Fuel System Maintenance; Bleeding The Fuel System; Replacing The Fuel Filter - Toro LT2240 Operator's Manual

Fuel System
Maintenance
DANGER
Under certain conditions, diesel 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 25
mm (1 inch) 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 a spark
may ignite fuel fumes.
• Store fuel in a clean, safety-approved
container and keep the cap in place.

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.
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 O
position and crank the engine.
Note:
The mechanical pump sucks 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.
If required, a mechanical priming pump is
provided at the mechanical fuel pump.

Replacing the Fuel Filter

Service Interval: Every 400 hours
Important:
periodically to prevent wear of the fuel injection
pump plunger or the injection nozzle, due to dirt
in the fuel.
1. Prepare the machine for maintenance; refer to
Preparing the Machine for Maintenance (page
35).
2. Unlatch and open the hood.
3. Place a clean container under the fuel filter
canister
4. Use a hose pinch tool to pinch the inlet and
outlet filter hoses to prevent fuel flow in and out
of the filter.
5. Loosen the drain valve at the bottom of the filter
canister and open the vent screw at the top of
the canister mount and drain the fuel from the
filter.
1. Vent screw
N
6. Tighten the drain valve at the bottom of the filter
canister and close the vent screw at the top of
the canister mount.
7. Clean the area around the fuel filter and filter
head (Figure
43
Replace the fuel filter canister
(Figure 69).
Figure 68
2. Drain valve
69).
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