Bleeding Air From The Injectors - Toro 30383 Operator's Manual

1. Fuel injection pump bleed screw
4. Turn the key in the ignition switch to the Run
position.
The electric fuel pump will begin operation, thereby
forcing air out around the air bleed screw.
The engine may start during this procedure.
Moving fans and belts in a running engine can
severely injure you or bystanders.
Keep hands, fingers, loose clothing/jewelry,
and hair away from the engine fan and belt
during this procedure.
5. Leave the key in the On position until a solid stream
of fuel flows out around the screw.
6. Tighten the screw and turn key to the Off position.
Note: Normally, the engine should start after 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.

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 engine will not start; refer to Bleeding
the Fuel System.
1. Place a rag under the pipe connection coming from
the injection pump to the No. 1 injector nozzle as
illustrated in Figure 38.
Figure 37
1. Pipe connection from the injection pump to the No. 1 injector
nozzle
2. Move the throttle to the Fast position.
3. Turn the ignition key the Start position and watch
the fuel flow around the connector.
The engine may start during this procedure.
Moving fans and belts in a running engine can
severely injure you or bystanders.
Keep hands, fingers, loose clothing/jewelry,
and hair away from the engine fan and belt
during this procedure.
4. Tighten the pipe connector securely when it attains
a solid flow.
5. Turn the key to the Off position.
6. Repeat this procedure for the remaining nozzles.
33
Figure 38