Quick adjust flotation apparatus for a crop harvester

Details Quick adjust flotation apparatus for a crop harvester Quick adjust flotation apparatus for a crop harvester

1985-07-05

1987-06-30

Peshock, Robert

Harvesters

Platform adjustments

56 158, 56 152, 172466, A01D 6700

Patent

active

046760539

ABSTRACT:
In a harvester wherein the frame is raised relative to ground wheels for roading purposes and such elevation of the frame stretches flotation springs to thereby lift the harvesting header off the ground, the amount of flotation force exerted by the springs on the header can be quickly and easily adjusted by only partially raising the frame and then inserting mechanical stops which prevent retraction of hydraulic lifting cylinders when pressure is relieved therein. By inserting a variable number of such stops in a stack, the flotation force can likewise be adjustably varied.

REFERENCES:
patent: 4073345 (1978-02-01), Miller
patent: 4137696 (1979-02-01), Webb
patent: 4177625 (1979-12-01), Knight et al.
patent: 4182099 (1980-01-01), Davis et al.
patent: 4270338 (1981-06-01), Halls
patent: 4585211 (1986-04-01), Griffin

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