Where is the best place to install a hydraulic temperature sensor on a Yanmar VIO55-5B? Is it the tank or the cooler line?

[Harvey Esteban]

I recently picked up a Yanmar VIO55-5B with around 3,000 hours on it, and I'm slowly going through the machine fixing a bunch of wiring and maintenance issues from the previous owner. Pretty sure it was imported at some point because there are a few strange modifications and "hot wire" repairs throughout the machine