maintenance of underground sewerage scheme to margao: repairing, rewinding along with procurement of minor parts of different types of sewage submersible pumps--- 1 repairing of to below mentioned submersible pump by replacing following spares: 2 a ) change of bottom plate c.i. 3 b ) upper oil seal set. 4 c ) lower mechanical seal assembly complete set. 5 d ) cable entry kit. 6 e ) o ring and complete studs and nuts bolts set. 7 f ) power cable 15 mtr.with p.u.c. 8 g ) g.i. top cover. 9 h ) rect. terminal block. 10 i ) upper bearing set. 11 j ) oil 4 ltr. altrc. kit. 12 k ) lower bearing kit. 13 l ) nilon o ring set 14 m ) rotor shaft setting, polishing and chromium plating. 15 n ) electronic seal monitor. 16 o ) rotor shaft assembly balancing 17 p ) impeller balancing 18 q ) pump dismantling, cheking & refitting 19 r ) pump servicing, acid washing, polishing & painting. 20 s ) panel complete new wiring and fitting all accessories. 21 i ) 3 hp sewage submersible pump flow chem. 22 ii ) 5 hp sewage submersible pump lubi make. 23 rewinding and repairing of following the submersible pump by replacing the necessary spares. 24 a ) change of bottom plate c.i. 25 b ) upper oil seal set. 26 c ) lower mechanical seal assembly complete set. 27 d ) o ring and complete studs and nuts bolts set. 28 e ) power cable 15 mtr.with p.u.c.coating 15 mtr. 29 f ) rect. terminal block 30 g ) upper bearing set. 31 h ) oil 4 ltr. altrc. kit. 32 i ) lower bearing kit. 33 j ) nilon o ring set 34 k ) rotor shaft setting, polishing and chromium plating. 35 l ) rotor shaft assembly balancing. 36 m ) impeller balancing 37 n ) pump dismantling, cheking & refitting 38 o ) pump servicing, acid washing, polishing & painting. 39 i ) 3 hp sewage submersible pump flow chem. 40 ii ) 5 hp sewage submersible pump lubi make. 41 iii10 hp sewage submersible pump lubi make. 42 supply of mechanical seal ( liquid tight ) for 10 hp submersible pump make lubi pumps.