KL-120 Bucket rolling forward slowly on it's own

[malk315]

My brother came by and told me his welder was going to be at work tomorrow and he's going to have some hooks welded on my bucket. Will make picking up the mower deck for storage in the shed much easier.

I fired up the CK20 to pick up the bucket a bit so we could work the pins out so my bro could put it in his truck.

I picked it up and rolled the bucket back a bit and it wouldn't stay in position -- it would gradually roll forward.

The only thing I did different than any other winter start up was I didn't wait for full warm up before messing w/ the loader much. I can't see why that would cause the bucket not to stay put??

I haven't checked hydro oil level yet -- but will next time I head out.

As little as a month or so ago it was full (haven't run the machine other than once a week to warm it up just to keep it running in these cold times). I haven't seen any oil on the garage floor or anywhere, so I can't see how it's possible it would go from full to not full w/o oil leaking and virtually no work being done w/ the tractor.

Is is possible I've got air in the bucket-rolling cylinders?

After the bucket was off and my brother left for the night I took the machine out for a spin just to get the fluids moving through it since I had warmed it up and wanted to let the battery charge a bit etc. After which I picked the loader frame up to where the bucket pins were about shoulder height and tried pulling pretty hard down on them (much more than the weight of the bucket would), and could not reproduce the problem -- i.e. the bucket rolling cylinders were each able to hold in position w/ me pulling w/ a lot of force.

Is it a fluke ?? did my movement of the cylinders after warm up possibly purge some air that might've worked in there after sitting a while and not warming it up???

Hoping this isn't the start of new problem...

Any info as always appreciated.

Looking forward to my bolt on loader repair kit and 50 hour service this spring. Will inspect for cracks before it goes in for bolt-on kit and report back. My loader fits the serial # range on the letter annoucing (pre-maturely) the loader repair program.

Only other issue I want to fix is my brake pedal rubs on the hydraulic lines when pushed all the way down. Hoping dealer can adjust pedal or lines to avoid this at 50 hour service.

Otherwise I've been pretty happy w/ the machine.


-E

 

[Steve_Miller]

Mine did that a fews times last fall, I was hauling some brick chips and the bucket would roll forward a few inches on its own and stop after I had it curled all the way back. It was in the valve as I swapped the hoses with the lift cylinders and they did the same thing. After a short time it stopped doing this and hasn't done it again. I guessing something was caught in the spool of the valve.

Steve

 

[kentrodngun]

I seem to have a similar issue with my KL-122 FEL. When the machine sits, the bucket rolls forward a couple of inches. I start it up, lift the bucket and then have to roll it back. I've been doing this for years and it's no big deal. It operates fine and holds pressure while running, so I've taken the position "What harm can it do?" It's a hard worked machine and most of us older machines wind up leaking something, somewhere down the line

 

[Steverino]

My KL-130 has done that a couple of times. Then after I use it for a while it stops. There must be a little stickiness in the valve somewhere. It is a real pain when you are carrying a load and you have to keep feathering the control so it won’t spill. I am hoping it will seat itself in little better with more use. I sure hope these valve don’t become another crack issue.

 

[malk315]

So I got my bucket back w/ a really nice hook setup (two chain hooks, one on each end, and a shackle type w/ spring loop clip in the middle).

Put the bucket on and greased the pins good.

The problem of bucket rolling forward disappeared.

Cleared a bunch of snow w/ no issues whatsoever...

I'm thinking perhaps some air was in the bucket cylinders or perhaps some moisture froze somewhere making a valve sticky. Just guesses as I have no clue.

When the problem happened, I hadn't warmed the machine up much... I'm thinking any air was bled out of the cylinders and any moisture / ice was taken care of w/ the HST oil getting good and warm getting worked moving snow...

So tomorrow my brother may be stopping in w/ a Kubota Excavator w/ Hammer attachment to break up a rock to the side of my shed to perpare to install a new roll-up style door so I can finally plan on putting the CK-20 in the shed. Meant to have that project done before winter, but here we are it's february and my car is still outside w/ kioti in the garage! At least I have my priorities straight when it comes to car vs. tractor.

I'll try to get some pictures taken of the new hooks and action shots of rock breakage... The Kioti will certainly get involved w/ moving pieces of rock out of there.

 

[malk315]

Hammering of rock next to shed was a smashing success today!
Got some video of it I encoded in DivX format TBN won't seem to let me attach to this post so I've got a link. Not sure how many of you will be able to view it as it's not the most popular video format.

Videos are online here (I only have 256Kbps upstream, so they will take a bit to download):

Kubota Mini Excavator Hammer

Used my CK-20 to pile all of the rubble and next step is to put a nice big door on that side of the shed so Kioti can finally be easily driven into the shed.

Tractor did a great job getting into the rubble and getting it all out of there.

 

[BTDT]

May be due to the cold (outside temp). When things warm up will probably go away. Things tend to shrink when cold, so seals may be not sealing as well until fluid warms up.