Lower pivot pin sticking on BH77 with thumb

   / Lower pivot pin sticking on BH77 with thumb #1  

jim_wilson

Veteran Member
Joined
Jun 13, 2004
Messages
1,772
Location
Northeast MA
Tractor
Kubota B3200 w/ BH77 & 12", 18" & 24" buckets, Kubota B50 SSQA w/ 54" & 60" buckets, LandPride FDR1660, Artillian Fork frame, Extreme 3pt rake, Concrete Mixer, MyTractorTools grapple adapter
Has anybody found a greasable pivot pin that will fit in the lower pivot for the thumb on a BH77 with the factory thumb?

I just went to use my thumb today, after not having used it for a good year and a half - and the thing seemed like it was welded in place.

After finally beating it open with a 5 pound sledge and a piece of wood ( so I wasn't hitting metal on metal) - what I finally found was that the lower pivot (the one where the locking bar attaches to the thumb) - was pretty much rusted up bad enough that it was sticking the thumb in place. I've got the pin out and I 'm going to grease it up good before reinstalling - but what I would really like to put in there - is a greasable pin.

Looking at the factory parts blowup on the Kubota site - and it doesn't look like the one they supply comes with a grease zerk. Anybody swapped one in that has the grease zerk?

I'd like to avoid this happening again. The pic below has a yellow arrow pointing to the pin I'm referring to.

425129-lower-pivot-pin-sticking-bh77-bh77-thumb-jpg
 

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   / Lower pivot pin sticking on BH77 with thumb #2  

kcender

Platinum Member
Joined
Mar 26, 2010
Messages
880
Location
Nova Scotia
Tractor
GR2120 B2650 Cab
One possibility is to have one made at a machine shop,shouldn't cost too much.Or maybe you could drill and tap the outside piece to accept a grease zerk.
 
   / Lower pivot pin sticking on BH77 with thumb #3  

bikerdib

Platinum Member
Joined
May 29, 2010
Messages
693
Location
Texas
Tractor
Kubota L4701
Find some boat trailer wheel bearing grease. It's water proof and will last much longer in the field. Grease is basically oil suspended in a thickening carrier substance. Some grease uses a carrier that is very similar to soap and thus when exposed to water it will get washed away. Once the carrier is washed away the oil will quickly disappear.
 
 
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