R62 Gleaner question.

[Fritz Maurer]

What is this accumulator plumbed into the header cylinders? With the ball valve closed, is this the reason the automatic header control randomly starts hopping? Majority of the time it's smooth as silk but starts these hopping fits for no apparent reason. Thanks Fritz

 

[moresmoke]

What is this accumulator plumbed into the header cylinders? With the ball valve closed, is this the reason the automatic header control randomly starts hopping? Majority of the time it's smooth as silk but starts these hopping fits for no apparent reason. Thanks FritzView attachment 131827

The accumulator lets the head act like it has float. Not 100% sure on a Gleaner, but not usually used with AHHC. More meant for using without on stripper heads and sometimes corn heads.

The pressure in the accumulator needs to be set correctly for the weight of the head.

 

[johnnmr]

We're running an r65, I run the flex and corn heads with that valve wide open to damper the auto head controls always hunting. It's a known defect with the hydraulic valves leaking internally making the electronics freak out trying to control the height. "Headsight" is the fix but I open the nitrogen valve instead.

 

[Bob Bancroft]

What is this accumulator plumbed into the header cylinders? With the ball valve closed, is this the reason the automatic header control randomly starts hopping? Majority of the time it's smooth as silk but starts these hopping fits for no apparent reason. Thanks FritzView attachment 131827

Remember when there were adjustable heavy coil springs on the header lift cylinders? This is a more convenient method of adding float.

 

[Fritz Maurer]

Remember when there were adjustable heavy coil springs on the header lift cylinders? This is a more convenient method of adding float.

Well, that came to mind initially.... except that with header springs, a spec in one combine manual says you should be able to lift a 15 ft.head with 25 lbs of force at the cutterbar. Opening the valve does not make the head any " lighter". With this accumulator tee'd into the lift line, the full weight of the head is still bearing down on the cylinders.... with the spring system, the hydraulic psi would be very close to zero, just enough to keep the springs from compressing completely.

In any case, I opened the ball valve today and the thing went wacky..... totally unmanageable. I closed the valve and just dealt with it's hourly fits.