Enclosed Shift Lever Type
( H e a v y Duty) CRANKING MOTORS
Figure l-Typical enclosed shift lever type heavy duty cranking motor.
The heavy-duty cranking motor has a shift lever
Positive lubrication is provided to the bronze
and solenoid plunger that is totally enclosed to pro-
b u s h i n g s by an oil saturated wick that projects
tect them from exposure to dirt, icing conditions
t h r o u g h the bushings and contacts the armature
and splash.
shaft. Oil can be added in each wick by removing a
pipe plug which is accessible on the outside of the
motor.
A positork drive (fig. 2) is moved into mesh
with
the ring gear by the action of the solenoid. The
pin-
ion remains engaged until starting is assured
and
the solenoid circuit is interrupted. In case of a
butt
engagement, the motor will not be energized to
pre-
vent damage to the pinion and gear teeth.
MAINTENANCE
Under normal operating conditions, no mainten-
a n c e will be required between engine overhaul
periods. At time of engine overhaul motor should
be disassembled, inspected, cleaned and tested as
Figure 2-Positork drive.
described in succeeding paragraph.
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