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Implement Alley Discussion Forum

#55 Rake

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Tom 8N396936

05-16-2007 04:50:47




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Guys, I hope someone can offer some insight. I have a NH55 rake I have been fighting with. The problem is she seems to just stop turning for no reason. I have checked and the driveline and from the wheel to the gear box it stops turning when this happens so this indicates to me the problem is in the drive at the wheels. I have gone in and changed the "dogs" and springs on both sides and replaced the sleeve on the axle. I am about at wits end with this rake - so if anyone can point me in a direction I would be very thankful. I have to do something pretty quick - hay is coming!
thanks in advance
tom

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Tom 8N396936

05-23-2007 04:52:38




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 #55 Rake UPDATE in reply to Tom 8N396936, 05-16-2007 04:50:47  
Here is an update on what I have found. I have been replacing anything I thought was bad. The hubs still look OK to me so they stay. Yesterday I tied the basket to the frame and engaged and started driving- both wheel dragged with no turning? this may or may not prove anything since when I run the rake it speeds up and slows down almost like it is disengaging then catching again.
If anyone has anything else let me know thanks for all the great suggestions so far!
tom

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KEH

05-16-2007 17:56:37




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 Re: #55 Rake in reply to Tom 8N396936, 05-16-2007 04:50:47  

Are the teeth in the hubs worn out ?

KEH



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johns48jdb

05-16-2007 15:59:09




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 Re: #55 Rake in reply to Tom 8N396936, 05-16-2007 04:50:47  
gosh, i'm trying to remember on an ih 35 i had a similar problem but i can't remember what happened. it does seem like to me that it was a problem with the other drive wheel shearing the keys when i turned and it was suppose to free wheel and wasn't. forgive me for growing old. its just so much fun! seems like now that somebody had the wheel run off with them and when it was put back on the dog was turned around backwards maybe. its ok just go ahead and shoot me and put me out of my misery.

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backwoodsfarm

05-16-2007 09:37:23




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 Re: #55 Rake in reply to Tom 8N396936, 05-16-2007 04:50:47  
I agree with onefarmer, sounds like the keys. It"s definately something at the wheel.



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backwoodsfarm

05-16-2007 06:00:34




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 Re: #55 Rake in reply to Tom 8N396936, 05-16-2007 04:50:47  
Ok, need more clarity. When the basket stops, does the gearbox driveshaft stop, or does it keep spinning?



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Tom 8N396936

05-16-2007 06:15:00




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 Re: #55 Rake in reply to backwoodsfarm, 05-16-2007 06:00:34  
yes- the driveshaft stops when the basket stops.
tom



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onefarmer

05-16-2007 08:10:01




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 Re: #55 Rake in reply to Tom 8N396936, 05-16-2007 06:15:00  
ok so if the driveshaft stops, does the axleshaft? Does the driven hub the dog levers are attached to stop? Maybe the axle keys are sheared. If the wheels are still turning the drive hub would still turn. If the driven hub turns but not the shaft I'd look at the keys



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Tom 8N396936

05-16-2007 10:06:31




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 Re: #55 Rake in reply to onefarmer, 05-16-2007 08:10:01  
I did take a look at the keys as a matter of fact I had a heck of a time finding two that big .25 X 1.5 inches but when I did I replaced them.
tom



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onefarmer

05-16-2007 12:03:51




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 Re: #55 Rake in reply to Tom 8N396936, 05-16-2007 10:06:31  
Was that the problem or are you still hunting?



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Tom 8N396936

05-16-2007 12:42:41




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 Re: #55 Rake in reply to onefarmer, 05-16-2007 12:03:51  
Still hunting! Any suggestions welcome.
tom



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onefarmer

05-17-2007 07:14:54




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 Re: #55 Rake in reply to Tom 8N396936, 05-16-2007 12:42:41  
Ok. Go back to the parts view on my earlier post. Hub(9) is what the wheel attaches to and hub(14) is driven by it. Hub(14) attaches to the axle shaft(19) by those keys(15).

Since hub(9) is driven by the wheel it must turn unless the wheel slips. Does the driven hub(14) turn or does it stop? If it stops the dogs(11) or the teeth they engage are suspect. Or the springs(10) are missing or too weak to make the dogs engage the hub(9). If the hub(9) doesn't stop, does the axle shaft(19) stop? If it does the keys(15) are suspect. If the axle(19) still turns deoes the driveshaft that attaches via yoke(4) turn.
Basicly follow from the wheels up to where the motion stops and report back where this is.

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Tom 8N396936

05-18-2007 04:24:15




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 Re: #55 Rake in reply to onefarmer, 05-17-2007 07:14:54  
Ok took a quick look at it after work last night. It appears to me as though the axle continues to turn the drive shaft to the gearbox stop or slows as the bars stop or slow.
I am not sure if the hubs are worn as I have no reference point but with simple observation I would say no , not worn beyond use. Pulled both sides and keys are in place.
I know I am going to find something fairly obvious and then smak myself on the forehead but in the mean time I am still open to any and all ideas.
tom

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onefarmer

05-18-2007 06:17:55




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 Re: #55 Rake in reply to Tom 8N396936, 05-18-2007 04:24:15  
If the axleshaft(19) still turns but the driveshaft stops it can only be the pin(5) that attaches the U-joint yoke(4) to the axle(19).

Maybe the yoke is on the axle tight enough to turn the basket until a load is put on it?

Maybe you could take a pipe wrench and turn the driveshaft backwards to see where the break is.

This would simulate putting a load on the basket.



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onefarmer

05-18-2007 06:26:42




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 Re: #55 Rake in reply to onefarmer, 05-18-2007 06:17:55  
Oh, You could also turn the basket backwards. this would load the gearbox, driveshaft, and the hubs.



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Jossette

05-16-2007 19:44:25




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 Re: #55 Rake in reply to Tom 8N396936, 05-16-2007 12:42:41  
You may have to open the gearbox and see if the drive gear is worn. Or the dogleg in the box may have broken( The piece that or lever that puts it in gear)



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