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NH 489 haybine ?

H

Handsome Devil

Member
Finally got my 489 to cut and not self destruct. Had a belt pulley with bad bearing that was shaking the thing to death. With new guards and good sickle it cuts nice. The remaining problem is the reel won't spin then PTO is shut off like my older NH did. I am thinking there is some sort of slip clutch and see the belt pulley that has maybe 5-6 bolts holding it together for lack of better description. My shop manual is pretty sparse and mentions nothing about this I assume I loosen up the real and take this apart and find stuck/rusty parts? I redid a HN 275 baler where the "slip Clutch" {not proper name I am sure} was a pinned arrangement and I just had to clean it up to make it work again. Am I on the right track here? I never used this since buying it and assume the reel is supposed to be free wheeling when PTO is shut down. Do not know how to find link that might show this assembly? Anybody got some help with my lousy description? Thanks, John.
 

You mean the reel won't easily move with the machine shut off? Neither does my 488 or 472, or my Hesston 1120 for that matter. I suppose if you loosened up the drive belt it would. I usually have to put my weight on it to get it to move when doing sections or guards so I can access things.
 

When I was using my 469 and shut the PTO off the reel would free spin for a moment. On my 489 the reel is like direct drive. I never used a 489 but am assuming it is some sort of safety should things plug up or what ever. I do not know of anybody who has a 489 to ask. Have thought about pulling into driveways and ask people who I see have one.

I have heard horror stories of the chain breaking and taking out the wobble box on 489s. If it isn't supposed to be direct drive all the time I would like to correct that. And maybe it is fine the way it is. So I ask? Thanks.
 
I have run a NH 489 for about the last 15 years. The reel will free wheel a little when you throw the pto out of gear. There is a
sort of over-running clutch that allows the free- wheeling when the pto is off. If anything is a bit rusty or tight that may be
preventing the free wheeling. (sections rubbing on guards, hold down clips too tight etc.)
 

That is what I thought and why I asked thank you for responding. It seems to be "tight" and I think the "wiggle" room or looseness would be by design. I for health reasons am quitting the hay business. I want this thing running correctly before I sell it. I see the one belt pulley is assembled so I am thinking it is like you say an over riding clutch of sorts. I have a parts machine guess I will take that one apart to see what is inside and go from there. It is hard for me to work on machinery so this project is taking a lot of time. I do have about 3 guards that I need to adjust and bend down. Rest are good as are clamps. Getting down on the ground/bending for any length of time is particularly hard on my body. So there is some deferred priorities when coming to repairing equipment. It is almost there and now I am going to sell it. Figures it seems like a nice machine and much better than my old haybine. Thanks again for your thoughts. Regards, John.
 
Do the conditioning rolls free wheel when pto is shut off? (They may even when reel and cutterbar have stopped )I would get those
bent guards straightened or changed and see if that helps .
 
It should turn backwards without much effort. When you try to roll it forward, it
tightens the belt drive and tries to turn the whole machine.

Ben
 
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