Changing The Spark Plugs - Toro 41177 Operator's Manual

Figure 51
1. Oil drain plug
6. When the oil has drained completely, replace the
drain plug and torque it to 10 ft-lb (13.6 N-m).
7. Dispose of the used oil at a certified recycling center.
8. Slowly pour approximately 80% of the specified
amount of oil into the oil filler tube (Figure 50).
9. Check the oil level.
10. Slowly add additional oil to bring the oil level to the
full mark on the dipstick.
Important: Overfilling the crankcase with oil
may cause engine damage.
Changing the Engine Oil Filter
Service Interval: Every 100 hours
1. Drain the oil from the engine; refer to Changing the
Engine Oil.
2. Remove the oil filter (Figure 52).
Figure 52
1. Oil filter
3. Wipe the filter adapter gasket surface.
4. Apply a thin coat of new oil to the rubber gasket
on the replacement filter.
5. 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 turn (Figure 52).
2. Filter adapter
6. Fill the crankcase with the correct type of new oil;
refer to Changing the Engine Oil, steps 8 through 10.
7. Dispose of the used oil filter at a certified recycling
center.

Changing the Spark Plugs

Service Interval: Every 200 hours
Type: Champion RC-12YC (or equivalent)
Air Gap: 0.030 inch (0.76 mm)
Make sure the air gap between the center and side
electrodes is correct before installing the spark plugs.
Use a spark plug wrench for removing and installing the
spark plugs and a gapping tool/feeler gauge to check
and adjust the air gap.
Removing the Spark Plug
1. Set the parking brake, stop the pump, stop the
engine, and remove the ignition key.
2. Release the latch on the back of the seat and lift the
seat forward.
3. Pull the wires off the spark plugs (Figure 53).
4. Clean around the spark plugs to prevent dirt from
falling into the engine and potentially causing
damage.
5. Remove the spark plugs and metal washers.
1. Spark plug wire
Checking the Spark Plugs
1. Look at the center of the spark plugs (Figure 54).
If you see a light brown or gray coating on the
insulator, the engine is operating properly. A black
46
Figure 53
2. Spark plug