[screamin9860974]

We have a 9860 with a 12 36 inch corn head and it has a hard time lifting the header but it picks our 30 foot macdon up fine, the machine has about 1500 engine hours and about 1000 seperator hours. Our local dealer says there is an update to do on the cylinders and was wondering if anyone had any info on this problem. Thanks for any information

 

[Tom Turner]

Do you have the 70 MM or 80 MM cylinders on the feeder house, 80 mm is for a 12 row.

 

[screamin9860974]

We have the 80mm, our local dealer says there is no way to turn up the pressure?? I need more info on that if possible. They're comin tomorrow to put on a new hydraulic pump for the header so I'll get them to check the pressure then. Thanks for the info.

 

[Tom Turner]

The relief pressure for 60 series combines is 3190 +or - 150psi. If the relief pressure does not meet the spec and the pump flow is 16 gal. per minute, install shims for the relief valve.

If the relief pressure does not meet the spec and the pump flow is 16 gal. per minute, install shims for the relief valve. Order and install shims R27170. The shims are .010" thick and one shim will increase pressure approximately 100 psi.



To install the shims place a vacuum pump on the hydraulic reservoir. Then remove the plastic cap on top of the valve. (see attached picture for location) 62476.jpg Use a deep well socket and remove the threaded cap that holds the shims and spring in place. Carefully remove the cap and install shims in the under side of the cap with grease so that the shims set on top of the spring. Use 1 shim per 100 psi increase.

 

[screamin9860974]

Thanks for the information, I'm gonna give it a try when we get a chance