Servicing The Spark Plugs - Toro 22306 Operator's Manual

5. When the oil has drained completely, replace
the plug.
Note: Dispose of the used oil at a certified
recycling center.
6. Remove the oil fill cap and slowly pour
approximately 80% of the specified amount of
oil in through the valve cover.
7. Check the oil level; refer to Checking the
Engine Oil Level in Operation, page 18.
8. Slowly add additional oil to bring the level to
the F (full) mark on the dipstick.
9. Replace the fill cap.
Changing the Oil Filter
Replace the oil filter every 200 hours or every
other oil change.
Note: Change the oil filter more frequently when
operating conditions are extremely hot, dusty, or
sandy.
1. Drain the oil from the engine; refer to
Changing the Oil.
2. Place a shallow pan or rag under the filter to
catch oil.
3. Remove the old filter (Figure 30) and wipe the
surface of the filter adapter gasket.
Figure 30
1. Oil lter
4. Pour new oil of the proper type through the
center hole of the filter. Stop pouring when
the oil reaches the bottom of the threads.
5. Allow a minute or two for the oil to be
absorbed by filter material, then pour off the
excess oil.
6. Apply a thin coat of new oil to the rubber
gasket on the replacement filter.
7. 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 1/2 turn.
8. Fill the crankcase with the proper type of new
oil; refer to Changing the Oil.

Servicing the Spark Plugs

Check the spark plugs after every 200 operating
hours. Ensure that the air gap between the center
and side electrodes is correct before installing each
spark plug. 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 spark plugs if necessary.
Type: Champion Premium Gold 2071, RC12YC,
or equivalent. Air Gap: 0.030 inch (0.76 mm)
Removing the Spark Plugs
1. Lower the loader arms, stop the engine, and
remove the key.
2. Open the hood.
3. Pull the wires off of the spark plugs (Figure 31).
Figure 31
1. Spark plug wire
4. Clean around the spark plugs.
5. Remove both spark plugs and metal washers.
Checking the Spark Plugs
1. Look at the center of both spark plugs
(Figure 32). If you see light brown or gray on
the insulator, the engine is operating properly.
A black coating on the insulator usually means
the air cleaner is dirty.
30
2. Spark plug