Karnataka Urban Water Supply And Drainage Board Tender

Part-B Monthly maintenance IPS at Nehru pumping station at Ramanagara (Per Month) 1. Check free movement of the gland of the stuffing box; check gland packing and replace if necessary. 2. Clean and apply oil to the gland bolts. 3. Check condition of bearing and replace if necessary. 4..Blow dust from the motor. 5..Examine grease in grease lubricated bearing 6..Check functioning and connections of ternimation box. 7.Check insulation resistance by meggering. 8.Blow the dust and clean internal components in the panel, breaker and starter, replacement of digital /analog meters if necessary. 8.Check and tighten all connections of cable, wires, jumpers and bus-bars. All carbon deposits shall be cleaned. Checking of fuses and replacement of the same if necessary. 9. Check relay setting. 10.Check gland packing of the valve. It should be ensured that packings inside the stuffing box are in good trim and impregnated with grease. It may be necessary to change the packing as often as necessary to ensure that the leakage is within limit. 11. Check oil level in transformer tank and top up if required. 12.Check relay contacts, cable termination, connections in marshalling box etc. 13. Check operation of GOS and DO fuse assembly. 14. Clean radiators free from dust and scales. 15. Pour 3-4 buckets (6 to 8 buckets in summer) of water in earth pit. The frequency of watering shall be increased to once in a week in summer season. The water for earthing shall preferably contain small amount of salt in solution. 16.Inspect lightning arrestor and HT/LT bushing for cracks and dirt.

"-do- Ijoor pumping station at Ramanagara (Per Month)

"-do- Gousinagar pumping station at Ramanagara (Per Month)

"-do- Doddi pumping station at Ramanagara (Per Month)

"-do- Behind KSRTC at Ramanagara (Per Month)

Quarterly maintenance IPS at Nehru park pumping station at Ramanagara (Per Quarter) The work involves alignment of the pump and motor, checking of free movement of the gland of stuffing box, inspection of the packing and repacking, if necessary. The condition of the grease should be checked and replaced/replenished to the correct quantity. An anti-friction bearing should have its housing so packed with grease that the void space in the bearing housing should be between one third to half. Tighten the foundation bolts and holding down bolts of pump and motor mounting on base plate or frame. Check vibration level with instruments if available; otherwise by observation Clean flow indicator, other instruments and appurtenances in the pump house. Wipe brush holders and check contact faces of brushes of slip-ring motors. If contact face is not smooth or is irregular, file it for proper and full contact over slip rings. Check insulation resistance of the motor. Check tightness of cable gland, lug and connecting bolts. Blow the dust and clean internal components in the panel, breaker and starter. Check and tighten all connections of cable, wires, jumpers and bus-bars. All carbon deposits shall be cleaned. Check all connections as per circuit diagram. Check fixed and moving contacts and clean with smooth polish paper, if necessary. Check control circuits including connections in marshalling boxes, LV/HV cable boxes of breakers and transformer. Check oil level in transformer and top up with tested oil. Check dielectric strength of transformer oil and change or filter if necessary Check insulation resistance of all equipments in sub-station, continuity of earthings and earth leads. Removing of weeds and cleaning of substation ward. Checking of all the bolt/nuts, gasket , packing, operation of handwheel/gear box in all types of valves and replacing in necessary.

"-do- Ijoor pumping station at Ramanagara (Per Quarter)

"-do- Gousinagar pumping station at Ramanagara (Per Quarter)

"-do- Doddi pumping station at Ramanagara (Per Quarter)

"-do- Behind KSRTC at Ramanagara (Per Quarter)