Servicing The Air Filter; Servicing The Spark Plug; Changing The Engine Oil - Toro Super Recycler 20039 Operator's Manual

Servicing the Air Filter

Clean the pre-cleaner and replace the air filter once every
season or every 25 operating hours; replace it more
frequently in dusty operating conditions.
Important
Do not operate the engine without the air
filter element; extreme engine damage will occur.
1. Stop the engine and wait for all moving parts to stop.
2. Disconnect the wire from the spark plug (Fig. 11).
3. Remove the screws that secure the air filter cover
(Fig. 18).
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Ó Ó
2
Figure 18
1. Screws
2. Foam pre-cleaner
4. Remove the cover and clean it thoroughly (Fig. 18).
5. Remove the foam pre-cleaner.
6. Wash the pre-cleaner with a mild detergent and water,
then blot it dry (Fig. 18).
7. Remove the paper air filter and discard it (Fig. 18).
Important
Do not try to clean a paper air filter.
8. Insert the new paper air filter into the foam pre-cleaner
(Fig. 18).
9. Install the new air filter (Fig. 18).
10. Install the cover and secure it (Fig. 18).

Servicing the Spark Plug

Check the spark plug after every 25 operating hours. Use a
Champion RC12YC spark plug or equivalent.
1. Stop the engine and wait for all moving parts to stop.
2. Disconnect the wire from the spark plug (Fig. 11).
3. Clean around the spark plug and remove it from the
cylinder head.
Important Replace a cracked, fouled, or dirty spark
plug. Do not clean the electrodes because grit entering the
cylinder could damage the engine.
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m-4203
3. Air filter
4. Cover
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4. Set the gap on the new plug to 0.020 in. (0.50 mm)
(Fig. 19).
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Figure 19
1. 0.020 in. (0.50 mm)
5. Install the spark plug and the gasket seal.
6. Torque the spark plug to 15 ft-lb (20 N m).
7. Connect the wire to the spark plug.

Changing the Engine Oil

Change the oil after the first 5 operating hours and then
after every 50 operating hours or every season. Run the
engine just before changing the oil to warm the oil. Warm
oil flows better and carries more contaminants.
Note: Change the oil after every 25 operating hours when
operating under a heavy load or in high temperatures.
Draining the Oil above the Lawn Mower
Deck (Preferred Method)
1. Remove the grass bag.
2. Disconnect the wire from the spark plug (Fig. 11).
3. Drain the gasoline from the fuel tank; refer to steps 3
and 4 of Emptying the Fuel Tank on page 20.
4. Remove the dipstick from oil fill tube and place a drain
pan next to the left side of the lawn mower.
5. Tip the lawn mower onto its left side, allowing the oil
to drain into the drain pan (Fig. 20).
Figure 20
1. Oil fill tube
6. Turn the lawn mower upright.
7. Fill the crankcase with fresh oil to the Full mark on the
dipstick. Refer to Filling the Crankcase with Oil on
page 8.
8. Install the dipstick.
9. Wipe up any spilled oil.
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