BX LA211Control Valve Assembly

[Roy]

On another thread, I had mentioned that my LA211 Snap Ring keeps disappearing. Uploaded a pix; the screwdriver is pointing to the indent which normally has the snap ring.

OK… did they redesign? Anybody else loosing the ring? I do not perceive any real function (change of behavior, with or without) the thing performs.

My apologies for the poor quality pix. Hooked up an old Quick Cam I have to my laptop. The video camera was leading edge years ago, but sure is poor by today's standards. /w3tcompact/icons/frown.gif


Roy

 

[Anonymous Poster]

roy
my 211 loader has snap ring and washer,if you didn't replace washer at same time the snapring could work off by working directly on valve frame. also that type of ring sometimes needs a little help to seat,like pliers sqeezing it into the groove to bottom it out.one other thought can't tell on mine unless i take it apart,but some snap rings have a tapper on one side if so it must be installed tapper in or it can work off very easy.this has happend to a grader from the factory,came off inside trans.and lost trans.oil pres. John Deere 570A. don't know if i helped or hurt you,good luck! my BX is about 8 mnths old,136Hrs.Again Good Luck!

 

[Roy]

Tim; I forgot about the washer! First time I lost it, I salvaged the washer. (I heard it fall, which made me realize something was amok. Found the washer, but not the ring). When I picked up he new ring, the Kubota parts guy brought to my attention that there are the two sides to the ring (I never knew that one). He showed me the tapper, and I installed it, as both you and he suggested, tapper-in.

I used a pair of lock-spring pliers, but what I didn't do was give the ends a 'pinch' as you suggested. Still wondering if it's worth going through the replacement and then possibly loosing another spring and washer, for something that may be useless. If someone can figure out a value-add, then I might consider drilling a small hole and replacing the lock spring with a cotter pin.


Roy

 

[GlueGuy]

Roy,

The snap ring and washer are missing from mine too. Didn't even know they were gone. This may explain the rattle (or at least part of it /w3tcompact/icons/smile.gif). There is also an excess of play between the cotter pin (up inside) and the side of the joystick control. There is one washer, but it looks like there is room for three or four washers. I think I'll add some more washers to take the play out. I think that will fix it right up.

Let you all know when I get it done.

The GlueGuy

 

[Anonymous Poster]

Roy,
If it was me i'd fix the problem,snap ring or cotter pin would work fine.the only reason i would is Saftey, for some day when you least expect it the dam thing will lift up out of the hole and jam just as you need to drop the bucket fast to avoid rollover or something.Just the rule of thumb what can go wrong usualy will.At least thats my luck sometimes.

 

[skent]

Oh now you done it Roy, I just looked (see attachment) and mine is missing too. (My wife thinks Im crazy, playing on the puter' and running downstairs to take pictures of the tractor - then running back upstairs?!?) There's gunna be a run on the rings and the price gunna go thru the roof! (supply and demand) If it;'s that much of a problem - does Kubota know about it?

 

[skent]

AND. . . . . if-in you push up on the subject shaft in question (at least on the LA271) the shaft goes in and has lots of slop in the control pattern. (see attachment)

 

[TresCrows]

Well, I think we are all crazy sitting around talking on the computer about our lawnmowers /w3tcompact/icons/smile.gif but then so what. Anyway, I went and looked at my little BX and the washer and snap ring are tight as a tick and happily in place! Sooo, what to do? --I would go get some .020 safety wire and thread it throught the snap ring ears and twist it tight and then in best aviation practice pig tail the wire back on it self so it does not slice your hand. What y'all doin to dem thangs anyways? J

 

[Roy]

TresCrows; I like your fix, unlike drilling a hole, it's reversible (just in case this is an epidemic, and Kubota comes out with a Service Bulletin). I'll give it a go. Thanks.

Skent; When I picked up a new ring the first time, I had asked if this was a known problem, they said it not. Who knows, it may be prevalent, but a lot of owners don't even realize it's missing (like GlueGuy and yourself). The only reason I had known was because I heard it fall that first time. So, I started to check it every now and then. If it were just our two, then I would expect a black-market operation… a gang of ring thieves running the B'more-Frederick corridor to get that demand up/w3tcompact/icons/crazy.gif.


Roy
ACC-3, PAC 10-0. One more to take care of.

 

[GlueGuy]

Well, adding a couple of shim washers and a cut-up piece of inner tube fixed up the rattle. However, the washer/snap ring is still missing /w3tcompact/icons/frown.gif. The snap ring doesn't appear to be all that critical. I tried pulling the whole assembly up, and it won't go up past the point where the shaft is flush with the bottom of the assembly.

The GlueGuy

 

[Roy]

GlueGuy; I don't have the rattle problem myself, but I am curious. What was the tube slices for? Like yours, my shaft also cannot pull up out of the hole, one reason I wasn't overly concerned. (But as Tim mentioned, jamming could be a possibility, so I will fix it. Another item on my to-do list /w3tcompact/icons/frown.gif).

Roy

 

[GlueGuy]

<font color=blue>was the tube slices for?</font color=blue>

I was afraid if I took all the slack out with washers, that it would maybe "bind up". The safer course was to put something flexible; like a washer made of rubber. Now with all the slack out, even the cotter pin doesn't wiggle.

The "slack" was in the horizontal shaft that the joystick rides on. There was almost 3/8" between the washer and the side of the assembly. The loose washer was what was making all the noise.

BTW - While I had the whole thing apart, I put a little dab of grease on the space between the washers, and on every pivot point. Loose as a goose, but no rattles. I'm a happy guy /w3tcompact/icons/smile.gif.

The GlueGuy

 

[art]

From time to time we find the shafts and the levers on the loader control valves tight. The reason the lever is as loose as it comes from Kubota is so it will not freeze up to the shaft. On the shaft with the snap ring I would wonder that with the snap ring coming of that that would be from the shaft being too tight and forcing off the snap ring as it being the weakest point.

 

[GlueGuy]

Roy,

I just got off the phone with my service guy at the local Kubota dealer. He sent me a fax of the part break-out for my FEL control valve assembly. Turns out there is a good reason to get the snap ring (and collar underneath it) replaced.

They not only hold the assembly down, they also retain the bushing that the control rides inside of. According to my service guy, the bushing fits in there "kind of snugly", but it's possible for it to fall out if the collar and snap ring are not there. /w3tcompact/icons/frown.gif

The GlueGuy

 

[Roy]

Thanks, GlueGuy! When I get off the computer, I will have to check and make sure the bushing is still in place (that no damage was done). Any chance of uploading the fax in jpeg or bmp format? Thanks.

Roy

 

[GlueGuy]

<font color=blue>Any chance of uploading the fax in jpeg or bmp format?</font color=blue>

Will do that tonight when I get my hands on the scanner./w3tcompact/icons/smile.gif

The GlueGuy

 

[GlueGuy]

Roy,

Attachment is the break-out drawing of the control lever assembly for the LA302 loader on my B7500. I suspect that the assembly on your BX is different. The bushing in question is part #20 on this drawing, and the cir-clip (AKA snap ring) is part #40. Part #30 is called a "collar", and goes under the cir-clip.

The GlueGuy

 

[GlueGuy]

This second attachment is the parts list for the first attachment.

Appologies for the image quality. This is a scan of a fax of an unknown document quality/w3tcompact/icons/crazy.gif.

The GlueGuy

 

[Roy]

Thanks, GlueGuy! /w3tcompact/icons/smile.gif Without taking it apart, I beleive that my unit is setup the same as yours. Outside of the 2 known missing parts, I'm OK. The image quality was just fine.

Roy

 

[Roy]

Just picked up, and installed a replacement washer and clip. My dealer provided them per gratis <font color=orange>{Attention all Central and Western Maryland residents!} </font color=orange>, they didn't ask for anything in return <font color=orange>{If your in the market for a tractor, ZTR, implement or even a chain saw}</font color=orange>, not a thing. Before putting them on, I cleaned off the surface. I seem to have been over lubricating the joystick this winter, <font color=orange>{Check out Frederick Kubota}</font color=orange> which may of contributed to the loss. Couldn't do the wire trick though. Just not enough room to pass a wire through the holes and the washer once it was on (and I needed the holes free for mounting). I will keep an eye on it, <font color=orange>{Great staff, and a service department who really know tractors!} </font color=orange> and if I loose these, will probably go with the drill/cotter pin solution. Just wish that there were something I could do in return for the dealer /w3tcompact/icons/smile.gif.

Roy