tender for repairing of sdl 971-departmental estimate for repairing of conveyor assy., roll back cylinder., fabrication of track chain adjusting bolt- 02 nos. and master pin- 05 nos., front idler assembly- 02 nos. and upper deck assy. and lift cylinder rh side of sdl-971 of 4, 5, 6 incline of dhori ( k ) colliery. -1.01 conveyor assy. ( enter zero for this row ) 1.02 providing and fixing sprocket shaft 1.03 providing and fixing bush 1.04 providing and fixing suction strain 1.05 providing and fixing se012 / 006elbow 1.06 providing and fixing se012 / 024elbow 1.07 providing and fixing se012 / 027 elbow 1.08 roll back cylinder ( enter zero for this row ) 1.09 damaged tube final weldment metal filling by special welding method as per required up to roundness and after welding re shaping by machining as per piston size. 1.1 seal kit new fitting with material. 1.11 oval eye reconditioning by material depositing by special electrodes in round and grinding as per original shape and size both end – 1.12 new pin making as per sample – 1.13 new spherical bushing making as per reqd. shape and size. 1.14 spherical bushing fitting in eye of cylinder with both end snap ring fitting 1.15 roll back cylinder dismantling. repairing and assembling. 1.16 fabrication of track chain adjusting bolt- 02 nos. ( enter zero for this row ) 1.17 track chain adjusting bolt new making with head and adjustment nut size 60mm head x 430mm length x 45mm od x 300mm long thread. 1.18 track chain joint bolt new making as per size 45mm x 240mm- 1.19 front idler assembly- 02 nos. ( enter zero for this row ) 1.2 track chain idler assy. dismantling, full overhauling and repairing and assembling. 1.21 repairing of worn out portion of idler bracket seat collar by welding and machining as per original dimension for proper assembly 1.22 repairing of worn out bearing seat and color of idler shaft by welding and machining. 1.23 damaged and worn out bearing cover seat repairing by welding metal filling, and machining as per bearing seat and dust seal 1.24 broken and seized bolt removing by drilling from idler collar- 1.25 new thread making in idler collar- 1.26 providing and fixing of h.t bolts 12mmx30mm- 1.27 providing and fitting of bearing 4t- 623 / 612 - 1.28 providing and fixing idler seal kit 1.29 upper deck and lift cylinder lh side ( enter zero for this row ) 1.3 upper deck arm place both side pin seat damaged, oval and worn out portion repairing and rectification with the help metal filling by special welding electrodes as required up to roundness and after welding re- shaping by grinding / machining as per pin size both side 1.31 lift cylinder place both side pin seat damaged, oval & worn out portion repairing & rectification with the help of metal filling by special welding electrodes as required up to roundness & after welding re- shaping by grinding as per pin size & also making required size, distance ring 02 nos. & welding with both side of lifting cylinder pin place with centre & alignment and also making locking arrangement of pin both side. 1.32 lift cylinder worn out pin welding by special electrodes then machining as per original shape – 1.33 en- 9 steel bush new making as per sample size – 1.34 lift cylinder opening and fitting in mounting and upper deck arm assy.