
may later shatter during operation.
7
Maintenance Chart
Not for Reproduction
Every8HoursorDaily
• Check engine oil level
• Check coolant level
First 50 Hours (initial Break-In)
• Change engine oil *
Every 100 Hours
• Check fan belt tension
• Clean radiator
• Clean air filter
• Check muffler and clean spark arrestor (if equipped)
Every 150 Hours
• Change engine oil *
• Replace oil filter
Every 600 Hours or Annually
• Replace air filter
• Check valve clearance H
• Replace fuel filter
Every 1500 Hours
• Check injection nozzles z
Annually
• Change engine oil *
• Replace oil filter
• Change coolant
• Check fan belt tension
• Clean radiator
• Check muffler and clean spark arrestor (if equipped)
• Replace air filter
• Replace fuel filter
• Check valve clearance H
* Service more often when operating under heavy load or in high temperature.
Y
Follow the manufacturer’s maintenance schedule if non-Briggs & Stratton part is
used.
z Service must be performed by an authorized DENSO dealer.
H Not required unless engine performance problems are noted.
Y
Y
Inspect Muffler And Spark Arrester
WARNING
Running engines produce heat. Engine parts, especially muffler,
become extremely hot.
Severe thermal burns can occur on contact.
Combustible debris, such as leaves, grass, brush, etc. can catch fire.
• Allow muffler, engine cylinder and fins to cool before touching.
• Remove accumulated debris from muffler area and cylinder area.
• It is a violation of California Public Resource Code, Section 4442, to use or
operate the engine on any forest-covered, brush-covered, or grass-covered land
unless the exhaust system is equipped with a spark arrester, as defined in
Section 4442, maintained in effective working order. Other states or federal
jurisdictions may have similar laws. Contact the original equipment
manufacturer, retailer, or dealer to obtain a spark arrester designed for the
exhaust system installed on this engine.
Inspect the muffler for cracks, corrosion, or other damage. Remove the spark arrester, if
equipped, and inspect for damage or carbon blockage. If replacement parts are required,
make sure to use only original equipment replacement parts.
WARNING: Replacement parts must be the same and installed in the
same position as the original parts or fire could result.
8
How To Check Coolant
Important: This is a liquid cooled engine. A 50/50% coolant mixture of phosphate-free
antifreeze and tap water is required for cooling, rust resistance, and lubrication of the
water pump.
WARNING
Severe thermal burns can occur by escaping steam or hot coolant.
• DO NOT remove radiator cap or reservoir cap if engine is warm or running.
• Stop engine and allow it to cool before removing radiator cap or reservoir cap
and before changing or adding coolant.
1. Check the coolant level. The coolant level must be between the FULL and LOW, or
ADD, marks on the coolant reservoir. If the coolant level is low, add a 50/50%
coolant mixture of phosphate-free antifreeze and tap water to the reservoir.
2. To remove the reservoir cap after engine is cool, place a thick cloth over the reservoir
cap. Slowly turn the reservoir cap counterclockwise to remove.
3. If the reservoir is dry, add coolant to both the reservoir and to the radiator. See the
equipment manual for location, operation, and maintenance of the coolant reservoir
and of the radiator.
4. To remove the radiator cap after engine is cool, place a thick cloth over the radiator
cap. Slowly turn the radiator cap counterclockwise to the first stop. If pressurized
steam escapes from the cap, stand back to avoid injury. After all pressure is
released, push down and turn the radiator cap counterclockwise to remove.
How To Change The Oil - Figure
Used oil is a hazardous waste product and must be disposed of properly. Do not discard
with household waste. Check with your local authorities, service center, or dealer for safe
disposal/recycling facilities.
23
Remove Oil
1. Remove the oil drain plug ( G, Figure 3). Drain the oil into an approved container.
2. After the oil has drained, install and tighten the oil drain plug.
Change The Oil Filter
For replacement intervals, see the Maintenance chart.
1. Drain the oil from t he engine. See Remove Oil section.
2. Remove the oil filter (H, Figure 3) and dispose of properly.
3. Before you install the new oil filter, lightly lubricate the oil filter gasket with fresh,
clean oil.
4. Install the oil filter by hand until the gasket contacts the oil filter adapter, then tighten
theoilfilter1/2to3/4turns.
5. Add oil. See Add Oil section.
Add Oil
• Place engine level.
• Clean the oil fill area of any debris.
• See the Specifications section for oil capacity.
1. Remove the dipstick (A, Figure 2).
2. Remove the oil fill cap (J).
3. Pour the oil slowly into the engine oil fill (C). Do not overfill.Important: When adding oil, adequate venting is required as follows:
• Remove the dipstick.
• Make sure adequate clearance (D) is maintained between the oil fill device (E)
and the engine oil fill (C).SeeFigure4.
4. Install and tighten the oil fill cap.
NOTICE: Before starting the engine, wipe the engine clean of any spilled oil.
5. After adding oil, install the dipstick. Start and run engine at idle for five minutes.
Check for leaks. Shut off engine. Wait three minutes and check oil level. If required,
add oil to bring oil level to the FULL mark (B) on the dipstick (Figure 2).
Fuel and its vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.
Storage
WARNING
• Never start or run the engine with the air cleaner assembly or the air filter
removed.
NOTICE: Do not use pressurized air or solvents to clean the filter. Pressurized air can
damage the filter and solvents will dissolve the filter.
See the Maintenance Chart for service requirements.
1. Open the latches (A) and remove the cover (B).SeeFigure7.
2. Remove the air filter (C).
3. To loosen debris, gently tap the air filter on a hard surface. If the air filter is
excessively dirty, replace with a new air filter.
4. Install the air filter.
5. Install the cover and close t he latches.
How To Replace The Fuel Filter - Figure
8
Fuel System
Draining the fuel tank is not recommended for storage. Instead, fill the fuel tank to
prevent condensation, then add a diesel fuel micro-biocide additive to prevent bacteria
and fungi from growing in the tank. Run the engine for several minutes to circulate the
additive through the system.
Engine Oil
While the engine is still warm, change the engine oil.
Fuel and its vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.
When Storing Fuel Or Equipment With Fuel In Tank
• Store away from furnaces, stoves, water heaters or other appliances that have
pilot lights or other ignition sources because they can ignite fuel vapors.
WARNING
Fuel and its vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.
• Disconnect battery at negative terminal (only engines with electric start.)
• Keep fuel away from sparks, open flames, pilot lights, heat, and other ignition
sources.
• Check f uel lines, tank, cap, and fittings frequently for cracks or leaks.
Replace if necessary.
• Before replacing the fuel filter, drain the fuel tank or close the fuel shut-off valve.
• Replacement parts must be the same and installed in the same position as the
original parts.
• If fuel spills, wait until it evaporates before starting engine.
If the fuel filter warning light illuminates while the engine is running, stop the engine and
drain water from fuel filter as follows:
Replace fuel filter
1. Disconnect the sensor wire (D).
2. Remove the drain plug (B) and discard the O-ring (E).
3. Remove the fuel filter (A) with a filter wrench.
4. Install a new fuel filter by hand until gasket ( F) contacts the housing. Then tighten an
additional 1/3 turn.
5. Install the drain plug with new O-ring.
6. Connect the sensor wire.
7. Activate the primer pump (C) until resistance is felt.
8. Start the engine and check for leaks.
Drain water from fuel filter
1. Stop the engine.
2. Place a drain pan under the fuel filter (A) and loosen drain plug (B) approximately
one turn.
3. Water should drain from the fuel filter. If necessary, operate the primer pump (C)to
drain water, but only until fuel flows from the fuel filter.
4. Tighten the drain plug.
5. Start the engine. Make sure that the warning light is off. Check for leaks.
How To Check /Adjust The Fan Belt - Figure
Check Fan Belt
1. Check the condition of the fan belt (A, Figure 9). If the fan belt has cracks or is
damaged, replace with a new belt.
2. Check the tension of the fan belt. Press on the center ( C) of the fan belt. If tension is
correct, the belt will move 3/8 -- 1/2 in (10 -- 12 mm) if 22 lbs (10 kg) of force is
applied to the center of the belt. If the tension is too loose, adjust as follows.
Adjust Fan Belt Tension
1. Loosen the alternator mounting bolts (D) and (E).SeeFigure9.
2. Position a pry bar (F) against the alternator (G) and the side of the engine block. To
tighten the fan belt, pull on the pry bar. Temporarily tighten the alternator mounting
bolts.
3. Check the tension of the fan belt. See Check Fan Belt section. If necessary, repeat
the procedure.
en
9
Troubleshooting
Need Assistance? Go to BRIGGSandSTRATTON.COM or call 1-800-233-3723.
Specifications
Engine Specifications
Model520000
Displacement51.87 ci (850 cc)
Bore2.677 in (68 mm)
Stroke3.071 in (78 mm)
Oil Capacity3.5 qt (3.3 L)
Engine Specifications
Model580000
Displacement58.09 ci (953 cc)
Bore2.835 in (72 mm)
Stroke3.071 in (78 mm)
Oil Capacity3.5 qt (3.3 L)
* Engine power will decrease 3.5% for each 1,000 feet (300 meters) above sea level and
1% for each 10° F(5.6° C) above 77° F(25° C). The engine will operate satisfactorily at
an angle up to 15°. Refer to the equipment operator’s manual for safe allowable
operating limits on slopes.
n We recommend that you see any Briggs & Stratton 3/LC Authorized Dealer for all
maintenance and service of the engine and engine parts. Use only genuine Briggs &
Stratton parts.
Y
Y
0.008 in (0.2 mm)
0.008 in (0.2 mm)
9
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