HB knife head bearings - Page 2 - The Combine Forum
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post #11 of 13 (permalink) Old 10-05-2018, 05:24 PM
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Agco suggests greasing knife head bearing 2-4 pumps every 12 hours.
And the knife drive must be operated at a speed of 650 rpms measured at the flywheel.
Should be easy enough to check if the speed is correct?

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post #12 of 13 (permalink) Old 10-05-2018, 06:12 PM
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Quote:
Originally Posted by MF cowboy View Post
Agco suggests greasing knife head bearing 2-4 pumps every 12 hours.
And the knife drive must be operated at a speed of 650 rpms measured at the flywheel.
Should be easy enough to check if the speed is correct?
I think he mentioned 1400 which would equal 700rpm. My Dealer likes to set them around 12-1250 stks/min causes a lot less trouble they told me

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post #13 of 13 (permalink) Old 10-05-2018, 08:36 PM
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That seems strange. We have had several Massey swathers and now a New Holland/Honey Bee header and done several thousand acres with them and never had to replace a single bearing. We change the plastic bushing every couple years as they give out but not the bearings. These are all single knife drives on 25,30 and 36 feet. Mind you they aren't usually plugged with mud.

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