Fuel System Maintenance; Fuel Tank; Fuel Lines And Connections; Servicing The Water Separator - Toro 03781 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.
• 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.

Fuel Tank

Every 800 hours—Drain and clean the fuel tank.
Before storage—Drain and clean the fuel tank.
Drain and clean the fuel tank every 800 hours. Also, drain and
clean the tank if fuel system becomes contaminated or if the
machine will be stored for an extended period of time. Use
clean fuel to flush out the tank.

Fuel Lines and Connections

Service Interval: Every 400 hours—Check the fuel lines and
connections.
Yearly—Check the fuel lines and connections.
Check the fuel lines and connections every 400 hours or
yearly, whichever comes first. Inspect them for deterioration,
damage, or loose connections.

Servicing the Water Separator

Service Interval: Before each use or daily—Drain water or
other contaminants from fuel filter/water
separator.
Every 400 hours—Replace the fuel filter canister.
Drain water or other contaminants from water separator daily.
Replace filter canister after every 400 hours of operation.
1. Place a clean container under the fuel filter(Figure 55).
2. Loosen the drain plug on the bottom of the filter
canister.
1. Water separator filter canister
3. Clean the area where the filter canister mounts.
4. Remove the filter canister and clean the mounting
surface.
5. Lubricate the gasket on the filter canister with clean oil.
6. Install the filter canister by hand until the gasket
contacts mounting surface, then rotate it an additional
1/2 turn.
7. Tighten the drain plug on the bottom of the filter
canister.

Fuel Pick up Tube Screen

The fuel pick up tube, located inside the fuel tank, is equipped
with a screen to help prevent debris from entering the fuel
system. Remove fuel pick up tube and clean screen as
required.
43
Figure 55