Checking The Fuel Lines And Connections; Bleeding The Fuel System; Bleeding Air From The Injectors - Toro Groundsmaster 7200 Series Operator's Manual

Checking the Fuel Lines
and Connections
Service Interval: Every 400 hours
Inspect the fuel lines for deterioration, damage,
chaffing, or loose connections.

Bleeding the Fuel System

1. Park the machine on a level surface. Ensure
that the fuel tank is at least half full.
2. Unlatch and raise the hood.
3. Place a rag under the air-bleed screw on the
fuel-injection pump and open it
Figure 36
1. Fuel-injection-pump bleed screw
4. Turn the ignition key to the O
Note:
The electric fuel pump begins operation,
thereby forcing air out at the air-bleed screw.
CAUTION
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 O
stream of fuel flows out around the screw.
6. Tighten the screw and turn the key to the O
position.
Note:
Normally, the engine should start after
you bleed the fuel system. However, if the
(Figure 36).
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position.
N
position until a solid
N
FF
engine does not start, air may be trapped
between injection pump and injectors; refer to
Bleeding Air from the Injectors (page
Bleeding Air from the
Injectors
Note:
Use this procedure only if you purged the
fuel system through normal priming procedures and
the engine does not start; refer to
System (page 39).
1. Place a rag under the pipe connection coming
from the injection pump to the No. 1 injector
nozzle as illustrated in
1. Pipe connection from the injection pump to the No. 1
injector nozzle
2. Move the throttle to the F
3. Turn the ignition key to the S
watch the fuel flow around the connector.
CAUTION
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 O
6. Repeat this procedure for the remaining nozzles.
39
39).
Bleeding the Fuel
Figure 37.
Figure 37
position.
AST
position and
TART
position.
FF
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