hello all .

i would like to have you kind assistance in this problem .
i have 1 MYCOM compressor unit .
and suddenly the oil temperature became too high ( 65C)

i have charged the ammonia properly(more than 50%) in the surge drum but still too high.
the oil cooler is working normally without problem .
i have changed the oil and charged the oil separator with new oil . (mobil Gargoyle Arctic SHC 226 E) and i have changed the oil filters as well with new oil filters .

the compressor model is : 250VLD .

what should i do ??

thank you