Not much experience on mct bu mc135 had small access plate immediately behind L/R wheel. I would think track machine to be the same. You may have to clean between track and frame to see it. Another thing to be mindful of, the oil cooler is sandwiched between filter and filter head, this will sometimes try to come with the filter. There is no room in there, that is for sure. Last thing, compare the cap of the drain valve to the hose supplied. Volvo had been delivering machines with drain hose for Volvo vs JCB. JCB is smaller with different style valve depressor.
Good luck.