Figure 14-6. Gear Reduction Starter
crank the engine. As soon as the engine transmits
the flywheel gear. After the gears are in mesh, continued
power through the pinion in a reverse direction, the
movement of the pedal operates the starter switch and
pinion and rotor assembly is driven by the flywheel. This
causes the starter to crank the engine. In case the
action tends to work the rollers back against the plungers
pinion does not mesh perfectly with the flywheel, further
to where the space is greater, causing a slipping or
motion of the shift lever compresses a spring so that the
overrunning action. As a result, the clutch cannot be
pinion will snap into place the instant the starter armature
driven in this direction. This prevents excessive speeds
begins to rotate. After the engine has started, releasing
of the starter.
the starter pedal will pull the pinion out of the mesh.
d. Pedal Shift (Fig. 14-8). With this type of
Solenoid Shift (Fig.
starting mechanism, the starter pinion is meshed when
overrunning clutch pinion gear in mesh with the flywheel
the driver presses the starter pedal. When the yoke
gear is made automatic on a good proportion of modern
lever is moved by the action of the driver in stepping on
vehicles by the use of a solenoid.
the starter pedal, the pinion gear is shifted into mesh with
Figure 14-7. Overrunning Clutch.