Bobcat S185 chain issue

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joe4

New member
Joined
May 18, 2020
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Hello all, Im a new memeber looking for help with my skidsteer repair. Ive read a bunch of post already just not finding the info Im looking for. Ok it started last week fired up machine and went to change attachments, seemed like my left front wheel was locking up then freeing up. I dropped the bucket off and went to backup and it didnt want to back up. I ended up going forward enough just to get it into my garage (probably wasnt a good idea, but was out in the muddy field) I was hearing grinding in the chain case while I was driving it to garage.Not knowing much about these machines I called a mechanic buddy of mine who is a good mechanic but doesnt work on skidsteers. With his help we removed the front middle and rear chaincase covers. The left front chain was broke, once I finally got it fished out the chain looked good just one link was broke which I found later when I drained all the oil out. Went to the local bobcat dealer and the mechanic there said the chain looked good so I purchased a link and went on my way. My buddy comes back and helps me get the chain on and weld the new link on. I had already cleaned the case real good with rags and then with magnets, removed a lot of metal shavings found another pin from a chain that was all bent up, thinking it was left in there from a previous repair?? Ok we have the chain on put everything back together add the 8 gallons of fluid and fire it up. We still have the 4 wheels of the ground because I wanted to see if the wheels would stick (lock up).As soon as I went forward I could hear a grinding noise or a clunk I guess, same thing in reverse. I didnt push it hard, didnt want to do anymore damage. Lifted the cab back up, pulled the front chaincase cover and no damage to the chain it is still on. Ok so I was thinking a bearing in the back wheel maybe from just the different post Ive been reading. There is some play in the back wheels, nothing to bad and the front wheels seem real tight. My buddy is thinking the hydraulic drive motor, so he took the side cover off and removed the motor, the shaft seems very loose not sure if thats normal or not he didnt think so. So Im going to take it to a hydraulic shop and see what they think. Ok any thought on my issue with this machine,bearings or drive motor???? Any help will be greatly appreciated as im getting disgusted with it already
 
Im posting an update, I just got back from the hydraulic shop, guy told me its normal for the shaft to move the way it is. So Im thinking it must be bearing in either the front or rear drive shafts and everthing I have read on here sounds like its a pretty tough job!!! Any thoughts guys???
 
Im posting an update, I just got back from the hydraulic shop, guy told me its normal for the shaft to move the way it is. So Im thinking it must be bearing in either the front or rear drive shafts and everthing I have read on here sounds like its a pretty tough job!!! Any thoughts guys???
There is both the parts and service books in the manual thread, you should grab them and read up. Then see if your abilities and tools at hand are up for the task.
 
There is both the parts and service books in the manual thread, you should grab them and read up. Then see if your abilities and tools at hand are up for the task.
Dan thanks for the link for the manuals, I do have the service manual already. I think we can handle doing the bearing job, I am just looking for some peoples opinions on here that have done this before. Im not positive the bearings are the issue, but when we put the front chain back on the sprockets we were trying to get the chain back towards the front of the machine a little just so he could have enough room to weld the link on. We were trying to push the back wheel forward just to move the chain link towards the front but the wheel would only move about an inch or two then stop dead but on the other side we were able to turn the back wheel forward, it was very hard to move it but it would push forward. So what im thinking is the bearing in the back is jammed up in there not allowing the wheel to spin at all. What do you think should I be able to spin that wheel at all or no.
 
Dan thanks for the link for the manuals, I do have the service manual already. I think we can handle doing the bearing job, I am just looking for some peoples opinions on here that have done this before. Im not positive the bearings are the issue, but when we put the front chain back on the sprockets we were trying to get the chain back towards the front of the machine a little just so he could have enough room to weld the link on. We were trying to push the back wheel forward just to move the chain link towards the front but the wheel would only move about an inch or two then stop dead but on the other side we were able to turn the back wheel forward, it was very hard to move it but it would push forward. So what im thinking is the bearing in the back is jammed up in there not allowing the wheel to spin at all. What do you think should I be able to spin that wheel at all or no.
Not sure I understand the situation however if the chain is off the rear it should spin very easy. If the chain is on then your trying to spin the motors which is difficult.
 
Not sure I understand the situation however if the chain is off the rear it should spin very easy. If the chain is on then your trying to spin the motors which is difficult.
The chains are on, all wheels off the ground, I was able to spin the back wheel on the right side but it was very hard just like you said, but I was not able to spin it at all on the side we are working on. The back wheel would move loosely about an inch and that is it, I cant spin it at all no matter how hard I try. I m trying to figure out what is locking up, Is it a bearing in the back wheel??? I already fixed the chain in the front thought I was done, put it all back together and fired it up and ran it with the wheels off the ground and Im getting a clunking like the back wheel doesnt want to spin or a bearing in the inside of the drive motor?? Not really sure what ever caused the front chain to break in the first place is still the problem Im trying to figure out.
 
hi Joe, did you find the problem? im having the exact same problem now. front chain broke after grinding noise. cost me $4500 because they said the drive motor mounting bolts elongated the holes so it was hitting the park break but 2 years later im back to square 1. any info would be great. tia Andy
 

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