Yong Heng Max Temperature?

Today I finally had a chance to use my YH compressor and I would say it worked as it should. The temperature was rising more rapidly then I expected! I was using 3 frozen 20oz bottles that obviously wasn't enough ice for my session. I did bleed off the moisture every 3-5mins or so to let the compressor cool. flThe highest the temp got was 65°C before I shut it down to cool and that was on the final round of filling. I don't know what I did with the manual if that's even any good. What's the max themp on these YH Compressors ?
 
Yong Heng manual:

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I do not let mine go over 52°C. I also change the oil (Royal Purple) about every 3-4 hrs of run time.
 
Shoot, I've been changing my oil around 1.5-2hrs run time. It says you're not supposed to fill tanks with this comp. But I only use it for a 9 litre tank. I dont run it past 60 degrees C. That happens to be where my temps stabilize during completion of my tank top-off.... after some tweaking. Before I would shut it off when it got past 60. I can get it lower, but see no need.