Cleaning Radiator And Screen - Toro 30631 Operator's Manual

4. Install the filter canister by hand until the gasket
contacts the mounting surface, then rotate an
additional 1 ⁄ turn.
2
Replacing the Fuel Pre Filter
Replace the fuel pre filter (Fig. 28), located between
the fuel tank and fuel pump after every 400 operating
hours or yearly, whichever occurs first.
1. Clamp both fuel lines that connect to the fuel
filter so fuel cannot drain when you remove the
lines.
2. Loosen the hose clamps at both ends of the filter
and pull the fuel lines off the filter.
1
Figure 28
1. Fuel pre filter
3. Slide hose clamps onto the ends of the fuel lines.
Push the fuel lines onto the fuel filter and secure
them with hose clamps. Be sure the arrow on the
side of the filter points toward the injection
pump.
Bleeding Air from 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 19.
1. Loosen the pipe connection to the No. 1 injector
nozzle and holder assembly at the injection pump
(Fig. 29).
1. No. 1 injector nozzle
2. Move the throttle to FAST.
3. Turn the key in the key switch to START and
watch fuel flow around the connector. Turn the
key to OFF when you observe solid flow.
4. Tighten the pipe connector securely.
5. Repeat the previous steps on the remaining
nozzles.

Cleaning Radiator and Screen

To prevent engine overheating, keep the screen and
radiator clean. Normally, check the screen and
radiator daily and, if necessary, clean any debris from
these parts. However, it will be necessary to check and
clean the screen and radiator frequently in extremely
dusty and dirty conditions.
Note: If the engine shuts off due to overheating, first
check the radiator and screen for an excessive buildup
of debris.
To thoroughly clean the radiator:
1. Remove the screen.
2. Working from the fan side of the radiator, either
spray the radiator with a water hose or blow with
compressed air.
3. After the radiator is thoroughly cleaned, clean
out debris that may have collected in the channel
at the radiator base.
27
1
Figure 29