620 operating temperature

bobgrimes · May 14, 2018

What is an appropriate operating temperature for a John Deere 620 (1956)?

Dan in Ohio · May 14, 2018

Really depends on what you use it for. For light work like bush hogging 5 - 10 acres you might get by with a stat that runs in the 190-195 range. Working it less than that I would use a stat that runs around 170. I put a 195 degree stat in one of my 70's and am sure it has not opened due to lack of hard work. Like to see that temp gauge work and know the coolant is circulating as it should.

PJH · May 14, 2018

My 630 warms up to 180 on the temp gauge.

Without a thermostat, it would barely move the needle.

buickanddeere · May 15, 2018

195F any time .

620 operating temperature

bobgrimes

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Dan in Ohio

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PJH

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buickanddeere

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