EMPLOYEE PUSHED THE UP BOTTOM ON TEH OVERHEAD HOSIT ABOVE 719 ELEVATOR TO RAISE THE BUCKET CHAIN OFF OF THE 3"" SHAFT HOLDING THE BUCKETS FROM FALLING DOWN INTO THE ELEVATOR HOUSING. THE SHAFT SLAMMED FORWARD SMASHING 2ND,3RD AND 4TH FINGERS AGAINST THE HOIST CONTROL BOX WHICH WAS UP AGAINST THE BEARING BASE.