Kubota RTV 900 transmission problem - hardley moves in gear!
- Thread starter PACKASAURAS
- Start date
aurthuritis
Well-known member
would you scan and post the instructions that came with that kit? could be helpful to others in the future.
Those instructions are crap. No wonder they are free with every kit purchase. I did manage to take lots of pictures. Lubed up everything that moves. Closed everything up.
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aurthuritis
Well-known member
hows it run?
Those are super pictures Dmatlock2 !! great job !! 
collie
collieNot testing yet. Going to review the WSM and make sure I didn't miss anything. I remember some of the bolts need to be sealed. Also must refill transmission case. Should be able to test pressure tomorrow. Strange that the new cylinder block assembly has a groove on the outside and the new bearing has a plastic cage for the balls (not impressed with that). One other advice is to order the kit separately. One gasket was warped.
Plastic bearing cage? I'm surprised, Wonder where they were made...
aurthuritis
Well-known member
nothing wrong with a plastic cage. but i still like metal cause i am old and set in my ways. the cage just holds it all together for assembly and isn't needed when installed. except it might help just a little during a catastrophic failure.
First test was 2000psi just above idle. Then adding more fluid. Then I'm going to let it idle for a few minutes. Check fluid level again. Side note: Charge pump must not be dead after all. Didn't check that pressure. I did my best to prime the charge pump. I made fluid flow out of the pressure test port. I have seen the metal bearing cage fail, almost junked a zd21, got a used pump and got it going again. I still would like a metal one. Seems like plastic would allow the bearing too much slack over time. Also made a huge mess by dropping a bucket of hydraulic fluid from the teardown, spilling over a gallon.
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aurthuritis
Well-known member
what kind of oil are you using?
aurthuritis
Well-known member
congratulations! well done
Now I gotta put everything else back together, uggggg. It was totally worth the effort. I will go get a new set of filters and do another fluid flush. Three cheers for aurthuritis for sticking in there to the end. I could have done it without you, but it's best to seek help from someone with more experience. To get a rtv for the amount of money I paid for it and this repair would have been out of my budget. $6000 for a rtv of similar hours and quality wasn't going to happen in 2015. I seen several reach $9k with sub 1000hr on them.
aurthuritis
Well-known member
yeah you did good. sure thing and it wasn't that hard was it?
I already had some experience with the zd21. I kinda knew what to expect. For someone with 0 experience, I'm not sure I would recommend trying it even with the WSM. WSM lacks lots of details for this task and is too detailed in other non-essential areas. The kit instructions are even worse, mentioning parts and pieces of items not discussed until reassemble steps and the diagrams were pathetic. Poppit L is 7 steps from the end of the instructions. No mention of it before 11.
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aurthuritis
Well-known member
yes those WSM are written and translated poorly. i would like for someone to have those worn parts sent to a lab for a detail analysis to see why they failed so early. i have my suspicions.
aurthuritis
Well-known member
curious. what makes you think that was a defect? rather than something else? what kind of defect?