NIT No. 14 Item 04

Dismantling of motor from the pump set by opening it coupling nut bolts and foundation nut bolts and disconnection from the existing electrical network from the 3.3 HT panel for takeout the motor from dry sump up to ground level of pump house safer place with the help of EOT crane and heavy labour as required to carried out the complete job.

Transportation charges of motor from site to workshop and work shop to site including loading & unloading.

Dismantling of complete motor by opening the both side bearings covers and taken out the rotor from the stator body of the motor after removing the slip-ring assembly from the rotor shaft after dismantling the carbon brush, carbon brush holder assembly after disconnection of leads from the terminal plate of motor and starter leads with the all required tools and tackles as per site requirement.

Cleaning of rotor winding with CRC & MTO and Cutting the steel bend both side of the rotor winding and remove damaged insulation from the rotor winding and repairs the damaged / defective wedges as per requirement of slots of rotor.

Providing & fixing of new ‘H’ class insulation sheet on the motor winding and binding with the non magnetic steel wire steel bend for binding the rotor winding and soldering the same.

Varnishing the complete motor winging starter after Cleaning the stator slots with CRC & MTO & rotor both, with Dr. Back varnish and baking the same and finally painting the rotor and stator winding with Dr. Beck moisture proof paint.

Repairing and servicing of Slip- ring assembly by making surface/ polishing cut on the slip-ring and replace the faulty insulation sleeves and insulation pipe etc.

Repairing of bearing housing both side of rotor by re-metaling turning and polishing as per outer dia. Of bearings, work includes repairing of rotor shaft by re-metaling turning and polishing as per inner dia. Of bearings with the help of required tools and tackles & lath machine etc.

Providing of bearings DE – NU224 EM1, NDE- NU219 EM1 MAKE :- FAG/ SKF

Assembling the complete motor by fixing both side covers of bearings housing and bearings, slip-ring assembly and making the connection of the stator connection leads and rotor connection leads on the connection terminal plate of the motor.

Complete motor fixing on the foundation with the existing pumping set and making alignment with the existing pump set and making connection from the existing electrical network from the 3.3 HT panel of the pump house.

Testing and commissioning of complete motor on no load and full load at site.

Ryan Enterprises