Servicing The Engine Oil - Toro 74901 Z Master 5000 Operator's Manual

Note: Avoid knocking the filter into the side of the
body.
6. Remove the safety filter only if you intend to replace it.
Important: Never attempt to clean the safety
filter. If the safety filter is dirty, then the primary
filter is damaged. Replace both filters.
7. Inspect the primary filter for damage by looking into
the filter while shining a bright light on the outside of
the filter. Holes in the filter will appear as bright spots.
If the filter is damaged, discard it.
Servicing the Primary Filter
•
If the primary filter is dirty, bent, or damaged, replace it.
•
Do not clean the primary filter.
Servicing the Safety Filter
Replace the safety filter, never clean it.
Important: Never attempt to clean the safety filter.
If the safety filter is dirty, then the primary filter is
damaged. 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 safety filter is being replaced, carefully slide it
into the filter body (Figure 46).
3. Carefully slide the primary filter over the safety filter
(Figure 46).
Note: Ensure that the primary filter is fully seated by
pushing on its outer rim while installing it.
Important: Do not press on the soft inside area
of the filter.
4. Install the air cleaner cover with the side indicated as
up facing upward and secure the latches (Figure 46).

Servicing the Engine Oil

Note: There are different oil capacities for the different
models. Ensure the correct capacity is used.
Oil Type: Detergent oil (API service SG, SH, SJ, or higher)
Oil Capacity for 74901 engines: with a filter change, 56
ounces (1.65 L); with no filter change, 51 ounces (1.5 L)
Oil Capacity for 74903 engines: with a filter change, 59
ounces (1.75 L); with no filter change, 54 ounces (1.6 L)
Viscosity: See the table below.
Note: Use of synthetic oil having 5W-20 or 5W-30 rating is
acceptable, up to 4 degrees C (40 degrees F).
Note: Synthetic oils will provide better starting in extreme
cold below -23 degrees C (-10 degrees F).
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Figure 47