Greasing a B21 BH Pivot

   / Greasing a B21 BH Pivot #11  
Zoro tool frequently have coupons up to 30% off. Used 15% discount coupon and ordered two zerk thread gauges for $45.22. No tax and free shipping. 2nd one will be for my BIL. Now maybe I can finally get a better handle on the different types of fittings.

Have an assortment of metric zerks but have only found few import pillow block bearing they fit. None on the tractors. Similar assortment set for British threads cost 10x$. Hopefully with a gauge now can know and keep a few of the right kind on hand for replacement.
 
   / Greasing a B21 BH Pivot #12  
IMG_1969.JPG


From ZORO tool. Anodized aluminum plate.

Thought about trying to make something from labeled male zerk fittings. Only have a few taps used in the gauge with none of British threads popular with Kubota. I had go to Kubota and point out the fitting on a drawing at the parts counter for them to hand me a zerk in a plastic packet. They don’t even the thread size. Now maybe I can figure these out and buy cheaper.
Might not be a big issue for new tractors but I have always bought used and have had to figure out repairs. Probably one of the few negative problems on Kubota loaders and backhoes.
 
   / Greasing a B21 BH Pivot #13  
View attachment 712728

From ZORO tool. Anodized aluminum plate.

Thought about trying to make something from labeled male zerk fittings. Only have a few taps used in the gauge with none of British threads popular with Kubota. I had go to Kubota and point out the fitting on a drawing at the parts counter for them to hand me a zerk in a plastic packet. They don’t even the thread size. Now maybe I can figure these out and buy cheaper.
Might not be a big issue for new tractors but I have always bought used and have had to figure out repairs. Probably one of the few negative problems on Kubota loaders and backhoes.

Smokey, I've been making some mods on the M59's foot pedal thumb control... and was surprised to find that some of the parts and pins there are imperial inch measurement rather than metric. I wonder where the BH was made?
rScotty
 
   / Greasing a B21 BH Pivot #14  
Smokey, I've been making some mods on the M59's foot pedal thumb control... and was surprised to find that some of the parts and pins there are imperial inch measurement rather than metric. I wonder where the BH was made?
rScotty

Bought my M59 without a backhoe and took years to find one. My research found they were made in Georgia but unable to buy directly without thru a dealer.

I’m sure some parts are sourced thru Kubota and others built to their specs.

Often thought of adding a hand lever to the thumb foot pedal to help me with some fine tuning control for placing rocks. Other work the foot pedal works OK. Probably speaks more to my lack of coordination.
 
   / Greasing a B21 BH Pivot
  • Thread Starter
#15  
Wow. Thanks for all the replies. Somehow I was not subscribed to my post and thought there were no responses at all.

These fittings look like the "M10" fittings in the kit I ordered and returned to Amazon. Metric and SAE, all sorts of angles. How could I go wrong?

Easy, the threaded end was WAY off. The ones in the kit were quite "coarse", the ones in the machine are quit "fine".

Anyway, my problem is I cannot get any of the grease gun ends I have to snap on to the zerk. I even bought another Lock N Lube made for recessed fittings. It worked on the top one, popped it on and screwed down the collar and it worked great. But the bottom one, not so much. Could not lock that on the fitting, it would pop off as soon as I tried pumping grease into it. Turns out, the diameter of the "locking collar" on the LnL adapter is pretty much the same as the diameter of the recess the fitting is in. Seems the top recess is just a bit wider than the bottom one, so the adapter can get deeper.

I've tried a few things and may just try turning down the locking collar, which easily screws on and off the adapter, being careful not to lose the "ears" that grab the zerk.
 
   / Greasing a B21 BH Pivot #16  
There are a few zerks on the EA wicked grapple whose recess in the pin is slightly too small for the lock and lube coupler. Contacted Travis at EA of the problem was told it wasn’t a big enough problem for them to simply change their CNC settings/tooling. My regular grease gun coupler works fine. Might check your local store for a different coupler first.
 
   / Greasing a B21 BH Pivot
  • Thread Starter
#17  
There are a few zerks on the EA wicked grapple whose recess in the pin is slightly too small for the lock and lube coupler. Contacted Travis at EA of the problem was told it wasn’t a big enough problem for them to simply change their CNC settings/tooling. My regular grease gun coupler works fine. Might check your local store for a different coupler first.

The problem for me is it pretty much has to be a right angle coupler as there is not enough space to tackle it straight on. And those that just "push on" are pretty hard to get on and off, I imagine, for the same reason. My fingers and hands are not young anymore.

As far a EA goes, how hard can it be to make a couple of changes to a CNC program? Especially since it is all "in house". I have a little (just a little) exposure to CAD and, seems to me, all you have to do is change the diameter spec and regenerate the CNC machine files. If the CNC stuff is connected to the CAD platform, maybe even easier. Maybe they farm out that part?

I'd have thought it simple to just change the zerk to a 45 degree fitting, but even that seems to be a buy one try one thing. Just irritating.
 
   / Greasing a B21 BH Pivot #18  
Don’t recall any trouble with the B20 or current B26 fittings except for a few that were sheared off. Again dealer or British pipe thread supplier. Be hard to match or change to an angle fitting without knowing the thread type. Just a few of us seem to be having this issue. I know I have forced and cross threaded SAE a few times to keep working. Works but not really how I like to roll.

Surprised at EA response. But even with Kubota the salespersons are the point of contact not engineering or production. Opportunity for their competitors.
 
   / Greasing a B21 BH Pivot
  • Thread Starter
#19  
Just to follow up, I unscrewed the cap on the right angle Lock N Lube adapter, chucked it in a mini lath and increased the "chamfer" (or bevel) on the zerk end, cutting down the diameter so it could fit down a bit further in the recess and it worked fine.
 
   / Greasing a B21 BH Pivot #20  
Fitting out some zerks for the old JD today. Thanks to SmokeyDog I ordered a thread gauge from ZORO last year about this time.
Looks like there at least 3 different thread sizes on the tractor...maybe more. Nothing Metric or British so far.
Not sure just what the difference is between 1/8 NPT and 1/8 THRD FORM.
rScotty
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