repair and maintenance of sdl 969 at dhori khas colliery- 1 repairing of limit switch assembly twin entry ( enter zero for this row ) 2 limit switch ( c. c. w ) 3 terminal box, twin entry m / c. 4 enclosure f. s machining 5 cable gland s. c. , f. c. s- 25- plc2 6 02 pin moulded terminal 7 stud 8 fabrication of track chain adjusting bolt- 02 nos. ( enter zero for this row ) 9 track chain adjusting bolt new making with head and adjustment nut size 60mm head x 430mm length x 45mm od x 300mm long thread. 10 repairing / rectification works of bucket arm lever and main chassis arm assy. ( enter zero for this row ) 11 bucket arm lever assy. bend and damaged bracket gas cutting, heating, straightening with the help of hydraulic press machine and re-welding with asy. in multilayer by special jointing steel electrodes and shaping by grinding with proper alignment and lin ing. 12 en-18 carbon steel metal pin new making with head and lock hole for above bucket arm lever. 13 chassis frame arm assy. bend and damaged portion straightening by hydraulic press machine and also brackets cutting and after straightening re-setting “v grooving and full welding in multi layer by special jointing electrodes with support stitching and shaping by grinding with proper alignment and label lining. 14 en- 18 carbon steel metal pin new making with head and lock hole for above chassis. 15 total impact of gst for the purpose of ctc