Toro 25430A Operator's Manual page 44

3. Install the secondary fuel filter and fuel-water separator
as follows:
A. Apply a thin film of clean fuel to the seal on the
fuel-filter element.
B. Align the new secondary filter element to the filter
adapter (Figure 53).
C. Rotate the secondary filter element until the seal
contacts the filter adapter, then rotate the filter
element an additional 3/4 turn.
D. Slip the new O-ring over the water sensor (Figure
53).
E. Align the water sensor to the bottom of the
secondary fuel filter (Figure 53).
F. Firmly grasp the secondary filter element, and
rotate the water sensor clockwise until it is hand
tight (Figure 53).
4. Bleed the fuel system; refer to Bleeding the Fuel System
(page 44).
5. Start the engine and check for leaks at the fuel filter.
6. Install the left side panel; refer to Installing the Side
Panels (page 36).
Replacing the Primary Fuel Filter
Service Interval: Every 500 hours
1. Remove the left side panel; refer to Removing the Side
Panels (page 35).
2. Place clean rags under the primary fuel filter.
3. Loosen the hose clamps and separate the primary fuel
filter from the fuel hoses (Figure 53).
Note: Do not remove the hose clamps from the hoses.
Note: Discard the fuel filter.
4. Align the new primary fuel filter to the hoses with the
arrow printed on the filter pointing forward (Figure 53).
5. Slip the hoses over the hose fitting of the primary fuel
filter, and tighten the hose clamps (Figure 53).
6. Bleed the fuel system; refer to Bleeding the Fuel System
(page 44).
7. Start the engine and check for leaks at the fuel filter.
8. Install the left side panel; refer to Installing the Side
Panels (page 36).
Bleeding the Fuel System
WARNING
The fuel system is under high pressure. Bleeding
the system without proper precautions and training
could result in injury to you from injected fluid or
fire or explosion.
Read the Engine Owner's Manual for the proper
bleeding procedure or contact your Authorized Toro
Service Dealer.
Note: Remove air from the fuel system whenever you do any
of the following:
•
Drain the fuel-water separator
•
Replace the fuel filter
•
Run the engine until the fuel tank is empty
1. Ensure that both the engine and the exhaust system
are cool.
2. Ensure that the fuel tank is 1/4 full.
3. Rotate the battery-disconnect switch clockwise to the
On position.
4. Locate the priming button on the top of the filter
adapter for the secondary fuel filter (Figure 54).
1. Priming button
5. Press down and release the priming button repeatedly
until you feel resistance (Figure 54).
6. Start the engine; refer to Starting the Engine (page 25).
Note: If the engine does not start after priming the
fuel system and making several attempts to start the
engine, bleed the high-pressure fuel lines; refer to your
engine owner's manual or contact your Authorized
Toro Service Dealer for assistance.
44
Figure 54
2. Filter adapter