LOWER AH DRUM C/W DIA 70MM & DIA 76MM RIG CHAIN GYPSIES ON EACH END STALL PULL 180TON 1ST SPEED 150TON @ 6M/MIN,2ND 50TON@18M/MIN & 3RD 14TON@40M/MIN BRAKE HOLDING 250TON HYDRAULIC ACTUATED PAWL RATCH 250TON.