dfkrug
Super Member
- Joined
- Feb 3, 2004
- Messages
- 7,619
- Location
- Santa Cruz Mtns, CA
- Tractor
- 05 Kioti CK30HST w/ Prairie Dog backhoe, XN08 mini-X
If I replace the sheer pins it just breaks them off the first time so I've given up on replacing them.
Just saw your post.
My JD 420 loaders were just like your 460, and many other Deere FELs. For those who don't know
JD's unique design, the "timing rod" is used to keep the 2 quick-attach brackets in alignment when
there is no implement (bucket or forks, usually) attached. Since the 2 brackets are not connected,
they will ALWAYS move at different speeds, unless somehow constrained. That's what those
wimpy 1/4" shear pins are for.
You can just live with the broken pin, as many JD owners do, go to a bigger pin, as the JD bulletin
suggests, or fix the cause of the shearing. The usual cause is a bent bucket cylinder rod, which
makes one cyl move with much greater resistance than the other.
The 420s, often had bent rods, since they were only 25mm. The 430s, 440s, and 460s use bigger
rods (30mm?), but still can be bent. The bent rod is often not detected until the owner removes
the bucket and the shear pin breaks.
Fully extend the cyls and put a straight edge on them to test for bending. I straightened mine.