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Implement Alley Discussion Forum

how to inspect NH 489 wobble box

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peterng

04-20-2008 19:00:48




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There is a NH489 haybine at a local aucton this coming saturday. If I knwe how to inspect the wobble box with the unit stationairy I may consider it.

Can anyone tell me how to do this. All I know is that the wobble box is at the end of the sickle perhaps ? pictures would be helpfull. I can"t even find a picture of what a wobble box looks like. An explanation of what it does might help me find if if I understand its function.

Sorry for the lack of insight, just starting a 5 year journey to acquiring used haying equip.
Thanks,
Pete

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Allan In NE

04-21-2008 04:19:24




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 Re: how to inspect NH 489 wobble box in reply to peterng, 04-20-2008 19:00:48  
Most of those NH wobble boxes are pretty much the same.

A simple trunion affair afixed to a "bent" shaft, which rides on two opposing "wheel bearings" within the "box".

Grab it and give it a shake.

Allan

third party image



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JMS/.MN

04-20-2008 20:51:18




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 Re: how to inspect NH 489 wobble box in reply to peterng, 04-20-2008 19:00:48  
The wobble box is at the left end of the cutterbar, driven by a belt, so it transmits rotary motion into reciprocal motion...ie- it drives the sickle back and forth. Judging wear on the internal gears is a judgmental thing, by comparing various machines. Move the belt, observe how soon the output moves. Other judgment is...is oil leaking, then the seals are bad. Maybe the shafts as well. Machine is decades old- don"t expect new. Other expectations- rubber on the rolls- likely more expensive to replace.

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peterng

04-21-2008 04:18:11




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 Re: how to inspect NH 489 wobble box in reply to JMS/.MN, 04-20-2008 20:51:18  
JMS,

Awesome response. exactly what I was looking for.

Thanks,
Peter



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jason, NW Ontario

04-21-2008 12:31:13




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 Re: how to inspect NH 489 wobble box in reply to peterng, 04-21-2008 04:18:11  
For what it's worth, I've had a 489 for 3 summers, and have found it a really dependable machine. Course, I'm only mowing 35 acres most years. This summer might be more like 135, so this will be the real test year.
Good Luck with the auction. Maybe post some results?

Jason



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peterng

04-21-2008 17:59:17




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 Re: how to inspect NH 489 wobble box in reply to jason, NW Ontario, 04-21-2008 12:31:13  
I'll post them if I decide to go. I went last saturday and based on the equip in the yard I judged the 489 to have some substantial use and be in poor to fair condition. Hard to take a chance on at auction.

From what I've heard from our accountant (who has 22 years experience dealing with farmers) there will be a LOT of people involved with traditional farming activities getting out soon. Get your name out there and get some offers in before the bank moves in was his recommendation. Then I can talk to the owner of the machine. Hard pressed to take a chance at an auction is my feeling now.

Don't mind buying used, but this forum helps narrow down the safe bets and those popular models will come around.

I'll certainly post the results if I end up going. Here's the link to the auciton site (goto off site unreserved auction):

Link

Here's a local web site that shows some local private prices that I really like:

Link

I need to find out more about this NH 276 hayliner baler. For $1500 that sounds like a good deal.

Thanks,
Pete

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