Fiat 70CI. Repairs, modifications and stories.

The intent of this thread is to provide a single point of reference for owners of old Fiat dozers.
There's quite a few of these dozers still out there, hard at work. There's also quite a lot of hard won knowledge out there.
The idea is to try to get some of this knowledge recorded in the one place, rather than locked away in the heads of the various owners and mechanics.
If you have had to repair or modify a 70CI, please record your story for posterity. Images are nice, but not...

Fiat 70CI. Repairs, modifications and stories.

Fiat 70CI. Repairs, modifications and stories.