Tractor-implement hydraulic system

Details Tractor-implement hydraulic system Tractor-implement hydraulic system

A - Human Necessities

01

B

138/72.1

A01B 63/22 (2006.01) A01B 63/102 (2006.01)

Patent

CA 1103555

TRACTOR AND IMPLEMENT AND HYDRAULIC SYSTEM THEREFOR Abstract of the Disclosure A hydraulic system is provided for an integrally-mounted agricultural implement which permits control of the tractor three-point hitch rockshaft cylinder, upper draft link hydraulic cylinder and lift assist hydraulic cylinder through a single valve control lever. One end of the double-acting lift assist cylinder is plumbed in parallel with the single-acting rockshaft cylinder and the other end of the lift assist cylinder is plumbed in parallel with the single-acting upper link cylinder. The fluid lines are coupled with a single control valve to permit the implement to be supported by the lift assist wheel and three- point hitch during transport, permit it to rock about the lower connection with the three-point hitch during transport and float vertically at the hitch connection during field operations while operating with the lift assist wheel elevated.

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