Mechanical repair works to 20 cusec VT pump (Unit 2nd) at LI/DWS Rabitar of MISD Ganderbal

Mechanical transportation, loading, unloading and handling of Pump etc. using appropriate means of transport as under : Tata Mobile (lead distance=23 km one side)

Partial dismantling of VT pump by way of: Disconnecting all leads from the motor and marking the terminals, uncoupling of motor from the pump, dismounting of motor with stool. Disassembling, dismantling and segregation of various pump parts including discharge and column pipe, head and lines shafts and couplings but excluding bowl assembly: 450mm ND

Repairs of non-reverse ratchet seal plate by way of rebuilding each broken off circular edge portion (<30% perimeter) of outer side or central hub and keyway using good quality CI welding electrodes. The plate should be pre-heated to around 200 deg. C before carrying out the welding job. Turning, slotting and machining of work piece to restore original dimensions.

Providing of steel ratchet roll/pin as per (IS: 7283 or AISI 410)

Rebuilding and repairs to the double-bearing seat by way of cutting/welding for the proper fitment of the bearing.

Supply of new bearing as under: (Make : SKF imported / equivalent imported) Bearing No. 7214 for DE side

Replacement of Driving End(DE) double bearing of vertical pump by way of: Isolating od DE bearings, carefully extracting the old damaged bearing from the housing with the help of bearing puller, etc and fitting of new bearing in its place. Refitting back of pump parts, coupling and alignment with the pump. The job includes loading testing of pump.

Providing and fitting of carbon steel Fasteners of assorted size.

Providing of natural rubber gasket for flanged joints with nominal sizes as under: 450mm

Assembling of dismantled VT pump parts (excluding bowl assembly) after cleaning, coupling and alignment with motor, connecting of motor leads and testing on full load.