tender for different maintenance jobs of mechanical nature to be carried out at jambad colliery- 2 transporting of haulage pinion from 4 no. rise to 12 rise site of the haulage of memco make endless haulage 3 transporting the different pinions from the site of the track line and carrying it manually from there to the haulage set/haulage foundation site 4 fitting the haulage pinions, all the pinions of the haulage along with the available bush, block 5 lifting of the haulage segment that was old and used. lowering them after necessary welding and repairing works, and then fitting of the segments 6 lowering of 200a acb from the surface and then placing it at no. rise haulage, from the surface. then lifting the damaged/worn out acb from the haulage site and then lifting it to the surface 7 work at the pinion of the existing voltas make haulage. changing of bearings, works at the shaft, pulley, belt and the motor tensioning. doing the work in stages 8 lifting of boom of sdl 1865 from the machine to the surface after dismantling of the part 9 lowering of the boom of the sdl after necessary repairing works, taking it to the machine and then fitting it 10 taking of traction chain from the surface to sdl 1865 and then fitting it 11 lifting of damaged traction chain from the machine to the surface, and then lowering it after necessary repairing it on surface and then fitting it in sdl 1899 12 shifting of auxiliary fan along with the associated electrical switchgears and the geb, switches, drill panel in the coal face as per the requirement of face in the east side panel in coming weeks 13 lowering of a repaired geb from the surface and then lifting of worn out geb of sdl 1865 from the face 14 work at the slide valve problem and in the piston cylinder head of winding engine of no. 03 pit. the job includes necessary dismantling, repairing and fitting