Changing The Engine Oil; Servicing The Spark Plug - Toro 20323 Operator's Manual

Changing the Engine Oil

Service Interval: After the first 5 hours
Yearly
1. Ensure that the fuel tank contains little or no fuel so
that fuel does not leak out when you tip the mower
onto its side.
2. Run the engine a few minutes before changing the
oil to warm it.
Note: Warm oil flows better and carries more
contaminants.
3. Disconnect the wire from the spark plug. Refer to
Preparing for Maintenance.
4. Remove the dipstick.
5. Tip the mower onto its side, with the dipstick down,
to drain the used oil out through the oil fill tube
(Figure 19).
6. Return the mower to the operating position.
7. Slowly pour oil into the oil fill hole, wait 3 minutes,
and check the oil level on the dipstick by wiping the
dipstick clean and then inserting, but not screwing
in, the oil fill cap into the hole.
Note: Max. fill: 20 oz. (0.59 l), type: SAE 30
or SAE 10W-30 detergent oil with an API service
classification of SF, SG, SH, SJ, SL, or higher.
Note: Fill the engine crankcase with oil until the
dipstick indicates that the engine oil level is correct
as shown in (Figure 20). If you overfill the engine
with oil, remove the excess oil as directed in 5.
Figure 19
1. The oil level is at its
maximum.
2. The oil level is too
high—remove oil from
the crankcase.
8. Install the dipstick and hand tighten it securely.
9. Dispose of the used oil properly at a local recycling
center.

Servicing the Spark Plug

Service Interval: Every 100 hours
Check the spark plug after every 100 operating hours.
Use an Champion RN9YC spark plug or equivalent.
1. Stop the engine and wait for all moving parts to stop.
2. Disconnect the wire from the spark plug.
3. Clean around the spark plug.
4. Remove the spark plug from the cylinder head.
Important: Replace a cracked, fouled, or
dirty spark plug. Do not clean the electrodes
because grit entering the cylinder can damage
the engine.
5. Set the gap on the plug to 0.030 inch (0.76 mm)
(Figure 21).
12
Figure 20
3. The oil level is too
low—add oil to the
crankcase.