Control device of the lifting jack and of a jack of the upturn of a plow.

摘要

Device for operating a single-acting cylinder (3) for raising the hind carriage of a plough and a dual-acting cylinder (4) providing the overturning of the said plough, successively ensuring lifting then overturning. It includes: - a direct connection between the distributor (1) and the cylinder (3), - a ball-type selector (18) between orifices (7, 8) which are connected to the distributor (2), the central point of which is connected to the cylinder (3) by a pipe (19) including a non-return valve (20), - two driven sequencing valves (21a, 21b) with adjustable preload located between the distributor (2) and the chambers (4a, 4b) of the cylinder (4). IMAGE