TRANSMISSION WAS BEING REPLACED IN MACHINE USINGA COMALONG TO HOIST IN PLACE. TRANSMISSION BECAME LODGED ON A BOLT & SLACK GOT IN COMALONG CABLEEE WAS POINTING OUT BOLT WHEN THE LOCK ON COME ALONG FAILED, DROPPING TRANSMISSION APPROX.4"". CEE HAND WAS CAUGHT BETWEEN TRANSMISSION & FLOOR CAUSING DEEP LACERATION BETWEEN INDEX & MIDDLE FINGER ON LEFT HAND BREAKING INDEX FINGER.