Servicing The Spark Plug; Adjusting The Self-Propel Drive - Toro 22290 Operator's Manual

Engine Oil Specifications (cont'd.)
Engine oil capacity
Oil viscosity
API service classification
1. Shut off the engine and wait for all moving parts
to stop.
2. Disconnect the wire from the spark plug.
3. Drain the fuel from the fuel tank.
4. Place a suitable drain pan under the dipstick/oil
drain.
5. Clean around the dipstick.
6. Remove the dipstick by rotating the cap
counterclockwise and pulling it out.
7. Tip the machine onto its right side (air filter up)
to drain the oil into the drain pan.
8. After draining the oil, return the machine to the
operating position.
9. Fill the crankcase to the correct level on the
dipstick with fresh oil; refer to
Crankcase with Oil (page
10. Insert the dipstick into the filler neck and rotate
the cap clockwise until it is tight.
11. Wipe up any spilled oil.
12. Recycle the used oil according to local codes.

Servicing the Spark Plug

Service Interval: Every 100 hours—Inspect, clean,
and adjust the spark plug gap;
replace the spark plug if necessary.
Use an NGK BPR5ES spark plug or equivalent.
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:
Replace a cracked, fouled, or
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);
refer to Figure 21.
0.65 L (22 fl oz)
SAE 30 or SAE 10W-30
detergent oil
SJ or higher
5 Filling the
8).
1. Center-electrode insulator
2. Side electrode
3. Air gap (not to scale)
6. Carefully install the spark plug by hand (to avoid
cross threading) until it is hand tight.
7. Tighten the spark plug to 23 N∙m (2.3 kgf-m, 17
ft-lb).
Important:
A loose spark plug can become
very hot and can damage the engine;
overtightening a spark plug may damage the
threads in the cylinder head.
8. Connect the wire to the spark plug.
Adjusting the Self-Propel
Drive
If the machine is new, does not self-propel, or it tends
to creep forward, adjust the drive cable.
1. Move the machine outside and onto a paved
surface near a solid wall to safely prevent the
machine from moving forward while the engine
is running.
2. Position the machine with the front tires against
the wall.
Note:
Ensure that the area is well ventilated
and clear of debris that could be thrown by the
machine.
3. Shift the transmission to third gear.
4. Start the engine; refer to
(page 15).
5. Pull the self-propel-drive bar to the handle.
Note:
The wheels should start to turn as the
self-propel-drive bar just touches the handle.
6. Shut off the engine.
7. If you must adjust the machine, do the following:
•
If the wheels do not spin when you engage
the self-propel-drive bar, the traction belt is
too loose. Rotate the wheel-drive-control
22
Figure 21
Starting the Engine
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