Changing The Engine Oil; Servicing The Spark Plug - Toro HoverPro 400 Operator's Manual

Changing the Engine Oil

Service Interval: Yearly
Note:
Run the engine a few minutes before changing
the oil to warm it. Warm oil flows better and carries
more contaminants.
Engine Oil Specifications
Engine oil capacity
Oil viscosity
API service classification
1. Ensure that the fuel tank contains little or no fuel
so that the fuel does not leak when you tip the
engine onto its side.
2. Refer to Checking the Engine-Oil Level (page
3. Remove the dipstick by rotating the cap
counterclockwise and pulling it out
Figure 19
1. Full
2. High
4. Tip the machine onto its side (so that the air filter
is up) to drain the used oil from the oil-fill tube.
5. After draining the used oil, return the machine to
the operating position.
6. Carefully pour about 3/4 of the engine capacity
of oil into the oil-fill tube.
7. Wait 3 minutes for the oil to settle in the engine.
8. Wipe the dipstick clean with a clean cloth.
9. Insert the dipstick into the oil-fill tube, but do not
screw it in, then remove the dipstick.
10. Read the oil level on the dipstick
•
If the oil level on the dipstick is too low,
carefully pour a small amount of oil into the
oil-fill tube, wait 3 minutes, and repeat steps
0.59 L (20 fl oz)
SAE 10W-30 multigrade
mineral oil
SJ or higher
(Figure 19).
g017530
3. Low
(Figure 19).
8 through
is correct.
•
If the oil level on the dipstick is too high,
drain the excess oil until the oil level on the
dipstick is correct.
Important:
low or too high and you run the engine, you
may damage the engine.
11. Install the dipstick into the oil-fill tube securely.
12. Recycle the used oil properly.

Servicing the Spark Plug

Service Interval: Every 100 hours
Use a Champion RN9YC spark plug or equivalent.
9).
1. Shut off the engine and wait for all moving parts
to stop.
2. Disconnect the wire from the spark plug.
3. Clean around the spark plug.
4. Remove the spark plug from the cylinder head.
Important:
dirty spark plug. Do not clean the electrodes
because grit entering the cylinder can
damage the engine.
5. Set the gap on the plug to 0.76 mm (0.030 inch)
as shown in
1. Center-electrode insulator
2. Side electrode
3. Air gap (not to scale)
6. Install the spark plug.
7. Torque the plug to 20 N∙m (15 ft-lb).
8. Connect the wire to the spark plug.
16
10 until the oil level on the dipstick
If the oil level in the engine is too
Replace a cracked, fouled, or
Figure 20.
Figure 20
g000533