Attending day to day faults, repair and maintenance of different capacity DG set for various Telephone Exchanges and BTS sites under Koraput BA for the year 2025-26-2nd call.

Attending to break down call, physical inspection of DG set with its accessories at site, checking of lube oil level, Radiator, coolant, Fans & fan belts, Fuel tank, fuel lines, status of starting batteries, Battery charger, self starter, exhaust pipes, AMF/conventional DG control panel, Alternator terminals, Alternator AVR etc., fault finding, rectification of minor faults to make the DG set operational, trial run, load testing, checking of Engine & Alternator parameters etc as required.(Supply of materials are not in the scope of this item).

For sites distance up to and including 50 KMs

For sites distance above 50 KM and up to and including 100 KMs

For sites distance above 100 KM and up to and including 150 KMs

For sites distance above 150 KM and up to and including 200 KMs

Servicing of different capacity & make DG sets i/c drain out of old deteriorated lube oil from lube oil sump, supply & pouring of suitable grade lube oil, Replacement of oil & fuel filters elements by new ones, dismantling, cleaning & re-fixing of air filters, cleaning of DG set with all accessories inside canopy, trial run of DG set, load testing etc as required.

15 KVA/20 KVA Air / Water cooled DG set

25 KVA/30 KVA Air / Water cooled DG sets

40 KVA/63 KVA Air / Water cooled DG sets

Replacement of faulty/defective spare parts / components/accessories of 15 to 30 KVA Capacity DG sets i/c dismantling/disconnecting the faulty /defective ones, fixing and connection of new ones, functional testing etc. complete as required.

Steel wire Braided fuel pipes (Supply/return from fuel tank to DG) (Approx-1700mm)

Radiator hoses and clamps(for water cooled DG sets).

V- Belts (For Dynamo). Make: Mico/Fenner/SS

V- Belts (For Radiator). Make: Mico/Fenner/SS

Steel wire braided lube oil pressure pipe.

Banjo bolts with washer.

Steel wire braided fuel short piece pipe with banjo bolts and washers from Feed pump to Fuel Filter

Steel wire braided fuel short piece pipe with banjo bolts and washers from Filter to Fuel pump

Feed Pump assembly

Replacement of faulty/defective spare parts / components/accessories of the 40 to 63 KVA DG sets i/c dismantling/disconnecting the faulty /defective ones, fixing and connection of new ones of following types and ratings, functional testing etc. complete as required.

Steel wire Braided fuel pipes (Supply/ return) (Approx-1700mm)

Radiator hoses and clamps

V- Belts (For Dynamo).Make: Mico/Fenner/SS

V- Belts (For Radiator). Make: Mico/Fenner/SS

Steel wire braided lube oil pressure pipe

Banjo bolts with washer

Steel wire braided fuel short piece pipe with banjo bolts and washers from Feed pump to Fuel Filter

Steel wire braided fuel short piece pipe with banjo bolts and washers from Filter to Fuel pump

Feed Pump assembly

Supply and top up of Lube oil/coolant of suitable grade in the DG sets, distilled water for Battery and diesel for testing of DG set i/c transportation to sites etc. as required.

Engine Lube oil SAE15W/40 grade (K Oil/ Vovoline/ Gulf/BOSCH /Castrol/Servo /As recommended by Manufacturer)

Engine Radiator Coolant (Volvoline / Fleetguard / Fluid power/ Zerex/ CAT/SS)

Diesel for Testing.

Distilled water for DG Starting battery.

Replacement of the following faulty/burnt out spare parts/accessories of the DG sets by new ones i/c making connection/fitting, testing on load etc. as required.

SMPS type Battery Charger, 10 Amps,170 to 270 Volts AC input & 12 volts DC O/P, Panel mounting type with boost & trickle charging facility, reverse polarity indicator for charging of DG set starting battery i/c input cord & out put wire with clamp etc. as required. (Make: NHP/Rishabh / Nuteck/Subtech/VCS/As recommended by Manufacturer/OEM)

Automatic Electronic voltage Regulator for 15 to 63 KVA brushless type 3 phase, 415 volts Alternator (for excitation circuit) (Make: Crompton Greaves /Kirloskar /Cummins /Stamford/Leroy somer/ As recommended by manufacturer)

Dial type Hour cum RPM meter (Mechanical type) (Make: Pricol/Veethree/Minimeter/As recommended by manufacturer)

Dial /Digital hour meter (Electronic & panel mounted type) (Yokins/SS make)

Techno meter cable (2m) for Mechanical type RPM cum Hour meter (As recommended by manufacturer)

Stop solenoid assembly (Stainless steel) suitable for operation on 12 volts DC (For 15-30 KVA DG set) (Make: Cummins/Autolek/SS)

Stop solenoid assembly (Stainless steel) suitable for operation on 12 volts DC (For 40-63 KVA DG set) (Make: Cummins/Autolek/SS)suitable for operation on 12 volts DC (For 40-63 KVA DG set)

Engine Ignition Starting Key

Replacement of the faulty MCCBs, Contactors, relays etc. by new ones of the following ratings etc. as required.

63Amps, 415 volts , 50 Hz 4 pole MCCB (Not less than 25 KA)

40Amps, 415 volts , 50 Hz, 4 pole contactor with auxiliary contact block of 2NO+2 NC (AC3 duty)

Contactor Coil for 40Amp power Contactors suitable for 415v, 50Hz AC supply.

Repairing of Self starter (12 volts ) for 15 to 63 KVA DG sets i/c dismantling from DG set, transportation to workshop and back, replacement of solenoid coil, carbon brushes, springs, washers, bearings, refitting with DG set, testing etc. complete as required.

Extra for rewinding of self starter (12 volts) coil for 15 to 63 KVA DG set by superior quality and size enamel copper wire, heat varnishing etc. complete as required.

Repairing of Battery charging Dynamo (12 volts) for 15 to 63 KVA DG set i/c dismantling from DG set, transportation to workshop and back, replacement of carbon brushes, springs, washers, bearings, refitting with DG set, testing etc. complete as required.

Extra for rewinding of Battery charging Dynamo (12 volts) coil for 15 to 63 KVA DG set by superior quality and size enamel copper wire, heat varnishing etc. complete as required.

Making arrangements for starting Battery on hiring basis for testing of the DG set at TE/BTS sites located outside the BA/SSA headquarter i/c transportation from shop to site and back etc. as required.

Supply and fixing of the following accessories for starting battery i/c connection etc. as reqd.

Battery charging Leads made of PVC insulated stranded copper conductor cable with clamps (not less than 35sqmm )( 02nos for +ve & -ve)

Brass Battery clamps with nuts and bolts(Set comprising 02 nos)

Servicing & Repairing of the fuel pump, injector & nozzles i/c dismantling, decarburizing, replacement of minor worn out spare like gasket, "o"ring etc., complete as required.

Extra for calibration of above mentioned fuel pump in authorized workshop i/c transportation from site to workshop and back etc. as required.

For 02/03 Cylinder Engine

For 04 Cylinder Engine

Repairing and Cleaning of Engine Radiator after dismantling, drainage of water & coolant, leak testing, rectification of leaks, brazing/repairing of tank by gas welding i/c transportation from site to workshop & back etc as required.

Cleaning of Engine Diesel tank after drainage of Diesel, leak testing etc. complete as required.

Dismantling the defective Alternator from the base frame and from the Engine for rewinding with proper tools and tackles etc. complete as reqd.

Rewinding of following windings of the alternator for 15 KVA DG set with super enameled copper conductor of existing size (gauge) & turn I/c insulating, heat varnishing, polishing etc complete as required.

Stator winding

Rotor winding

Stator exciter winding

Rotor Exciter winding

Rewinding of following windings of the alternator for 30 KVA DG set with super enameled copper conductor of existing size (gauge) & turn I/c insulating, heat varnishing, polishing etc complete as required.

Stator winding

Rotor winding

Stator exciter winding

Rotor Exciter winding

Re-installation and re-assembling of the repaired 15/30 KVA Alternator at site, making alignment, testing, commissioning at load etc. as reqd.

Replacement of Power Thyristors of the rotating rectifier unit for 15-30 KVA 3 phase 415 volts 50 Hz brushless type Alternator by new one of original make i/c connection, testing etc. as required.

Replacement of rotating rectifier units of 15-30 KVA 3 phase 415 volts 50 Hz brushless type Alternator by new one of original make i/c connection, testing etc. as required.

Transportation of faulty/burnt alternator from Site to Work shop and back i/c loading & unloading etc as reqd.

Distance up to and including 50 KMs (Rates for both Up and Down)

Distance above 50 KM and up to and including 100 KMs (Rates for both Up and Down)

Distance above 100 KM and up to and including 150 KMs (Rates for both Up and Down)

Distance above 150 KM and up to and including 200 KMs (Rates for both Up and Down)

Making arrangements for fixing the Digital Hour meter in 3"x3" PVC box i/c connecting the hour meter into 1sq mm Cu cord of suitable length for connecting to the DG supply end from the Alternator etc. as required.

Making arrangements for fixing the 10Amp DG battery charger by providing 1sq mm Cu cord of suitable length for input supply, 2.5 sq mm Cu Cond. For DC out put supply with crocodile clamp for connecting the same in manual/AMF Control panel dg battery etc. as required.

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