Sachs SA 280A - Page 45

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ENGINE WITH BOSCH INERTIA-PINION TYPE
STARTER
(Type DG)
Fig. 62
To remove starter , unscrew 2 nuts
(
3) M 8 with spring washers .
Fig. 62
The pinion of the inertia -pin ion type starter (Fig. 62) sl ides on a coarse thr e ad on the
armature shaft. In rest position the gear is held back by spring te nsion and the pinion
is not engaged . Wh en the starter is operated , the acceleration of t he starte r and the
i nertia of t he pinion result in a force which c auses the pinion to run along the shaft
and enga ge with the gear rim. When the pinion has re ach ed the stop on the arma ture
s haft the drive b ec ome s positive and the engine is turned by the starter .
If,
after starting, the e ngine be gins to overtake the star te r, the pinion is uncoupl ed
from the armature sha ft by an overrunning roller clutch and is spun back by sp ri ng
pressure in to rest position.
Note:
On s ubsequ ent ins tallation of an i nertia-pinion type starter, on ly the m agn eto housing
with s tee l rim (F & S Part No. 1471 007 000) can be used .
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