Repairing and rewinding of 20 H.P. Submersible Motor - Pump set (10 nos.)of different make under Kalna-II (A-I) Sub-Division

Dismantling of different H.P., 2800/ 2900 / 3000 RPM. submersible motors, removing old burntout at coil from slots carefully, segregation all the parts, washing and cleaning the same thoroughly for verification of serviceable and unserviceable parts as per direction of the Engineer-in-Charge.ii) For 20 H.P. Submersible Motor,

Rewinding of different H.P 3 phase 410-440 volts ,50 Hz ,2 / 4 poles submersible motor of different make with PVC insulated copper winding wire (1mm to 2mm nom. dia.) as per IS 8783, 1995, part 4 Sec 1 (FINOLEX/ INCABE make to be approved before use) as provided by the motor manufacturer including supplying fitting and fixing fire proof fibre chips on slots for keeping winding wires in position, taped by using water proof tape of 660 volts grade with main cable and fitted with water tight compound by using steel grip tape and vulcanised rubber tape by heating, changing thrust plate, ball retainer and ball including supplying fitting, fixing rings circlips for thrust plate, water seal ring, diaphragm, bush bearing etc. complete as per direction of E.I.C(b) For 20 HP 3 Phase 410-440 votls, 50 Hz. 2 pole , 26 amps - 30 amps submersible Motor(i) Supply of PVC insulated copper winding wire conforming IS 8783, 1995, part 4/ Sec 1 . Length of copper winding wire - max. 450 mts.a) 1.6 mm nom. Dia for 20 H.P, 10nos.@400m=10x400=4000

(ii) Labour charge for rewinding, water proofing ,fitting and fixing fire proof fibre chips on slots for keeping winding wires in position, taped by using water proof tape of 660 volts grade with main cable and fitted with tight compound by using steel grip tape and vulcanised rubber tape by heating as per direction of E.I.C.

Repairing of damaged motor shaft by metaling with electric welding and turning properly to house in the bearing space and coupling side teeth and also rectifying the dynamic balance of the rotor to its original alignment to avoid any vibration all complete as per direction of E.I.C.

Supplying, fitting and fixing winding protector on both sides (Top and Bottom).

Supplying, fitting and fixing bearing Bush for motor in place of damaged as per approval and direction of the E.I.C.i) Top for Motor.

Supplying, fitting and fixing bearing Bush for motor in place of damaged as per approval and direction of the E.I.C.ii) Bottom for Motor.

Supplying, fitting and fixing drain plug made from brass metal with gasket and washer (one for drain plug, one for water filling plug and one for venting plug)

Supplying, fitting and fixing stud bolt with nuts for top and bottom cover.

Supplying, fitting and fixing thrust bearing retainer as per sample.

Jointing waterproof cable with the leads of the motor including soldering with requisite water proof insulation and proper jointing compound / vulcanised rubber tape so that proper waterproof insulation is assured.

Supplying, fitting and fixing S.S. Slip of rotor shaft including removing out of the old one as per direction of the E.I.C.

Supplying fitting and fixing axial thrust plate of motor shaft including supplying of key etc. all complete as per direction of Engineer-in-charge. i) 12.5 H. P. to 20 H. P.

Supplying, fitting and fixing fero asbestos lining on the thrust plate as per direction of the E.I.C.

Supplying, fitting and fixing pivot segment steel balls on the thrust bearing housing as per direction of the E.I.C. (6 nos. in one set with rubber guarder / Circlip etc.).ii) 17.5 H.P. to 20 H.P.

Supplying, fitting and fixing the self aligning thrust plate of the motor shaft including supplying of key etc. all complete as per direction of the E.I.C.

Supplying, fitting and fixing of (thrust bearing segment) pivot segment (set of 6) made from phosphorus bronze as per sample and as per direction of the Engineer-in-Charge.ii) 17.5 H.P. and above

Re-assembling the submersible motor after completion of rewinding and repainting the allied work with the repaired spares parts or new spares when necessary (to be supplied departmentally on requisition) including checking of all accessories and supplying necessary screws nuts and fitting fixing the whole thing properly as per direction of the E.I.C.

Labour charge for checking up the dynamic balance of the motor shaft for original alignment as per direction of the E.I.C.

Carriage of motor from store to workshop and back to store after repair.

Painting two coats of both inner & outer portion with best quality synthetic enamel paint in approved brand including smoothening surface by sand papering for removing old paint as per direction of Engineer-in-Charge.For Motor

Dismantling Submersible pump / Bowl assembly suitable for a capacity of 30 / 150 / 200 Cum per hour capacity against a total head of 15 mtrs to 30 mtrs of different make and segregating all spares fitted with the pump including washing and cleaning the same thoroughly for verification of servicable and unservicable spares as per direction of the Engineer-in-Charge.

Repairing of stage bowl and other spares when necessary by welding, turning and rethreading including supplying and fitting, fixing new studs nuts, washers, impeller key, coupling key with lock nut complete as per direction of Engineer-in-Charge. For 12HP motor & above.

Repairing impeller by metallic gas/electric welding with gunmetal stick & turning, fitting, fixing in proper position as per direction of Engineer-in-Charge.For 12HP motor & above.

Supplying, fitting and fixing stainless shaft as per sample and approval of the Engineer-in-Charge.

Supplying, fitting and fixing G.M. sleeve to be fitted in the bowl bush / body bush suitable for specified R.P.M.

Supplying, fitting and fixing the the body (BOWL) Bush (suitable for specified R.P.M. of pump motor set) as per direction of the Engineer-in-Charge.

Supplying, fitting and fixing stainless steel pump coupling as per sample.

Supplying, fitting and fixing steel sleeves with 2 nos. S.S. nuts as per site and sample.

Supplying, fitting and fixing ceramic filter with circlip and rubber guarder. (Original of a particular make of pump)

Supplying, fitting and fixing Impeller seal ring made of phosphorus suitable for rated R.P.M.

Supplying, fitting and fixing sand guard made of Gun Metal as per direction of Engineer-in-Charge.

Labour charge for re-assembling the submersible pump after completion of repairing spare etc. and allied works with repaired spares or new spares when necessary to be supplied departmentally which are not provide in the schedule including screws nuts in lubricating materials etc. as required as per direction of the Engineer-in-Charge.

Charges for repairing continuity test, insulation test by Megger, no load test as per direction of Engineer-in-Charge.

Painting two coats of both inner & outer portion with best quality synthetic enamel paint in approved brand including smoothening surface by sand papering for removing old paint as per direction of Engineer-in-Charge.For Pump N.B.-Deducton towards dismantled burnt enameled copper wire from induction motor on the basis of actual measurement to be retained by the [email protected]/Kg

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