Fuel System Maintenance; Servicing The Electronic Fuel Injection System; Servicing The Fuel Filters - Toro 74253 Operator's Manual

Figure 40
1. Canter electrode insulator
2. Side electrode
2. Check the gap between the center and side electrodes
(Figure 40). Bend the side electrode (Figure 40) if
the gap is not correct.
Installing the Spark Plug
1. Install the spark plug(s). Make sure the air gap is set
correctly.
2. Tighten the spark plug(s) to 16 ft.-lb (22 N⋅m).
3. Push the wire(s) onto the spark plug(s) (Figure 39).
3. Air gap (not to scale)
Fuel System
Maintenance
Servicing the Electronic Fuel
Injection System
This machine contains an electronic fuel injection
system. It controls the fuel flow under different
operating conditions.
Checking the Malfunction Indicator
Light
If the malfunction indicator light (MIL) illuminates,
during operation, the electronic control unit (ECU) has
detected a problem or fault in the direct fuel injection
(DFI) system.
Once the MIL illuminates, initial trouble shooting checks
should be made. Refer to Troubleshooting , page 59,
under the MIL section.
If these checks do not correct the problem, further
diagnosis and servicing by an Authorized Service Dealer
is necessary.

Servicing the Fuel Filters

Replacing the Fuel Filter
Service Interval: Every 400 hours/Yearly (whichever
comes first) (more often in dirty or
dusty conditions).
Ensure that an Authorized Service Dealer replaces the
fuel filter and any components for the fuel system.
Use of improper components can result in
system failure, fuel leakage and possible
explosion.
• Ensure that an Authorized Service Dealer
replace the fuel filter and any components
for the fuel system.
• Use only approved fuel lines, hose clamps
and fuel filters for high pressure systems.
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