Drive System Maintenance; Adjusting The Self-Propel Drive Cable; Figure 38 - Toro 22155 Operator's Manual

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 0.030 in. (0.76 mm)
(Figure 37).
Figure 37
1. Center-electrode insulator
2. Side electrode
3. Air gap (not to scale)
6. Install the spark plug and the gasket seal by hand.
7. Tighten the plug 1/2 turn after the spark plug seats
to compress the washer.
Note: When installing the original spark plug again,
tighten 1/8 to 1/4 turn after the spark plug seats to
compress the washer.
Note: Under-tightening the spark plug can cause the
plug to become very hot and can damage the engine.
Overtightening the spark plug can damage the threads
in the engine cylinder head.
8. Connect the wire to the spark plug.
Drive System
Maintenance
Adjusting the Self-propel Drive
Cable
Self-propel model only
Whenever you install a new self-propel cable or if the
self-propel drive is out of adjustment, adjust the self-propel
drive cable.
1. Loosen the cable support nut (Figure 38).
1. 1 to 1-1/2 inches (25 to 38
mm)
2. Self-propel-drive bar
3. Cable jacket
2. Hold the self-propel bail 1 to 1-1/2 inches (25 to 38
mm) from the handle (Figure 38).
3. Pull down the cable jacket (toward the machine) until
there is no slack in the cable (Figure 38).
4. Tighten the nut on the cable support.
5. Release the self-propel-drive bar and ensure that the
cable is loose.
Note: The cable must be loose with the self-propel
drive bar in the released position; otherwise, the
machine may creep when you disengage the bar.
19

Figure 38

4. Cable-support nut
5. Cable support