Changing The Engine Oil; Servicing The Spark Plug - Toro 22196 Operator's Manual

Changing the Engine Oil

Service Interval: After the first 5 hours
Every 50 hours
1. Run the engine to warm the engine oil.
Note: Warm oil flows better and carries more
contaminants.
Oil may be hot after engine has been run, and
contact with hot oil can cause severe personal
injury.
Avoid contacting the hot engine oil when you
drain it.
2. Stop the engine and wait for all moving parts to stop.
3. Disconnect the wire from the spark plug.
4. Place a suitable drain pan under the dipstick/oil
drain.
5. Clean around the dipstick.
6. Remove the dipstick by rotating the cap
counterclockwise and pulling it out.
7. Raise the left side of the mower to drain the oil from
the dipstick fill tube into the drain pan.
8. After draining the oil, return the mower to its
operating position.
9. Fill the crankcase to the upper limit mark on the
dipstick with fresh oil. Refer to the Filling the
Crankcase with Oil.
10. Insert the dipstick into the filler neck and rotate the
cap clockwise until it is tight.
11. Wipe up any spilled oil.
12. Recycle the used oil according to local codes.

Servicing the Spark Plug

Service Interval: Every 100 hours—Inspect, clean, and
adjust the spark plug; replace it if
necessary.
Every 250 hours—Replace the spark
plug.
Use an NGK BPR5ES® ® ® or
Nippondenso® ® ® W16EPR-U 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 in. (0.76 mm)
(Figure 27).
1. Center electrode insulator
2. Side electrode
3. Air gap (not to scale)
6. Carefully install the spark plug by hand (to avoid
cross threading) until it is hand tight.
7. Tighten the spark plug an additional 1/2 turn if it is
new; otherwise, tighten it an additional 1/8 to 1/4
turn.
Important: A loose spark plug can become very
hot and can damage the engine; overtightening
a spark plug may damage the threads in the
cylinder head.
8. Connect the wire to the spark plug.
22
Figure 27