Hydraulic conditioner roll tension in pull-type mower conditioner
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United States of America Patent
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May 16, 2017
Grant Date -
Mar 23, 2017
app pub date -
May 11, 2015
filing date -
May 29, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A pull-type mower conditioner includes a crop cutting assembly that severs crop material from the ground and a lift mechanism configured to raise and lower the crop cutting assembly to a desired height having at least one lift cylinder and a hydraulic lift circuit supplying hydraulic fluid to the at least one lift cylinder. The mower conditioner also includes a conditioning mechanism receiving the severed crop material from the crop cutting assembly. The conditioning mechanism includes a pair of counter-rotating conditioning rolls to condition the crop material and a tensioning assembly that urges the conditioning rolls relatively toward one another and resists their separation. The tensioning assembly includes a pair of hydraulic tension cylinders and a hydraulic conditioner circuit configured to supply hydraulic fluid to the tension cylinders. The hydraulic tension circuit has a supply line leading to a supply valve, wherein the supply line connects to the lift circuit.
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