1956 AMC Hudson Technical Service Manual Supplement
1956 AMC Hudson Technical Service Manual Supplement
1956 AMC Hudson Technical Service Manual Supplement
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42<br />
FIRST SPEED D-4 RANGE<br />
When the manual valve is moved to the D-4 position, main line pressure is directed to<br />
the same control units as in neutral. In addition, another passage is opened at the manual<br />
valve and oil flows past the manual valve and is directed to the neutral clutch.<br />
The front unit coupling is empty, the front sprag clutch is on and the front unit is in<br />
reduction.<br />
The neutral clutch is applied and the rear clutch is released. The rear sprag clutch is<br />
on and the rear unit is in reduction.<br />
The front unit being 40% reduction and the rear unit 60% reduction power passes to<br />
the output shaft with 100% reduction for first speed.
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