Servicing The Engine Oil - Toro 74448 Operator's Manual

1. If installing a new filter, check it for shipping damage.
Do not use a damaged filter.
2. Carefully slide the air filter into the body (Figure 27).
Note: 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.
3. Install the air cleaner cover with the side indicated as
UP facing up and secure the latches (Figure 27).

Servicing the Engine Oil

Service Interval/Specification
Note: Change the oil more frequently when the
operating conditions are extremely dusty or sandy.
Oil Type: Detergent oil (API service SF, SG, SH, or SJ)
Crankcase Capacity: 58 ounces (1.7 liter) with the filter
removed; 51 ounces (1.5 liter) without the filter removed
Viscosity: Refer to the table below
Checking the Engine Oil Level
Service Interval: Before each use or daily
1. Park the machine on a level surface.
2. Disengage the PTO, turn the ignition key to off, and
remove the key.
3. Wait for all moving parts to stop before leaving the
operating position and then chock or block tires.
4. Clean around the oil dipstick (Figure 29) so that dirt
cannot fall into the filler hole and damage the engine.
Figure 28
1. Oil dipstick
5. Unscrew the oil dipstick and wipe the end clean
(Figure 29).
6. Slide the oil dipstick fully into the filler tube, but do
not thread onto tube (Figure 29).
7. Pull the dipstick out and look at the metal end. If the
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 and run the engine; engine damage can
result.
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.
3. Disengage the PTO and set the parking brake.
4. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
5. Slide the drain hose over the oil drain valve.
6. Place a pan below the drain hose. Rotate oil drain
valve to allow oil to drain (Figure 30).
7. When oil has drained completely, close the drain
valve.
8. Remove the drain hose (Figure 30).
Note: Dispose of the used oil at a recycling center.
27
Figure 29
2. Filler tube