complete repairing of u-1200 radicon gear box at bnr siding rocp / sj.--- 1 dismantling of both coupling drum side 2 dismantling of gear box assembly by manually 3 metal deposited of the drive shaft 4 machining of the shaft as per bearing size. 5 metal deposited of the worm shaft 6 machining of the worm shaft 7 metal development of drive shaft 8 machining of the spline as per size 9 fabrication of flange 2 side 10 metal development of g.m. teeth 11 cheeping grinding and shaping 12 new making of ht key 13 welding, machining of the shaft key way 14 new oil seal changing 63-90-13 15 top and bottombolts changing 16 ri cloth packing and solution etc. 17 gear box foundation bolts 18 fitting and assembling 19 transporting of gear box 20 total impact of gst for the purpose of ctc