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Implement Alley Discussion Forum

Timing NH 68 Baler

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ScottSD

07-17-2006 08:44:00




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Hello,

I have a NH 68 Baler that is out of time. When the needles are up and into the knotter, the plunger is still trying to close. Does any body have any information on how to time this?

Basically what happened is I took off the chain drive for the knotter and it got messed up.

Other than that, I think this baler works and since I recently purchased a model 273, I do not need the model 68 and was planning on selling it.

Any input on this would be greatly appreciated.

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NH68

07-20-2006 09:33:37




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 Re: Timing NH 68 Baler in reply to ScottSD, 07-17-2006 08:44:00  
Hi,
We've got a super 68. We timed it according to the manual. Then we went to cycle it through and the needles were still in the chamber as the plunger came back. (They hit) We put it back how it was and have been using it that way. The needles don't clear the plunger by 3/4" like it says in the front lid but it works fine. I have a suspicion the knotter drive clutch is worn or something so following the manual gets you in trouble. Anybody else have this problem or know what it could be?
Thanks and good luck

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bvomark

07-18-2006 06:41:10




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 Re: Timing NH 68 Baler in reply to ScottSD, 07-17-2006 08:44:00  
I have a NH 277 that I broke a chain on recently. When I timed it according to the timing marks it was improperly timed and broke the needle. I talked to the service rep at the dealer and he said to time it with the other method in the manual. His reason for this was that the older balers have too much play or slop to be timed with the timing marks. For my 277 that means that the needle should enter the chamber 1/4" when the plunger is 1/4 to 3/4" past the tip of the needle.

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ScottSD

07-18-2006 11:50:13




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 Re: Timing NH 68 Baler in reply to bvomark, 07-18-2006 06:41:10  
This is interesting. I wondered if there wasn't a different issue.

I timed it with the marks last night and turned the flywheel by hand without any problems. I was going to fire it up with the tractor tonight.



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Rexalot

07-17-2006 12:22:29




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 Re: Timing NH 68 Baler in reply to ScottSD, 07-17-2006 08:44:00  
You might try to find Kelly C"s website. It has pictures and text on how to time this baler.

Otherwise,

Here"s how you can get things back into time. Lift the lid for for the plunger (panel on the front top l/h side) and locate the two timing marks if still visible. You want to put the plunger arm vertical between the two marks by turning the fly wheel. The plunger arm should be out the top of the frame should you not see the marks.

Next from the back of the baler open the panel just to the right of the needle brake. There are two timing marks on the lip of the frame. Like the others, they may have rusted away... anyway be sure that the tine bar where it attaches to the drive chain is between these two points. If not visible, the pin that attaches the tine bar to the chain will be approx 2 to 3 inches when measured from the lip of the left side. There is a placard in here that should show this unless yours is painted over or missing.

Next, make sure the needles are in the "home" position. Pull them all the way aft.

Now, looking at the knotter group, where the drive chain sprocket is you should see two horizontal lines. These need to be lined up. Remove the chain and turn the outside sprocket until they line up as close as possible, within a 1/4 inch.

Manually trip the knotters and rotate the flywheel until the tying cycle completes. Done. Do a couple of cycles to be sure. When completed the horizontal lines on the knotter group will be within a 1/2 inch or less.

This is also a good time to check that the pluger stop is working correctly.

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ScottSD

07-17-2006 13:08:09




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 Re: Timing NH 68 Baler in reply to Rexalot, 07-17-2006 12:22:29  
This is great info.

I noticed you talk about Kelly C's website. Could you save me the trouble from searching for this and let me what his site is?

Thanks,

Scott



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Rexalot

07-18-2006 04:34:32




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 Re: Timing NH 68 Baler in reply to ScottSD, 07-17-2006 13:08:09  
Try this link:

http://ns2.genesis-technology.com/~kvp/timing_my_nh_68.htm



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