Toro Greensmaster TriFlex 3420 Operator's Manual

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Engine MaintenanceServicing the Air CleanerService Interval: Every 200 hours• Check the air-cleaner body for damage whichcould cause an air leak; replace it if it is damaged.Check the whole intake system for leaks, damage,or loose hose clamps.• Service the air-cleaner filter before 200 hours ifthe engine performance suffers due to extremelydusty, dirty conditions. Changing the air filterbefore it is necessary only increases the chance ofdirt entering the engine when the filter is removed.• Ensure that the cover is seated correctly and sealswith the air cleaner body.1. Release the latches securing the air-cleanercover to the air-cleaner body (Figure 38).g014614Figure 381. Air-cleaner body 3. Air-cleaner cover2. Air filter2. Remove the cover from the air-cleaner body.3. Before removing the filter, use low pressure air(40 psi, clean and dry) to help remove largeaccumulations of debris packed between theoutside of the primary filter and the canister. Thiscleaning process prevents debris getting into theintake when you remove the primary filter.Important: Avoid using high pressure airwhich could force dirt through the filter intothe intake tract.4. Remove and replace the primary filter, asfollows:.Important: Do not clean the used element.A. Inspect the new filter for shipping damage;do not use a damaged element.B. Carefully pull the old filter out of the filterbody and discard it.C. Insert the new filter by applying pressureto the outer rim of the element to seat it inthe canister, checking the sealing end of thefilter and the body.Important: Do not apply pressure to theflexible center of the filter.5. Clean the dirt ejection port located in theremovable cover. Remove the rubber outletvalve from the cover, clean the cavity andreplace the outlet valve.6. Install the cover orienting the rubber outlet valvein a downward position—between approximately5:00 to 7:00 when viewed from the end.7. Secure the latches (Figure 38).Changing the Engine Oiland FilterService Interval: After the first 50 hoursEvery 150 hours1. Remove the drain plug and let oil flow into adrain pan. When the oil stops, install the drainplug (Figure 39).g014754Figure 391. Drain plug2. Remove the oil filter (Figure 40). Apply a lightcoat of clean oil to the new filter gasket.39