s219
Super Member
- Joined
- Dec 7, 2011
- Messages
- 8,548
- Location
- Virginia USA
- Tractor
- Kubota L3200, Deere X380, Kubota RTV-X
I'm in the minority here. I think the tube is only there to align the QA when hooking/unhooking.
Reinforcing it will transfer the stress to the loader frame if something goes wrong, rather than simply twisting the "fuse".
No you are right and I am in agreement. Deere uses a solid rod with shear pins on many of their loaders. If that doesn't explain it right there, not sure what else to say. There are many other designs that have a plate and don't need a timing rod, but when you see separate left/right attachment ears with a rather wispy looking tube or rod, it's just there to keep the two sides in sync when there is no attachment. The attachment itself is intended to provide the structure to handle loads, not the timing rod.
In cases where there is a pin-on bucket, there won't be a timing rod at all since they assume the bucket is always there. In fact if you look at the way Kubota does it, everything is identical up to the "pin-on" part of the loader, and either a bucket pins on, or the QA ears / timing rod arrangement pin on. The loader arms themselves do not have any reliance on the lack of or presence of a timing rod for structure, therefore it's not something that would need to be beefed up when there is one.