Slave cylinder stabilizer for harvester header

Details Slave cylinder stabilizer for harvester header Slave cylinder stabilizer for harvester header

1997-07-17

1999-05-25

Melius, Terry Lee

Harvesters

Motorized harvester

With condition-responsive operation

56DIG15, 60472, A01D 4700, A01D 7528

Patent

active

059060891

ABSTRACT:
The windrower or other harvester has a hydraulic lift circuit for its header that includes a pair of double-acting cylinders which operate in concert to raise the header and provide a solid, lower limit for downward swinging of the header. The two cylinders are connected to one another in a master-slave relationship, and the slave cylinder has its return line normally blocked by a one-way check valve so that a body of fluid is trapped against the piston of the slave cylinder during field operations. This stabilizes the two cylinders to reduce header bounce.

REFERENCES:
patent: 3604205 (1971-09-01), Geselbracht et al.
patent: 3717995 (1973-02-01), Case
patent: 4622803 (1986-11-01), Lech
patent: 5415586 (1995-05-01), Hanson et al.
MacDon Operator's Manual for Model 9200/9300 Self-Propelled Windrower; Front and Back Cover, pp. 86-87 (Oct. 1995).

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