Servicing The Spark Plugs; Replacing The Fuel Filter - Toro Pro Force 44554 Operator's Manual

3. Apply a thin coat of new oil to the rubber gasket on
the replacement filter
4. Install the replacement oil filter to the filter adapter,
turn the oil filter clockwise until the rubber gasket
contacts the filter adapter, then tighten the filter an
additional 2/3 to 1 turn
5. Fill the crankcase with the proper type of new oil; refer
to Servicing the Engine Oil (page
6. Run the engine for about 3 minutes, stop the engine,
and check for oil leaks around the oil filter.
7. Check the engine oil level and add oil if needed.

Servicing the Spark Plugs

Ensure that the air gap between the center and side electrodes
is correct before installing the spark plugs. Use a spark plug
wrench for removing and installing the spark plugs and a
gapping tool/feeler gauge to check and adjust the air gap.
Install new sparks plugs if necessary.
Type: Champion® RC12YC, Champion® Platinum 3071 or
equivalent
Air Gap: 0.76 mm (0.030 inch)
Checking the Spark Plugs
Service Interval: Every 200 hours
1. Look at the center of the spark plugs
you see light brown or gray on the insulator, the engine
is operating properly. A black coating on the insulator
usually means that the air cleaner is dirty.
Figure 19
1. Center electrode insulator
2. Side electrode
Important: Always replace a spark plug when it
has a black coating, worn electrodes, an oily film,
or cracks.
2. Check the gap between the center and side electrodes
(Figure 19). Bend the side electrode
gap is not correct.
(Figure 18).
(Figure 18).
19).
(Figure 19). If
3. Air gap (not to scale)
(Figure 19) if the
Removing the Spark Plugs
1. Stop the engine, remove the key, and wait for all moving
parts to stop before leaving the operating position.
2. Disconnect the wires from the spark plugs
1. Spark-plug wire
3. Clean around the spark plugs to prevent dirt from
falling into the engine and potentially causing damage.
4. Remove the spark plugs and the metal washers.
Installing the Spark Plugs
1. Install the spark plugs and the metal washer. Ensure
that the air gap is set correctly.
2. Tighten the spark plugs to 24.4 to 29.8 N-m (18 to
22 ft-lb).
3. Connect the wires to the spark plugs

Replacing the Fuel Filter

Service Interval: Every 500 hours
Never install a dirty filter if it is removed from the fuel line.
1. Stop the engine, remove the key, and wait for all moving
parts to stop before leaving the operating position.
2. Allow the machine to cool down.
3. Squeeze the ends of the hose clamps together and slide
them away from the filter
21
(Figure
Figure 20
2. Spark plug
(Figure
(Figure 21).
20).
19).