Toro 23740 Operator's Manual page 19

Figure 21
1. Air-filter base
2. Paper air filter
3. Foam pre-cleaner
3. Remove the foam pre-cleaner, wash it with a mild
detergent and water, and then blot it dry (Figure 21).
4. Remove and inspect the paper air filter (Figure 21);
discard it if it is excessively dirty.
Important: Do not try to clean a paper filter.
5. Wipe dirt away 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.
6. Install the foam pre-cleaner onto the paper air filter
(Figure 21).
Note: Use a new paper air filter if you discarded the
old one.
7. Install the air filter assembly to the air-filter base
(Figure 21).
8. Align the arrow decal on the air-cleaner cover and the
arrow decal on the base (Figure 22).
4. Cover
5. Latch on the air-cleaner
cover (2)
1. Alignment-arrow decal (normal ambient air position shown)
9. Secure the air-filter cover to the base with the latches.
Checking the Engine-oil Level
Service Interval: Before each use or daily
Engine Oil Type: Toro 4–Cycle Premium Engine Oil
Use high-quality detergent oils (including synthetic) of API
(American Petroleum Institute) service class SJ or higher.
Select the viscosity based on the air temperature at time of
operation as shown in the table below.
Check the oil level when the engine is cold.
1. Clean the area around the dipstick.
2. Remove the dipstick and read the oil level (Figure 24).
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Figure 22
G023796
Figure 23