WHILE PRESSING A BEARING INTO THE BOOM ON A CAT 992 LOADER, THE TOOL BROKE. THIS RESULTED IN THE HYDRAULIC HOSES HITTING EE CAUSING LOSS OF BALANCE AND HE FELL ABOUT 9.5 FT. HE HAS A BROKEN WR IST ON THE LEFT ARM AND PULLED MUSCLES IN HIS LEFT SHOULDER. HE ALSO HAS A CUT ON THE FOREHEAD WHICH TOOK SEVERAL STITCHES.