DRAFT CONTROL ON TRACTOR PDF
DRAFT CONTROL ON TRACTOR MANUAL

The tractor hitch is raised and lowered with respect to the tractor by one or more hydraulic rams or actuators which are usually under control of a valve having supply, neutral and discharge positions.

DRAFT CONTROL ON TRACTOR MANUAL

Tractors having a Ferguson type three-point hitch include those having draft control systems in which the draft or working force developed by the implement drawn by the tractor is maintained relatively constant by increasing and decreasing the working depth of the implement as the draft force decreases or increases, respectively, from a selected value determined by the setting of a manual control lever. A01B63/11- Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means for controlling weight transfer between implements and tractor wheels.A01B63/112- Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements to control draught load, i.e.A01B63/111- Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements.A01B63/10- Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means.A01B63/02- Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors.A01B63/00- Lifting or adjusting devices or arrangements for agricultural machines or implements.A01B- SOIL WORKING IN AGRICULTURE OR FORESTRY PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL.A01- AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING.Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links HENRY SCHRODER BANK & TRUST COMPANY, A NEW YORK BANKING INSTITUTION AS TRUSTEE reassignment SIEVERS, GEORGE R., AS INDIVIDUAL TRUSTEE SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Massey Ferguson Inc filed Critical Massey Ferguson Inc Priority to US55218966 priority Critical patent/US3412811A/en Application granted granted Critical Publication of US3412811A publication Critical patent/US3412811A/en Assigned to SIEVERS, GEORGE R., AS INDIVIDUAL TRUSTEE, J.

Original Assignee Massey Ferguson Inc Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number Inventor Howard G Thompson Current Assignee (The listed assignees may be inaccurate.

DRAFT CONTROL ON TRACTOR PDF

Google Patents Draft control for tractorĭownload PDF Info Publication number US3412811A US3412811A US55218966A US3412811A US 3412811 A US3412811 A US 3412811A US 55218966 A US55218966 A US 55218966A US 3412811 A US3412811 A US 3412811A Authority US United States Prior art keywords draft linkage spring tractor control Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US3412811A - Draft control for tractor

Draft control on tractor