Briggs & Stratton VANGUARD 430000 Instrucciones De Mantenimiento página 6

Stop engine.
Place a drain pan under fuel filter and loosen drain plug
approximately 1 turn.
Water should drain. If necessary, operate priming
Ï
pump to drain water, but only until fuel flows from
filter.
Ì
Tighten drain plug . Bleed air from fuel line.
Start engine. Ensure warning light goes out. Check for
leaks.
Ë
Disconnect sensor wire . Remove drain plug
Í
discard O ring .
Î
Remove fuel filter with filter wrench.
Screw new filter on by hand until gasket contacts
housing. Then tighten 1/3 turn more.
Ì
Install drain plug with new O Ring
Ë
sensor wire .
Bleed air from fuel line. Start engine and check for
leaks.
If engine is running normally, this check and
adjustment may be omitted.
With the No. 1 piston at Top Dead Center (TDC) of
compression stroke, check valve clearances for cylin
ders shown in chart below. Using a wrench
Ñ
nut, adjust with screw driver . Determine clearance
Ò
using a feeler gauge . Rotate crankshaft 360
clockwise to check remaining valves. Adjust in same
order, if required.
Piston Piston
No. 1 Piston at Int
TDC of compres TDC of compres
Exh
sion stroke.
Rotate crankshaft Int
360 clockwise 360 clockwise.
Exh
Valve clearances (cold):
Intake valve (Int) . . . . . . . . . . . . .
Exhaust valve (Exh) . . . . . . . . . .
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 (45
in lbs)
Ë
Check the condition of fan belt and replace if worn or
damaged.
apply 98 N or 22 lbs of force at
Ì
center of span between fan and alternator. Mea
Í
surement should be 10-12 mm (3/8-1/2 in) of belt
movement.
by loosening the 2 bolts ( A
and B of alternator. Place a handle
)
object between the alternator and engine cylinder
Ì block and move alternator toward outside of engine.
Stop when fan belt conforms to specified tension listed
above. Tighten the alternator bolts to maintain tension,
and remove handle. Check tension again, if within
specifications, torque bolts.
A =19 Nm or 170 in. lbs.
B =61 Nm or 45 ft. lbs.
Before every use, clean accumulated debris from
engine. To assure smooth operation, keep injector
Ì
and
pump linkage, springs and controls clean. Clean
muffler and manifold areas to remove all grass and
combustible debris.
Í
. Connect
Engine should be kept clean to re
duce risk of overheating and ignition
of accumulated debris. Clean engine
when engine is cold.
8
Do not use water to clean engine parts. Water could
contaminate fuel system. Use a brush or dry cloth.
Ð
to hold
If engine muffler is equipped with spark arrestor screen
assembly, remove for cleaning and inspection every 50
hours. Replace if damaged.
Cylinder
1 2 3
If engine is hard to start or acceleration is uneven,
D D
check control operation and adjust.
D D
D
Ì
D
0.2mm (0.008in)
0.2mm (0.008in)
Ì Ì Ì Ì Ì Ì Ì Ì
9
Move equipment throttle control in SLOW or IDLE
position.
Ë
If lever does not contact idle speed screw
casing clamp screw.
Adjust throttle control cable to allow speed control lever
to contact idle speed screw.
Tighten casing clamp screw.
Î
or similar
Í
Ë
Ì
, loosen
4
Move equipment throttle control in SLOW or IDLE
position.
Í
Loosen lock nut .
Ì
Adjust idle speed screw to obtain equipment
manufacturer's specified idle speed.
Tighten lock nut
Re adjust throttle control if required
Engines stored over 30 days need special attention.
Change oil. See .
Remove glow plugs and pour about 3 cc of engine oil
into each cylinder. Replace glow plugs and crank
slowly to distribute oil.
Clean engine of surface debris, chaff or grass.
Store in a clean and dry area.
DO NOT store near a stove, furnace or
water heater which uses a pilot light or
any device that can create a spark.
See an Authorized Briggs & Stratton 3/LC Service
Dealer. Each one carries a stock of Genuine Briggs &
Stratton Parts and is equipped with special service
tools. Trained mechanics assure expert repair service
on all B&S engines.
When you purchase equip
ment powered by a B&S en
gine, you are assured of highly
skilled, reliable service at more
than 30,000 Authorized Ser
vice Dealers worldwide, inclu
ding more than 5,000 Master
Service Technicians. Look for
these signs wherever B&S
3/LC service is offered.
You may locate your nearest Authorized Briggs &
Stratton 3/LC Service Dealer by viewing our locator
map at www.briggsandstratton.com.
An illustrated shop manual includes Theories of
Operation," common specifications and detailed
information covering adjustment, tune up and repair of
Briggs & Stratton 3/LC engines. Order the shop manual
from an Authorized Briggs & Stratton Service Dealer.
Oil (48 oz.) . . . . . . . . . . . . . . . . . . . . . . . .
Oil filter . . . . . . . . . . . . . . . . . . . . . . . . . .
Air filter . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel filter element . . . . . . . . . . . . . . . . . . .
2 7
100028
820314
820263
820311