Changing The Engine Oil And Filter; Replacing The Spark Plugs - Toro Workman HD 07369 Operator's Manual

Changing the Engine Oil and
Filter
Service Interval: After the first 50 hours
Every 100 hours
Engine-oil quantity: 1.9 L (2 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 41.
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 42).
1. Engine-oil-drain plug
2. Engine-oil filter
3. When the oil stops, install the drain plug.
4. Remove the oil filter
5. Apply a light coat of clean oil to the new filter seal
before screwing it on.
6. Screw the filter on until the gasket contacts the
mounting plate, then tighten the filter 1/2 to 2/3 of
a turn.
G016095
Figure 41
Figure 42
(Figure 42).
Note: Do not overtighten.
7. Add the specified oil to the crankcase; refer to
Checking the Engine-Oil Level (page

Replacing the Spark Plugs

Service Interval: Every 400 hours
The spark plugs usually lasts a long time; however, the
plugs should be removed and checked whenever the engine
malfunctions, or every 400 hours. Replace the spark plugs
to ensure proper engine performance and reduce exhaust
emission level.
Use the following spark plug: Champion RC 12YC
The recommended air gap is 1 mm (0.04 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 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.
1. Air gap at 1 mm (0.04 inch)
4. For each spark plug, set the air gap between the center
and side electrodes to 1 mm (0.040 inch).
5. Install the correctly gapped spark plugs and tighten
each one to 24.5 to 29 N·m (18 to 22 ft-lb).
6. Install the spark-plug wires.
40
20).
Figure 43