Hydraulic cylinder mode shift

Details Hydraulic cylinder mode shift Hydraulic cylinder mode shift

1989-07-10

1990-06-05

Neuder, William P.

Harvesters

Motorized harvester

With selective control of drive means

56 119, A01D 6903

Patent

active

049302957

ABSTRACT:
A crop harvesting machine having mounting arms engageable with a tractor to effect a mounting of the harvester on the tractor is disclosed wherein the hydraulic cylinders used to raise the crop gathering header are double-acting cylinders operable to orient the mounting arms relative to the crop gathering header to facilitate engagement thereof with the tractor. These hydraulic cylinders are converted from double-acting cylinders to single-acting cylinders after the header is mounted on the tractor by disconnection of the hydraulic hose powering a downward movement of the header and the subsequent connection thereof to the return line for the hydraulically driven motor powering operation of the crop gathering header.

REFERENCES:
patent: 4043099 (1977-08-01), Cheatum
patent: 4059171 (1977-11-01), Pakosh
patent: 4631907 (1986-12-01), Zirps
patent: 4685340 (1987-08-01), Shust et al.
patent: 4703612 (1987-11-01), Webster

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