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Case Tractors Discussion Forum
Show Parts for Model:

case 1740 uniloader gearbox came apart

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jb660r

03-27-2013 14:31:16
74.47.115.153



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Would everything still work if you just mounted the pump directly to the motor, and removed the belt and drive sheave? A friend of mine had his gearbox break, and I thought about making a bracket to hold the pump and having the pump directly driven from the engine. We"re just not sure if it would still move if the variator wasnt being driven.




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oldtanker

04-08-2013 16:45:44
66.228.255.239



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 Re: case 1740 uniloader gearbox came apart in reply to jb660r, 03-27-2013 14:31:16  
Location? And how much would you want for it as is?

Rick



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Yuri Lockburner

04-11-2013 15:36:16
74.212.3.155



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 Re: case 1740 uniloader gearbox came apart in reply to oldtanker, 04-08-2013 16:45:44  
Whole machine 2 grand... 188d engine 1500. Has low hrs snice rebuild. Only thing valuable about the machine is the engine. Located in northeast pa



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Yuri Lockburner

04-08-2013 09:47:47
74.212.3.155



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 Re: case 1740 uniloader gearbox came apart in reply to jb660r, 03-27-2013 14:31:16  
Hi guys im the actual owner of the case 1740. No luck in finding a decent priced gearbox. I decided to part the machine out untill it's bare and scrap the rest. Someone wants to buy the steering clutches. Whats a fair offer to take on them? I don't wanna be greedy but not get ripped off. I already lost alot of money on this machine.



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caseskid

03-27-2013 18:08:42
70.194.136.180



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 Re: case 1740 uniloader gearbox came apart in reply to jb660r, 03-27-2013 14:31:16  
We have some gearboxes if you need one thanks. Jim



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Yuri Lockburner

03-28-2013 16:31:58
74.47.95.72



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 Re: case 1740 uniloader gearbox came apart in reply to caseskid, 03-27-2013 18:08:42  
Hi Jim im the actually owner of the case 1740. How much for a gear box? We are going to try and repair it but if a used one at a decent price would just be simpler. Give me a call if you like 570-240-1790.



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Adirondack case guy

03-27-2013 16:43:55
74.69.160.79



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 Re: case 1740 uniloader gearbox came apart in reply to jb660r, 03-27-2013 14:31:16  
You better find a mechanic to fix your machine and then have him show you how to use it.
Loren



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jb660r

03-28-2013 18:23:50
173.86.92.203



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 Re: case 1740 uniloader gearbox came apart in reply to Adirondack case guy, 03-27-2013 16:43:55  
Loren, that makes no sense at all. If you intended that the way I think you did, that is the type of thing that keeps people from posting on forums. Secondly, many " mechanics " aren't that at all, they are part changers. I simply asked a question and I got an answer. If you need special training on a machine to keep a gearbox from blowing apart, then I would say it is a poor design, which it is.

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mEl

03-28-2013 18:46:23
71.241.102.77



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 Re: case 1740 uniloader gearbox came apart in reply to jb660r, 03-28-2013 18:23:50  
Quoting Removed, click Modern View to see

When that drive was used by Case and many others it was state of the art. Naturally as time and technology progressed Hydrostatic drives were introduced and were a vast improvement. The gearboxes were not a weak point, in fact the variable hydraulic sheaves gave much more problems than did the gearboxes. I was there when they came out new and have done every conceivable repair on them. I do not view them as a poor design, and if checking the oil level is special training as you describe it then you should hire a mechanic!...
I sat in amazement as I read your comments about hooking the pump direct to the engine and even thinking it would function as the gearbox and sheaves are the traction drive. I understand completely where Loren is coming from as it was obvious that you had no concept of how the drive operated. Loren has many years in the sales and service business with Case as I do and our reactions were pretty well the same.

Please do not be hard on us as your original post showed you complete lack of understanding of the mechanical operation of the skidsteer.

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jb660r

03-28-2013 22:27:41
173.86.92.203



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 Re: case 1740 uniloader gearbox came apart in reply to mEl, 03-28-2013 18:46:23  
Which is why is was a question. As for checking the oil, the machine had been off the trailer less than an hour when the failure occurred. Being purchased earlier that day. Also just because it was high tech in its day does not mean it isn't flawed. The entire point I am trying to make is that the original post was a simple question, the only other time I had seen this type of setup is on John Deere garden tractors, and other skid steers I have worked on were a lot different.

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mEl

03-29-2013 04:08:57
71.241.102.77



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 Re: case 1740 uniloader gearbox came apart in reply to jb660r, 03-28-2013 22:27:41  
Quoting Removed, click Modern View to see

JB,
I feel your only option would be to get a good used gearbox, reseal it and put it in the machine.
I truly feel sorry for your friend as there is a good probability that the gearbox had issues and could have been the reason it was for sale. If it is as I expect you have run into an unscrupulous person, I could not live with myself if I knew it unless it was understood at the time of sale.

If in good condition the gearboxes are really not that much of a problem, as previously stated we sold them new. I have replaced and repaired way more of the variable sheaves on the box than the box itself.

The hydrostats that followed were entirely different and I would guess most of your experience prior was with those.

BTW, they are not without their faults either, they will tolerate no dirt in the pump and motor and the repair parts are exorbitant in cost. A poor job of changing drive hoses can cost literally thousands in parts and labor.

Let us know as you progress with the repair how it is going.

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Case Nutty 1660

03-29-2013 05:34:34
75.127.24.27



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 Re: case 1740 uniloader gearbox came apart in reply to mEl, 03-29-2013 04:08:57  
mEl, I found some years ago that running amsoil ( or any good grade of full synthetic oli) in them makes them last much longer just wondering if you have ever tried that approach, I agree with you on all points to that series uni-loader, we too sold them since they came out and sold lots of 1740's to me they were (if maintained and operated correctly) were as good if not better than the current hydro even if the drive clutches were a bit of a pain to adjust, and JB as to it blowing just after you unloaded/purchased it that machine was not new nor did you know how it was taken care of the last 40 years, would you really expect a 40 year old car to run and give trouble free service? I am not putting you down or be rude just trying to make a point, as the guys pointed out the drive sheave system does require service, I found people would not pull the seat every 10 hrs or so and give them a few shots of grease, the gear box was treated the same many never checked the oil until it failed, another big one they failed to do was return the variable to low before shut down hope these small pointers help you with your new unit good luck and please do post here how you get along with repairs cnt

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jb660r

03-29-2013 06:58:02
70.215.70.219



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 Re: case 1740 uniloader gearbox came apart in reply to Case Nutty 1660, 03-29-2013 05:34:34  
Thanks for the input guys. I do want to say the machine would have been completely checked out but of course you wanna mess around with it a little first. There is no doubt in my mind that it had been cobbled enough to sell it. I had no idea it used a sheave for the speed adjustment because I had never had experience with a machine like that. I was born the last year they made this model. Prices so far on a used gearbox have been $2500 firm and $1500 firm. I'll keep you posted on where it stands.

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mEl

03-29-2013 17:56:10
71.241.102.77



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 Re: case 1740 uniloader gearbox came apart in reply to jb660r, 03-29-2013 06:58:02  
Quoting Removed, click Modern View to see

JB,
Tear the box down and see if the gearset and shafts are badly damaged, bearings, races and seals will be fairly easy to find and reasonable. Be careful when pulling the VS pulley off the shaft so you don't break it. There are people here who will help you through this and maybe some used parts will surface. Thanks for keeping us up to speed on it. BTW, most skids steers of that vintage used a similar drive.

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Case Nutty 1660

03-27-2013 14:51:34
75.127.24.27



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 Re: case 1740 uniloader gearbox came apart in reply to jb660r, 03-27-2013 14:31:16  
the belt is what drives the machine, the hyd pump is for loader lift/bucket operation



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