Spark Plug Service - Toro ProLine 30333 Operator's Manual

Change Oil Filter
Service Interval/Specification
Replace the oil filter every 200 hours or every other oil
change.
Note: Change oil filter more frequently when operating
conditions are extremely dusty or sandy.
1. Drain the oil from the engine; refer to
Changing/Draining Oil, page 25.
2. Remove the old filter (Fig. 25).
3. Apply a thin coat of new oil to the rubber gasket on the
replacement filter (Fig. 25).
1
Figure 25
1. Oil filter
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 3/4 turn (Fig. 25).
5. Fill the crankcase with the proper type of new oil; refer
to Engine Oil Service, page 25.

Spark Plug Service

Service Interval/Specification
Check the spark plug(s) after every 100 operating hours.
Make sure 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(s) if necessary.
Type: Champion RCJ8Y or NGK BPR4ES
Air Gap: 0.030 in. (.75 mm)
2
2. Adapter
26
Removing the Spark Plug
1. Disengage the power take off (PTO), chock or block
tires, and turn the ignition key to "OFF" to stop the
engine. Remove the key.
2. Pull the wire(s) off the spark plug(s) (Fig. 26). Now
clean around the spark plug(s) to prevent dirt from
falling into the engine and potentially causing damage.
3. Remove the spark plug(s).
1
Figure 26
1. Spark plug wire installed
Checking the Spark Plug
1. Remove spark plug.
2. Look at the center of the spark plug(s) (Fig. 27). 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(s). Always
replace the spark plug(s) when it has: a black coating, worn
electrodes, an oily film, or cracks.
3. Check the gap between the center and side electrodes
(Fig. 27). Bend the side electrode (Fig. 27) if the gap is
not correct.
(s)
2
2. Spark plug