BX-2200 transaxle filter imploding
tool man
Join Date: Posts: 1 |
2006-05-07 129045
tractor ran great until filter buldged out and ruptured. Installed another and got about an hr of run time before it ruptured again. I own all the service manuals and none talk about this happening. Where would you start trouble shooting?
eager to fix
tool man
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BX-2200 transaxle filter imploding
AV8R
Join Date: Oct 2003 Posts: 882 North Central Wisconsin Pics |
2006-05-07 129046
The dealer?
Seriously, that sounds like a major problem. ....
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BX-2200 transaxle filter imploding
earthwrks
Join Date: Dec 2003 Posts: 3853 Home Office in Flat Rock, Michigan Pics |
2006-05-07 129051
Seems a little odd that it took an hour of use to develop the problem again. Typically hydraulic problems are instantaneous---all things being equal. I'm thinking you must be using a hydraulic circuit which could be the cluprit some time after you are using the machine for awhile. Does it have a loader or aux. ports which have quick disconnects? It still shouldn't affect the system but a quick disconnect that isn't fully seated will prevent a cylinder from working properly causing a relief valve to blow by. Perhaps the relief valve isn't working. ....
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BX-2200 transaxle filter imploding
Art White
Join Date: Jan 2000 Posts: 6898 Waterville New York Pics |
2006-05-08 129066
Alright, what adjustments to the hydraulic system have been made? Is it a Kubota filter? ....
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BX-2200 transaxle filter imploding
yooperpete
Join Date: Jan 2004 Posts: 1413 Northern Michigan Pics |
2006-05-08 129067
When changing the filter, did you also change oil? If so, do you have the correct oil weight in it? Could it have a slug of contamination in it? ....
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BX-2200 transaxle filter imploding
DRankin
Join Date: Jan 2000 Posts: 5116 Northern Nevada Pics |
2006-05-08 129069
That is not an IMplosion. It is an EXplosion in progress.
See Art's comments........... ....
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BX-2200 transaxle filter imploding
Murf
Join Date: Dec 1999 Posts: 7249 Toronto Area, Ontario, Canada Pics |
2006-05-08 129074
Off the top of my head it sure sounds like you have a 2 hydraulic hoses reversed and are thus pressurizing the return line.
Not a good thing .......
Best of luck. ....
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BX-2200 transaxle filter imploding
tool_man2
Join Date: May 2006 Posts: 11 ohio |
2006-05-08 129107
Art,
The oil was changed along with the OEM filter this past fall, probably have put 10 hrs on the machine before this happened. Whats confusing is the machine ran fine. Tonight I took the low and high pressure plugs out and tomorrow I'm going to buy test plugs for gauging. My thought is possibly the high pressure check is leaking through and sending enough volume of oil that the low pressure relief can't handle it all. If this is the scenario, the tractor would run except for achieving proper speed. I can't confirm this because I was mowing the the lawn at time of incident. You think I'm heading in the right derection?
Regards,
Tool Man ....
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BX-2200 transaxle filter imploding
tool_man2
Join Date: May 2006 Posts: 11 ohio |
2006-05-08 129109
eartwrks,
The machine has a FEL which was off at the time. I checked the quick disconnects and they appear to be ok.
Regards,
tool man ....
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BX-2200 transaxle filter imploding
tool_man2
Join Date: May 2006 Posts: 11 ohio |
2006-05-08 129110
DRakin,
I agree EXPLOSIAN, still not a good thing
Regards,
tool man ....
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BX-2200 transaxle filter imploding
tool_man2
Join Date: May 2006 Posts: 11 ohio |
2006-05-08 129111
Murf,
All hoses appear to be ok.
regards,
tool man ....
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BX-2200 transaxle filter imploding
earthwrks
Join Date: Dec 2003 Posts: 3853 Home Office in Flat Rock, Michigan Pics |
2006-05-08 129119
What do mean by "removing high and low pressure plugs"?
Also, if your orange is anything like my blue, the hydro pump is isolated from the accessory pump. And if I'm not mistaken (and I could be---too lazy to go look) they're both separate from the power steering (Super Steer) system, so it wouldn't make sense about getting up to speed since they may not be related. ....
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BX-2200 transaxle filter imploding
tool_man2
Join Date: May 2006 Posts: 11 ohio |
2006-05-09 129131
earthwrks,
everything you said is the same as my orange. The suction oil which the transaxle uses is all the diverted oil from the other systems going back to tank. Beyond the filter, towards the Hydro motor and pump you have a low pressure relief valve set at approx. 70 lbs. This is what I will be monitoring. This low pressure passage also feeds the Hydro pump and motor. When the varible displacement pistons are on the unload end they pull from this low pressure passage. When the pump or motor see high pressure a check valve closes at this passage. I'm hoping to find my excessive pressure in the return system here. It's a start any way. Wish me luck!
Regards,
tool man ....
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BX-2200 transaxle filter imploding
Murf
Join Date: Dec 1999 Posts: 7249 Toronto Area, Ontario, Canada Pics |
2006-05-09 129138
Toolman, there is only one way to blow a filter, you have pressure(and lots of it) where there should be none.
Basically look at everything that was touched since it was last run when it didn't blow the filter off. If no lines have been touched then it has to be internal, and there are very few things, like the relief valve you mentioned, that could cause that to happen.
Best of luck. ....
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BX-2200 transaxle filter imploding
Art White
Join Date: Jan 2000 Posts: 6898 Waterville New York Pics |
2006-05-09 129150
Is this a BX22 or a 2200, just checking. ....
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BX-2200 transaxle filter imploding
earthwrks
Join Date: Dec 2003 Posts: 3853 Home Office in Flat Rock, Michigan Pics |
2006-05-09 129167
Toolman I have my doubts about that low pressre line---my experience is that is what is called the "charge" line to keep the pump swash plate against the small slippers on the ends of the pistons, and keep the seals and bearings wet. Here's a thought: I have a large Case trencher with a dozer engine in it. I was trenching one day under full power when it caught on a chunk of concrete and it siezed up so quickly the pump relief valve didn't have time to react and so the pump front seal blew out filling the pump drive box and out the vent. You may have the same sort of thing where errant pressure is going to the wrong place---I dunno. (Trencher is for sale too) ....
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BX-2200 transaxle filter imploding
tool_man2
Join Date: May 2006 Posts: 11 ohio |
2006-05-10 129178
Art,
BX-2200, 2001 model.
Regards,
Tool Man ....
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BX-2200 transaxle filter imploding
tool_man2
Join Date: May 2006 Posts: 11 ohio |
2006-05-10 129180
earthwrks,
Unfortunately I can only view 1/2 of your response due to not being a premium member. So far I like how this discussion thread is moving and I'm seriously considering to join, maybe at a later date. You are correct by calling this the charge sytem. Is it possible to reply with the later portion of your previous response?
Regards,
tool man ....
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BX-2200 transaxle filter imploding
Art White
Join Date: Jan 2000 Posts: 6898 Waterville New York Pics |
2006-05-10 129181
This is not at all a common problem or one that I've heard of on these tractors but it can happen as I've seen it before on others. ....
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BX-2200 transaxle filter imploding
Gearhead
Join Date: Jul 2005 Posts: 75 SEVEN mILE OH |
2006-05-10 129203
Shounds like the charge releif valve is getting stuck. ....
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BX-2200 transaxle filter imploding
tool_man2
Join Date: May 2006 Posts: 11 ohio |
2006-05-11 129213
To all,
Recieved all my test ports and gauges. Last night I started with a visual exploratory. Removed all plugs where the test ports were going to be installed. Looked in all passages with a pen light. BINGO! found a blockage inside the charge relief passage. Used a small packing puller hoping it it was soft yet durable to be extracted. No good, the pieces which I was removing appeared to be a rubber gasket. Tried back flushing and was able to open the passage but there is still material in there. I've elected to pull my Transaxle and open it up. My guess at this point is at one time somebody used a generic filter which came apart. I will keep you all posted with more detail as I dig further. I hope it was a generic filter nad not an OEM Kubota filter !
Thanks for all the help,
Keep tuned in for further details,
Tool Man ....
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BX-2200 transaxle filter imploding
tool_man2
Join Date: May 2006 Posts: 11 ohio |
2006-05-14 129338
To all,
All fixed and back to mowing. Just a major labor job, 20 hrs total and did'nt have to buy a part other then another filter.
Thanks,
Tool Man ....
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