Servicing The Spark Plugs - Toro 74448 Operator's Manual

1. Oil drain valve
9. Slowly pour approximately 80% of the specified oil
into the filler tube (Figure 29).
10. Check the oil level; refer to Checking the Engine Oil
Level.
11. Slowly add the additional oil to bring it to the Full
mark.
Changing the Oil Filter
Service Interval: Every 200 hours
Note: Change the oil filter more frequently when the
operating conditions are extremely dusty or sandy.
1. Drain the oil from the engine; refer to Changing the
Engine Oil.
2. Remove the old filter (Figure 31).
1. Oil filter
Figure 30
2. Oil drain hose
Figure 31
2. Adapter
3. Apply a thin coat of new oil to the rubber gasket on
the replacement filter (Figure 31).
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 3/4 turn (Figure 31).
5. Fill the crankcase with the proper type of new oil;
refer to Servicing the Engine Oil.
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

Service Interval/Specification
Ensure that the air gap between the center and side
electrodes is correct before installing the 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® RCJ8Y or equivalent Air Gap:
0.030 inch (0.75 mm)
Removing the Spark Plugs
1. Disengage the PTO and set the parking brake.
2. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
3. Disconnect the wires from the spark plugs
(Figure 32).
1. Spark-plug wire/spark plug
4. Clean around the spark plugs to prevent dirt from
falling into the engine and potentially causing
damage.
5. Remove the spark plugs and the metal washers.
28
Figure 32