Maintenance; Maintenance Safety; Servicing The Air Filter; Changing The Engine Oil - Toro 22290 Operator's Manual

Maintenance

Maintenance Safety

•
Disconnect the spark-plug wire from the spark plug
before performing any maintenance procedure.
•
Wear gloves and eye protection when servicing
the machine.
•
The blade is sharp; contacting the blade can result
in serious personal injury. Wear gloves when
servicing the blade. Do not repair or alter the
blade(s).
•
Never tamper with safety devices. Check their
proper operation regularly.
•
Tipping the machine may cause the fuel to leak.
Fuel is flammable and explosive, and can cause
personal injury. Run the engine dry or remove the
fuel with a hand pump; never siphon the fuel.
•
To ensure optimum performance of the machine,
use only genuine Toro replacement parts and
accessories. Replacement parts and accessories
made by other manufacturers could be dangerous,
and such use could void the product warranty.

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).
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:
6. Remove the foam pre-filter
it with a mild detergent and water, then blot it dry.
7. Install the foam pre-filter.
8. Install the paper air filter.
(Figure
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
21
Figure 20
3. Foam pre-filter
Do not try to clean a paper filter.
(Figure 20) and wash
g024349
(Figure