CASE 8240 Feeder House Shuts Down - The Combine Forum
 
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post #1 of 8 (permalink) Old 10-13-2019, 01:29 AM Thread Starter
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Question CASE 8240 Feeder House Shuts Down

The feeder house on our CASE 8240 is shutting down. We've replaced a speed sensor and then eliminated it on a drive to try to fix it, but it doesn't work.


It doesn't pull down. The head just stops. Any ideas? We're stumped.

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post #2 of 8 (permalink) Old 10-13-2019, 07:55 AM
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My 8120's seat switch started going bad and occasionally did this. I just bypassed it.

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post #3 of 8 (permalink) Old 10-13-2019, 10:56 AM
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Does the computer beep before shutting down? I think normally it beeps when it shuts down due to the seat switch is not closed. I can't remember if the monitor shows a message or icon when this happens.

Unfortunately bypassing the switch on the 40 series is a bit harder as they've made the computer a bit too smart, unlike the older machines.
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post #4 of 8 (permalink) Old 10-13-2019, 10:56 PM
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I would second torriem’s question have there been any alarms that have come up on the screen? How long will it stay engaged? Is the disengagement consistent in as it goes for five minutes then disengages or is it erratic? What kind of engine loads are you seeing before it disengages? Is the feeder speed rpm on your screen consistent or does it jump around? Typically if it is something to do with the speed sensor you will get a feeder house slow alarm then disengagement.
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post #5 of 8 (permalink) Old 10-14-2019, 02:40 AM
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The speed sensor in the "mickey mouse" gearbox are very reliable but are prone to picking up metal filings and covering the magnet on the end. Normally the first thing is to clean and reinstall the sensor. You may have a gearbox issue and the new sensor is covered in filings again.

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post #6 of 8 (permalink) Old 10-20-2019, 12:04 AM
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I worked on a 9120 a couple years ago. First complaint was feeder would randomly shut off. Second was hydro was low on power. Initially I didn’t care about the hydro because this was a rice harvester so flat ground +-1”. Until the next complaint came that the rotor was plugging too easy. All three use hydros. They all use the same charge pump to charge the hydros. Charge psi is supposed to be 425psi at idle. Charge psi is then regulated down to 300-330 psi for control psi. I think if the two pressures are too close then clutches lose lock up pressure or hydros loose charge. Every machine from 20 series up have been low in my area. Including 40 series after a couple hundred hours. On the electrical side I have repaired the harness at the CVT valves on a lot of machines.
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post #7 of 8 (permalink) Old 10-24-2019, 03:34 PM
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First start with the feeder engagement calibration... If anything is wrong with a sensor, pressure or switch, a fault code will pop up
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post #8 of 8 (permalink) Old Today, 12:17 AM
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Sorry to jump your thread but many times new holland cr combines share issues. Tonight my 9090 shut header off but said my feeder reverser was engaged..any idea on that and does a Case have the same switch?
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