Toro 72907 - Checking the Spark Arrester; Fuel System Maintenance; Servicing the Electronic Fuel-Injection System; Replacing the Low-Pressure Fuel Filter

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Figure 64
Checking the Spark
Arrester
For Machines with a Spark
Arrester
Service Interval : Every 50 hours
W ARNING
Hot exhaust-system components may ignite
fuel vapors even after you shut off the engine.
Hot particles exhausted during engine
operation may ignite ammable materials,
resulting in personal injury or property
damage.
Do not refuel or run the engine unless the
spark arrester is installed.
1. Park the machine on a level surface, disengage
the PT O, and engage the parking brake.
2. Shut of f the engine, remove the key , and wait
for all moving parts to stop before leaving the
operating position.
3. W ait for the muf er to cool.
4. If you see any breaks in the screen or welds,
replace the arrester .
5. If the screen is plugged, remove the arrester ,
shake loose particles out of the arrester , and
clean the screen with a wire brush (soak the
screen in solvent if necessary).
6. Install the arrester on the exhaust outlet.
Fuel System
Maintenance
W ARNING
Fuel-system components are under high
pressure. The use of improper components
can result in system failure, fuel leakage, and
possible explosion.
Use only approved fuel lines and fuel lters.
Servicing the Electronic
Fuel-Injection System
This machine contains an electronic fuel-injection
system. It controls the fuel ow under dif ferent
operating conditions.
The electronic-control unit (ECU) continuously
monitors the operation of the EFI system.
If a problem or fault within the system is detected, the
LED status light illuminates. The MIL is the red light
located on the right side of the hour meter .
Once the light illuminates, make initial troubleshooting
checks; refer to the LED status light section under
T roubleshooting ( page 80 ) .
If these checks do not correct the problem, further
diagnosis and servicing by an Authorized Service
Dealer is necessary .
Replacing the
Low-Pressure Fuel Filter
Service Interval : Every 200 hours/Y early (whichever
comes rst)
The fuel lter is located near the engine on the front
or rear side of the engine.
1. Park the machine on a level surface, disengage
the blade-control switch, and engage the parking
brake.
2. Shut of f the engine, remove the key , and wait
for all moving parts to stop before leaving the
operating position.
3. W ait for the machine to cool down.
4. Close the fuel-shutof f valve under the seat
( Figure 65 ).
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