Case 1835b Occasionally no drive

[KyferEz]

I recently purchased a Case 1835b with Perkins Diesel engine. I did nearly a full fluids service of it (all filters and fluids, except the chain compartment oil). I've been running it for maybe 10hrs now and noticed occasionally it will loose all drive capability. I think perhaps it's due to hydraulic oil being low, as there is a leak I've not been able to identify where is coming from yet - it's somewhere underneath as it drips out of the hole where you access the oil drain and out of the front drain holes. However the bucket controls still work fine when this happens. Usually if I just let it idle for 15 seconds, or sometimes put the bucket down, it will start working again.

I do have the service manual in PDF which I will send anyone a link to if they like. But I've not found any info on hydraulic fluid level checking.

So I have a few questions:
1. I see no way to tell how much hydraulic fluid is in it, how can I tell? I'm trying to figure out how much I'm loosing.
2. Can someone confirm if being low on hydraulic fluid will cause the loss of drive?
3. Are there any access panels that would help me see underneath the thing to identify where the leak might be coming from, aside from the ones under the seat?

Thanks!

 

[KyferEz]

Well I answered #3, the panel where the feet go comes out easily with 4 bolts. And I think I found the issue. One hydraulic line to the drive motor is damaged and there's a puddle of fluid under it. Need to confirm it's indeed leaking but that should be easy enough once I clean things up and try moving it around with the panel off.

 

[alrman]

Welcomre to HEF @KyferEz

It not a good idea to run these without oil - high priority to make sure level is correct.

 

[KyferEz]

Thanks! Seems my level sight glass is a plug instead which is why I couldn't tell :/ have to replace that!

I ran it some and didn't see any leaks but it was super nasty and hard to tell anything. So I spent a few hours and cleaned and pressure washed out the area around the drives. Wow it was nasty. Will lay down some pig mat tomorrow and run it to see if I can identify anything dripping.

 

[KyferEz]

Well still haven't identified the leak :/. Stripping it down more... Once I identify the leak I'll also go ahead and replace that one damaged line since I have it far enough apart it will be pretty easy and because it's quite damaged in 2 places, it will rupture eventually.

 

[KyferEz]

Finally found it. Took more cleaning. All in all I extracted about 3cubic feet of oily mud from the bottom of the unit. Pressure washed for hours and hours. Sure would have been nice if there was an access panel on the bottom to help with cleaning it out!

One of the fittings on the line to the left motor was dripping. Also decided since I had it apart and the controls were a bit worn, and the holes in them were all egg shaped, to drill them out and make some brass bushings on the lathe for the drive arms and handles. Turned out pretty decent.

 

[KyferEz]

Annnnd that wasn't the only leak. After I pulled up the pig mats, found another from the parking brake. Looks like the boot is leaking quite a bit. Any idea where I can find one?

Looks unavailable... If noone knows where I can find one maybe I can 3d print one using TPU filament.

 

[KyferEz]

While I'm thinking about it, why would the parking boot be leaking hydraulic oil? What's on the other side of the boot? Is it a oil bath or something?

 

[KyferEz]

Well another group helped me on that; it's the oil bath for the chain. The only way Hydraulic fluid is leaking into there is from a bad motor seal. That's what I was hoping was not the problem. Sigh guess I get to pull the hydraulic drive motor and rip into it. I paid too much for this machine to have these issues

 

[alrman]

You need to ascertain if the drive motor is actually leaking.

I can't recall how high/low the park brake boot is situated on the chaincase OR if the chaincase has an oil level plug. But, if you remove the inspection covers, the oil level would just cover the chain at the lower part of the axle sprocket - sit between an inch or two of oil depth on level ground.

Set the oil to correct level & run the machine for a while to see if the hyd oil level drops & is entering the chaincase.
Those drive motors did have a habit of cracking the head of the motor.

From memory, with the machine raised off the ground & the chaincase covers off ( & front cabin lower plate removed??) you could see the oil leaking from the front of the drivemotor, while operating the drive.

 

[heymccall]

Don't rule out rain water as to the source of the high chain case oil level. Never did keep water out on my 4 1845C.

 

[KyferEz]

Don't rule out rain water as to the source of the high chain case oil level. Never did keep water out on my 4 1845C.

I don't store it where it will get rained on.

 

[KyferEz]

I propped it off the ground. After running a minute it started leaking out the chaincase and hydraulic level was down, so it's definitely the motor. Waiting on some AN12 male and female plugs to come in tomorrow and will get the motor out. I did pull off the cover and also one of the roller bearing pins is missing out of that bearing. Pretty sure I didn't loose it taking it off. Sigh...

Anyone have a parts manual so I can identify the shaft seal and cover bearing part numbers?

 

[heymccall]

Here...

OEM Case IH Parts & Accessories (In-Store & Online) | Messicks

Messick's has industry's largest ready-to-ship, in-stock Case IH parts inventory with an impressive selection of 30,000+ unique part numbers.

www.messicks.com

 

[KyferEz]

Motor seal kit is $619 and output seal is $44? That's crazy pricing! Surely that seal is a standard off the shelf part from some seal maker that only costs $6 or $7 direct from them. It sure looks standard enough... Guess I'll take the motor apart, measure the sealing surfaces, and try to find a substitute from someone like theoringstore website.

 

[B&B]

Motor seal kit is $619 and output seal is $44? That's crazy pricing! Surely that seal is a standard off the shelf part from some seal maker that only costs $6 or $7 direct from them. It sure looks standard enough... Guess I'll take the motor apart, measure the sealing surfaces, and try to find a substitute from someone like theoringstore website.

I have a paper manual and can get pictures of any sections you might need, seems like mine always has a weep in the belly pan no matter how many hoses I change.

 

[HarleyHappy]

Wait till you find out that the output shaft and bearing is a one piece unit and it’s 1100 bucks.

 

[Old Doug]

I have a 1830 Case . Mine had a lot of dirt and stuff in the belly i had to make a hoe to rake it out. I am the kind of guy that will try to fix or build parts for obsolete stuff . I have gotten a lot of use out of this machine and hope to get more but if i some how got rich a new skid steer would be one of the first things i would get.

 

[KyferEz]

Wait till you find out that the output shaft and bearing is a one piece unit and it’s 1100 bucks.

I don't see what you are referring to. The output shaft isn't available, but was available separately. In any event if I had to spend $619 on a seal kit I'd just buy a motor for $1350 and save myself the hassle.

I got the motor out, was a bit of a pain. Time to get it apart...

 

[stefuel]

Before you get to much further, crack the plug for the chain case drain enough to see if oil or water is coming out.