Part Mcculloch 219848-01 Tools For Mcculloch MT270 Strimmer?

Tools for Mcculloch MT270 strimmer? - part mcculloch 219848-01

What kind of screwdriver (s) are needed to open the drive? A screw seems to have a triangular head and the others are under McCulloch, 10.24 x 625 (No. 111054)