Brake Maintenance; Adjusting The Parking Brake - Toro 22615 Operator's Manual

2. Pull the wire off the spark plug (Figure 15).
Figure 15
1. Spark plug
3. Clean around the spark plug.
4. Remove the spark plug and the metal washer.
Checking the Spark Plug
1. Look at the center of the spark plug (Figure 16). If you
see light brown or gray on the insulator, the engine is
operating properly. A black coating on the insulator
usually means that the air cleaner is dirty.
Important: Never Clean the spark plug. Always
replace the spark plug when it has a black coating,
worn electrodes, an oily film, or cracks.
Figure 16
1. Center electrode insulator
2. Side electrode
2. Check the gap between the center and side electrodes
(Figure 16). Bend the side electrode (Figure 16) if the
gap is not correct.
Installing the Spark Plug
1. Thread the spark plug into the spark plug hole.
2. Tighten the spark plug to 27 N-m (20 ft-lb).
3. Push the wire onto the spark plug.
2. Wire
3. Air gap (not to scale)

Brake Maintenance

Adjusting the Parking Brake

1. Loosen the set screw on side of brake lever knob. Turn
the knob clockwise to tighten the brake; adjust counter
clockwise to loosen the brake. The left wheel should
lock completely when the brake is set.
2. Tighten the setscrew.
15