IMPORTANT: The oil fill cap/dipstick must be installed securely onto the tube at all times when the engine is operating. Severe engine damage could result from a failure to do so.
•Start the tractor engine and allow it to run for thirty seconds, then stop the engine and remove the ignition key.
•Check the oil level and add oil if necessary. Do not overfill the engine crankcase.
•Examine the area around the base of the oil fill tube, the oil filter adapter, and the oil drain valve for leaks before operating the tractor.
IMPORTANT: If leaks are present, have your engine serviced by a Toro dealer before operating the tractor.
Air Filter
The engine is equipped with a replaceable, high density paper air cleaner element and an oiled, foam precleaner. Always examine the air cleaner before starting the engine. Check for a buildup of dirt and debris around the air cleaner system. Keep this area clean. Also check for loose or damaged components. Replace all bent or damaged air cleaner components.
NOTE: Starting the tractor with loose or damaged air cleaner components could allow unfiltered air into the engine causing premature wear and failure.
Precleaner
Wash and
•Loosen the air cleaner cover knob and remove the cover.
•Remove the precleaner.
•Wash the precleaner in warm water with detergent. Rinse the precleaner thoroughly until all traces of detergent are eliminated. Squeeze out excess water (do not wring). Allow the precleaner to air dry.
•Saturate the precleaner with new engine oil. Squeeze out all excess oil.
•Reinstall the precleaner over the paper element.
•Reinstall the air cleaner cover.
Service Paper Element
The paper element should be replaced at least every season or 100 hours of operation. Replace more frequently if the tractor is operated under extremely dusty conditions. To replace the paper element, proceed as follows:
•Pivot the air cleaner cover upward and unhook the wire latch which secures the element in place.
•Remove the air cleaner element with precleaner. Remove the precleaner from the element and service as instructed earlier in this section.
IMPORTANT: Do not wash the paper element or use pressurized air, as this will damage the element.
Examine the element and discard if dirt and/or damage is present.
NOTE: Handle new elements carefully; do not use if the sealing surfaces are bent or damaged.
•If any loose dirt or debris fell on the air cleaner base when the element was removed, carefully remove it and wipe the base clean. Be careful that none of it drops into the intake.
•Check the air cleaner base. Make sure it is secured and not damaged. Also check the air cleaner cover for damage or improper fit. Replace all damaged air cleaner components.
•Install the precleaner over the new paper element and reinstall the element.
•Lower the wire latch to secure the element in place and pivot the air cleaner cover downward.
Spark Plugs
Once a season, or every 100 hours of operation, remove the spark plugs, check condition, and reset the gap or replace with a new plugs as necessary.
•Lift the tractor’s hood and locate the each spark plug wire on either side of the engine.
•Carefully pull each spark plug wire boot off of each spark plug.
•Before removing the spark plugs, clean the area around the base of the plug to keep dirt and debris out of the engine.
•Using a ratchet with a
•Replace the plug if worn, dirty or damaged. Reuse only after resetting the gap as instructed.
NOTE: Do not clean the spark plug in a machine using abrasive grit. Some grit could remain in the spark plug and enter the engine causing extensive wear and damage.
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