Servicing The Spark Plug - Toro TimeCutter Z5020 74372 Operator's Manual

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1. Oil filter
11. Apply a thin film of clean oil to the rubber gasket on
the new filter.
12. Install the replacement oil filter to the adapter.
Turn the oil filter clockwise until the rubber gasket
contacts the pad, then tighten the filter an additional
3/4 to 1 turn (Figure 26). Wipe up any excess oil
on the frame.
13. When oil has drained completely, install the oil drain
plug. Tighten the plug to 14 N⋅m (125 in-lb) torque.
Wipe up any excess oil (Figure 25).
Note: Dispose of the used oil at a recycling center.
14. Slowly pour approximately 80% of the specified oil
into the filler tube (Figure 24).
15. Install the oil fill cap/dipstick (Figure 24).
16. Check the oil level (Figure 24); refer to Checking
the Oil Level.
17. Slowly add additional oil to bring it to the full mark.
18. Install the oil fill cap/dipstick and screw tight
(Figure 24).

Servicing the Spark Plug

Service Interval: Every 200 hours—Check spark
plug(s) condition and gap.
Every 500 hours—Replace the spark
plug(s).
The spark plug is RFI compliant. Equivalent alternate
brand plugs can also be used. Spark plug replacement is
recommended at 500 hours.
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G005298
Figure 26
2. Adapter
Type: Champion XC12YC (or equivalent)
Air Gap: 0.030 inch (0.76 mm)
Removing the Spark Plug
1. Disengage the blade control switch, move the
motion controls outward to the park position, stop
the engine, and remove the key.
2. Before removing the spark plug(s), clean the area
around the base of the plug to keep dirt and debris
out of the engine.
Pull the wire off of the spark plug(s) (Figure 27).
3. Clean around the spark plug(s) to prevent dirt
from falling into the engine and potentially causing
damage. Remove the spark plug(s) and metal washer.
1. Spark plug and wire locations
Checking the Spark Plug
1. Look at the center of the spark plug (Figure 28).
If you see light brown or gray on the insulator, the
engine is operating properly. A black coating on the
insulator usually means the air cleaner is dirty.
Important: Never clean the spark plug. Always
replace the spark plug when it has a black
coating, worn electrodes, an oily film, or cracks.
2. Check the gap between the center and side electrodes
(Figure 28). Bend the side electrode (Figure 28) if
the gap is not correct.
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Figure 27