Broken pinion shaft

Fedup

Active member
Apr 6, 2016
243
69
28
Winchester
I've been following this for a while now, reading all the suggestions about gear setup. I was wondering how long it would take you to reach this conclusion.
 

pigdoc

Active member

Equipment
G1800S L2500
Aug 19, 2022
279
209
43
SE Pennsylvania
I just have one response, then.

Why did Kubota make the sleeves in 0.1mm increments?
Or, in other words, what variation were the engineers attempting to compensate for?
And, what is the long term impact of ignoring that variation?

Time will tell, I guess.
Granted, if you're only going to put 20 hours a year on a tractor, it is likely to outlive you, regardless of whether the engineering requirements are fully addressed.

I guess I'm conditioned by the fact that all my vehicles are at least 25 years old, and my daily driver is 47 years old. I tend to make every effort to avoid 'using them up'.

Sorry for being so anal retentive.
-Paul
 

GreensvilleJay

Well-known member

Equipment
BX23-S,57 A-C D-14,58 A-C D-14, 57 A-C D-14,tiller,cults,Millcreek 25G spreader,
Apr 2, 2019
11,430
4,913
113
Greensville,Ontario,Canada
Anytime you're machining parts, especially casting, there is a LOT of variation between 'batches' and perhaps pieces within the 'batch', so shims are used to fine tune the final fit.
Even $$$ CNC machines aren't perfect, tooling wears that'll change the dimensions. Even temperature will affect the process. Not much but 1/10th of a mm isn't a lot for final fit. If BOTH pieces are off potentially 2/10ths !

There's a range of 'good enough' you shoot for, then onto the next unit.....time is money !