My L105E loader has 3 grease zerks on the left side that I can find. On the right side, I only see 2. In the attached photo of the right side, the fitting near the top-center of the photo, holding the hydraulic lines, is where there is a grease zerk on the left side. Should I try removing that fitting w/ an alan wrench, to see if there is a zerk behind? (I don't dare remove it without someone telling me it will not be a problem.)