Servicing The Engine Oil - Toro 74237CP Operator's Manual

Replacing the Primary Air Filter
Service Interval: Every 250 hours
Do not clean the primary filter.
Replacing the Safety Air Filter
Service Interval: Every 600 hours
Important: Never attempt to clean the safety filter.
If the safety 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. (Figure 26).
2. If the safety filter is being replaced, carefully slide it
into the filter body (Figure 26).
3. Carefully slide the primary filter over the safety filter
(Figure 26). Ensure that it is fully seated by pushing
on the outer rim of the filter while installing it.
Note: Do not press on the soft inside area of the
filter.
4. Install the air cleaner cover with the side indicated as
UP facing up and secure the latches (Figure 26).

Servicing the Engine Oil

Oil Type: Detergent oil (API service SF, SG, SH or SJ)
Crankcase Capacity: with a filter change, 57 ounces
(1.7 l); without a filter change, 47 ounces (1.4 l)
Viscosity: See the table below.
Figure 27
Checking the Engine Oil Level
Service Interval: Before each use or daily
Note: Check the oil when the engine is cold.
1. Disengage the PTO, move the motion control levers
to the neutral locked position and set the parking
brake.
2. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
3. Clean around the oil dipstick (Figure 28) so dirt
cannot fall into engine.
1. Dipstick end
2. Dipstick
4. Pull the oil dipstick and wipe the metal end clean
(Figure 28).
5. Slide the oil dipstick fully into the engine. Pull the
dipstick out and look at the metal end (Figure 28). If
oil level is low, slowly pour only enough oil into the
filler tube to raise the level to the full mark.
Important: Do not overfill the crankcase with
oil because the engine may be damaged. Do not
run engine with oil below the low mark because
the engine may be damaged.
Changing the Oil
Service Interval: After the first 8 hours
Every 100 hours
1. Start the engine and let it run five minutes. This
warms the oil so it drains better.
2. Park the machine so that the drain side is slightly
lower than the opposite side to assure the oil drains
completely.
28
Figure 28
3. Filler cap