Briggs Stratton VANGUARD 58A447 User Manual

Operator’s Manual  
Vanguard  
Diesel  
Vanguard  
Model 432447  
522447  
Model 588447  
58A447  
Turbocharged Diesel  
582447  
ECopyright Briggs & Stratton Corporation  
Form No. 277110-3/07  
Printed in U.S.A.  
BRIGGSandSTRATTON.com  
Milwaukee, Wisconsin 53201 U.S.A.  
SAFETY  
WARNING  
WARNING  
Running engines produce heat. Engine  
parts, especially turbocharger and  
muffler, become extremely hot.  
Fuel and its vapors are extremely flam-  
mable and explosive.  
Fire or explosion can cause severe burns  
or death.  
Severe thermal burns can occur on  
contact.  
WHEN ADDING FUEL  
Combustible debris, such as leaves,  
grass, brush, etc. can catch fire.  
Turn engine OFF and let engine cool at least 2 minutes  
before removing fuel cap.  
Fill fuel tank outdoors or in well-ventilated area.  
Allow muffler, turbocharger, engine cylinder and fins to cool  
Do not overfill fuel tank. Fill tank to approximately 1-1/2  
before touching.  
inches below top of neck to allow for fuel expansion.  
Remove accumulated combustibles from muffler area and  
Keep fuel away from sparks, open flames, pilot lights, heat,  
cylinder area.  
and other ignition sources.  
Install and maintain in working order a spark arrester before  
using equipment on forest-covered, grass-covered, brush-  
covered unimproved land. The state of California requires  
this (Section 4442 of the California Public Resources  
Code). Other states may have similar laws. Federal laws  
apply on federal land.  
Check fuel lines, tank, cap, and fittings frequently for cracks  
or leaks. Replace if necessary.  
WHEN STARTING ENGINE  
Make sure muffler, fuel cap and air cleaner are in place.  
If fuel spills, wipe it off before starting engine.  
WARNING  
WHEN OPERATING EQUIPMENT  
Do not tip engine or equipment at angle which causes fuel to  
Rotating parts can contact or entangle  
hands, feet, hair, clothing, or accesso-  
ries.  
spill.  
WHEN TRANSPORTING EQUIPMENT  
Traumatic amputation or severe lacera-  
tion can result.  
Transport with fuel tank EMPTY or with fuel shut-off valve  
OFF.  
Operate equipment with guards in place.  
Keep hands and feet away from rotating parts.  
Tie up long hair and remove jewelry.  
WHEN STORING FUEL OR EQUIPMENT WITH  
FUEL IN TANK  
Store away from furnaces, stoves, water heaters or other  
appliances that have pilot light or other ignition source  
because they can ignite equipment with stored fuel or fuel  
source.  
Do not wear loose-fitting clothing, dangling drawstrings or  
items that could become caught.  
WARNING  
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.  
3
SAFETY  
WARNING  
WARNING  
Engines give off carbon monoxide, an  
odorless, colorless, poison gas.  
Unintentional sparking can result in fire  
or electric shock.  
Breathing carbon monoxide can cause  
nausea, fainting or death.  
Unintentional start-up can result in  
entanglement, traumatic amputation,  
or laceration.  
Start and run engine outdoors.  
Do not start or run engine in enclosed area, even if doors  
or windows are open.  
BEFORE PERFORMING ADJUSTMENTS OR  
REPAIRS  
Disconnect battery at negative terminal.  
WARNING  
Never remove radiator cap or radiator reservoir  
cap while the engine is hot or running. Severe  
thermal burns or injury can occur by escaping  
steam or hot engine coolant.  
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.  
Stop engine and allow to cool before removing radiator or  
reservoir cap.  
To remove reservoir cap after engine is cool, place a thick  
cloth over cap and remove it slowly.  
To remove radiator cap after engine is cool, place a thick  
cloth over cap and rotate it slowly counter-clockwise to  
the first stop. Pressurized steam may emit from the cap,  
stand back to avoid injury. Once all pressure is released,  
rotate cap counter-clockwise while pushing down on cap  
to remove.  
ENGINE INFORMATION  
TECHNICAL INFORMATION  
Engine Power Rating Information  
The gross power rating for individual gas engine models is labeled  
in accordance with SAE (Society of Automotive Engineers) code  
J1940 (Small Engine Power & Torque Rating Procedure), and rat-  
ing performance has been obtained and corrected in accordance  
with SAE J1995 (Revision 2002-05). Torque values are derived at  
3060 RPM; horsepower values are derived at 3600 RPM. Actual  
gross engine power will be lower and is affected by, among other  
things, ambient operating conditions and engine-to-engine variabili-  
ty. Given both the wide array of products on which engines are  
placed and the variety of environmental issues applicable to oper-  
ating the equipment, the gas engine will not develop the rated  
gross power when used in a given piece of power equipment (actu-  
al “on-site” or net power). This difference is due to a variety of fac-  
tors including, but not limited to, accessories (air cleaner, exhaust,  
charging, cooling, carburetor, fuel pump, etc.), application limita-  
tions, ambient operating conditions (temperature, humidity, alti-  
tude), and engine-to-engine variability. Due to manufacturing and  
capacity limitations, Briggs & Stratton may substitute an engine of  
higher rated power for this Series engine.  
4
ENGINE INFORMATION  
1
2
13  
Diesel  
6
7
12  
3
11  
10  
6. Injector nozzle  
7. Glow plug  
8. Oil drains  
9. Oil filter  
9
10. Dipstick  
11. Injector pump  
1. Thermostat  
4
12. Engine Date Code  
5
2. Oil filler cap  
xxxxxxxxx  
3. Electric starter  
4. Oil pan  
5. Alternator  
13. Engine Model & Type number  
8
xxxxxx xxxx-xx  
Turbo-charged Diesel  
15  
7
2
8
14  
1
3
13  
7. Injector nozzle  
8. Glow plug  
9. Oil drains  
12  
4
10. Oil cooler  
(if equipped)  
11  
5
11. Oil filter  
12. Dipstick  
1. Ther
2. Oil fi
13. Injector pump  
10  
14. Engine Date Code  
6
3. Turb
xxxxxxxxx  
9
4. Electric starter  
5. Alternator  
6. Oil pan  
15. Engine Model & Type number  
xxxxxx xxxx-xx  
GENERAL INFORMATION  
This is a three cylinder, liquid cooled engine.  
MODEL 522447  
Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 mm (2.68 in.)  
Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 mm (3.07 in.)  
Displacement . . . . . . . . . . . . . . . . . . . . . . 850 cc (52.0 cu. in.)  
On mobile equipment, this engine will operate satisfactorily at any  
angle at which operator and equipment can function safely.  
MODEL 432447  
Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 mm (2.68 in.)  
Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 mm (2.52 in.)  
Displacement . . . . . . . . . . . . . . . . . . . . . . 697 cc (42.5 cu. in.)  
MODEL 582447, 588447, 58A447  
Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 mm (2.834 in.)  
Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 mm (3.07 in.)  
Displacement . . . . . . . . . . . . . . . . . . . . . . 953 cc (58.1 cu. in.)  
5
OIL  
OIL CAPACITY  
Oil capacity, including oil filter, is 3.3 liters (3.5 quarts).  
SAE Viscosity Grades  
TYPE OF OIL TO USE  
Use a high quality detergent oil classified “For Service CF, or  
CF-4”.  
Do not use special additives with recommended oils.  
Do not mix oil with fuel.  
Choose a viscosity according to the table opposite.  
*
CAUTION: This engine is shipped from Briggs &  
Stratton without oil. Check oil level before starting  
engine. If you start the engine without oil, the engine  
will be damaged beyond repair and will not be  
covered under warranty.  
10  
32  
0
50  
70  
21  
90  
32  
110  
43  
-30  
-34  
-10  
-23  
°F  
°C  
-12  
10  
STARTING TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE  
*
A synthetic 5W-30 oil may be used.  
CHECKING AND ADDING OIL  
Check oil level before starting the engine.  
Check level daily, or after every eight (8) hours.  
Keep oil level at FULL.  
Note: After filling with or changing oil, start and run engine at  
idle for 5 minutes. Shut engine off. Wait 3 minutes and check oil  
level. Add oil, if required, to bring level to Full mark on dipstick.  
Do not overfill.  
Bring oil  
level to F  
mark  
OIL FILL  
on dipstick.  
[2]. Remove dipstick and wipe  
with clean cloth.  
[4]. If oil is required, remove dipstick to allow  
proper venting and pour oil slowly. Fill to  
FULL line on dipstick. Recheck.  
[3]. Then replace dipstick, and  
remove to check oil level.  
[1]. Place equipment level.  
Clean around oil fill.  
CAUTION: When filling engine or adding oil.  
To prevent engine damage upon  
start-up, proper venting is necessary  
when filling engine with oil or adding oil.  
Note  
Clearance  
In addition to ensuring a level engine,  
removing dipstick, and pouring oil  
slowly, there must be clearance  
between the oil fill device and the oil fill  
hole in the valve cover as shown. This  
clearance is necessary to permit  
venting when filling, which prevents oil  
from overrunning into breather.  
Note  
Clearance  
[5]. Replace dipstick firmly.  
6
FUEL  
TYPE OF FUEL TO USE  
CAUTION: Do not use kerosene or gasoline  
instead of diesel fuel. Failure to observe this caution  
will damage the engine.  
THIS ENGINE IS CERTIFIED TO OPERATE  
ON DIESEL FUEL.  
Use clean, fresh, diesel fuel with a minimum of 40 cetane.  
FUEL LEVEL  
Keep fuel tank full.  
WARNING  
Fill fuel tank outdoors or in well-ventilated area,  
away from sparks, open flames, pilot lights, heat,  
and other ignition sources.  
Do not overfill tank.  
Allow space in tank for fuel expansion.  
If fuel spills, wait until it evaporates before starting  
ADDING FUEL  
engine.  
[1]. Remove cap. Fill tank to approximately 1-1/2 inches  
below top of neck to allow for fuel expansion. Be careful  
not to overfill.  
Turn engine OFF and let engine cool at least 2  
minutes before removing gas cap.  
[2]. Replace cap before starting.  
[3]. Check for fuel leaks at fuel filter, injector pump, fuel  
pipes, etc.  
COOLANT  
SPECIFICATIONS  
This engine is water cooled.  
Do not touch radiator or open  
WARNING  
radiator cap, or open reservoir  
when engine is hot or running.  
A 50/50% mixture is required of phosphate-free antifreeze and  
tap water for heat dissipation, rust resistance and lubrication.  
Allow engine to cool before  
changing or adding coolant.  
CHANGING & ADDING COOLANT  
Fill radiator to bottom of fill cap seat and between FULL and LOW  
in reservoir, if so equipped.  
GAUGES  
TYPICAL GAUGES (If Equipped)  
COOLANT TEMPERATURE GAUGE  
FUEL GAUGE  
To minimize condensation, keep fuel  
tank full.  
Indicates coolant temperature  
when the starter switch is ON.  
Normal range 80°-90° C  
(175°-195° F).  
Dangerous range above 105° C  
(220° F).  
FUEL SHUT-OFF  
Open valve before starting  
engine.  
ON  
POSITION  
HOUR METER  
Indicates the total number of hours the  
engine has been run.  
CAUTION: To prevent leaking, close fuel shut-  
off valve when engine is transported.  
7
GAUGES  
TYPICAL PANEL LIGHTS (If Equipped)  
WARNING LIGHTS (Typical)  
Fuel filter light  
The fuel filter light comes on when enough water collects in  
the fuel filter, but should be out when the water is drained.  
If fuel filter warning light comes on while engine is running, stop  
engine and drain water from fuel filter.  
X
Engine oil pressure light  
Ignition light  
The engine oil pressure light comes on when the starter  
switch is turned to the ON position and should be out while  
engine is running. If oil pressure light comes on while engine is  
running, stop engine immediately. Check oil level or electrical  
system.  
The ignition light comes on when the starter switch is turned to  
the ON position, and should be out while engine is running.  
Temperature light  
If temperature light comes on, engine is overheating. Check:  
Charge light  
S
coolant level;  
debris on radiator or any restriction to air flow.  
The charge light comes on when the starter switch is turned to  
the ON position, but should be out while engine is running.  
If charge light comes on while engine is running, check electrical  
system.  
S
Heat or glow light  
The heat or glow light comes on when the starter switch is  
turned to HEAT or GLOW (ON if no HEAT or GLOW position),  
but should be out while engine is running.  
If charge light does not come on when starter switch is turned to  
the ON position, check fuse or bulb.  
See an Authorized Briggs & Stratton 3/LC Service Dealer if  
necessary for operation repair.  
STARTING  
STARTING IN COLD WEATHER:  
(below -10° C or 14° F)  
Use correct type of oil for expected starting  
Start with throttle control in FAST position.  
temperature. (See Oil.)  
Do not use fuel left over from summer. Use fresh fuel.  
Remove external equipment/engine loads. (See  
equipment operating instructions.)  
Allow engine to warm up several seconds to several  
Open fuel shut-off valve, if equipped, before starting  
minutes, depending on outside temperature.  
engine.  
CAUTION: Before starting engine for  
the first time, charge battery as the  
equipment manufacturer recommends.  
Failure to do so, may cause damage to  
the engine.  
WARNING  
The manufacturer of equipment on which  
this engine is installed specifies top speed at  
which engine will be operated. DO NOT  
EXCEED this speed.  
WARNING  
Do not use pressurized starting fluids.  
Vapors are flammable.  
Keep hands and feet clear of rotating  
machinery.  
8
STARTING & STOPPING  
TO START ENGINE  
[3]. Insert key into starter  
switch at OFF position.  
Turn key to ON or HEAT.  
(GLOW light comes on  
indicating glow plugs are  
preheating combustion  
chamber.)  
Typical throttle control  
[1]. Insert key into starter  
switch at OFF position.  
Typical starter switch  
[2]. Move throttle control  
to SLOW.  
CAUTION:  
To prolong starter life,  
use short starting cycles,  
not to exceed 30 secs./  
min.  
Typical starter switch  
Typical starter switch  
Extended cranking can  
damage starter motor.  
[4]. When GLOW light goes out,  
turn key to START.  
[5]. When engine starts, release key,  
which will return to ON position.  
[6]. Move throttle control to SLOW  
(if in FAST for cold starting  
instructions).  
CAUTION:  
DO NOT accelerate or race a  
cold engine. Failure to observe  
this caution may lead to engine  
damage.  
[7]. Allow engine to warm up a few  
minutes before applying load.  
Typical throttle control  
TO STOP ENGINE  
CAUTION:  
FOR TURBOCHARGER-EQUIPPED  
ENGINE.  
After operating engine at full load, allow  
engine to idle for one minute before shutting it  
off. Failure to observe this caution may lead  
to turbocharger malfunction.  
Typical throttle control  
Typical starter switch  
[1]. Move throttle to SLOW.  
Allow engine to run for  
short time to cool down.  
[2]. Turn key to OFF.  
Always remove key and  
store out of reach of children.  
9
MAINTENANCE  
REGULAR MAINTENANCE WILL IMPROVE THE PERFORMANCE AND EXTEND THE LIFE OF THE ENGINE. MORE  
FREQUENT SERVICE IS REQUIRED WHEN OPERATING IN ADVERSE CONDITIONS.  
See any Authorized Briggs & Stratton 3/LC Dealer for service. Use only genuine Briggs & Stratton parts. Other parts may not  
perform as well, may damage the engine, and may result in injury. In addition, use of other parts may void your warranty.  
DAILY CHECKS  
Task  
Perform  
task at  
hourly or  
OIL  
Before starting engine, check oil for correct level.  
See page 6 of this manual for instructions on checking  
and adding oil.  
calendar  
interval.  
Check oil  
level  
4
4
CAUTION:  
Check for  
oil leaks  
Used oil is a hazardous waste product. Dispose of  
used oil properly. Do not discard with household  
waste. Check with your local authorities, service  
center, or dealer for safe disposal/recycling facilities.  
Change oil  
and oil filter  
4*  
4***  
Check  
coolant  
CONTROL PARTS  
4
To assure smooth operation, keep injector pump link-  
age, springs and controls free of debris. Linkage should  
move freely. Depending on use, this may need to be  
performed more often.  
Change  
coolant  
4
Check fan  
belt  
4
Engine parts should be kept  
WARNING  
clean to reduce the risk of  
overheating and ignition of  
accumulated debris.  
Service air  
cleaner  
4*  
4**  
Check  
valve  
clearance  
4
CAUTION: Do not use water to clean engine  
parts. Water could contaminate fuel system. Use a  
brush or dry cloth.  
Check  
battery  
4
electrolyte  
MUFFLER  
Change  
fuel filter  
element  
Before running engine, clean  
muffler and manifold areas to  
4****  
WARNING  
remove all grass and com-  
bustible debris.  
Depending on use, this may  
need to be performed more  
often.  
* Perform first maintenance operation after 50  
hours. All subsequent maintenance performed at  
this interval, unless specified. Service more often  
when operating under heavy load or in high  
temperatures.  
** Replace after every 600 hours of operation.  
Service more often when operating under heavy  
load or in high temperature.  
*** Perform annually if operated less than 100 hours.  
**** Follow manufacturer’s maintenance schedule if  
non-Briggs & Stratton approved part is used.  
10  
MAINTENANCE  
DAILY CHECKS continued  
COOLANT  
WARNING  
Never remove radiator cap or radiator reservoir  
cap while the engine is hot or running. Severe  
thermal burns or injury can occur by escaping  
steam or hot engine coolant.  
Coolant level should be between FULL and LOW when  
engine is cold. If reservoir is dry, it must be filled along with  
radiator.  
Check coolant level when engine is cold.  
If engine is warm DO NOT remove radiator cap.  
Normal water temperature  
gauge should read between  
175° and 195° F (80° and 90° C)  
when engine is running.  
Stop engine and allow to cool before removing radiator or  
WARNING  
reservoir cap.  
To remove reservoir cap after engine is cool, place a thick  
cloth over cap and remove it slowly.  
If water temperature rises  
above 220° F (105° C), idle  
engine down for a while. Then stop engine. Once engine  
is cooled, check coolant level, fan belt tension and  
clogged radiator fins.  
To remove radiator cap after engine is cool, place a thick  
cloth over cap and rotate it slowly counter-clockwise to  
the first stop. Pressurized steam may emit from the cap,  
stand back to avoid injury. Once all pressure is released,  
rotate cap counter-clockwise while pushing down on cap  
to remove.  
REGULAR MAINTENANCE  
CHANGING OIL  
WARNING  
[1]. Place engine level.  
[2]. Disconnect battery at negative terminal.  
[3]. With engine OFF but still warm remove oil drain  
plug and drain oil into appropriate receptacle.  
Disconnect battery at negative terminal.  
[4]. Change the oil filter. See “Changing Oil Filter”.  
[5]. Reinstall drain plug and torque to 352 kg-cm  
(25.5 ft-lb).  
[6]. Refill engine with new oil. Fill to FULL mark on  
dipstick with new oil. Replace oil cap.  
Caution: Do not overfill.  
[7]. Start and run engine at idle for 5 minutes.  
[8]. Stop engine, and wait 3 minutes. Then re-check oil  
level.  
OIL FILTER  
[9]. If required, add oil to bring level to F mark on  
OIL DRAIN PLUG  
OIL DRAIN PLUG  
dipstick.  
[10]. Check for leaks.  
Oil drain/Oil filter  
11  
MAINTENANCE  
REGULAR MAINTENANCE continued  
CHANGING OIL FILTER  
WARNING  
Disconnect battery at  
negative terminal.  
[1]. Perform this maintenance during oil change main-  
tenance. Drain engine oil as described for oil  
change, and remove oil filter.  
[2]. Before installing new filter, apply to filter gasket  
fresh, clean oil.  
[3]. Screw filter on by hand until gasket contacts oil  
filter adapter. Tighten 1/2 to 3/4 turn more.  
[4]. Add fresh oil. Follow steps as described for oil  
change.  
OIL FILTER  
[5]. Check for oil leaks around filter.  
OIL DRAIN PLUG  
OIL DRAIN PLUG  
Oil drain/Oil filter  
AIR CLEANER  
Note: Air cleaner may be supplied by equipment manufacturer.  
Cartridge  
To clean cartridge, gently tap on end with handle of  
screwdriver. (Replace cartridge if very dirty or damaged.)  
AIR  
CLEANER  
BODY  
CAUTION: Do not use pressurized air or solvents  
to clean cartridge. Pressurized air can damage  
cartridge; solvents will dissolve cartridge.  
CARTRIDGE  
COVER  
[1]. Unlock clamps and remove cover.  
[2]. Remove cartridge from air cleaner body.  
[3]. Carefully clean out air cleaner cover.  
[4]. Install cartridge in body.  
CLAMPS  
[5]. Install cover and lock clamps.  
12  
MAINTENANCE  
FUEL FILTER  
If the fuel filter warning light comes on while engine is  
running, stop engine and drain water from fuel filter.  
To drain water:  
WARNING  
Disconnect battery at  
negative terminal.  
[1]. Stop engine.  
[2]. Place a drain pan under fuel filter and loosen drain  
plug approximately 1 turn.  
PRIMING  
PUMP  
O-RING  
[3]. Water should drain. If necessary, operate priming  
pump to drain water, but only until fuel flows from filter.  
[4]. Tighten drain plug.  
[5]. Start engine. Ensure warning light goes out. Check for  
leaks.  
FUEL  
FILTER  
To replace fuel filter:  
[1]. Disconnect sensor wire. Remove drain plug and  
discard O-ring.  
DRAIN  
PLUG  
[2]. Remove fuel filter with filter wrench.  
SENSOR  
WIRE  
[3]. Screw new filter on by hand until gasket contacts  
housing. Then tighten 1/3 turn more.  
[4]. Install drain plug with new O-Ring. Connect sensor  
wire.  
[5]. Activate primer pump until resistance is felt.  
[6]. Start engine and check for leaks.  
Drain/replace fuel filter  
VALVE CLEARANCE  
With No. 1 piston at TDC of compression stroke, check valve  
clearances for cylinders shown in chart below. Rotate crank-  
shaft 360° clockwise to check remaining valves. Adjust in  
same order, if required.  
Note: If engine is running normally, this check and adjustment  
may be omitted.  
Piston Position  
Cylinder  
Int  
1
D
D
2
3
D
No. 1 piston at TDC, of compres-  
sion stroke  
Exh  
Int  
D
D
Rotate Crankshaft 360° clockwise  
Exh  
D
[1]. Loosen adjusting lock nut.  
[2]. Using a wrench to hold adjusting lock nut, adjust with  
screwdriver. Determine clearance using a feeler gauge.  
[3]. While holding screw driver in place, torque adjusting  
lock nut.  
SCREW  
DRIVER  
Valve clearances (cold):  
WRENCH  
Int 0.2 mm (0.008 in.)  
FEELER  
GAUGE  
Exh 0.2 mm (0.008 in.)  
Adjusting lock nut torque: 110 kg-cm (95 in. lbs.)  
Check valve cover gasket for leakage. Replace if required.  
Torque valve cover nuts to 55 kg-cm (48 in. lbs.)  
Valve clearance adjustment  
13  
MAINTENANCE  
FAN BELT  
Check condition of fan belt.  
Replace if damaged or worn.  
BELT  
To check for correct fan belt tension  
When 10 kg (22 lbs.) of force is pressed at center of span  
between fan and alternator, there should be 10 to 12 mm  
(3/8 1/2 in.) of belt movement.  
10 12 mm  
(3/8 1/2 Inch)  
BELT MOVEMENT  
To adjust for correct tension  
[1]. Loosen the 2 bolts ( A and B ).  
BELT  
HANDLE  
[2]. Place a handle (or similar object) between the  
alternator and engine cylinder block. Then move the  
alternator towards the outside of the engine, until the  
fan belt deflection conforms to the specified value.  
Specified fan belt deflection:  
A
10 to 12 mm / 10 kg (3/8 to 1/2 in. / 22 lbs.)  
[3]. Temporarily tighten the 2 bolts ( A and B ) to fix the  
alternator. Then remove the handle. Check fan belt  
deflection. If it is within specifications, permanently  
tighten the 2 bolts ( A and B ) as given below. If not,  
repeat the above adjustment procedure.  
Specified tightening torque:  
BELT MOVEMENT  
B
A : 195 kg-cm (170 in-lbs)  
B : 622 kg-cm (45 ft-lbs)  
Check the fan belt deflection again.  
SPARK ARRESTOR  
If engine muffler is equipped with spark arrestor screen  
assembly, remove for cleaning and inspection every 50  
hours. Replace if damaged.  
14  
ADJUSTMENTS  
LOCK NUT  
SPEED  
CONTROL  
LEVER  
TO ADJUST THROTTLE CONTROL  
IDLE  
SPEED  
SCREW  
[1]. Move equipment throttle control in SLOW or IDLE  
position.  
[2]. If lever does not contact idle speed screw, loosen casing  
clamp screw.  
[3]. Adjust throttle control cable to allow speed control lever  
to contact idle speed screw.  
[4]. Tighten casing clamp screw.  
TO ADJUST IDLE SPEED  
[1]. Move equipment throttle control in SLOW or IDLE  
position.  
Injector pump  
[2]. Loosen lock nut.  
CONTROL ADJUSTMENTS  
If engine is hard to start or acceleration is uneven, check  
control operation and adjust if required as described  
below:  
[3]. Adjust idle speed screw to obtain equipment manufac-  
turer’s specified idle speed.  
[4]. Tighten lock nut.  
[5]. Re-adjust throttle control if required.  
15  
SERVICE  
PARTIAL LIST OF GENUINE BRIGGS & STRATTON PARTS  
Part  
Part No.  
Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100028  
Oil filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 820314  
Air filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 820263  
Fuel filter element . . . . . . . . . . . . . . . . . . . . . . . . . . . . 820311  
SERVICE  
See an Authorized Briggs & Stratton 3/LC Service Dealer.  
Each one carries a stock of Genuine Briggs & Stratton 3/LC  
Parts and is equipped with special service tools. Only dealers  
advertising as Authorized Briggs & Stratton 3/LC Service  
Dealers are required to meet Briggs & Stratton standards.  
You may locate your nearest Authorized Briggs & Stratton  
3/LC Service Dealer by calling 1-800-233-3723.  
When you purchase equip-  
ment powered by a Briggs &  
Stratton engine, you are assu-  
red of highly skilled, reliable  
service at any Authorized  
Service Dealers worldwide.  
Look for these signs wherev-  
er Briggs & Stratton service is  
offered.  
The illustrated shop manual shown here  
includes common specifications and  
detailed information covering adjust-  
ment, tune-up and repair of Vanguard  
three cylinder, 4 cycle engines. It is  
available from any Authorized Briggs &  
Stratton Service Dealer.  
Part No. MS-1055  
STORAGE  
STORAGE  
Engines stored over 30 days need special attention.  
[1]. While engine is still warm, change oil.  
[2]. Remove glow plugs and pour about 3 cc of engine oil into  
each cylinder. Replace glow plugs and crank slowly to  
distribute oil.  
[3]. Clean engine of surface debris, chaff or grass.  
[4].  
Store in a clean, dry area. Do  
not store in same area as a  
stove, furnace, water heater, or  
other appliance that uses a pilot  
light or has a device that can  
create a spark.  
WARNING  
16  
For Model 432447, 522447 & 582447  
Briggs & Stratton Corporation (B&S), the California Air Resources Board (CARB)  
and the United States Environmental Protection Agency (U.S. EPA)  
Emissions Control System Warranty Statement (Owner’s Defect Warranty Rights and Obligations)  
EMISSIONS CONTROL WARRANTY COVERAGE IS APPLICABLE TO  
CERTIFIED MODEL YEAR 2001 AND LATER ENGINES, WHICH ARE PUR-  
CHASED AND USED IN CALIFORNIA, AND TO CERTIFIED MODEL YEAR  
2001 AND LATER ENGINES, WHICH ARE PURCHASED AND USED ELSE-  
WHERE IN THE UNITED STATES.  
California and United States Emissions Control Defects Warranty Statement  
The California Air Resources Board (CARB), U.S. EPA and B&S are pleased  
to explain the Emissions Control System Warranty on your model year 2001  
and later Non-road Compression-ignition engine. In California, new Non-road  
Compression-ignition engines must be designed, built and equipped to meet  
the State’s stringent anti-smog standards. Elsewhere in the United States, new  
Non-road Compression-ignition engines certified for model year 2001 and lat-  
er, must meet similar standards set forth by the U.S. EPA. B&S must warrant  
the emissions control system on your engine for the period of time listed below,  
provided there has been no abuse, neglect or improper maintenance of your  
Non-road Compression-ignition engine.  
Your emissions control system includes parts such as the air cleaner, igni-  
tion system and muffler. Also included may be connectors and other emis-  
sions related assemblies.  
Where a warrantable condition exists, B&S will repair your Non-road Com-  
pression-ignition engine at no cost to you including diagnosis, parts and  
labor.  
Briggs & Stratton Corporation Emissions Control Defects Warranty Coverage  
Non-road Compression-ignition engines are warranted relative to emissions  
control parts defects for a period of 1500 hours or two years, whichever oc-  
curs first, subject to provisions set forth below. If any covered part on your  
Non-road Compression-ignition engine is defective, the part will be repaired  
or replaced by B&S.  
Owner’s Warranty Responsibilities  
As the Non-road Compression-ignition engine owner, you are responsible for  
the performance of the required maintenance listed in your Operating &  
Maintenance Instructions. B&S recommends that you retain all your re-  
ceipts covering maintenance on your Non-road Compression-ignition en-  
gine, but B&S cannot deny warranty solely for the lack of receipts or for your  
failure to ensure the performance of all scheduled maintenance.  
pression-ignition engine or a part has failed due to abuse, neglect, improper  
maintenance or unapproved modifications.  
You are responsible for presenting your Non-road Compression-ignition en-  
gine to an Authorized B&S Service Dealer as soon as a problem exists. The  
undisputed warranty repairs should be completed in a reasonable amount of  
time, not to exceed 30 days.  
As the Non-road Compression-ignition engine owner, you should however be  
aware that B&S may deny you warranty coverage if your Non-road Com-  
If you have any questions regarding your warranty rights and responsibili-  
ties, you should contact a B&S Service Representative at 1-800-233-3723.  
Briggs & Stratton Corporation Emissions Control Defects Warranty Provisions  
The following are specific provisions relative to your Emissions Control Defects  
Warranty Coverage. It is in addition to the B&S engine warranty for non-regulated  
engines found in the Operating & Maintenance Instructions.  
1. Warranted Parts  
3. No Charge  
Repair or replacement of any Warranted Part will be performed at no  
charge to the owner, including diagnostic labor which leads to the deter-  
mination that a Warranted Part is defective, if the diagnostic work is per-  
formed at an Authorized B&S Service Dealer. For emissions warranty  
service, contact your nearest Authorized B&S Service Dealer as listed in  
the “Yellow Pages” under “Lawn Mowers,” “Engines, Gasoline,” “Gaso-  
line Engines” or similar category.  
Coverage under this warranty extends only to the parts listed below (the  
emissions control systems parts) to the extent these parts were present  
on the engine purchased.  
a. Fuel Metering System  
Injection Pump with feed pump  
Injection nozzle  
Fuel Filter  
4. Claims and Coverage Exclusions  
Warranty claims shall be filed in accordance with the provisions of the  
B&S Engine Warranty Policy. Warranty coverage shall be excluded for  
failures of Warranted Parts which are not original B&S parts or because  
of abuse, neglect or improper maintenance as set forth in the B&S En-  
gine Warranty Policy. B&S is not liable to cover failures of Warranted  
Parts caused by the use of add-on, non-original, or modified parts.  
b. Air Induction System  
Air cleaner  
Intake manifold  
c. Ignition System  
Glow plug  
d. Exhaust System  
Exhaust manifold  
e. Miscellaneous Items Used in Above Systems  
Vacuum, temperature, position, time sensitive valves and  
switches  
5. Maintenance  
Any Warranted Part which is not scheduled for replacement as required  
maintenance or which is scheduled only for regular inspection to the ef-  
fect of “repair or replace as necessary” shall be warranted as to defects  
for the warranty period. Any Warranted Part which is scheduled for  
replacement as required maintenance shall be warranted as to defects  
only for the period of time up to the first scheduled replacement for that  
part. Any replacement part that is equivalent in performance and durabili-  
ty may be used in the performance of any maintenance or repairs. The  
owner is responsible for the performance of all required maintenance, as  
defined in the B&S Operating & Maintenance Instructions.  
Electronic Controls  
Connectors and assemblies  
Hoses  
2. Length of Coverage  
B&S warrants to the initial owner and each subsequent purchaser that  
the Warranted Parts shall be free from defects in materials and workman-  
ship which caused the failure of the Warranted Parts for a period of 1500  
hours or two years, whichever occurs first, from the date the engine is  
delivered to a retail purchaser.  
6. Consequential Coverage  
Coverage hereunder shall extend to the failure of any engine compo-  
nents caused by the failure of any Warranted Part still under warranty.  
17  
For Model 588447 & 58A447  
Briggs & Stratton Corporation (B&S), the California Air Resources Board (CARB)  
and the United States Environmental Protection Agency (U.S. EPA)  
Emissions Control System Warranty Statement (Owner’s Defect Warranty Rights and Obligations)  
EMISSIONS CONTROL WARRANTY COVERAGE IS APPLICABLE TO CER-  
TIFIED MODEL 2001 AND LATER ENGINES, WHICH ARE PURCHASED  
AND USED IN CALIFORNIA, AND TO CERTIFIED MODEL YEAR 2001 AND  
LATER ENGINES, WHICH ARE PURCHASED AND USED ELSEWHERE IN  
THE UNITED STATES.  
California, and United States Emissions Control Defects Warranty Statement  
The California Air Resources Board (CARB), U.S. EPA and B&S are pleased to  
explain the Emissions Control System Warranty on your model year 2001 and  
later Non-road Compression-ignition engine. In California, new Non-road Com-  
pression-ignition engines must be designed, built and equipped to meet the  
State’s stringent anti-smog standards. Elsewhere in the United States, new Non-  
road Compression-ignition engines certified for model year 2001 and later, must  
meet similar standards set forth by the U.S. EPA. B&S must warrant the emis-  
sions control system on your engine for the period of time listed below, provided  
there has been no abuse, neglect or improper maintenance of your Non-road  
Compression-ignition engine.  
Your emissions control system includes parts such as the air cleaner, ignition  
system and muffler. Also included may be connectors and other emissions re-  
lated assemblies.  
Where a warrantable condition exists, B&S will repair your Non-road Compres-  
sion-ignition engine at no cost to you including diagnosis, parts and labor.  
Briggs & Stratton Corporation Emissions Control Defects Warranty Coverage  
Small off-road engines are warranted relative to emissions control parts de-  
fects for a period of 3,000 hours or five years, subject to provisions set forth  
below.  
If any covered part on your Non-road Compression-ignition engine is defec-  
tive, the part will be repaired or replaced by B&S.  
Owner’s Warranty Responsibilities  
As the Non-road Compression-ignition engine owner, you are responsible for  
the performance of the required maintenance listed in your Operating & Main-  
tenance Instructions. B&S recommends that you retain all your receipts cov-  
ering maintenance on your Non-road Compression-ignition engine, but B&S  
cannot deny warranty solely for the lack of receipts or for your failure to ensure  
the performance of all scheduled maintenance.  
sion-ignition engine or a part has failed due to abuse, neglect, improper main-  
tenance or unapproved modifications.  
You are responsible for presenting your Non-road Compression-ignition en-  
gine to an Authorized B&S Service Dealer as soon as a problem exists. The  
undisputed warranty repairs should be completed in a reasonable amount of  
time, not to exceed 30 days.  
As the Non-road Compression-ignition engine owner, you should however be  
aware that B&S may deny you warranty coverage if your Non-road Compres-  
If you have any questions regarding your warranty rights and responsibilities,  
you should contact a B&S Service Representative at 1-800-233-3723.  
Briggs & Stratton Corporation Emissions Control Defects Warranty Provisions  
The following are specific provisions relative to your Emissions Control Defects  
Warranty Coverage. It is in addition to the B&S engine warranty for non-regulated  
engines found in the Operating & Maintenance Instructions.  
2. Length of Coverage  
B&S warrants to the initial owner and each subsequent purchaser that the  
Warranted Parts shall be free from defects in materials and workmanship  
which caused the failure of the Warranted Parts for a period of 3,000 hours  
or five years from the date the engine is delivered to a retail purchaser.  
1. Warranted Parts  
Coverage under this warranty extends only to the parts listed below (the  
emissions control systems parts) to the extent these parts were present on  
the engine purchased.  
3. No Charge  
Repair or replacement of any Warranted Part will be performed at no  
charge to the owner, including diagnostic labor which leads to the deter-  
mination that a Warranted Part is defective, if the diagnostic work is per-  
formed at an Authorized B&S Service Dealer. For emissions warranty ser-  
vice, contact your nearest Authorized B&S Service Dealer as listed in the  
Yellow Pages” under “Lawn Mowers,” “Engines, Gasoline,” “Gasoline En-  
gines” or similar category.  
a. Fuel Metering System  
Injection pump with feed pump  
Injection nozzle  
Fuel Filter  
4. Claims and Coverage Exclusions  
b. Air Induction System  
Warranty claims shall be filed in accordance with the provisions of the B&S  
Engine Warranty Policy. Warranty coverage shall be excluded for failures  
of Warranted Parts which are not original B&S parts or because of abuse,  
neglect or improper maintenance as set forth in the B&S Engine Warranty  
Policy. B&S is not liable to cover failures of Warranted Parts caused by the  
use of add-on, non-original, or modified parts.  
Air cleaner  
Intake manifold  
c. Ignition System  
Glow plug  
d. Exhaust System  
5. Maintenance  
Any Warranted Part which is not scheduled for replacement as required  
maintenance or which is scheduled only for regular inspection to the effect  
of “repair or replace as necessary” shall be warranted as to defects for the  
warranty period. Any Warranted Part which is scheduled for replacement  
as required maintenance shall be warranted as to defects only for the  
period of time up to the first scheduled replacement for that part. Any re-  
placement part that is equivalent in performance and durability may be  
used in the performance of any maintenance or repairs. The owner is re-  
sponsible for the performance of all required maintenance, as defined in  
the B&S Operating & Maintenance Instructions.  
Exhaust manifold  
Turbocharger  
e. Miscellaneous Items Used in Above Systems  
Vacuum, temperature, position, time sensitive valves and switches  
Electronic Controls  
Connectors and assemblies  
Hoses  
6. Consequential Coverage  
Coverage hereunder shall extend to the failure of any engine components  
caused by the failure of any Warranted Part still under warranty.  
18  
BRIGGS & STRATTON 3/LC ENGINE OWNER WARRANTY POLICY  
Effective January 1, 2006 replaces all undated Warranties and all Warranties dated before January 1, 2006  
LIMITED WARRANTY  
Briggs & Stratton Corporation (B&S) will repair or replace, free of charge, any part(s) of the engine that is defective in material or workmanship or both.  
Transportation charges on parts submitted for repair or replacement under this warranty must be borne by purchaser. This warranty is effective for the  
time periods and subject to the conditions stated below. For warranty service, find the nearest Authorized Briggs & Stratton 3/LC Service Dealer in  
THERE IS NO OTHER EXPRESS WARRANTY. IMPLIED WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A  
PARTICULAR PURPOSE, ARE LIMITED TO ONE YEAR FROM PURCHASE, OR TO THE EXTENT PERMITTED BY LAW ANY AND ALL IMPLIED  
WARRANTIES ARE EXCLUDED. LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES ARE EXCLUDED TO THE EXTENT EXCLUSION  
IS PERMITTED BY LAW. Some states or countries do not allow limitations on how long an implied warranty lasts, and some states or countries do not  
allow the exclusion or limitation of incidental or consequential damages, so the above limitation and exclusion may not apply to you. This warranty gives  
you specific legal rights and you may also have other rights which vary from state to state and country to country.  
OUR PRODUCT  
VANGUARDE  
Major Parts Warranty*  
Parts & Labor*  
3/LC Engine  
WARRANTY PERIOD  
3 years  
2 years  
2 years  
Consumer and Commercial Use  
*
Note the following special warranty periods: For purposes of this warranty policy, Parts and Labor coverage is 2 years. Major parts only  
coverage is extended to through the third year of operation. Major Parts Warranty (M.P.W.) covers but is not limited to or exclusive to cylinder  
block, cylinder head, crankshaft, camshaft, gears, pistons, rods, flywheel, flywheel housing, oil pump, fan, pulleys, mechanical governor,  
intake manifold, oil pan. M.P.W. does not cover and is not limited to piston rings, replaceable bearings, water pump, any electrical component,  
valve train components, accessory parts, seals, gaskets, carburetors, exhaust manifold, hoses, all fuel system components, injectors,  
injection pump, turbocharger, muffler, any filters, radiator, thermostat, spark plugs, glow plugs, fuel transfer pumps. The warranty period begins  
on the date of purchase by the first retail consumer or commercial end user, and continues for the period of time stated in the table above.  
NO WARRANTY REGISTRATION IS NECESSARY TO OBTAIN WARRANTY ON B&S ENGINES. SAVE YOUR PROOF OF PURCHASE  
RECEIPT. IF YOU DO NOT PROVIDE PROOF OF THE INITIAL PURCHASE DATE AT THE TIME WARRANTY SERVICE IS REQUESTED,  
THE MANUFACTURING DATE OF THE PRODUCT WILL BE USED TO DETERMINE THE WARRANTY PERIOD.  
ABOUT YOUR ENGINE WARRANTY  
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19  

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