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Figure 36
1. Oil drain valve
2. Oil drain tube
7. When oil has drained completely, close the drain
valve.
8. Remove the drain hose (Figure 36).
Note: Dispose of the used oil at a recycling center.
9. Change the oil filter, if necessary (Figure 37).
10. Clean around the oil dipstick and unscrew the cap
(Figure 34).
11. Slowly pour approximately 80% of the specified oil
into the filler tube (Figure 34).
12. Check the oil level; refer to Checking the Oil Level
in Engine Maintenance , page 27.
13. Slowly add additional oil to bring it to the full mark.
Changing the Oil Filter
Service Interval: Every 100 hours—Change the oil
filter.
Note: Change the oil filter more often in dusty, dirty
conditions.
1. Drain the oil from the engine; refer to Changing and
Draining the Oil.
2. Remove the old filter and wipe the filter adapter
gasket surface (Figure 37).
3. Apply a thin coat of clean oil to the rubber gasket on
the replacement filter (Figure 37).
3. Oil pan
4. Rear, ldrive wheel
1. Oil filter
2. Gasket
4. Install the replacement oil filter to the filter adapter.
Turn the oil filter clockwise until the rubber gasket
contacts the filter adapter; then tighten the filter an
additional 1/2 to 3/4 turn (Figure 37).
5. Fill the crankcase with the proper type of new oil;
refer to Changing and Draining the Oil.
Servicing the Spark Plug
Service Interval: Every 100 hours—Replace spark plug.
Make sure that the air gap between the center and side
electrodes is correct before installing the spark plug.
Use a spark plug wrench for removing and installing
the spark plug(s) and a gapping tool/feeler gauge to
check and adjust the air gap. Install a new spark plug
if necessary.
Type: Champion RC12YC (or equivalent)
Air Gap: 0.030 inch (0.76 mm)
Removing the Spark Plug
1. Disengage the blade control switch, set the parking
brake, stop the engine, and remove the key.
2. Remove the collection bag and open the access panel
(Figure 27).
3. Pull the wire off of the spark plug (Figure 38). Clean
around the spark plug to prevent dirt from falling
into the engine and potentially causing damage.
29
Figure 37
3. Adapter
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