Replacing The Spark Plugs; Fuel System Maintenance; Replacing The Fuel Filter - Toro 07384 Operator's Manual

Replacing the Spark Plugs

Service Interval: Every 100 hours/Yearly (whichever
comes first) Replace the spark plugs
if necessary.
Type: NGK-R BKR5E (or equivalent)
Air Gap: 0.81 mm (0.032 inch)
Important:
A cracked, fouled, dirty, or
malfunctioning spark plug must be replaced. Do
not sand-blast, scrape, or clean electrodes by
using a wire brush because grit may eventually
release from the plug and fall into the cylinder.
The result is usually a damaged engine.
1. Clean the area around the spark plug so that
foreign matter cannot fall into the cylinder when
you remove the spark plug.
2. Pull the wire off the terminal of the spark plug.
3. Remove the plug from the cylinder head.
4. Check the condition of the side electrode, center
electrode, and center electrode insulator to
ensure that there is no damage
Figure 38
1. Side electrode
2. Center electrode insulator
5. Set the air gap between the center and side
of the electrodes at 0.81 mm (0.032 inch) as
shown in Figure
6. Install the spark plug into the cylinder head, and
torque the plug to 24.5 to 29 N∙m (18 to 22 ft-lb).
7. Install the spark-plug wire.
8. Repeat steps 1 through
plug.
(Figure
3. Air gap (not to scale)
38.
7 for the other spark
Fuel System
Maintenance

Replacing the Fuel Filter

Service Interval: Every 400 hours
1. Raise the bed and place the safety support on
the extended-lift cylinder to hold up the bed.
2. Unplug the wire-harness connectors from the
fuel pump
3. Loosen the hose clamp and disconnect the fuel
line from the fuel-pump cap
38).
1. Fuel pump
2. Hose clamp
4. Remove the fuel-pump cap from the top of the
fuel tank
Important:
g238437
assembly to rotate in the tank while removing
the fuel pump. Damage to the float assembly
can occur if the fuel pump rotates inside the
fuel tank.
5. Remove the fuel-pump assembly and the fuel
filter from the tank
6. Remove the clamp securing the fuel filter hose
to the fuel-pump fitting.
7. Remove the hose from the fitting
8. Insert the new hose clamp onto the new
fuel-filter hose.
9. Insert the hose onto the fuel pump and secure
the clamp.
10. Insert the assembly into the fuel tank, and
tighten the cap to 20 to 22 N∙m (175 to 200 in-lb).
11. Connect the wires and secure the hose with the
hose clamp.
42
(Figure 39).
(Figure
Figure 39
3. Fuel line/fuel filter
(Figure 39).
Do not allow the fuel-pump
(Figure 39).
39).
g010330
(Figure 39).