Fuel System Maintenance; Servicing The Water Separator; Bleeding The Fuel System - Toro 30534 Operator's Manual

Fuel System
Maintenance
Note: Refer to Adding Fuel for proper fuel
recommendations.
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 to the bottom
of the filler neck.
• 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.

Servicing the Water Separator

Service Interval: Every 400 hours
Drain the water or other contaminants from the water
separator (Figure 47) daily. Replace the 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 (Figure 47).
Figure 47
1. Water separator drain plug
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.

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 and secure it with the prop rod.
3. Open the air bleed screw on the fuel injection pump
(Figure 48) with a 12 mm wrench.
1. Bleed screw
4. Turn the key in the ignition switch to the On position.
The electric fuel pump will begin operation, thereby
forcing air out around the air bleed screw. Leave the
key in the On position until a solid stream of fuel flows
out around the screw.
5. Tighten the screw and turn the key to the Off position.
Note: Normally, the engine should start after the above
bleeding procedures are followed. However, if engine does
not start, air may be trapped between injection pump and
injectors; refer to Bleeding Air from the Injectors.
45
Figure 48