Oil And Natural Gas Corporation Limited Tender

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Oil And Natural Gas Corporation Limited - ONGC Tender

Works
Electrical and Electronics
Eprocure
Opening Date18 Dec 2024
Closing Date8 Jan 2025
Tender AmountRefer Documents 
Notes
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Costs

Summary

Service Rate Contract For Repair And Overhaul Of Major Electrical Machines

Description

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BOQ Items

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Rewinding of Main pole per pole of BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm

8

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Rewinding of Interpole per pole using a new winding strip / conductors and fresh insulation tape / material of BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm

4

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Re-insulation of Main pole per pole of BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm

8

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Re-insulation of inter pole per pole of BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm

8

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Commutator Polishing, Grinding, Shining and Mica under cutting etc. of BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm

8

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Complete replacement of commutator of BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm

3

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replacement of Carbon brush for BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm of grade EG-14D - Assam Carbon make / ELCA carbon make of suitable grade

48

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replacement of Carbon brush holder for BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm

48

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Supply & fitment of Bearings for BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm, DE side bearing No: NU330 EM1.C3

6

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Supply & fitment of Bearings for BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm, NDE side bearing No: NJ320 EM1.C3

6

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Providing of terminal block for BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm

6

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Providing of connector set for BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm

6

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Supply & fitment of Space heater for BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm,Space heater rating 230 V AC , 250 W

8

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Fabrication & fitment of bearing covers for BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm, for DE side ( for bearing NU330 )

6

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Fabrication & fitment of bearing covers for BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm, for NDE side ( for bearing NJ320)

6

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Fabrication & fitment of bearing collars for BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm, for DE side ( for bearing NU330 )

3

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Fabrication & fitment of bearing collars for BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm, for NDE side ( for bearing NJ320 )

3

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Rotor shaft reconditioning for BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm.

1

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Providing new coupling hub for BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm.

5

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Dynamic Balancing of rotor for BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm.

2

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Man day rates for 8 hours duty at site

12

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Reconditioning of DE side bearing housing of BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm.

4

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Reconditioning of NDE side bearing housing of BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm.

4

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Providing of terminal box for BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm.

1

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Reconditioning of coupling hub of BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm.

1

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Replacement of rotor shaft of BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm.

1

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making new lead (inter pole cable of 300 sq. mm) to BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm, by taking suitable length of cable making of coil lugs, from pure copper plate, pressing/crimping to lead, brazing of lugs to leads with L&T make 1805 Silver Brazing Electrodes, drilling suitable hole to lugs, re-insulating of leads with poly glass mica (PGMP) 2 layers, Terlin insulation 1 layer. cost including material and labour.(per lead)

3

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Replacement of Main Pole Connection leads with lugs for BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm. (per lead)

3

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Replacement of Main Pole Connections (coil to coil jumpers) with lugs for BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm. (per jumper)

3

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Replacement of Inter Pole Connections (coil to coil jumpers) for BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm. (per jumper)

3

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Replacement/Providing of Inspection Cover for BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm. (per cover)

3

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Replacement/Providing of Ventilation Cover for BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm. (per cover)

3

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Replacement/Providing of Air purging Hose Pipe set for BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm.

3

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Replacement of NDE side bearing lock nut with new one made out of EN-24 material by machining and providing threading as per original shape and dimensions for BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm.

1

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Reconditioning of Rotor Shaft at NDE side bearing lock nut seating portion by under cutting the portion, fixing of sleeve made of EN-19 material by machining and shrink fitting to shaft, welding and locking sleeve, then providing of threading and fine finishing of edges and polishing for BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm

1

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Repair of Air Vent Covers by replacement of Mesh.

1

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Providing of holding Handles for Terminal Box top cover by welding. (1 set contains 2 Nos.).

1

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Providing of Coupling Lock plate for BHEL make DC Motor type 4903 BX/CX-LH and GE make DC Motor type 5GE752-RCA/GE752RB2 rating 900 HP/1000/1130 HP & 1050/1040 rpm

1

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2.2 ALTERNATORS

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Overhauling of KATO Make alternator type OA-6301-AY, 1500 RPM, BHEL Make alternator type OA-6301-AZ, 1500 RPM and BHEL Make alternator type OA-7002-AZ, 1000 RPM, 1430 KVA , 3ph, 50 Hz, 600 V

10

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Rewinding of Excitor armature of BHEL make alternator type- OA-7002-AZ 1430 KVA, 3 ph , 50hz, 600 V , 1000 rpm

1

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Rewinding of Excitor field of BHEL make alternator type- OA-7002-AZ 1430KVA, 3 ph , 50hz, 600 V , 1000 rpm

1

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Rewinding of Stator of BHEL make alternator type-OA-7002-AZ, 1430 KVA, 3 ph , 50hz, 600 V , 1000 rpm/ a) Total winding

1

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Rewinding of Rotor of BHEL make alternator type-OA-7002-AZ 1430 KVA, 3 ph , 50hz, 600 V , 1000 rpm a) Per pole

1

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Bearing replacement per bearing (Labour only) of of KATO Make alternator type OA-6301-AY, 1500 RPM, BHEL Make alternator type OA-6301-AZ, 1500 RPM and BHEL Make alternator type OA-7002-AZ, 1000 RPM, 1430 KVA , 3ph, 50 Hz, 600 V

8

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Supply & fitment of Bearing NU326 EM1.C3 for BHEL Make alternator type OA-6301-AZ, 1500 RPM and BHEL Make alternator type OA-7002-AZ, 1000 RPM, 1430 KVA , 3ph, 50 Hz, 600 V (DE side)

2

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Supply & fitment of Bearing 6326 M.C3 for BHEL Make alternator type OA-6301-AZ, 1500 RPM and BHEL Make alternator type OA-7002-AZ, 1000 RPM, 1430 KVA , 3ph, 50 Hz, 600 V (NDE side)

2

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Supply & fixing of space heaters for 1430 KVA BHEL/ KATO Alternator. Space heater rating 230V, 500 watt

3

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Providing of connector set for 1430 KVA BHEL/ KATO Alternator

2

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Replacement of wedges for 1430 KVA KATO/ BHEL Alternator

2

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Shaft metal build up & reconditioning of bearing seating on 1430 KVA BHEL Alternator on DE side ( for bearing NU326 )

1

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Shaft metal build up & reconditioning of bearing seating on 1430 KVA BHEL Alternator on NDE side ( for bearing 6326)

1

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Rotor Re – insulation per pole for 1430 KVA KATO Alternator

4

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Rotor Re – insulation per pole for 1430 KVA BHEL Alternator

12

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Providing of bearing Inner cover on DE side for 1430 KVA KATO Alternator

1

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Providing of bearing Outer cover on DE side for 1430 KVA KATO Alternator

1

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Providing of bearing Outer cover on NDE side for 1430 KVA KATO Alternator

1

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Providing of bearing collor on DE/NDE side for 1430 KVA BHEL Alternator

1

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Providing of bearing Inner cover on DE/NDE side for 1430 KVA BHEL Alternator

1

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Providing of bearing Outer cover on DE/NDE side for 1430 KVA BHEL Alternator

1

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Dynamic balancing of rotor of 1430 KVA Alternator of KATO/BHEL make

1

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Reconditioning of DE/NDE side bearing housing of 1430 KVA KATO/BHEL make Alternator

1

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Replacement of rotor shaft of 1430 KVA KATO/BHEL make Alternator

1

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Replacement of NDE bearing housing frame of 1430 KVA KATO/ BHEL make Alternator

1

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providing of main field connection fibre ring of 1430 KVA KATO/BHEL make Alternator

1

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Stator core complete restacking of 1430 KVA KATO/BHEL make Alternator

1

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Replacement of main field coil Clamps (main rotor) of 1430 KVA KATO/BHEL make Alternator

1

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Replacement/Providing of Coupling Hub for 1430 KVA Alternator of KATO make

1

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Replacement/Providing of Coupling Hub for 1430 KVA Alternator of BHEL make

1

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Providing of holding Handles for Terminal Box top cover by welding. (1 set contains 2 Nos.).

1

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Replacement of Hylum Clamp sets for Terminal Block. (1 set contains 3 Nos.)

1

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Replacement of fan lock Check Nut.

1

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Providing of rotating rectifier unit locking Plate.

1

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Providing of Diode. (150 LMR 80 A)

12

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Repair of exciter assembly Doom by welding and reconditioning of doom and providing new mesh.

2

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Repair of DE side end cover Mesh.

1

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Replacement of DE side end cover Mesh.

1

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Replacement of exciter assembly Doom with new one.

1

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2.3 EDDY CURRENT BRAKE

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Overhauling (includes removal and fitment of coupling hub) of Model 6032 ECB

2

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Skinning / turning of drum of Model 6032 ECB

2

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Bearing replacement per bearing (Labour only) of 6032/ 7040 model ECB

6

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Removal and fitment of coupling hub (Labour only) of 6032/ 7040 model ECB

3

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Metal buildup per mm thickness of model 6032 (Length will be as per the model)

2

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REWINDING OF ECB Magnet Assembly 6032 model:Magnet assembly has two coils. • Removing of winding by mounting of Magnet Assembly on Vertical lathe, under cutting the circumference of the Magnet Assembly. • Making of suitable angular support (zig) to remove coils without damaging/bending of core. • Procuring new copper conductor made out of 99.9% pure electrolytic copper, insulated with enamel, mica & double layer of Fiber glass. • Making of suitable former and wounding of coil with actual shape and dimensions and binding the same with Poly glass mica insulation tapes, preheating, varnishing etc. • Insulating the inside core with a layer of liquid insulations, then Providing of Packing and inserting the coils. • Welding and closing the coils, then again mounting on lathe to undercut any excess portions, checking trueness etc. • Conducting necessary tests like leakage, IR & resistance.

1

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Replacement of DE side Oil seal of 6032, DE & NDE side Oil seal of 7040 model ECB as per original dimensions by making suitable die including cost of die, material and labour.

1

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Replacement of NDE side Oil seal of 6032 model ECB as per original dimensions by making suitable die including cost of die, material and labour.

1

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Reconditioning of DE side Bearing Housing of 6032/ 7040 model ECB by cleaning and removing of housing from brake coil by mounting hydraulic jack and re-fixing after reconditioning.

1

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Reconditioning of NDE side Bearing Housing of 6032/ 7040 model ECB by cleaning and removing of housing from brake coil by mounting hydraulic jack and re-fixing after reconditioning..

1

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Reconditioning of Rotor Shaft at DE side of 6032/ 7040 model ECB bearing seating portion.

1

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Reconditioning of Rotor Shaft at NDE side of 6032/ 7040 model ECB bearing seating portion.

1

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Replacement of Terminal Block of 6032/ 7040 model ECB

1

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