Briggs & Stratton Vanguard 490000 Manual Del Operario página 8

Note: If the engine does not start after repeated attempts, contact you local dealer or go
to VanguardEngines.com or call 1-800-999-9333 (in USA).
Stop Engine
WARNING
Fuel and its vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.
• Do not choke the carburetor, if equipped, to stop the engine.
1. With the throttle control in the SLOW position, turn the electric start switch (D, Figure
8) to the OFF position. Remove the key and keep in a safe place out of the reach of
children.
2. After the engine stops, move the fuel shut-off (A, Figure 8), if equipped, to the
CLOSED position.
Maintenance
NOTICE If the engine is tipped during maintenance, the fuel tank, if mounted on
engine, must be empty and the spark plug side must be up. If the fuel tank is not empty
and if the engine is tipped in any other direction, it may be difficult to start due to oil or
gasoline contaminating the air filter and/or the spark plug.
WARNING
When performing maintenance that requires the unit to be tipped, the fuel tank, if mounted
on the engine, must be empty or fuel can leak out and result in a fire or explosion.
We recommend that you see any Briggs & Stratton Authorized Service 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.
WARNING
Unintentional sparking can result in fire or electric shock.
Unintentional start-up can result in entanglement, traumatic amputation, or
laceration.
Fire hazard
Before performing adjustments or repairs:
• Disconnect the spark plug wire and keep it away from the spark plug.
• 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 of the same design and installed in the same position
as the original parts. Other parts may not perform as well, may damage the unit, and
may result in injury.
• Do not strike the flywheel with a hammer or hard object because the flywheel may
later shatter during operation.
When testing for spark:
• Use approved spark plug tester.
• Do not check for spark with spark plug removed.
Emissions Control Service
Maintenance, replacement, or repair of the emissions control devices and systems
may be performed by any off-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 Control Statements.
Maintenance Schedule
Every 8 Hours or Daily
• Check engine oil level
• Clean area around muffler and controls
Every 100 Hours or Annually
8
1 2
• Clean or change air filter
• Change engine oil and filter
• Replace spark plugs
• Check muffler and spark arrester
Every 250 Hours or Annually
• Check valve clearance. Adjust if necessary.
Every 400 Hours or Annually
2
• Change air filter
• Replace fuel filter
1
• Service air cooling system
1
• Clean oil cooler fins
Every 600 Hours
• Change safety filter, if equipped
1
In dusty conditions or when airborne debris is present, clean more often.
2
Every third air filter change, replace the inner safety filter (if equipped).
Electronic Fuel Injection (EFI) System
The EFI System monitors engine temperature, engine speed, and battery voltage for engine
starting and warm up. There are no adjustments on the system. If starting or operation
problems occur, contact a Briggs & Stratton Authorized Service Dealer.
NOTICE Make sure to follow the steps below or the EFI System could be damaged.
• Never start the engine if the battery cables are loose.
• Turn the key to the off position before disconnecting, removing and or installing the
battery.
• Never use a battery charger to start the engine.
• Never disconnect the battery cables while the engine is running.
• When connecting the battery cables, first connect the positive (+) cable and then
connect the negative (-) cable to the battery.
• When charging the battery, turn the ignition switch to the off position and disconnect
the negative (-) battery cable from the battery.
• Do not spray water directly on the Electronic Control Module.
Electronic Fuel Management System
The Electronic Fuel Management System monitors engine temperature, engine speed,
and battery voltage to adjust the choke during engine starting and warm up. There are no
adjustments on the system. If starting or operation problems occur, contact an Authorized
Briggs & Stratton Dealer.
NOTICE Make sure to follow the steps below or the Electronic Fuel Management
System could be damaged.
• Never start the engine if the battery cables are loose.
• Turn the key to the off position before disconnecting, removing and / or installing the
battery.
• Never use a battery charger to start the engine.
• Never disconnect the battery cables while the engine is running.
• When connecting the battery cables, first connect the positive (+) cable and then
connect the negative (-) cable to the battery.
• When charging the battery, turn the ignition switch to the off position and disconnect
the negative (-) battery cable from the battery.
• Do not spray water directly on the Electronic Control Unit.
Carburetor and Engine Speed
Never make adjustments to the carburetor or engine speed. The carburetor was set at the
factory to operate efficiently under most conditions. Do not tamper with the governor spring,
linkages, or other parts to change the engine speed. If any adjustments are required contact
a Briggs & Stratton Authorized Service Dealer for service.
NOTICE The equipment manufacturer specifies the maximum speed for the engine
as installed on the equipment. Do not exceed this speed. If you are unsure what the
equipment maximum speed is, or what the engine speed is set to from the factory,
contact a Briggs & Stratton Authorized Service Dealer for assistance. For safe and
proper operation of the equipment, the engine speed should be adjusted only by a
qualified service technician.
VanguardEngines.com