Replacing The Fuel Filter; Tire Pressure; Leveling The Mower From Side-To-Side - Toro 74502 Operator's Manual

Replacing the Fuel Filter

Replace the fuel filter after every 100 operating hours or
yearly, whichever occurs first.
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 key.
2. Close the fuel shut-off valve located under the front of
the fuel tank.
3. Squeeze the ends of the hose clamps together and slide
them away from the filter (Fig. 34).
4. Remove the filter from the fuel lines.
5. Install a new filter and move the hose clamps close to
the filter (Fig. 34).
6. Open the fuel shut-off valve.

Tire Pressure

Maintain the air pressure in the front and rear tires as
specified. Uneven tire pressure can cause uneven cut.
Check the pressure at the valve stem after every 50
operating hours or monthly, whichever occurs first
(Fig. 35). Check the tires when they are cold to get the most
accurate pressure reading.
Rear Tires: 13 psi (90 kPa)
Front Tires (castor wheels): 35 psi (139 kPa)
Figure 35
1. Valve stem
Leveling the Mower from
Side-to-Side
The mower blades must be level from side to side. Check
the side-to-side level any time you install the mower or
when you see an uneven cut on your lawn.
1. Position the mower on a flat surface. Disengage the
PTO, set the parking brake, stop the engine, and remove
the key. Disconnect the spark plug wire(s) from the
spark plug(s).
2. Check the air pressure of all four tires. If needed, adjust
to the recommended inflation; refer to Tire Pressure,
page 28.
3. Set the height-of-cut at 3 in. (76 mm).
4. Carefully rotate the blade(s) from side to side (Fig. 36).
Measure between the outside cutting edges and the flat
surface (Fig. 36). If both measurements are not within
3/16 in. (4.75 mm), an adjustment is required; refer to
steps 5 and 6.
2
3
1. Blades side to side
2. Outside cutting edges
5. Remove the hairpin cotter and washer from the leveling
bracket (Fig. 37). To level the blade(s), reposition the
leveling bracket(s) in a different hole and install the
1
washer and hairpin cotter. (Fig. 37). A front hole lowers
the blade height and a rear hole raises its height. Adjust
both sides as required.
m–1872
1. Hairpin cotter and washer
2. Leveling bracket
6. Check the front-to-rear blade slope; refer to Adjusting
the Front-to-Rear Blade Slope, page 29.
28
2
1
Figure 36
3. Measure here
2
3
1
Figure 37
3. Front hole
4. Rear hole
3
1078
4
m–5177