Hydraulic system for unitized raking implement
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United States of America Patent
Stats
-
Nov 3, 1987
Grant Date -
N/A
app pub date -
Sep 24, 1986
filing date -
Sep 24, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hydraulic system for unitized raking implements having hydraulically driven left and right rake baskets positionally movable by hydraulic steering cylinders, hydraulic swing cylinders and hydraulic lift cylinders is disclosed wherein all the hydraulically actuated components on the implement can be operatively powered from a single hydraulic circuit from the prime mover. A selector valve divides the flow of fluid coming from the prime mover hydraulic system into first and second loops. The first loop directs hydraulic fluid to the hydraulic motors and lift cylinders in such a manner that whenever the hydraulic motors are operated the hydraulic lift cylinders position the rake baskets into a lowered operating position. The second loop directs hydraulic fluid to the steering and swing cylinders, the flow between which being controlled by a control valve corresponding to each of the rake baskets.
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