There are drain holes, 2 in front and 2 in back, that are on either side of the actual chain case to let fluids and debris come out From around the hydraulic components. There is also an access panel that is just behind and in between the 2 drain holes in the back.I have a S250 bobcat skid steer and it started leaking from the bottom right area under the body. Is there some type of plug that fell out? Assuming it's gear chain oil…