complete servicing/repairing to pumping set centrifugal electric driven 2 hp , complete servicing/repairing to pumping set centrifugal electric driven 2hp , complete servicing and repairing of pumping set centrifugal electric driven 600 ghp a7-150 2hp , complete servicing , repairing and rewinding of pumping set centrifugal electric driven 600 ghp a7-150 2hp , ac and replacement of unserviceable components including testing & commissioning complete all as specified , repairing , servicing and rewinding of pumping set 5 hp , 3 phase , ac and replacement of unserviceable components including testing & commissioning complete all as specified , repairing , servicing and rewinding of pumping set 20 hp , 3 phase , ac and replacement of unserviceable components including testing & commissioning complete all as specified . , complete servicing and repairing of pinjor rock drill including replacement of unserviceable components . , complete servicing and repairing of foam generator including replacement of unserviceable components and spares as mentioned below and testing the eqpt as directed by engr-in-charge:- ( i ) e/oil filter-12 nos . ( ii ) engine oil change . ( iii ) injector -12 nos . ( iv ) flexible fuel lines-12 nos . ( v ) oil pressure gauge with pressure line . ( vi ) replacement of fan belt-12nos . ( vii ) replacement of air pressure guage-12 nos . ( viii ) servicing to air compressor with replacement of piston rings