New Holland LS140 Workshop Manual page 570

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Starter Construction

The reduction type starter consists of the armature,

housing, electric solenoid, drive pinion assembly and

reduction gears. In a conventional type starter the

armature and pinion rotate at the same speed on a

common shaft. In a reduction type starter the pinion

speed is reduced to about one-fourth armature

speed by the reduction gear. Armature, 1, rotation is

transmitted to the pinion, 2, via an idler gear, 3, and

the overrunning clutch, 4.

The overrunning clutch assembly consists of the

pinion, 1, pinion shaft, 2, ball bearings and

overrunning clutch which is a conventional design

with clutch rollers, 3, and roller springs, 4. Due to the

screw splines cut on the pinion shaft, the pinion gear

advances while rotating to mesh with the flywheel

SECTION 55 - ELECTRICAL SYSTEM

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