Replacing The Fuel Filter - Toro 74251 Operator's Manual

Figure 45
1. Spark plug wire
Checking the Spark Plug
1. Clean the electrodes by scraping or with a wire brush
to remove carbon deposits and wetness (Fig. 46).
2. Inspect the spark plug (Fig. 46).
Important Always replace the spark plug(s) when it
has a black coating, worn electrodes, an oily film, or
cracks.
3. Check the gap between the center and side electrodes
(Fig. 46). Bend the side electrode (Fig. 46) if the gap is
not correct.
2
1
Figure 46
1. Center electrode insulator
2. Side electrode
Installing the Spark Plug
1. Install the spark plug(s). Make sure that the air gap is
set correctly.
2. Tighten the spark plug(s) to 17 ft-lb (23 N m).
3. Push the wire(s) onto the spark plug(s) (Fig. 45).
2
1
m–5038
2. Spark plug
3
0.030 inch
(0.76 mm)
m–3215
3. Air gap (not to scale)
(s)
38

Replacing the Fuel Filter

Replace the fuel filter after every 200 operating hours or
yearly, whichever occurs first.
Never install a dirty filter if it is removed from the fuel
line.
1. Allow the machine to cool down.
2. Disengage the PTO, move the motion control levers to
the neutral locked position and set the parking brake.
3. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
4. Close the fuel shut–off valve (Fig. 47).
5. Squeeze the ends of the hose clamps together and slide
them away from the filter (Fig. 47).
6. Remove the filter from the fuel lines.
7. Install a new filter and move the hose clamps close to
the filter (Fig. 47).
8. Wipe up any spilled fuel.
9. Open fuel shut-off valve (Fig. 47).
3
Figure 47
1. Filter
2. Hose clamp
2
1
2
m–6841
3. Fuel shut-off valve