Bleeding Air From The Injectors; Cleaning The Engine Cooling System - Toro 30826 Operator's Manual

Replacing the Fuel Prefilter
Replace the fuel prefilter, located on the inside of the frame
rail below the water separator, after every 400 operating
hours or yearly, whichever occurs first.
1. Remove the screw securing the filter to the frame rail.
2. Clamp both fuel lines that connect to the fuel filter so
that fuel cannot drain when the lines are removed.
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 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.
3. Loosen the hose clamps at both ends of the filter
(Fig. 41) and pull the fuel lines off of the filter.
2
1
Figure 41
1. Fuel prefilter
2
2. Hose clamps
36
4. Remove the clamp from the fuel filter and slide it onto
the replacement filter. Push the fuel lines onto the
replacement fuel filter and secure them with the hose
clamps. Be sure that the arrow on the side of the filter
points toward the injection pump.
5. Secure the filter to the frame rail with the previously
removed screw.

Bleeding Air from the Injectors

Note: This procedure should be used only if the fuel system
has been purged of air through normal priming procedures
and the engine will not start; refer to Bleeding the Fuel
System, page 21.
1. Loosen the pipe connection to the No. 1 nozzle and
holder assembly.
1
Figure 42
1. Fuel injectors
2. Move the throttle to the Fast position.
3. Turn the key in the key switch to the Start position and
watch the fuel flow around the connector. Turn the key
to the Off position when solid flow is observed.
4. Tighten the pipe connector securely.
5. Repeat the procedure on the remaining nozzles.
Cleaning the Engine Cooling
System
Remove debris from the oil cooler and radiator daily. Clean
them more frequently in dirty conditions.