Servicing The Air Filter; Changing The Engine Oil - Toro 22291 Operator's Manual

Servicing the Air Filter

Service Interval: Every 25 hours—Clean the foam
pre-filter (more frequently in dusty
conditions).
Every 300 hours—Replace the paper air filter
(more frequently in dusty conditions).
Important:
Do not operate the engine without the
air filter assembly in place; otherwise, extreme
engine damage will occur.
1. Shut off the engine and wait for all moving parts
to stop.
2. Disconnect the wire from the spark plug.
3. Loosen the screw on the air-filter cover
20).
Figure 20
1. Air-filter cover
2. Paper air filter
4. Remove the cover and clean it thoroughly.
5. Remove and inspect the paper air filter
20), and replace it if it is excessively dirty.
Important:
Do not try to clean a paper filter.
6. Remove the foam pre-filter
it with a mild detergent and water, then blot it dry.
(Figure
g024349
3. Foam pre-filter
(Figure
(Figure 20) and wash
7. Install the foam pre-filter.
8. Install the paper air filter.
9. Install the cover and secure it with the screw.

Changing the Engine Oil

Service Interval: After the first 8 hours
Every 50 hours
Run the engine a few minutes before changing the oil
to warm it. Warm oil flows better and carries more
contaminants.
Engine Oil Specifications
Engine oil capacity
Oil viscosity
API service classification
*There is residual oil in the crankcase after you drain
the oil. Do not pour the entire capacity of oil into the
crankcase. Fill the crankcase with oil as directed in
the following steps.
1. Shut off the engine and wait for all moving parts
to stop.
2. Disconnect the wire from the spark plug.
3. Drain the fuel from the fuel tank.
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. Tip the machine onto its right side (air filter up)
to drain the oil into the drain pan.
8. After draining the oil, return the machine to the
operating position.
9. Carefully pour about 3/4 of the engine capacity
of oil into the oil-fill tube.
10. Wait 3 minutes for the oil to settle in the engine.
11. Wipe the dipstick clean with a clean cloth.
12. Insert the dipstick into the oil-fill tube, screw it in,
then remove the dipstick.
13. Read the oil level on the dipstick.
•
If the oil level on the dipstick is too low,
carefully pour a small amount of oil into the
oil-fill tube, wait 3 minutes, and repeat steps
through .
•
If the oil level on the dipstick is too high,
drain the excess oil until the oil level on the
dipstick is correct.
22
0.65 L (22 fl oz)*
SAE 30 or SAE 10W-30
detergent oil
SJ or higher