Fuel Filter; Air Cleaner - Toro 74590 Operator's Manual

Fuel Filter

Service Interval/Specification
Replace the fuel filter after every 100 operating hours or
yearly, whichever occurs first.
Replacing the Fuel Filter
The best time to replace the fuel filter (Fig. 31) is when the
fuel tank is empty. Never install a dirty filter if it is
removed from the fuel line.
1. Disengage the PTO, set the parking brake, stop the
engine, and remove the ignition key.
2. Turn the fuel shut-off valve off (Fig. 32).
1
Figure 32
1. Fuel shut-off valve
3. Open the hood.
4. Squeeze the ends of the hose clamps together and slide
them away from the filter (Fig. 31).
5. Remove the filter from the fuel lines.
6. Install a new filter and move the hose clamps close to
the filter.
7. Close the hood.

Air Cleaner

Service Interval/Specification
Foam Element: Clean and oil after every 25 operating
hours, or yearly, whichever occurs first.
Paper Element: Replace after every 100 operating hours or
yearly, whichever occurs first.
Note: Service the air cleaner more frequently (every few
hours) if operating conditions are extremely dusty or sandy.
Removing the Foam and Paper Elements
1. Disengage the PTO, set the parking brake, stop the
engine, and remove the ignition key.
2. Open the hood.
3. Clean around the air cleaner to prevent dirt from getting
into the engine and causing damage. Unscrew the knobs
and remove the air cleaner cover (Fig. 33).
1. Knob
4. Lift out the paper cartridge and the foam element
(Fig. 34).
2
1. Foam element
28
1
2
Figure 33
2. Air cleaner cover
1
Figure 34
2. Paper element