Servicing The Spark Plug - Toro 74353 Operator's Manual

Components under the hood will be
hot if the machine has been running. If
you touch hot components you may be
burned.
Allow the machine to cool before
performing maintenance or touching
components under the hood.
5. Slide the drain hose over the drain valve.
6. Place a pan below the drain hose. Rotate oil
drain valve to allow oil to drain (Figure 26).
Figure 26
1. Oil drain valve
7. When oil has drained completely, close the
drain valve.
8. Remove the drain hose (Figure 26).
Note: Dispose of the used oil at a recycling
center.
9. Change the oil filter, if necessary (Figure 27).
10. Clean around the oil dipstick and unscrew the
cap (Figure 24).
11. Slowly pour approximately 80% of the
specified oil into the filler tube (Figure 24).
12. Check the oil level; refer to Checking the Oil
Level in Engine Maintenance, page 21.
13. Slowly add additional oil to bring it to the full
mark.
Changing the Oil Filter
Replace the oil filter every 100 hours or every
other oil change.
Note: Change the oil filter more often in dusty,
dirty conditions.
2. Oil drain tube
1. Drain the oil from the engine; refer to Changing
and Draining the Oil in Engine Maintenance,
page 21.
2. Remove the old filter and wipe the filter
adapter gasket surface (Figure 27).
3. Apply a thin coat of clean oil to the rubber
gasket on the replacement filter (Figure 27).
Figure 27
1. Oil lter
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 27).
5. Fill the crankcase with the proper type of new
oil; refer to Changing and Draining the Oil in
Engine Maintenance, page 21.

Servicing the Spark Plug

Replace the spark plug after every 100 operating
hours. 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. Pull the wire off of the spark plug (Figure 28).
Clean around the spark plug to prevent dirt
24
3. Adapter