Checking The Spark Arrester; Fuel System Maintenance; Servicing The Electronic Fuel-Injection System; Replacing The Low-Pressure Fuel Filter - Toro Z Master Professional 5000 Series Operator's Manual

Checking the Spark
Arrester
For Models with a Spark Arrester
Service Interval: Every 50 hours
WARNING
Hot exhaust system components may ignite
fuel vapors even after you shut off the engine.
Hot particles exhausted during engine
operation may ignite flammable materials.
Fire may result in personal injury or property
damage.
Do not fuel or run the engine unless a spark
arrester is installed.
1. Shut off the engine, wait for all moving parts to
stop, remove the key, and engage the parking
brake.
2. Wait for the muffler to cool.
3. If there are any breaks in the screen or welds
are observed, replace the arrester.
4. If the screen is plugged, remove the arrester
and shake loose particles out of the arrester,
and clean the screen with a wire brush (soak in
solvent if necessary).
5. Install the arrester on the exhaust outlet.
Fuel System
Maintenance
WARNING
Fuel-system components are under high
pressure. The use of improper components
can result in system failure, gasoline leakage,
and possible explosion.
Use only approved fuel lines and fuel filters.
Servicing the Electronic
Fuel-Injection System
This machine contains an electronic fuel-injection
system. It controls the fuel flow under different
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
malfunction-indicator light (MIL) illuminates. The MIL
is the red light located in the right console panel.
Once the MIL illuminates, make initial troubleshooting
checks; refer to the MIL section under
(page 71).
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/Yearly (whichever
comes first)
The fuel filter is located near the engine on the front
or rear side of the engine.
1. Disengage the blade-control switch (PTO), move
the motion-control levers to the N
position, and engage the parking brake.
2. Shut off the engine, remove the key, and wait
for all moving parts to stop before leaving the
operating position.
3. Wait for the machine to cool down.
4. Close the fuel-shutoff valve under the seat
(Figure 59).
44
Troubleshooting
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EUTRAL LOCK