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Implement Alley Discussion Forum

new holland hay cutter

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alabamahay

08-31-2006 02:49:03




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yes i have a new holland 462 hay cutter and the inside bearings have gone out in it.i have already took off all the disk and only like 2 bolts being able to drop the bar off the mower i am hopeing someone can give me some advise on what cause the cutter to get out of time during rebuilding.




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alabamahay

08-31-2006 17:58:19




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 Re: new holland hay cutter in reply to alabamahay, 08-31-2006 02:49:03  
i want to thank you guys for the advise. i didn't know what i was getting into when i started this. i went to the local tractor shop and they told me it would coast $2,300.00 to rebuild the cutter. so after haveing to buy a new baler this year i knew i had to rebuild the cutter myself.i got one more question bh you said in your reply that the manual came in handy when you rebuilt the cutter bar gearbox what is there to rebuiding that,

thank you all very much, larry

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bh

09-01-2006 04:51:14




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 Re: new holland hay cutter in reply to alabamahay, 08-31-2006 17:58:19  
Larry,

I guess I just meant that it helped to know what order to keep things in. It also tells you that you have to replace some plastic bushings under the gears every time you open the cutterbar (gearbox). I think someone else might have been right that the indexing of the gears probably isn't that important since you can just turn the discs some on the shaft when you put them back on. We put ours back like they were anyway. Ours has worked great since we repaired it. The repair was not nearly as tough as I thought it would be. I did fell better having the service manual to guide us. You may be just as comfortable without it. We only paid about $2600 for our mower so I can understand you wouldn't want to spend $2,300 to repair it. Billy

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RodInNS

08-31-2006 09:33:11




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 Re: new holland hay cutter in reply to alabamahay, 08-31-2006 02:49:03  
I've got a 465 which is just a bit larger that yours. I've never had the bar apart, but know a guy that has. Dunno about the timing. I think there is probably enough room for those discs that you can just start with the first disc, and then alternate (rotate) each one after by 90 degrees. There's no master spline that I recall. Even if this leaves them a bit out, I think they've still got clearance enough to get around without hitting each other. Again, I don't know if there is an internal timing sequence. But if I had it back together, and it wasn't right, I'd try moving the discs around first before I took it all apart again.

I do know that that bar is a bugger to get apart. All those big allen head cap screws on the bottom have to be turned out, which is not fun. My buddy made up a tool for that, and it required several feet of pipe on that to break them loose... and he's no midget.
Also, the suggestion to get a manual is a good one. HTH.

Rod

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BigMarv1085

08-31-2006 04:53:35




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 Re: new holland hay cutter in reply to alabamahay, 08-31-2006 02:49:03  
I have one that I bought brand new. Leaking oil from under one of the disc and there seems to be some side to side movement. Do you remember how much the bearings and seals are?



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bh

08-31-2006 06:24:40




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 You didn't ask me, but in reply to BigMarv1085, 08-31-2006 04:53:35  
I can look that invoice up if you'd like. I'd guess that you've got a bearing and seal out. On ours someone had just replaced the bearing and left me with a wallowed out housing to replace. Bad thing is I don't think there's a way to just work on the one disc that's bad. I'm almost positive you have to open the whole cutter bar up. You'll want to check all the bearings seals etc. when you do that.

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bh

08-31-2006 04:47:23




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 Re: new holland hay cutter in reply to alabamahay, 08-31-2006 02:49:03  
I'd strongly recommend you get a service manual. They're about 20 bucks and a HUGE help. We rebuilt ours this spring. If you wish I'll be glad to lookup something for you in the manual. On the timing, if I remember correctly the gears have marks on them and you alternate the marks. Note how they are oriented before you move the gears.



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BobMo

08-31-2006 05:54:32




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 Re: new holland hay cutter in reply to bh, 08-31-2006 04:47:23  
bh, of course your right but, I reckon it's to late for that now..... .....



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bh

08-31-2006 06:26:07




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 Sorry, I was assuming in reply to BobMo, 08-31-2006 05:54:32  
he didn't have the cutterbar apart yet. Working on the cutterbar gearbox was where the manual was invaluable to us. BH



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