Engine Maintenance; Servicing The Air Cleaner; Servicing The Engine Oil - Toro 23511 Operator's Manual

Engine Maintenance

Servicing the Air Cleaner

Service Interval: Before each use or daily—Inspect the air
cleaner elements.
Every 50 hours—Clean the air filter elements. Clean
them more frequently in dusty operating conditions.
Every 300 hours/Yearly (whichever comes
first)—Replace the paper air cleaner element. Replace
it more frequently in dusty operating conditions.
Important: Do not operate the engine without the air
filter assembly; extreme engine damage will occur.
1. Stop the engine and wait for all moving parts to stop.
2. Disconnect the wire from the spark plug.
3. Remove the nut that secures the cover (Figure 16).
Figure 16
1. Nut
2. Cover
4. Remove the cover.
Note: Be careful to prevent dirt and debris from
falling into the base.
5. Remove the nut restraining air filter assembly.
6. Remove the foam and paper elements from the base
(Figure 16).
7. Remove the foam element from the paper element
(Figure 16).
8. Inspect the foam and paper elements, and replace them
if they are damaged or excessively dirty.
9. If the paper element is excessively dirty, replace it.
Note: Never try to brush dirt off the paper element;
brushing forces the dirt into the fibers.
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3. Paper element
4. Foam element
10. Clean the foam element in warm, soapy water or in a
nonflammable solvent.
Note: Do not use gasoline to clean the foam element
because it could create a risk of fire or explosion.
11. Rinse and dry the foam element thoroughly.
12. Dip the foam element in clean engine oil, then squeeze
out the excess oil.
Note: Excess oil in the foam element restricts the air
flow through the element and may reach the paper
filter and clog it.
13. Wipe dirt from the base and the cover with a moist rag.
Note: Be careful to prevent dirt and debris from
entering the air duct leading to the carburetor.
14. Install the air cleaner elements and ensure that they are
properly positioned.
15. Secure the air cleaner elements with the previously
removed nut.
16. Securely install the cover with the previously removed
nut.

Servicing the Engine Oil

Oil Type: Detergent oil (API service SJ or higher)
Crankcase Capacity: 1.1 l (37 oz)
Viscosity: See table below
5W - 30 / 10W - 30
0 20 40
-20 -10 0
Changing the Engine Oil
Service Interval: After the first 25 hours
Every 100 hours
WARNING
Oil may be hot after the engine has been run, and
contact with hot oil can cause severe personal injury.
Avoid contacting the hot engine oil when you drain
it.
17
30
60 80 100 F
10 20 30 40 C
Figure 17
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