7720 rasp bars - The Combine Forum
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post #1 of 14 (permalink) Old 10-30-2011, 03:24 AM Thread Starter
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7720 rasp bars

Am putting new rasp bars on my 7720. Having a problem with one bar. Threaded the bolts through the top of the bar. The bottom bolt holes dont quite line up and I cant get the bolts through the bottom of the bar. Has anyone had this problem and how it can be overcome?Thanks for replies.

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post #2 of 14 (permalink) Old 10-30-2011, 09:37 AM
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Have you tightened and torqued your bars as you installed them ? I learned this the hard way once , the dealersip sent out a mechanic and he told me to loosen the bolts so that they were barely finger tight then install the remaining bars . Then start to tighten one bar at a time, then tighten the bar 180 degress opposite from it and work your way in that sequence. Hope this helps .

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post #3 of 14 (permalink) Old 10-30-2011, 10:33 AM
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Are they aftermarket bars? I have found that some aftermarket stuff doesn't fit exactly right like OEM stuff does
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post #4 of 14 (permalink) Old 10-30-2011, 07:56 PM Thread Starter
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7720 rasp bars

Thanks for the replies. I have tightened the bars one by one and will loosen them off, put the rest on and see how we go!
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post #5 of 14 (permalink) Old 10-31-2011, 10:40 AM
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Thanks for the replies. I have tightened the bars one by one and will loosen them off, put the rest on and see how we go!
Do you have the feeder house off too? I took my filler plates out through the top door with the feeder house still on. I still have a crease across my chest 1 1/2 year later

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post #6 of 14 (permalink) Old 08-12-2019, 11:16 AM
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Do you have the feeder house off too? I took my filler plates out through the top door with the feeder house still on. I still have a crease across my chest 1 1/2 year later

I know I am digging up an old thread but I am most of the way through changing rasp bars on FIL's 7720 with the feederhouse still on. Old bars are out, 6 new bars on so far. I am 6'5: and 240lbs. Very sore this morning in the chest and thigh area. The feederhouse WILL come off next time. Holy cow.
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post #7 of 14 (permalink) Old 08-12-2019, 12:49 PM
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Yes! and the feeder comes off real easy with a loader or forklift.
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post #8 of 14 (permalink) Old 08-13-2019, 08:14 AM
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Yes! and the feeder comes off real easy with a loader or forklift.

FIL has a NH skid steer and a JD backhoe, One of those will be used next time for sure. I put two more bars on last night after work. I will be glad when it is done haha. Hopefully tonight.
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post #9 of 14 (permalink) Old 08-13-2019, 09:38 AM
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FIL has a NH skid steer and a JD backhoe, One of those will be used next time for sure. I put two more bars on last night after work. I will be glad when it is done haha. Hopefully tonight.
Absolutely!!! I wish I could have "helped" rather than just shared the pain. Well worth the time to take off the feederhouse.
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post #10 of 14 (permalink) Old 08-13-2019, 04:13 PM
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Sure makes my changing rasp bars last year in my gleaner L look like a piece of cake. Worst thing I encountered was a few skinned knuckles and burnt the laces off my boots with sparks from cutting off some bolts. Never thought of them rolling out the front of the feeder house where I was standing while cutting.

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