1.charging of n2 gas in rear and front suspension d/60881, d/61064 & d/61066. 2.fabrication of frame both side, window & front glass fitting in dumper/60881, 0/61064, d/61066. 3.broken and cracked chassis resetting by hydraulic jack pressure and fixture by v groove cutting by both side 02 nos, plate reinforcement, operator cabin foundation welding and track frame straightening by hydraulic jack of drill idm-839, 4.repairing of diagonal frame cap both side and its bushing dozer t- 13610. 5.operator cabin gate glass, front glass, rear glass, both gate safety glass, both window glass no, with rubber bit changing and one gate lock in doter t 13722. 6.fabrication of frame & operator cabin gate glass, front glass, rear glass, both gate safety glass, both window glass with rubber bit changing and 01.nos gate lock in dozer t 13275