Engine Maintenance; Servicing The Air Cleaner; Changing The Engine Oil; Servicing The Spark Plug - Toro 22155 Operator's Manual

Engine Maintenance

Servicing the Air Cleaner

Service Interval: Before each use or daily
Yearly
1. Press down on the latch tabs on top of the air cleaner
cover and remove the cover (Figure 34).
Figure 34
1. Air cleaner cover
2. Latch tab (2)
3. Air filter
2. Remove the air filter (Figure 34).
3. If the air filter is damaged or is wet with oil or fuel,
replace it.
4. If the air filter is dirty, tap it on a hard surface several
times or blow compressed air less than 30 psi (207
kPa) through the side of the filter that faces the
engine.
Note: Do not brush the dirt off the filter; brushing
forces dirt into the fibers.
5. Remove dirt from the air cleaner body and cover
using a moist rag. Do not wipe dirt into the air
duct.
6. Install the filter into the air cleaner.
7. Close the cover.

Changing the Engine Oil

Service Interval: After the first 5 hours
Yearly
Run the engine a few minutes before changing the oil
to warm it. Warm oil flows better and carries more
contaminants.
1. Perform the pre-maintenance procedures; refer to
Preparing for Maintenance.
2. Remove the dipstick (Figure 35).
3. Tip the mower onto its side, with the air filter up,
to drain the used oil out through the oil fill tube
(Figure 36).
4. Slowly pour oil into the oil fill tube, periodically
checking the level with the dipstick, until the dipstick
indicates that the engine is full as illustrated in
Figure 35. Do not overfill. (Max. fill: 20 oz. (0.55
l), type: SAE 30W detergent oil with an API service
classification of SH, SJ, SL, or higher.)
Note: If you overfill the engine, pour some oil out
of it.
5. Install the dipstick securely.
6. Dispose of the used oil properly at a local recycling
center.

Servicing the Spark Plug

Service Interval: Every 100 hours
Every 200 hours
Use an NGK BPR6ES spark plug or equivalent.
1. Stop the engine and wait for all moving parts to stop.
2. Disconnect the wire from the spark plug (Figure 33).
3. Clean around the spark plug.
4. Remove the spark plug from the cylinder head.
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Figure 35
Figure 36