Servicing The Engine Oil - Toro 74925 Operator's Manual

Figure 45
1. Air cleaner clamps
2. Air cleaner cover
Servicing the Primary Filter
1. Do not clean the paper filter, replace it (Figure 45).
2. Inspect the element for tears, an oily film, or damage
to the rubber seal.
3. Replace the paper element if it is damaged.
Servicing the Secondary Filter
Do not clean the secondary filter, replace it.
Important: Never attempt to clean the secondary
filter. If the secondary filter is dirty, then the
primary filter is damaged and you should replace
both filters.
Installing the Filters
Important: To prevent engine damage, always
operate the engine with both air filters and cover
installed.
1. If installing new filters, check each filter for shipping
damage. Do not use a damaged filter.
2. If the secondary filter is being replaced, carefully
slide it into the filter body (Figure 45).
3. Carefully slide the primary filter over the secondary
filter (Figure 45). Ensure that it is fully seated by
pushing on the outer rim of the filter while installing
it.
Important: Do not press on the soft inside area
of the filter.
4. Install the air cleaner cover with the breather cap
down and rotate so the retaining clamps lock the
cover in place (Figure 45).
3. Primary air filter
4. Secondary air filter

Servicing the Engine Oil

Note: There are different oil capacities for the 23hp,
27hp, 29hp, and 34hp engines. Ensure the correct
capacity is used.
Oil Type: Detergent oil (API service SG, SH, SJ, or SL)
Oil Capacity for 23hp Engines: with a filter change, 58
ounces (1.7 L); without a filter change, 51 ounces (1.5 L)
Oil Capacity for 27 and 29hp Engines: with a filter
change, 77 ounces (2.3 L); without a filter change, 70
ounces (2.1 L)
Oil Capacity for 34hp Engines: with a filter change, 64
ounces (1.9 L); without a filter change, 58 ounces (1.7 L)
Viscosity: See the table below.
Note: Use of multi-grade oils (5W-20, 10W-30, or
10W-40) will increase oil consumption. Check the oil
level more frequently when using them.
Checking the Engine Oil Level
Service Interval: Before each use or daily
Note: Check the oil when the engine is cold.
WARNING
Contact with hot surfaces may cause personal
injury.
Keep hands, feet, face, clothing and other body
parts away from the muffler and other hot surfaces.
Important: Do not overfill the crankcase with oil
because damage to the engine may result. Do not
run engine with oil below the low mark because the
engine may be damaged.
33
Figure 46