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New Holland 472 haybine

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Joined: 23 May 2013
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PostPosted: Thu May 23, 2013 5:23 pm    Post subject: New Holland 472 haybine Reply to specific post Reply with quote

I need help. I have an older NH 472 hay-bine with the slip clutch on the gear box. I thought I had everything ready to cut hay in the morning, new sickle blades and all. I was hooking up late this evening and ran it a minute an noticed the big pulley that the drive belt is on was wobbling. I rotated the rollers and saw where a set screw on this pulley ( at the slip-clutch) was missing. I need to know if the set screw rests in a hole in the shaft or is just a set screw that tightens down on the shaft. I really need to start cutting tomorrow so any help is appreciated. Sorry for long post but I need help.
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Tractor Guru

Joined: 12 Aug 2002
Posts: 9354
Location: Hilbert, Wi

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PostPosted: Thu May 23, 2013 6:02 pm    Post subject: Re: New Holland 472 haybine Reply to specific post Reply with quote

No experience with NH, but most often they are either right on the shaft, or on a key. If you want, stick a drill down the hole and put in a drill spot to seat the screw in. Use a 5/16 drill for a 3/8 set screw, or a 1/4 drill for a 5/16 set screw.

Donovan from Wisconsin
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