I had my shuttle rebuilt about 100 hours ago, along with the 207 engine. I took it on the road to travel 20 miles away, as I arrived, the shuttle started slipping. It still moves good in first gear, but will slip when trying to fill the front bucket. I limped home, using first gear for every hill. After removing lower cover to clean, I noticed a metallic appearance in the fluid, not good I am sure. Cleaned intake screen, replaced fluid with Case Hi Tran, it operates better, but still slipping. If it is on a slight incline, it will not advance from a start in second gear, but will in first. Any ideas? Rebuild in my future? The old hoe is in pretty good shape for its age, I just use it around my place and for family and friends. I am 61, and it is my hobby, but all toll, I am at about 19k. Still cheaper than many hobbies I guess. Thanks for taking time to read, and any offer of insight.
Unfortunately Herbert, there is not much that can be done from outside the shuttle to repair this type of issue. I would think when it was "rebuilt" something has not gone right & has caused your problem. Did you do the rebuild? If there is a metallic look to the oil I would suggest pulling it out again & taking it to someone who is familiar with them for an inspection.
Thank you for reply. I did not do the rebuild, purchased all parts, took the to a local transmission rebuild guy who does more automotive rebuilds than anything, but also some for local heavy equipment as well. I am not a mechanic by any means, but grew up on a farm where you learned to repair anything, but I know enough not to try some things. I will pull it out, take it to a place more familiar, as I should have in the first place. Thanks again for taking time out to offer insight.
Was the torque converter overhauled at the rebuild time as well? These are a critical part of the shuttle operation & should not be overlooked.
I did replace it with a rebuilt one. A friend that has worked profeesionally for 30 years with diggers told me he thought it might be bad, I may have gotten a defective one. It does not slip in reverse, only forward. Could it be the torque converter if this was the case? That would be greta of so, $500 for another one is better than $3000 for another rebuilt shuttle. Thanks again, Herbert
No. Slippage will be from the forward clutch due to either lack of oil pressure or the stack height was incorrect when assembled. When you buy a rebuild kit (this is a BW Im assuming) it comes with multiple thicknesses of drum rings to set the height for proper application travel. It probably has the wrong ring and is not tightening the clutch pack enough for a heavy load. There is only so much piston travel there to work with so the distance has to be correct. There is a possibility that there is a pressure bleed off on the hydraulic side of it, but you would need to pressure test the shuttle to be sure. There is also a slight possibility that the plates were stacked wrong in that forward drum.
You are a wealth of information. I did not purchase a kit, rather all need [as I was told] from a shop a few hours away that I trust and have done business with for years, but tired to use a close local guy for the rebuild. I will take it a few hours away next time. Thank you again, I really appreciate your time, Herbert
I just replaced my hydraulic pump, the slipping started just a few hours after that, could there be any correlation? I did have to increase my pressure control valve one full turn, the new pump over powered. Thanks again, I really appreciate your time!
You really need to set your pressures with a gauge installed so you know exactly where you are at. If you are talking about the hydraulic pump at the front of the engine, there is no correlation that I am aware of.The shuttle transmission pump is on the front of your shuttle case and is driven by the torque convertor.
Thanks, I was going by the advice of the shop that sold me the pump, but everything I have read says not to adjust without a gauge. It is still a bit low I think, but very usable for my needs until I can do that. I guess I am looking at pulling it out. Again, I really appreciate your time. I was just hoping beyond hope there was a simple fix [although there rarely is], but knew in my heart it would need to be pulled.