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Baler trouble

B

burnt

Well-known member
Joined
Feb 28, 2008
Messages
6,617
Location
Mid-western Ontario
Our NH648 was giving me a ton of trouble Saturday, actually started Friday when I put in a new roll of netwrap. It seems the knife does not drop cleanly or heavily enough to make a clean cut when the Bale Command tells it to drop.

It's like it makes a little bounce when it hits the netwrap and then just chews it off with long ragged webs of netting hanging off of the bales, rather than making a nice even job like it used to. Sometimes it won't cut it at all and I have to get off the tractor and lift the knife head and drop it manually. When I did that, it cut it perfectly. But the dang thing is to do it by itself.

Even if the new roll of netwrap was stronger material, it should still cut it, I think. Had the dealer out last year to check it out when it did this and he couldn't find a reason why the cutter wasn't dropping cleanly.

I must have been off and on that tractor and up the front of that baler a hundred times or more for about 80 bales. . . . . . :mad: :???: But at least I finished the field.
 
On the nh balers, the knife will bounce when it hits the net- there will be a wad of dirt & junk under the knife and between the fingers the grab the net to make it cut--- take the knives out a 7/16 wrench and just hit them a bit with a file, get the dirt from under the knife clean, put it back together and should wor the dirt keeps the knife from falling far enough
 
Thank you cowman, I will check that out. We had the knives out last year and sharpened them up but it might have built up with junk while baling green stuff last fall. I looked at the knife on Saturday and thought that there wasn't much of the sharp edge showing between the little net grabbing fingers. But I don't think there is any adjustment on them to show more cutting edge to the net??
 
There is not any adjustment on the knives but down here the dirt especially if you had to run in the damp to finish, will ball up and the fingers that grab the net can't grab.
If I can help let me know- I was the JD/ Nh baler tech for too many years
Lonnie

If you have EVER stopped the baler up the duck bill that holds the knife may have got sprung just enough to prevent cutting- Cure a bead welded down the backside & it will draw to about what you need-- Last resort
 
Well it's hard to say what all I have done to this poor machine since I'm not the sharpest knife in the drawer when it comes to running machinery!! When my sons are home doing the baling, things seem to run a lot better :oops: :oops:
How visible is it if the knife is sprung? I will take a look as soon as the weather dries up enough to get things dug back out of the shed. Stuff is jammed in there pretty tight since it is to rain all week.

Thank you for your offer. Our local dealership's service man rode that thing for an hour one day and could not spot what was causing the slight binding as the knife dropped. And he's no rookie.

The strange part of it is that when I manually lift the catch and drop the knife head, it drops without any hesitation.

I also found out that I bloody well better get my finger out of the catch before the knife drops very far!!!! :shock: :shock: :mad:
 
If the duckbill is hesitating when the trip turns it loose, check the bushings at the pivot points, they wear out fast, on the rt side of the baler the mechanism that lets the bill fall & also resets it when you eject the bale has a lot of places to bind- bushings ,pins, triggers The bushing that is in the slot that measures the diameter is the main one- if wore it slows things down
The bill should turn slightly toward the hitch of the baler when it is released and down, the fingers on it may be worn to the point they will not grab -- a touch with the grinder will dig them a little deeper --does not take much
 
We got the bushings changed, put a new actuator arm on it and cleaned everything up nice and free and it worked like a charm when we tried it out today. The old arm had a bit of a twist to it so it may have been binding just a bit.

Thank you cowman52.
 

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