Changing The Engine Oil And Filter; Replacing The Spark Plug - Toro 07383 Operator's Manual

Changing the Engine Oil and
Filter
Service Interval: After the first 50 hours
Every 200 hours
Engine-oil quantity: 3.2 L (3.4 US qt) (with a filter)
Engine-oil type: Detergent engine oil API SJ or higher
Engine-oil viscosity: 10W-30; Choose an engine-oil
viscosity according to the ambient-air temperature to the
table in Figure 45.
1. Raise the bed (if equipped), and place the safety support
on the extended-lift cylinder to hold up the bed.
2. Remove the drain plug and let the oil flow into a drain
pan (Figure 46).
3. When the oil stops, install the drain plug.
1
1. Engine-oil drain plug
2. Engine-oil filter
4. Remove the oil filter (Figure 46).
5. Apply a light coat of clean oil to the new filter seal
before screwing it on.
G016095
Figure 45
2
Figure 46
6. Screw the filter on until the gasket contacts the
mounting plate, then tighten the filter 1/2 to 2/3 of
a turn.
Note: Do not overtighten.
7. Add the specified oil to the crankcase; refer to
Checking the Engine-oil Level (page 20).

Replacing the Spark Plug

Service Interval: Every 400 hours
The spark plug usually lasts a long time; however, the
plug should be removed and checked whenever the engine
malfunctions, or every 400 hours. Replace the spark plug
to ensure proper engine performance and reduce exhaust
emission level.
The correct spark plug to use is an NGK-R BKR5E.
The recommended air gap is 0.81 mm (0.032 inch).
1. Clean the area around the spark plugs, so that foreign
matter cannot fall into the cylinder when you remove
the spark plug.
2. Pull wires off of the spark plugs and remove the plugs
from the cylinder head.
3. Check the condition of the side electrode, center
electrode, and the center electrode insulator to ensure
that there is no damage.
Important: A cracked, fouled, dirty, or otherwise
malfunctioning spark plug must be replaced. Do
not sand blast, scrape, or clean electrodes by using
a wire brush because grit may eventually release
from the plug and fall into the cylinder. The result
is usually a damaged engine.
G021292
1. Air gap at 0.81 mm (0.032 inch)
4. For each spark plug, set the air gap between the center
and side electrodes to 0.81 mm (0.032 inch).
5. Install the correctly gapped spark plugs and tighten
each one to 24.5 to 29 N-m (18 to 22 ft-lb).
Note: If you cannot use a torque wrench, tighten the
plug firmly.
6. Install the spark-plug wires.
43
Figure 47