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rieg 
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 Topic: 175 transmission help please!
Posted: 20 Dec 2017 at 8:50pm |
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I bought a 175 that was advertised as having had first and second gear replaced because of slipping out of those gears. I didn't test it but should have! Yes it comes out of second. Is there anyway of shaping up those rounded off cogs, like with with a carbide dremel to square off the cogs??? Any thoughts? I really don't want to gut the rear end pull everything out. Come on guys throw me a bone here or a miracle cure.
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rieg
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DSeries4
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Location: Ontario, Canada
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Posted: 20 Dec 2017 at 8:55pm |
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Sorry, there is none. The cogs are WORN, there is nothing to square off.
I would call the guy who sold you that tractor and ask for reparations.
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'49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '63 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080
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rieg
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Posted: 21 Dec 2017 at 12:11pm |
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Thanks, I figured that but I did read a post where someone tried that or something like that and it helped. Sounds like a winter project of which I already have to many.
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rieg
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DrAllis
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Posted: 21 Dec 2017 at 12:27pm |
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You can only see 50% of the damage !! The coupling that slides over the dog teeth is chewed up too !!!!
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rieg
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Posted: 21 Dec 2017 at 6:24pm |
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Got it, I guess I hadn't really thought about that! Thanks. I bought it for my son-in-law to use for making hay should still be ok for that if I don't get around to fixing it this winter.
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rieg
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SteveM C/IL
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Posted: 21 Dec 2017 at 10:26pm |
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It would still be worth investigating whether or not it shifts into full engagement at the fork. See if you can shove it deeper in gear from the detent.If so, I'd be moving the detent slot(grind/weld). May not work but it could.
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B26240
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Posted: 22 Dec 2017 at 6:18am |
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What Steve said may work for a while. As a rule of thumb I figure $1000 per gear that they jump out of to fix right.
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DrAllis
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Posted: 22 Dec 2017 at 8:57am |
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Good luck finding second gear on the top shaft . I don't know if AGCO has any and they are a different gear ratio than a D1-7 or One-Seventy.
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Kevin in WA
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Posted: 22 Dec 2017 at 10:06am |
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A&I products has 2nd mainshaft gear for 175
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DrAllis
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Posted: 22 Dec 2017 at 11:39am |
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That's great if they do, but it better not be listed as the same part for a D-17. Oftentimes after-market parts are listed incorrectly as to what they fit.
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DrAllis
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Posted: 22 Dec 2017 at 3:48pm |
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Well, what do you know !! A & I Products really does have a second gear for the top shaft p/n 70255333 and the shift coupling 70232532. Now, if they just had the 70247726 gear to match the bottom shaft, you could have a 10% faster second gear in a D-17 or 170.
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Kevin in WA
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Posted: 22 Dec 2017 at 8:16pm |
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Yep, I have been keeping my eyes out for a good used countershaft gear from a 175 so I can put a the faster 2nd gear in a D17. Its beyond me why it took AC about 13 years of building D17s and 170s to figure out there is 2 wasted speeds, 1st high is the same as 2nd low and 2nd high is the same as 3rd low!!!
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DrAllis
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Posted: 23 Dec 2017 at 8:56am |
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I concur with that. The 175 transmission gear speed spacing was really great other than with the slower ratio final drives, it made a gasser pretty slow unless you wound the engine up to 2200 RPM or more.
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DrAllis
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Posted: 23 Dec 2017 at 9:04am |
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I've just now e-mailed A & I to see if they can't be convinced to start producing the 70247726 countershaft gear. Fingers are crossed.
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Kevin in WA
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Posted: 23 Dec 2017 at 10:50am |
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Thank You!
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rieg
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Posted: 24 Dec 2017 at 10:21am |
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Ok guys just so I get this right I need part no. 7025533 for my second gear and 70247726 for the coupling to fix my 175 from kicking out of gear while going down hill. Our AGCO dealer head mechanic did suggest that if I had extra travel in the second gear shift past the present detent that moving the detent might help. Do you guys have contact info for A@I. thanks again for the help. and Merry Christmas
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rieg
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DrAllis
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Posted: 24 Dec 2017 at 10:38am |
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You'll need one of 70255333 (2nd gear top) and 70232532 (sliding coupler/rev gear top) to repair jump out problem. 70247726 is the lower gear which you shouldn't need and they do not have anyway.
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JimIA
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Posted: 24 Dec 2017 at 12:32pm |
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Id be cautious using A&I gears on an active tractor. They are not as hard as oem gears and wear faster. Their endplates for the power directors are crap. Would it be possible to get them hardened elsewhere? I have heard of people having luck on getting gears rewelded but have never had it done myself. Whats your opinion on rewelding gears Dr?
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An open eye is much more observant than an open mouth
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DrAllis
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Posted: 24 Dec 2017 at 1:20pm |
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Maybe on a CA/D14-15 but when you get into a 180 or bigger, I think those gears are very HARD and don't know how anyone could weld the shift dogs back up to spec and have the material be the same quality afterwards. I doubt any 175's work hard enough pulling a plow or a disc to ever wear out A & I gears and remember the tractor already has "X" amount of hrs on it already.
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JimIA
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Posted: 26 Dec 2017 at 10:26am |
I guess I was worried about the shift dogs not holding up on the A&I gears more than anything. Like I said the A&I PD endplates are so soft that the area where the rollers run wear out very fast. Funny thing is I called A&I and asked if the plates were heat treated. They guaranteed to me that they were harder than the AGCO ones. Worst thing is I believed them........
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An open eye is much more observant than an open mouth
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Lester
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Posted: 26 Dec 2017 at 11:59am |
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Second gear is also wider than D-17 and 170s second gear. Stronger too !
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Jack(Ky)
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Posted: 30 Dec 2017 at 8:22pm |
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Before I did all this gear replacing I would modify the detent shaft and let it gear in deeper. Someone on another site said that Agco has the replacement shaft now to make it go in deeper like AC used to offer. Even if I did replace those gears I would modify the shaft anyway like AC should have when they built them. I have fixed several this way.JP
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'59 D14 '68 170 Diesel '81 7020 40 All Crop
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DrAllis
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Posted: 30 Dec 2017 at 9:08pm |
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The shift "rail" from AGCO shifts 4th gear in deeper on models 180-185-190-200. There is no such part available for a 170-175 transmission.
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Clay
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Posted: 30 Dec 2017 at 10:06pm |
Dr. Allis, what is the part number for the AGCO shift rail for the 180?
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DrAllis
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Posted: 30 Dec 2017 at 10:16pm |
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70261443 for the deep shift rail and 70261385 for a new fork if needed.
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AC7060IL
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Posted: 31 Dec 2017 at 8:45am |
 DrAllis wrote:
70261443 for the deep shift rail and 70261385 for a new fork if needed. |
Thanks DrAllis. Is there a different deep shift rail & new fork AGCO number for a 190xt? I'll be reworking a series II's Trans in near future.
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SteveM C/IL
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Posted: 31 Dec 2017 at 8:47am |
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re-read a couple post up
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jeickman01
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Posted: 31 Dec 2017 at 9:42am |
My D17 III jumps out of 2nd gear. If 1st high is same as 2nd low and 3rd low is same as 2nd high, and since this is my retirement putt-around tractor I think I'll leave it alone.
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AC7060IL
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Posted: 31 Dec 2017 at 12:51pm |
SteveM C/IL wrote:
re-read a couple post up |
Thanks. I re-read DrAllis 180,185,190,200 post & yes, now I follow or understand that all 4 of them uses the same rail.
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ksbowman
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Posted: 31 Dec 2017 at 5:18pm |
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Can the rail and fork be replaced from the top without removing the transmission. Common sense tells me yes, but sometime that gets me in trouble. My 190 jumps out of 4th and 6th and this would be an easy fix if I can pull off the top cover and do it.
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