Fuel System Maintenance; Fuel Tank; Fuel Lines And Connections; Servicing The Water Separator - Toro 30856 Operator's Manual

Fuel System
Maintenance
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 1/4 to
1/2 in. (6 to 13 mm) 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.

Fuel Tank

Every 800 hours
Before storage
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
Yearly
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: Every 400 hours
Drain water or other contaminants from water separator
(Figure 38) daily. Replace filter canister after every 400
hours of operation.
1. Place a clean container under the fuel filter.
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.

Bleeding the Fuel System

1. Park the machine on a level surface. Make sure that
the fuel tank is at least half full.
2. Unlatch and raise the hood.
3. Open the air bleed screw on the fuel injection pump
(Figure 39).
36
Figure 38