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J.R. Stewart

02-15-2007 08:19:36

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5th gear keeps popping out as I go down the road. I have pulled the top off my tranny and discovered that the top 5th gear is chewed up. Could someone give me some advise on how to get this gear off? It would also be nice if someone could email me some diagrahams of the tranny. Please help me.
Sincerely
J.R. Stewart FT. Scott, KS

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LenRahilly

02-21-2007 14:30:18

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Re: mfarmall in reply to J.R. Stewart, 02-15-2007 08:19:36

I have an I&T manual which has a diagram of the transmission AND gives instructions for dismantling. Not clear to me if you can remove the gear you've got trouble with. Spent lots of time up top, but never been inside one of these.
E-mail me and I'll be glad to send you a photocopy of what I've got.

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John M

02-15-2007 14:32:11

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Re: mfarmall in reply to J.R. Stewart, 02-15-2007 08:19:36

Which part is chewed up, the slider, or the mating gear, thats the constant mesh gear. It looks like the gears have been chewed uo but its cut that way so the 4/5 slider can slide up on to the contant mesh gear. I kinda have to go along with Owen and Allen, sounds more like the bearing or the shift rails. I would tend to think that the way 5th is made, it would grind or something.

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J.R. Stewart

02-15-2007 18:05:50

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Re: mfarmall in reply to John M, 02-15-2007 14:32:11

JohnM,
I have just located an H that a guy in my town will sell me for junk price. Will the gears that I need work in the M?

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John M

02-15-2007 18:48:13

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Re: mfarmall in reply to J.R. Stewart, 02-15-2007 18:05:50

Nope. IF they would I could sell you a set.I have a set I took out of a H that I just never got around to putting on ebay.I forgot to tell you the gear on the bottom shaft will have to be pressed off.

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J.R. Stewart

02-15-2007 17:07:13

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Re: mfarmall in reply to John M, 02-15-2007 14:32:11

JohnM,
I just viewed my tranny again and noticed that your pictured gear where the flat spots are on the teeth. my flat spots are smaller, so i gues my gear is not as good. I also noticed that the gear below the 4/5 slider gear is rounded off pretty good. Do you no the name of that gear below the 4/5 slider and what is the exact name of the pictured gear you sent. I suppose I need to purchase all three gears and the bearings?
J.R.

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John M

02-15-2007 17:12:54

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Re: mfarmall in reply to J.R. Stewart, 02-15-2007 17:07:13

The constant mesh gear is the one pictured. The gear on the lower shaft, Im not sure of the technical name of by I call it the drive gear, the upper is the sliding, or slider, gear. Wengers had those in stock for an H, so the ymay them for an M.

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jrstewart

02-15-2007 16:41:00

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Re: mfarmall in reply to John M, 02-15-2007 14:32:11

JohnM
Thanks for the pick.
My gear that is chewed up is the outside of the gear that slided ove the smaller attached gear in the pic you sent. I also just tried to slide this gear over the pictured gear and it did not want to slide onto the other gear.
What do you think?J.R.

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John M

02-15-2007 16:47:16

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Re: mfarmall in reply to jrstewart, 02-15-2007 16:41:00

Well, I guess you do need the 4/5 slider, If the teeth on the constant meash gear, pictured, are ok then you may be ok on that one, but at the very least I would change those bearings in that assembly since youre going to have to pull it anyways.

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Owen Aaland

02-15-2007 12:42:56

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Re: mfarmall in reply to J.R. Stewart, 02-15-2007 08:19:36

The main cause for coming out of fith gear is loose bearings, usually the front main shaft bearing is shot. Fortunately the M has a caged bearing and race instead of the loose rollers like an H. Because of that usually all that is needed is to replace the bearing. On an H the shafts are usually damaged when the bearing fails.

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Janicholson

02-15-2007 11:06:49

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Re: mfarmall in reply to J.R. Stewart, 02-15-2007 08:19:36

The gear with teeth you are looking at is fourth gear (I am Positive). The fifth gear is a set of splines (male and female) that are in the middle of the that 4th gear. The round edges on 4th won't hurt it ans are not the problem. Fifth is a direct connection using no "gears" at all. The splines couple the input shaft to the ooutput shaft resulting in the road gear. There needs to be replacement of both pieces. It can be done without splitting the tractor. The belly pump (lift all) needs to come out the bottom, and the clutch coupling and clutch shaft removed. Then the front main bearing carrier and constant mesh gear. Catch the rollers with a cloth draped under the shaft. The 4th 5th sliding gear will then come off the shaft. Good used from salvage may be the only option. Extreme effort could be made to rebuild and temper the splines on both pieces, but that is extreme. I hope this helps, there are pictures in the serach for area above of 4th 5th slider. Ms and Hs look the same, they are different in size. Info/pics for Hs will be good as they are that similar. JimN

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J.R. Stewart

02-15-2007 18:42:21

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Re: mfarmall in reply to Janicholson, 02-15-2007 11:06:49

Jim,
Do you know if the gears in an H will fit in my M.?
J.R.

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J.R. Stewart

02-15-2007 11:37:29

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Re: mfarmall in reply to Janicholson, 02-15-2007 11:06:49

Thank you Janicholson,
I understand I need a 4th and 5th sliding gear. Do I also need the input and output shaft and do they have a more exact name?
Sincerely
J.R. Stewart FT. Scott KS

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Janicholson

02-15-2007 13:38:04

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Re: mfarmall in reply to J.R. Stewart, 02-15-2007 11:37:29

The gear is splined to the output shaft allowing 4th to power through the "lay"shaft (lower countershaft in the trans) to the output shaft. The splines that are worn couple with the input shaft. Both the input shaft, and splines on the gear are about the same hardness, and both wear out. Shifting is necessary between 4th and 5th when using road gear. If it is just raked in without concern, they last about 40 years, if time and modreration (and double clutching when level or down hill) they last a life time. JimN

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Allan In NE

02-15-2007 09:06:02

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Re: mfarmall in reply to J.R. Stewart, 02-15-2007 08:19:36

Scott,

Look at that shift rail. Is it bent?

Allan

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J.R. Stewart

02-15-2007 09:20:50

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Re: mfarmall in reply to Allan In NE, 02-15-2007 09:06:02

THe shiftrail seams to be in good condition. The second gear from the front wich I have been told that is the 5th gear. The back side of that gear is all rounded off. Do I have to drop the Hydrolic pump and get to it from there? Will I also need to split the tractor? Or should I get to it from the bull gears? Another man gave me website to go to for a diagrahm but I'm having trouble finding it in that web site.
Please help. Sincerely J.R. Stewart

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Dave from Texas

02-15-2007 08:29:34

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Re: mfarmall in reply to J.R. Stewart, 02-15-2007 08:19:36

Link

This is a online parts manual for the H. The M will be about the same.

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