Inspecting Filter Element; Cleaning The Radiator And Screen; Changing Engine Oil And Filter - Toro 30789 Operator's Manual

Prepare a solution of filter cleaner and water and soak
filter element about 15 minutes Refer to directions on
filter cleaner carton for complete information.
After soaking filter for 15 minutes, rinse it with clear
water. Maximum water pressure must not exceed 40 psi
(276 kPa) to prevent damage to the filter element.
Dry filter element using warm, flowing air (160 F
(71 C) max), or allow element to air–dry. Do not use
compressed air or a light bulb to dry the filter element
because damage could result.
Compressed Air Method
Important
Do not remove plastic fin assembly
because back–blowing with compressed air removes
dust from beneath fins.
Blow compressed air from inside to the outside of dry
filter element. Do not exceed 100 psi (689 kPa) to
prevent damage to the element.
Keep air hose nozzle at least one inch (25 mm) from
pleated paper, and move nozzle up and down while
rotating the filter element. Inspect element when dust
and dirt are removed; refer to Inspecting Filter Element.
4. Wipe inside of air cleaner body with a damp cloth to
remove excess dust. Slide filter into air cleaner body
and secure it in place with wing nut and gasket.
5. Reinstall dust cup and baffle. Move thumb screw
behind air cleaner body and tighten it securely.

Inspecting Filter Element

1. Place bright light inside filter.
2. Rotate filter slowly while checking for cleanliness,
ruptures, holes, and tears. Replace defective filter
element.
3. Check fin assembly, gasket, and screen for damage.
Replace filter if damage is evident.
Cleaning the Radiator and
Screen
The screen and front of the radiator must be kept clean to
prevent the engine from overheating. Normally, check the
screen and front of radiator daily and, if necessary, clean
any debris off these parts. However, it will be necessary to
check and to clean the screen each quarter hour and radiator
checked every hour in extremely dusty and dirty
conditions.
Note: This situation may be particularly prevalent if the
rear discharge cutting unit is being used. The front of the
radiator can be cleaned thoroughly by blowing with
compressed air from the fan side of the radiator. Make sure
to clean out any debris that settles to the bottom of the
screen. The screen in front of radiator can be removed—by
loosening wing nuts at top of screen—to make cleaning
easier.

Changing Engine Oil And Filter

Check oil level after each day's operation or each time
machine is used. Change oil and filter initially after first 50
hours of operation; change oil and filter after every 100
hours of operation thereafter. If possible, run engine just
before changing oil because warm oil flows better and
carries more contaminants than cold oil.
1. Position machine on a level surface.
2. Open the hood. Set drain pan under the oil pan and in
line with drain plug.
3. Clean area around drain plug.
4. Remove oil drain plug and allow oil to flow into drain
pan.
5. Remove and replace oil filter.
6. After oil is drained, reinstall drain plug and wipe up any
oil that is spilled.
7. Fill crankcase with oil; refer to Check Crankcase Oil.
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