CONTROLLED COUPLING HYDRA-MATIC
FUNDAMENTALS
(pg 83)
g. The selector has one additional quadrant position--"PARK" --in addition to neutral, DR-4 or Drive-left, DR-3 or Drive-right, and reverse. | ||
h. While many other changes have been made, those listed above are the most notable in terms of operation and service. Operation is smoother and durability is improved. And servicing is more simple. For example, there is no longer any need for band adjustments, accessibility of some parts has been improved, and more elements can be serviced separately. |
B. GENERAL DESCRIPTION |
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1. The basic drive components of this transmission are as follows: | |||
a. The fluid coupling, which takes the place of the conventional clutch. | |||
b. The front unit with its planetary gearset, fluid clutch, (or front unit coupling), and a sprag clutch. |
NOTE: The fluid clutch
is also a fluid coupling. It replaces the old front
unit clutch pack and, when filled with oil, provides direct
drive.
c. The rear unit with its neutral clutch, sprag clutch, rear clutch, and planetary gearset. | ||
d. The reverse unit with its planetary gearset, stationary cone, reverse clutch apply piston. |