assistance for breakdown maintenance / skilled jobs in sa plant , fact-cd . , assistance for breakdown maintenance / skilled jobs in sa plant , fact-cd . , supply of skilled and qualified fitters for the maintenance jobs in sa plant . work involves: service of iti qualified and skilled fitters shall be provided to do the maintenance / repair / overhauling jobs at sa plant , as per the instruction of officer in - charge . assistance for attending break down / general maintenance/preventive maintenance works like replacement / repair / assembling of pumps , gearboxes , valves , conveyors , suphur filters , agitators , fans , etc . , supply of skilled and qualified welders for the maintenance jobs in sa plant . work involves: service of iti qualified and skilled welders shall be provided to do the following maintenance / repair jobs at sa plant as per the instruction of officer in - charge . assistance for attending break down / general maintenance / preventive maintenance works like replacement / repair / assembling of pumps , gearboxes , valves , conveyors , sulphur filters , agitators , fans , etc . fabrication / repair of pipe lines , vessels , tanks , machine parts and structural cutting / welding work . assistance for alignment work of all equipments and replacement of couplings / bolts of pumps , agitators , fans , conveyors etc . with required tools .