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

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) is illuminated. The
MIL is the red light located in the right console panel.
Once the MIL illuminates, perform initial trouble
shooting checks. Refer to the MIL section under
Troubleshooting (page
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) (more often in dirty or
dusty conditions).
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 set 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. Allow the machine to cool down.
4. Close the fuel-shutoff valve under the seat
(Figure 54).
71).
EUTRAL
1. Fuel filter
2. Hose clamp
5. Squeeze the ends of the hose clamps together
and slide them away from the filter
6. Remove the filter from the fuel lines.
7. Install a new filter and move the hose clamps
close to the filter
8. Open the fuel-shutoff valve.
Note:
Install the fuel-line hoses and secure with
plastic ties the same as they were originally installed
at the factory to keep the fuel line away from
components that could cause fuel line damage.
Servicing the
High-Pressure Fuel Filter
Do not attempt to service the high-pressure fuel filter.
The high-pressure filter is integrated within the fuel
pump module. The fuel filter and other components
inside the fuel pump module are not servicable. Do
not attempt to open the fuel pump module.
Ensure that an Authorized Service Dealer replaces
the fuel pump module with the high-pressure fuel filter.
-
LOCK

Servicing the Fuel Tank

Do not attempt to drain the fuel tank. Ensure that an
Authorized Service Dealer drains the fuel tank.
43
Figure 54
3. Fuel line
(Figure
(Figure 54).
g008963
54).