Repair/replacement of worn out parts of 5 cusec x 10m head pumping unit no.1 along with other allied works at LIS Dai Chak.

Decoupling of 05cusec x 10m head HC pump of unit no.1 at LIS Dai Chak from the motor assembly and dismantling the pump from the base frame. Carriage of the dismantled 05 cusec HC pump set to the nearest roadside, using manual labour, head load through fields to nearest road side, loading in transport vehicle, carriage to the workshop in the mechanical transport for repairs. Repair to 5cusec horizontal casing pump set at workshop by way of dismantling and extraction of damaged internal parts. Providing/fitting of pump shaft by way of turning, rethreading & finishing to accurate size as per specifications of old broken pump shaft. Making of new slots for feather keys. Repair to the impeller by way of welding/brazing, machining, making key ways slots on the impeller and fitting of the same on the pump shaft. Providing and fitting of 2no.s new bearings on driving and non driving end of the pump as per sample, 1no. neck ring, shaft protection sleeves, new gland studs and applying sufficient amount of grease to avoid excessive wear and tear, gland packing as per requirement. Complete assembling of pump set after carrying out necessary repairs. Shifting back to the LIS Dai Chak and then fitting/reinstallation at the base frame, coupling with the motor by making proper alignment and testing on partial/full load. Job also includes providing and fitting of new coupling nuts/bolts & rubber bushes.

Rebate on Old Parts

Repair/replacement to parts of 50 KVA Voltage Stabilizer of LIS Daichak. Disconnection of voltage stabilizer from the main power and output supply. Carriage/shifting of the voltage stabilizer to workshop for repairs. Dismantling of voltage stabilizer, loosening of the top cover nuts and bolts and then opening the top cover. Draining of all the T-oil from the tank and storing it in barrel. Providing heat treatment to the T-oil to remove any moisture content in it. Lifting of assembly with the chain pulley block for extraction of the coils assembly. Cleaning the tank by using recommended chemicals. Rewinding of 2 no.s main coils of stabilizer and repairs to other one by way of cleaning of coil by using recommended chemicals and then varnishing it. Providing/fitting of 1no. rotor switch assembly in place of damaged one. Job also involves servicing of MCCB by recommended chemicals to make them free from carbon and dampness. Topping up with fresh 50 litres T-oil after refilling of the heat treated T-oil. Re-assembling all the parts of the voltage stabilizer and shifting back to the LIS. Making all the electric connections to the voltage stabilizer. Testing on no load and then on full load. Complete job includes cost of material, labour charges, transportation charges, Crane charges and other material required for the job at the site.

Rebate on Old Parts

M/S RAGHUNATH MECHANICAL AND ELECTRICAL ENGINEERING WORKS (BID ID -2268924)

GS ENGG WORKS (BID ID -2266595)

PERFECT ELECTRICAL WORKS