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case 1740 uniloader gearbox came apart


 
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jb660r
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PostPosted: Wed Mar 27, 2013 1:31 pm    Post subject: case 1740 uniloader gearbox came apart Reply to specific post Reply with quote

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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Case Nutty 1660
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PostPosted: Wed Mar 27, 2013 1:51 pm    Post subject: Re: case 1740 uniloader gearbox came apart Reply to specific post Reply with quote

the belt is what drives the machine, the hyd pump is for loader lift/bucket operation
 
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Adirondack case guy
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PostPosted: Wed Mar 27, 2013 3:43 pm    Post subject: Re: case 1740 uniloader gearbox came apart Reply to specific post Reply with quote

You better find a mechanic to fix your machine and then have him show you how to use it.
Loren
 
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caseskid
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PostPosted: Wed Mar 27, 2013 5:08 pm    Post subject: Re: case 1740 uniloader gearbox came apart Reply to specific post Reply with quote

We have some gearboxes if you need one thanks. Jim
 
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Yuri Lockburner
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PostPosted: Thu Mar 28, 2013 3:31 pm    Post subject: Re: case 1740 uniloader gearbox came apart Reply to specific post Reply with quote

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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jb660r
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PostPosted: Thu Mar 28, 2013 5:23 pm    Post subject: Re: case 1740 uniloader gearbox came apart Reply to specific post Reply with quote

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
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PostPosted: Thu Mar 28, 2013 5:46 pm    Post subject: Re: case 1740 uniloader gearbox came apart Reply to specific post Reply with quote

jb660r wrote:
(quoted from post at 18:23:50 03/28/13) 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.


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
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PostPosted: Thu Mar 28, 2013 9:27 pm    Post subject: Re: case 1740 uniloader gearbox came apart Reply to specific post Reply with quote

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
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PostPosted: Fri Mar 29, 2013 3:08 am    Post subject: Re: case 1740 uniloader gearbox came apart Reply to specific post Reply with quote

jb660r wrote:
(quoted from post at 22:27:41 03/28/13) 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.


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
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PostPosted: Fri Mar 29, 2013 4:34 am    Post subject: Re: case 1740 uniloader gearbox came apart Reply to specific post Reply with quote

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
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PostPosted: Fri Mar 29, 2013 5:58 am    Post subject: Re: case 1740 uniloader gearbox came apart Reply to specific post Reply with quote

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
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PostPosted: Fri Mar 29, 2013 4:56 pm    Post subject: Re: case 1740 uniloader gearbox came apart Reply to specific post Reply with quote

jb660r wrote:
(quoted from post at 06:58:02 03/29/13) 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.


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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Yuri Lockburner
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PostPosted: Mon Apr 08, 2013 8:47 am    Post subject: Re: case 1740 uniloader gearbox came apart Reply to specific post Reply with quote

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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oldtanker
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PostPosted: Mon Apr 08, 2013 3:45 pm    Post subject: Re: case 1740 uniloader gearbox came apart Reply to specific post Reply with quote

Location? And how much would you want for it as is?

Rick
 
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Yuri Lockburner
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PostPosted: Thu Apr 11, 2013 2:36 pm    Post subject: Re: case 1740 uniloader gearbox came apart Reply to specific post Reply with quote

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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