Hagen Brothers farms,Goodrich ND | The ones on IH,and I am sure other combines are just TEEd into the single acting header lift cylinders line. They have a needle valve with a hand wheel attached to the in/out fitting of the accumulator,that lets you adjust the shock absorber action of the accumulator. Nearly closed gives a very stiff shock absorber,nearly open makes a very soft nitrogen spring. If line pressure varies from what the combine would use,then you may have to adjust the nitrogen charge pressure up/down.
Edited by Jon Hagen 7/12/2006 17:17
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