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 6000 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, initial trouble shooting
checks should be made; refer to the MIL section under
Troubleshooting (page 66).
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 PTO, move the motion-control levers to
the neutral-locked position, and set the parking brake.
2. Stop 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. Stop the engine, remove the key, and wait for all moving
parts to stop before leaving the operating position.
5. Close the fuel-shutoff valve under the seat (Figure 56).
G008963
1. Fuel filter
2. Hose clamp
6. Squeeze the ends of the hose clamps together and slide
them away from the filter (Figure 56).
7. Remove the filter from the fuel lines.
8. Install a new filter and move the hose clamps close to
the filter (Figure 56).
9. Open the fuel-shutoff valve.
Note: It is important to reinstall 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 serviceable. 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.

Servicing the Fuel Tank

Do not attempt to drain the fuel tank. Ensure that an
Authorized Service Dealer drains the fuel tank.
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Figure 56
3. Fuel line