Apparatus with rear and front power lift, common regulating and

Details Apparatus with rear and front power lift, common regulating and Apparatus with rear and front power lift, common regulating and

1983-04-12

1985-08-27

Stouffer, Richard T.

Earth working

Automatic power control

Draft responsive

172300, A01B 63112

Patent

active

045372608

ABSTRACT:
An apparatus for a tractor having a rear and front implement attachment mechanism. Each such mechanism has a hydraulic power lift which acts on it. The power lifts have in common a regulator and control device with a changeover valve. By activating this changeover valve, selectively one of the power lifts can be regulated in conformity with the provided adjustment features, such as the actual values of the position, of the cylinder pressure, etc., while at the same time the other power lift is connected with a control member for random influence of this last-mentioned power lift.

REFERENCES:
patent: 2973043 (1961-02-01), Elfes
patent: 3003568 (1961-10-01), Merritt et al.
patent: 3048981 (1962-08-01), Mark et al.
patent: 4269427 (1981-05-01), Van der Lely

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