KMDA/EM/EE/ MD-III/NIT-22 of 2025-26

Amount

Part-I(Pump unit)

Maintenance and overhauling of V.T./ inclined pumps as per manufacturers instruction manual with all tools, tackles etc. This job includes labour charges, consumables like O- ring, sundry cleaning material etc. This job includes dismantling of all sub assemblies such as gear box, cooling pipes, shafts, column pipes, bowl assembly, bell mouth, strainer, line shaft enclosing tube etc. Reconditioning of all parts, inspection of all parts & replace these parts as per instructions (spares cost excluded) straighthening of shafts & refitting of all parts & sub assemblies with proper alignment including motor removing & refixing, test & trial for 24 hrs etc complete. (Capacity above 5 cusec and upto 25 cusec pump)

Transmission shaft/Head shaft/impeller shaft (Material: ST ASTM 276-316 ANLD)

Bowl bush (Material: GM Grade LTB 2&5 IS-318)

Shaft sleeve/Gland sleeve (Material: ST ASTM 276-316 ANLD)

Muff coupling with keyway (Material: ST ASTM 276-316 ANLD)

Maintenance and overhauling of cooling and lubricating system as per manufacturers instruction manual with all tools, tackles etc. This job includes labour charges, sundry cleaning material etc. This job includes inspection, checking and cleaning of all parts and replacement of damaged parts as per instructions (spares cost excluded) and refitting of all parts& assemblies with proper alignment & test & trial for 24 hrs. etc complete as per direction.

Transportation of vertical turbine pump set and motor along with all other accessories and equipments including bend, sluice valve, bowl assembly, shaft, oil tube, column pipe, discharge head, bearing, coupling etc. including loading the same at lifting point and unloading the same at the delivery point including necessary head load upto 100 meter at both ends and stacking the same within the tubewell premises as per direction all complete. (a) Distance upto 50 km. (Two no pump )

Part -II (Motor Unit)

Taking out the L.T. sq. cage Induction Motor after disconnections of supply terminal connections including earthing terminal connection, from coupling end of 25/50 cusec vertical axial flow propeller pump after dismantling the same from the motor stool. The motor is to be kept on wooden sleeper at a suitable distance from the floor without damaging the earthing strips and cables etc. as per direction of E.I.C

Preliminary checking of the whole motor (L.T. sq. cage IM) and testing of I.R. value, load currents, leakage factor of stator & rotor, terminal lead joints of stator connection ends, insulation pf glass fibre terminal bar, double cage rotor end rings and all of motor bars and bar joints, housing of D.E & NDE shield bearing housing etc. before work to detect fault.

Dismantling of motor coupling, removing of rotor and shaft from motor in workshop part by part . as required as per direction of the EIC.

Dismantling of motor burn coil part by part including the extraction of burnt coil, removal of burnt insulation and cleaning of core as per direction of the EIC..

Supply & delivery of super enamelled Copper wire (3.2 kg X 18 nos. batch) as required as per direction of the EIC.

Insulation of 1.1. kV grade motor upto 72 slot part by part properly insulating the core with Mica paper and nomex paper for maintaining class F insulation as required as per direction of EIC.

fitting fixing of new insulated motor batch coil in proper position apply insulation of individual coil and separate circuit as required as per direction of EIC.

Supply & fixing of drive end and non drive end bearing (NU321 and 6321) as per technical specification and direction of EIC.

Supply of Lithium grease

Supply of space heater

Complete servicing and heat varnishing of 415Volt, 3 Phase L.T. sq. cage induction motor after cleaning the stator and heating it up periodically and varnishing by Dr. Beck’s graded insulating varnish to obtain stable IR value, cleaning up the rotor, including heating for demoisturisation, lacker coating on the surface of rotor stampings, cleaning and RO priming on the end shield covers, bearing housing and complete the necessary repairing works as per direction of E.I.C

Replacing and jointing of new 1.1KV grade 70 sq.mm. fibre glass copper wire terminals leads by 100% solder (Eyre) compounded with Eyre-7 paste, (6 leads).

Finishing the end of terminal leads by S & F dowells copper sockets properly supplying tapes, petrollium jelly etc. 6 nos.

Cost of mechanical work viz. shaft truness, checking key way looping of holes grinding and polishing etc.

TO and FRO charges of motor from pumping station to work shop as per direction of EIC.

Supply of coupling pin with rubber bush as required as per direction of EIC.

Refitting the pump motor (LT sq. cage IM) set with all its necessary coupling and accessories to its original position including fitting fixing with bearing housing non-reversable rachet unit and pump shaft with proper tollerance and clearance and reconnection of terminal points the overhauling work i.e. cleaning of contracts sliping etc. (all connection strips, cable end are to be refifled in proper way including good damages of strip terminals) and satisfactory 2 hours trial run of the pump as per direction of E.I.C. for all pumping stations.

DEY ELECCTRIC (BID ID -7265782)

ROYAL (BID ID -7124475)