Ih 856 seat

Jkittle · Apr 12, 2014

I just recently purchased an ih 856 diesel. We just got it home and were messing with the seat, which is a hydraulic seat. The seat went up to far, sprayed hydraulic fluid everywhere and won't go back down. Does this mean that we will have to buy a new cylinder or valve. Any input would be greatly appreciated.

Jim Naden · Apr 13, 2014

(quoted from post at 18:31:33 04/12/14) I just recently purchased an ih 856 diesel. We just got it home and were messing with the seat, which is a hydraulic seat. The seat went up to far, sprayed hydraulic fluid everywhere and won't go back down. Does this mean that we will have to buy a new cylinder or valve. Any input would be greatly appreciated.

Put it back together and add a positive vertical limiter device (chain) to keep the suspension from over extension.

Allan in NE · Apr 13, 2014

No,

The piston is free to blow right out the top of the cylinder and is limited in it's upper travel by the seat suspension.

Take the seat off by removing the 4 bolts holding the tracks to the suspension. Then remove the suspension from the floor of the tractor by removing the bigger four bolts.

The suspension linkage rearward of the piston is most likely broken. Make darned sure you weld it back in the same original position.

This would be a good time to reseal the cylinder and replace the eight suspension bushings. Recharge the accumulator to 40-50 lbs of shop air.

Make a mental note of how those hydraulic lines attach. You don't want to cross 'em going back together.

Allan

Ih 856 seat

Jkittle

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Jim Naden

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Allan in NE

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