Servicing The Engine Oil - Toro TRX-20 Operator's Manual

Cleaning the Foam Air Cleaner Element
1. Wash the foam element in liquid soap and warm water.
When the element is clean, rinse it thoroughly.
2. Dry the element by squeezing it in a clean cloth.
Important: Replace the foam element if it is torn
or worn.
Servicing the Paper Air Cleaner
Element
1. Clean the paper element by tapping gently to remove
dust. If it is very dirty, replace the paper element with a
new one (Figure 32).
2. Inspect the element for tears, an oily film, or damage to
the rubber seal.
3. Replace the paper element if it is damaged.
Do not clean the paper filter. Replace it after 200 operating
hours (Figure 32). Inspect the element for tears, an oily film,
or damage to the rubber seal, and replace it if it is damaged.
Installing the Foam and Paper Elements
Important: To prevent engine damage, always operate
the engine with the complete foam and paper air cleaner
assembly installed.
1. Carefully slide the foam element onto the paper air
cleaner element (Figure 32).
2. Place the air cleaner assembly onto the air cleaner base
or hose and secure it (Figure 32).
3. Place the air cleaner cover into position and tighten the
cover knobs (Figure 32).

Servicing the Engine Oil

Service Interval: After the first 8 hours—Change the engine
oil.
Before each use or daily—Check the engine oil level.
Every 100 hours—Change the engine oil.
Every 200 hours—Change the oil filter.
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 (Figure 33).
Checking the Engine Oil Level
1. Park the machine on a level surface.
2. Lower the boom and set the parking brake.
3. Stop the engine, remove the key, and wait for all moving
parts to stop before leaving the operating position.
4. Clean around the oil dipstick (Figure 34) so that dirt
cannot fall into the filler hole and damage the engine.
1. Oil dipstick
5. Unscrew the oil dipstick and wipe the end clean (Figure
34).
6. Slide the oil dipstick fully into the filler tube, but do not
thread onto tube (Figure 34).
7. Pull the dipstick out and look at the 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
1. Start the engine and let it run five minutes. This warms
the oil so it drains better.
25
Figure 33
Figure 34
2. Filler tube