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Implement Alley Discussion Forum

nh 268 baler question

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steveinmaine2

06-21-2006 16:51:12




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We have a 268 baler and the top forward most plunger bearing(laying horizontal) has gone bad,We have the old pieces of the bearing off and the hex head pipe plug. We suspect we may have to disconnect the plunger assembly to slide the assembly far enough forward to enable us to slide the bearing onto the top of the post that the bearing sits on.As we are not familiar with plunger removal or disconnecting,wondering if someone that is familiar,could list the steps necessary to replace this bearing.Have to bale tomorrow or friday,so any help appreciated.Thanks,steve.

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MidMiGene

06-21-2006 17:44:10




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 Re: nh 268 baler question in reply to steveinmaine2, 06-21-2006 16:51:12  
I have a 273 and a 268. Not positive, but I think you have to take the two bolts out of the plunger arm at the front gearbox arm, next to the bearing. Then slide the entire plunger out the rear of the baler, just like a bale of hay. At least thats how my 273 works. Hope this helps. Gene



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steveinmaine2

06-21-2006 18:14:52




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 Re: nh 268 baler question in reply to MidMiGene, 06-21-2006 17:44:10  
Thanks Gene, we have a parts book for the 268, also we have an operator manual for a 276..looking at the 2 ,they look different at the front of the plunger...on the 268, it looks like you take one bolt out of the gearbox arm(not 2 like your 273 or the 276),then disconnect the finger feeder arm...then we thought maybe we could slide the plunger assy far enough forward to slide the front bearing on the top stud of the plunger...there is about 6 inches or so at the front of the baler, where the bearing will slide out of the guide that it rolls in, and looks like it would drop down after passing this guide, enough to slide the bearing on.But any other suggestions, or corrections, if we are looking at this incorrectly, welcomed.Also we would mark everything, so as to put it back in the same location, but not sure if we run the risk of putting something out of time..thanks,steve.

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steveinmaine2

06-22-2006 08:29:02




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 Re: nh 268 baler question in reply to steveinmaine2, 06-21-2006 18:14:52  
Well,it turns out there were 2 bolts on the 268 to disconnect the crank arm..also we disconnected the finger feed arm, thinking we could slide the plunger ahead far enough to get the front top plunger roller bearing on.Wrong answer! a rear side bearing roller prohibits the plunger from going further forward, even with the above disconnected.So in a bind,with hay laid down and rain approaching, we took a grinder and rounded out the top slide area above the bearing, just enough to wiggle the bearing down onto the post.Not textbook, but functional, and saved valuable time.Ok, so we cheated, but not too worried about it..gotta go bale..thanks,steve.

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Rexalot

06-22-2006 08:28:03




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 Re: nh 268 baler question in reply to steveinmaine2, 06-21-2006 18:14:52  
Plunger comes out the back through the bale chamber. It should pass over the haydogs. These would need retracted to push it back in. Once the plunger is unbolted I think it would be easier to do the maintenance removed. You could also check everything else out and sharpen the knife without having to take it off.

or, you might get lucky enough to pull it fwd to do the job and save some work.



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steveinmaine2

06-22-2006 18:15:16




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 Re: nh 268 baler question in reply to Rexalot, 06-22-2006 08:28:03  
Thanks for the additional info regarding removing plunger from the rear.As mentioned above disconnecting the plunger still does not let it come far enough forward to replace the top bearing,hence our alternative fix mentioned.All other bearings, however,it looks like the plunger will have to be removed from the rear, if they go bad. Thanks about hay dog info on the re-installation of plunger.Got the hay baled(few sprinkles of rain just when finishing,then of course the sun came out!) At any rate 200 more bales got put in the barn...more rain forecasted thru the middle of next week..don't know when we will finish haying,at this rate... Thanks,steve.

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