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I am just wondering if anybody has any knowledge on the drive on these mowers, it appears like some cone sort of setup, when you pull the lever it seems to rotate and twist in and this seems to lock the drive.
G'day Norm
The drive is of similar design to the first Autodrives of the 1970s.
It uses worm gear reduction to an output shaft where coil springs
grab the drive sleeves leading to the LH and RH wheel pinions.

The double advantage is that loosening of the spring when a
wheel pinion would exceed the speed of the final drive shaft [when
turning, the outside wheel speed would exceed the drive speed]
meant that differential action could be achieved.

By this time, it was a well-proven system.

Cheers
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Jack

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