Toro Greensmaster 3120, Руководство оператора, Страница: 32 / 48

2. Clean the threads of the drain plug, apply PTFE
sealant, and install the drain plug (
Figure 39 ).
3. Remove the oil filter ( Figure 39 ).
4. Apply a light coat of clean oil to the new filter
gasket.
5. Thread the oil filter onto the engine by hand
until the gasket contacts the filter adapter, then
tighten the filter 3/4 to 1 turn further.
Important:
Do not overtighten the oil filter.
6. Add oil to the crankcase; refer to Engine Oil
Specification (page 31) and Checking the
Engine Oil (page 31) .
7. Dispose of the oil filter and used oil properly.
Replacing the Spark Plugs
Service Interval: Every 1,000 hours
Spark plug specification: Champion RC 14YC
Air gap specification: 0.76 mm (0.030 inch)
1. Clean the area around the spark plugs so that
foreign matter cannot fall into the cylinder.
2. Pull the wires off the spark plugs and remove
the plugs.
3. Check the condition of the side electrode, center
electrode, and center electrode insulator to
ensure that there is no damage.
Important:
Replace a cracked, fouled, dirty,
or otherwise malfunctioning spark plug. Do
not sand blast, scrape, or clean electrodes
by using a wire brush because grit may
eventually release from the plug, fall into the
cylinder, and damage the engine.
4. Set the air gap between the center and side of
the electrodes at 0.76 mm (0.030 inches) as
shown in
Figure 40 .
g251456
Figure 40
1. Set air gap to 0.76 mm (0.030 inches).
5. Install the spark plug and gasket seal, and
torque the plug to 23 N∙m (200 in-lb).
Fuel System
Maintenance
Replacing the Fuel Filter
Service Interval: Every 500 hours (sooner if the fuel
flow is restricted).
The in-line fuel filter is in the fuel line between the fuel
tank and carburetor (
Figure 41 ).
DANGER
In certain conditions, fuel is extremely
flammable and highly explosive. A fire or
explosion from fuel can burn you and others
and can damage property.
• Drain fuel from the fuel tank when the
engine is cold. Do this outdoors in an open
area. Wipe up any fuel that spills.
• Never smoke when draining fuel, and stay
away from an open flame or where a spark
may ignite the fumes.
1. Close the fuel-shutoff valve ( Figure 41 ).
g005131
Figure 41
1. Fuel-shutoff valve 2. Fuel filter
2. Place a drain pan under the filter, loosen the
hose clamp on the carburetor side of filter, and
remove the fuel line from the filter (
Figure 41 ).
3. Loosen the other hose clamp and remove the
filter (
Figure 41 ).
4. Install the new filter with the arrow on the filter
body pointing away from the fuel tank.
Inspecting the Fuel Lines
and Connections
Service Interval: Every 2 years
Inspect the fuel lines for deterioration, damage, or
loose connections.
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