Fuel System Maintenance; Draining The Fuel Tank; Checking The Fuel Lines And Connections; Bleeding The Fuel System - Toro LT3340 Operator's Manual

Fuel System
Maintenance
DANGER
Under certain conditions, fuel and fuel vapors
are highly flammable and explosive. A fire or
explosion from fuel can burn you and others
and can cause property damage.
• Fill the fuel tank outdoors, in an open area,
when the engine is off and is cold. Wipe up
any fuel that spills.
• Do not fill the fuel tank completely full. Add
fuel to the fuel tank until the level is 25 mm
(1 inch) below the top of the tank, not the
filler neck. This empty space in the tank
allows the fuel to expand.
• Never smoke when handling fuel, and stay
away from an open flame or where fuel
fumes may be ignited by a spark.
• Store fuel in a clean, safety-approved
container and keep the cap in place.

Draining the Fuel Tank

Service Interval: Every 800 hours
Before storage
Drain and clean the fuel tank if the fuel system
becomes contaminated or if the machine is to be
stored for an extended period. Use clean fuel to flush
out the tank.
Checking the Fuel Lines
and Connections
Service Interval: Every 400 hours/Yearly (whichever
comes first)
Check the fuel lines and connections. Inspect them
for deterioration, damage, or loose connections.

Bleeding the Fuel System

You must bleed the fuel system before starting the
engine if any of the following situations have occurred:
•
Initial start up of a new machine.
•
Engine has ceased running due to lack of fuel.
•
Maintenance has been performed upon fuel
system components; i.e., filter replaced, separator
serviced, etc.
DANGER
Under certain conditions, fuel and fuel vapors
are highly flammable and explosive. A fire or
explosion from fuel can burn you and others
and can cause property damage.
• Use a funnel and fill the fuel tank outdoors,
in an open area, when the engine is off and
is cold. Wipe up any fuel that spills.
• Do not fill the fuel tank completely full. Add
fuel to the fuel tank until the level is 6 to 12
mm (1/4 to 1/2 inches) below the bottom
of the filler neck. This empty space in the
tank allows the fuel to expand.
• Never smoke when handling fuel, and stay
away from an open flame or where fuel
fumes may be ignited by a spark.
• Store fuel in a clean, safety-approved
container and keep the cap in place.
1. Park the machine on a level surface and ensure
that the fuel tank is at least half full.
2. Open the hood.
3. Turn the key in the ignition switch to the ON
position and crank the engine. The mechanical
pump will suck fuel out of the tank, fill the fuel
filter and fuel hose and force the air into the
engine. This could take some time to fully purge
all the air out of the system and the engine might
fire erratically until all air is purged out. When all
air is purged and the engine is running smoothly,
it should be run for a few minutes to ensure that
it is fully purged.

Replacing the Fuel Filter

Service Interval: Every 500 hours
Important:
Replace the fuel filter canister
periodically to prevent wear of the fuel injection
pump plunger or the injection nozzle, due to dirt
in the fuel.
1. Place a clean container under the fuel filter
canister (Figure
2. Clean the area where the filter canister mounts.
36
47).