REPAIR / MAINTENANCE / SERVICING TO THE AC PLANTS, DG SETS AT INS EKSILA UNDER AGE E/M NO-III OF GE (UTILITY-I) VISAKHAPATNAM

Amount

M&L for rolled mild steel angles, bars, flats etc., as in supports for stiffening of fencing, wall ties, hold fasts, clamps and similar small articles confirming to Fe 410-W (Gde.E-250), quality-A including suitable size anchor fasteners completely grouted in wall at any height for supporting the Air ducts including applying two coats of synthetic enamel paint over a coat of red oxide primer including dismantling complete all as specified and directed. Make of paint :- Jotun India Pvt Ltd / Asian Paints / Berger / Jenson & Nicholson Paints Ltd / Shalimar Paints Ltd

M&L for servicing of UPS of minimum 10 Minute back up, three phase, AC input 360 to 440 V and output 415 +/- 1% of capacity 10 KVA complete including necessary control wiring for stabilized control supply of variable speed screw type liquid chiller of capacity 300 TR complete all as specified and as directed.

M&L for replacement of battery lead set of 02 No's 1.5 Mtr long copper lead of 35 Sqmm size including GM terminals at one end and copper lug at other end complete all as specified and as directed

S & F in repairs 3 pole power contactor of ML-3 with coil operating voltage 230 V/415V AC 50 HZ all as directed. Make:- L&T / Schneider / C&S / GE / Legrand

All as per Sl Item No. 4.00 above but 3 pole power contactor of ML-2

S & F in repairs three phase over load relay 0-70 Amps range complete all as specified and as directed. Make:- L&T / Schneider / C&S / GE / Legrand

All as per Sl Item No. 6.00 above but 0-20 Amp range

M&L for carry out the de-scaling of shells & tubes for 34.5 TR capacity of shell and condensers, water cooled type condenser by disconnecting the inlet and outlet water connections and providing of dummy to the inlet & outlet and de-scaling the condenser by circulating the circulated de-scaling agent by R-111 or equivalent chemical or organic compound at the proper ratio circulated chemical till remove complete scale deposit inside the copper tubes, and opening the both end cover by the condenser brushing the copper tubes with appropriate size nylon brush remove complete scale and flushing out the tubes and degreasing with caustic soda solution and flushing and boxing up the both end covers connecting up the water inlet & outlet connections including renewal by damaged rubber gaskets and leak testing the joints for water leakage all as directed by Engineer-in-Charge.

All as per Item No. 8.00 above but capacity of 180 TR

All as per Item No. 8.00 above but capacity of 300 TR

M&L for replacing the old lubrication oil by reciprocating 34.5 TR capacity compressor by pumping down the compressor system isolating or shut down by serviceable, oil equalizing valves, crank case equalizer valves, side inspection covers by the compressor, opening the oil filter assembly and connection oil line, cleaning filter element, crank case etc with CTC/Petrol and re-fixing the filter unit, boxing up the side inspection cover with new gasket and charging the compressor oil as required quantity as per the standard qty as per model of the compressor and leak testing the joints and opening the closed valves and testing & commissioning the compressor all as specified and directed by Engineer-in-Charge. NOTE:- Compressor oil shall be measured and paid separately under relevant schedule item.

Supply only compressor oil complete all as specified and as directed. Make : Sheetal N-68 / Servo / Castrol / Bosch

Supply and charge refrigerant gas R 134A (Environmental friendly) including leak testing the system, arresting the leaks with necessary materials like gasket/ ‘O’ rings/ washers all as specified and directed by Engineer-in-Charge. Make : Mafron / Freon / Floron

Supply and Charge refrigerant gas R22 (Environmental friendly) for Package AC unit, including leak testing the system, arresting the leaks with necessary materials like gasket/ ‘O’ rings/ washers all as specified and directed by Engineer-in-Charge. Make: Mafron/ Freon/ Floron

M&L for repair and servicing of suction and discharge valves of compressor SMC-6-100 including replacing of Teflon sheet washer and Neoprene rings etc. complete all as specified directed by Engineer -in Charge.

M&L for dismantling the defective induction motor of capacity 15 HP to 40 HP of any make 415 V, 4 Pole 1440 RPM, 50Hz of any duty or any class of insulation from the bed duly coupled with pump/ compressor/in AHU, transporting to work shop, removing burnt out winding from stator/ motor, rewinding with suitable gauge of super enamelled copper wire of approved make and replacing drive end and non drive end bearings, insulation materials, varnishing, heating, reassembling, testing and commissioning complete all as specified and directed by Engineer-in-Charge. Note: - Motors removed for rewinding shall be overhauled completely by replacing defective bearings and the quoted rate shall be deemed to be inclusive of the same.

M&L for overhauling of split casing type pump up to 40 HP including dismantling the pump and replacing the complete damaged spare parts, repair / replacing the worn out shaft, replacing the bushes roller / ball bearings, bearing glands package, renewing all corroded studs, gasket, damaged impellers etc. assembling and aligning including testing and commissioning the pump complete all as specified and as directed.

M&L for taking down the defective fan motor of flange mounted extended type shaft upto 3 HP, 3 phase, 415 volts, 6 Pole, 900 RPM, 50 Hz, along with fan assembly and dismantling the motor complete cleaning with CTC, including rewinding the motor with appropriate gauge copper wire, necessary paper, tape, terminal etc., insulation shall be of class ‘F’ and degree of protection shall be IP-55, the work includes renewal of all corroded bolts & nuts, terminal block, and assembling, fixing in position, fixing of fan blade, and alignment of the fan blade for the suitable air throw of the cooling tower, testing & commissioning the cooling tower motor complete all as specified and directed by Engineer-in-Charge.

M&L for complete servicing/ repairs to Package Air conditioning unit of Fuel equipment bay of make Blue Star, model no. DPAI322R1-I of capcity 11 TR Consisting of two Nos 5.5 TR compressor units, with and including Servicing of two Nos outdoor units complete by blowing out the dust, spraying the organic based scale removing agent at the appropriate ratio to the condenser fan area, till removal of complete scales & dust, flushing through for proper air flow across the coil, checking of all electrical connections, greasing of motor bearing, renewal of all defective copper tubes from indoor unit to out door unit, replacement of corroded sheet metal screws, applying synthetic enamel paint over a coat of primer on the rusted portion, reassembling the sheet metal parts, and testing the unit all as specified and as directed by Engineer-in-Charge. Note : (a) Spares will be measured & paid separately under relevant items of schedule. (b) M & L for Gas leak testing will be measured and paid separately. (c) The replacement of belts & cleaning of filters is deemed to be included in the quoted rate.

All as per the Item No. 19.00 above but Blue Star, model no. DPAI983R1A-I of capacity of 16.5 TR consisting of three Nos 5.5 TR compressor units with and including Servicing of three Nos outdoor units all as specified & as directed by Engineer-in-Charge

M&L for complete leak testing the indoor and outdoor units, complete refrigerant pipe with Nitrogen gas, locating the leaks, rectify the leak by brazing/ welding and pressure testing the complete system of 5/5.5 TR Capacity of air cooled package AC system all as specified and as directed by Engineer-in-Charge.

S&F in repair capacity control solenoid valve of 3 way connection and suitable to operate in 230V 50Hz AC for SMC series ACCEL make compressor complete all as directed. Make:- Rotex/Sporllon

S&F in repair LED indicator capacitor bulb (red/green) colour of suitable size as directed. Make : L&T/ Havells/CG.

S&F in repairs butterfly valve 75/80mm bore, PN 1.6 with necessary rubber gasket, bolts, nuts and washer complete all as specified and as directed by Engineer-in-Charge. Make: Zoloto / L&T/ Audco / Leader

S&F in repair MS pipe with flanged ends, 150 mm bore, heavy grade including flanges, all fittings required, gasket, nut-bolt etc., making joints, welding work, laid in trenches or on ground / vertically complete all as specified and as directed by Engineer-in-Charge. Make -Tata / Jindal Steel / Surya Roshni Ltd. / Bhushan Power & Steel Ltd. / M/s APL Apollo Tubes Ltd Note:- All fittings such as Tee, Bend, Cross etc required shall deemed to be considered in unit rate quoted against this item.

All as per Item No. 25.00 above but 100 mm bore

All as per Item No. 25.00 above but 80 mm bore

S&F in repair 20x3 mm size copper Strip, fixed on wall / in floor by brazing of all joints and final connection to end point equipments including GI nut bolts complete all as specified and directed by Engr-in-Charge.

S&F in repairs oil pressure differential cut out unit including necessary wiring and testing & commissioning all as specified and directed by Engineer-in-Charge. Make - DANFOSS / RANCO

All as per item No. 29.00 above but High pressure cut out

All as per item No. 29.00 above but Low pressure cut out

S&F in repairs 4" dia pressure gauge meter in refrigerant line including necessary pressure line with 1/4" copper tube and long neck type Brass file nut and fixing to the compressor and checking of leaks complete all as specified and directed by Engr-in-Charge. Make : Industrial / Hitech

All as per item No. 32.00 above but 2" dia Pressure Gauge Meter

Supply only Sealed Compressor of capacity 5/5.5 TR suitable for package air conditioning unit of M/s Blue Star Model No. DPAI322R1-I / DPAI983R1A-I complete all as specified and directed by Engr-in-Charge. Make: Danfoss / copeland

Supply only fan blade suitable for package air conditioning unit of make M/s Blue Star Model No. DPAI322R1-I / DPAI983R1A-I complete all as specified and directed by Engr-in-Charge.

Supply only fan motor suitable for package air conditioning unit of make M/s Blue Star Model No. DPAI322R1-I / DPAI983R1A-I complete all as specified and directed by Engr-in-Charge.

Supply only Drier assembly complete suitable for package air conditioning unit of make M/s Blue Star Model No. DPAI322R1-I / DPAI983R1A-I complete all as specified and directed by Engr-in-Charge.

M&L for carrying out leak test for 3 x 34.5 TR Direct Expansion system by extracting the existing available Gas from the system to separate cylinder, storing and pressurizing the complete system with Dry nitrogen and check the leaks, identify the leak, rectification of leaks by brazing/welding at the leak points/replacing by damaged valve gland package/Gasket etc and after rectification of all leaks, pressure testing the complete system up to 300 Psig at high side, 200 Psig at low side of the system, holding the pressure for 24 Hours and vacuuming the complete system after releasing the Dry nitrogen and charging the refrigerant Gas to system and testing & commissioning the plant checking all controls complete all as directed by Engineer-in-Charge

All as per item No. 38.00 above but 180 TR Chiller system

All as per item No. 38.00 above but 300 TR Chiller system

M&L for complete overhauling / servicing of FRP cooling tower of 300 TR capacity, removal of complete scales, dirt etc. by using chemicals, cleaning the sump louvers, PVC fills, fan assembly, renewal of spray nozzles with connected pipe, renewal of nuts and bolts, leak arresting of the FRP tank, replacing of PVC fills and complete painting of the cooling tower as per the standard practice complete all as specified and directed. NOTE: - PVC Fills shall be measured and paid separately under relevant item.

All as per item No. 41.00 above but capacity of 180 TR cooling tower

All as per item No. 41.00 above but capacity of 34.5 TR cooling tower

M&L for Servicing / Checking / inspection of AHU of Make: Zeco of capacity 17500 CFM of 3x300 TR central AC plant with and including dismantling units, sheet metal parts, blowing out the dust, chemical cleaning by spraying the organic based scale removing agent Vaniklin at the appropriate ratio till removal of complete dust & scale deposits in the fin area of evaporator coil, flushing through for proper air flow across the coil, cleaning of expansion valve; greasing of blower motor, checking of electrical connection, cleaning of air filters, greasing of blower motor, replacement of unserviceable bearings, Painting of blower motor, water drain lines, renewal of rusted sheet metal screws, applying one coat of synthetic enamel paint over one coat of primer on the rusted portion and testing & commissioning including assembling the unit all as specified and as directed by Engineer-in-Charge.

All as per item No. 44.00 above but of capacity 20,000 CFM

All as per item No. 44.00 above but of capacity 21,000 CFM

All as per item No. 44.00 above but of capacity 40,000 CFM

Carrying out repairs and maintenance, attending to breakdown of 3x300 TR variable speed screw type liquid chiller Central AC plant of capacity 600 TR (2x300 TR Working & 1x300 TR Stand by) of Make: Carrier Model : 23XRV3132NRVAA9 as per the following scope of the work given below including carrying out general repairs including periodical servicing to ensure smooth and trouble free operation of plants to the entire satisfaction of users / department complete all as directed by Engineer-in-charge. Scope of Work : (a) (i) Periodical monitoring / Inspecting the complete AC Plant and carrying out preventive / periodical maintenance to ensure smooth functioning of AC plant. The periodical inspection for preventive maintenance shall be carried out by the authorised technician / service engineer of OEM once in a quarter which shall be measured as one Job. (ii) If any breakdown occurs for monitoring the operational condition of AC plant during the same quarter, shall be attended whenever required which is included in the rate quoted for preventive maintenance job. (iii) Each preventive maintenance including breakdown call during the respective quarter will be measured as one Job. The contractor shall ensure quarterly preventive maintenance including breakdowns, if any during that quarter shall be attended only by the authorised technician / service engineer of OEM i.e. M/s Carrier. Contractor shall submit MOU with the OEM within 15 days of Acceptance of tender and shall be got approved by GE. Inspection report of each quarter duly mentioning the date of inspection, signature of service engineer and Engineer-in-charge shall be submitted for claiming payment. (Contd...)

(b) Visual inspection for oil traces, Air heat exchanger (condenser) cleaning, check for removed protection devices, and badly closed doors/ covers, check that the temperature difference between the heat exchange inlet and outlet is correct, check the refrigeration system, motors and starters for performance and healthy condition of plant. (c) Checking the system for leaks and rectification of leaks if any. (d) Taking a set of readings and evaluating the same to ensure the satisfactory performance of the plant. (e) Checking the refrigeration control system for operation and adjusting the settings as and when required. (f) General Cleaning the evaporator and condensing coils (g) General Lubrication of the bearings of motors, pumps and fans as and when required. (h) Inspection of belts, which includes adjusting the tension including replacement if required. (j) Replacing of the refrigerant as a result of leak arising from the system due to standard wear and tear. (k) Repairing/ replacing the components of the equipment at site or at workshop as required (l) To check proper functioning of microprocessor and take control test. (m) Intimating any breakdown requiring specific major repairs/overhauling to the contractor/ user/ JE/ Eng-in-charge for immediate rectification of defect. (n) Attending the complaints/ break down whenever received by user /JE /Eng-in-Charge and attending the complaint for same within 4Hr of receipt. (o) The repair/replacement of all spare parts like ICVC Boards, compressor fan motor rewinding, electrical switch gears, contactors, PCB, refrigerant gas etc., are not in the scope which shall be measured and paid separately under relevant items. Spectrochemical oil analysis and oil replacement shall be carried out by the contractor through the manufacturing company viz. M/s carrier at the beginning of the contract and once as directed by Engineer-in-charge during contract period. In case need arises to change the compressor as a whole due to any defect the manufacturer is to inform the department well in time to avoid breakdown. (p) Any minor spares/ repairs items which are required to keep the plant in operational are deemed to be included in scope. Note:- It is responsibility of contractor to engage required manpower as per requirement and take necessary measures to run the plant in event of breakdown to the satisfaction of user and as directed by Eng- in-charge .Considering the sensitive nature of installation the contractor shall always be in a position to make alternate standby arrangement in case of any major break down affecting the complete shut down of plant. The cost for same is deemed to be included in scope of item.The labour charges for fixing, commissioning, testing and of new spares including dismanlting old units is included in the quoted rate.

All as per Sl Item No 48.00 & 48.01 above but for 3 X 180 TR (2x180 TR Working & 1x180 TR Stand by) Flooded type screw chiller Central AC plant of Make: Voltas complete all as specified and as directed by Engineer-in-charge.

S&F in repairs electronic type PCB mother Board for 180 TR capacity AC plant VRF system of Make:- VOLTAS chilled water system including Testing and commissioning of AC plant complete all as specified and as directed by Engineer-in-charge.

S&F in repairs Assembly PCB Power Inverter Board suitable for 300 TR variable speed screw type liquid chiller & of Make : Carrier Model : 23XRV3132NRVAA9 complete all as specified and as directed by Engineer-in-charge.

S&F in repairs 80 Watt Inverter Board suitable for 300 TR variable speed screw type liquid chiller & of Make : Carrier Model : 23XRV3132NRVAA9 complete all as specified and as directed by Engineer-in-charge.

S&F in repairs Current Transducer Sensor suitable for 300 TR variable speed screw type liquid chiller & of Make : Carrier Model : 23XRV3132NRVAA9 complete all as specified and as directed by Engineer-in-charge.

S&F in repairs Screw Compressor Oil suitable for 300 TR variable speed screw type liquid chiller & of Make : Carrier Model : 23XRV3132NRVAA9 complete all as specified and as directed by Engineer-in-charge.

S&F in repairs Flow Switch suitable for 300 TR variable speed screw type liquid chiller & of Make : Carrier Model : 23XRV3132NRVAA9 complete all as specified and as directed by Engineer-in-charge.

S&F in repairs Fan Motor Drive suitable for 300 TR variable speed screw type liquid chiller & of Make : Carrier Model : 23XRV3132NRVAA9 complete all as specified and as directed by Engineer-in-charge.

S&F in repairs Motor Cooling Filter suitable for 300 TR variable speed screw type liquid chiller & of Make : Carrier Model : 23XRV3132NRVAA9 complete all as specified and as directed by Engineer-in-charge.

S&F in repairs V Belts of Size B 1846 LP/B 71 complete all as specified and as directed by Engineer-in-charge. Make : Ecodrive / Poly-F / Hilton / Optimax / Dunlop

S&F in repairs V Belts of Size B 1872 LP/B 72 complete all as specified and as directed by Engineer-in-charge. Make : Ecodrive / Poly-F / Hilton / Optimax / Dunlop

S&F in repairs V Belts of Size B 2659 LP/B 103 complete all as specified and as directed by Engineer-in-charge. Make : Ecodrive / Poly-F / Hilton / Optimax / Dunlop

S&F in repairs V Belts of Size POLY-F PLUS SPA 2180 complete all as specified and as directed by Engineer-in-charge. Make : Ecodrive / Poly-F / Hilton / Optimax / Dunlop

M&L for PVC Fills of size 600 X300X150 MM (Blocks) including taking down existing one complete all as specified and as directed by Engineer-in-charge. Make : Honeycomb / Europack

S&F in repairs GI metal frame with powder coated Pre Filters 15 micron capacity made out of fibre visco washable type of Size 48"x48" and 50 mm thickness complete all as specified and as directed by Engineer-in-charge.

All as per Sl Item No. 63.00 above but Size of 24"x12"

S&F in repairs GI metal frame with powder coated fine Filter 5 micron capacity made out of fibre visco washable type of Size 12"x12" and 50 mm thickness complete all as specified and as directed by Engineer-in-charge.

All as per Sl Item No. 65.00 above but Size of 18"x18"

Supply & installation in repair of cross linked closed cell thermal insulation of 30 mm thickness over chilled water pipes of any size, thermal conductivity of insulation not exceeding 0.038 w/mk at 40 degree Celsius. The material should be fire retardant, self-extinguishing and class 1 certified as per BS 476 part, CFC free & on combustion it should not emit HCN NO+ NO2 and SO2 + H2S gases. Smoke generated would be lighter than air and white in colour so as to allow easy exit passages in case of fire. Thermal insulation would be protected by thermal insulation protective coating of aluminium sheet not less than 0.30 mm thick in short length all as specified and as directed by the Engr-in-charge.

M&L for taking down the damaged fan assembly of FRP cooling tower and connected fitting from the position and supply & fix by new fan assembly of capacity 1.5 / 2 HP, 1300mm minimum with 04 blades fan hub assembly made out of Die Cast alluminium, with necessary clamp supports, SS nut & bolts testing commissioning the cooling tower complete all as specified and as directed by Engineer-in-charge.

M&L for carrying out repair to cooling tower fan motor of 5 to 7.5HP flange mounted extended shaft type, including taking down from the position, transporting to local work shop, dismantling the motor, replacing damaged unserviceable shaft, bearings, rusted nuts & bolts including servicing motor by motor varnishing to winding, painting external surface of the motor with 2 coats of synthetic enamel paint, Providing a PVC cap for top portion of motor for rain protection etc. assembly back and installation to position, testing & commissioning complete all as specified and as directed by Engineer-in-charge.

M&L for replacing the cooling tower motor base frame, base plate, Nut & bolts all as per the existing size and shape complete all as specified and as directed by Engineer-in-charge.

M&L for taking down the defective unserviceable fan motor and assembly from the cooling tower of of 180 TR Capacity & Make DELTA, Model-5081 and supply and fix the new fan motor of 7.5 HP, 3Phase, 720 RPM, 440V, 50Hz of extended type shaft, flange mounted with IP-55 Degree of protection, weather proof along with fan assembly with 1800 mm sweep by 06 fan blades with suitable hub assembly, clamps nut & bolts etc. including connecting up the power supply and testing all as specified as directed by Engr-in-Charge.

M&L for dismantling of existing AHU duct and Supply & Fixing new AHU duct 24 gauge with insulation coating and necessary iron angle support complete all as specified and directed by Engineer-in-Charge.

M&L for carrying out 'B' check for DG set of capacity 250 KVA after 06 months or 250 hrs running, whichever is earlier as per manufacturer's recommendation including replacement of fuel filters, air filters, oil filters, 'O' rings, engine oil, gasket, coolant etc complete all as per manufacturers instructional manual and all as directed by Engg-in-charge. Make of Engine: Cummins / Kirloskar Note:- Unit rates quoted against this item shall be considered to include cost of fuel filters, air filters, oil filters, 'O' rings, gasket etc. however engine oil & coolant shall be measured and paid seperately under relevant item.

All as per Sl item No. 73.00 above but for DG Set of 625 KVA capacity Make of Engine: Kirloskar / Cummins

All as per Sl item No. 73.00 above but for DG Set of 25 to 62.5 KVA capacity Make of Engine: Kirloskar / Cummins

S&F in repairs 3 pole power contactor of 32 A operational current carrying capacity (AC3 duty), with coil operating voltage 230 V/ 415 V, AC, 50 HZ complete all as specified & as directed by Engr-in-Charge. Make :- L&T / Schneider / C&S / GE

S&F in repairs 3 pole power contactor of 30 A operational current carrying capacity (AC3 duty), with coil operating voltage 230 V/ 415 V, AC, 50 HZ complete all as specified & as directed by Engr-in-Charge. Make :- L&T / Schneider / C&S / GE

S&F in repairs MCCB 3 pole 63 Amps, thermal magnetic release adjustaple type, breaking capacity 16 KA, Ics = 100% Icu including necessary modification in the panel complete all as specified and directed. Make :- L&T / Havells / Panasonic / Hager / ABB / Legrand / Indo Asian

All as per Sl item No. 78.00 above but 400 Amp, breaking capacity of 36 KA

S&F in repairs electronic star delta timer 0 - 30 secs, 230V AC, 2 C/O complete all as specified and directed. Make :- HSDT2CON in GE or equivalent in L&T / BCH

S&F in repairs 12 V, 180 AH maintenance free battery complete all as directed. Make : Exide / Amron / Luminous / Nicco / AMCO

S&F in repairs 24 V, 90-120 AH maintenance free battery complete all as directed. Make : Exide / Amron / Luminous / Nicco / AMCO

Supply and toping up of radiator coolants as per recommendation of engine manufacturer complete all specified and all as directed. Make : Servo / Bosch / Castrol

M&L for repair and servicing of self starters including replacement / rewinding of armature, carbon brush set with holder, king pin holder, check nut, body screens, clutch plate assembly and solenoid switch etc (as per existing) for DG set of capacity 25 KVA complete all as specified and as directed.

All as per Sl item No. 84.00 above but for DG Set of 250 KVA capacity

All as per Sl item No. 84.00 above but for DG Set of 625 KVA capacity

Taking down DG Set of capacity 25 / 62.5 KVA from base frame, dismantling the engine, transporting to workshop for repair / overhauling and replacement of unserviceable spare part, lathe work required for the repair, assembling after repair and transporting back to site, installation, connection and load testing complete all as specified and directed. Note: - (i) Spares required for replacement shall be measured and paid separately as supply only under relevant items. (ii) Minor consumable like Petrol, CRC, Brasso etc for cleaning shall be included in the quoted rate.

Supply only Cylinder liner with joint ring suitable for DG set of capacity 25 / 62.5 KVA and of make as per OEM complete all as specified and directed.

Supply only Piston assembly complete suitable for DG set of capacity 25 / 62.5 KVA and of make as per OEM complete all as specified and directed.

Supply only Gasket for cylinder head (1.22mm) suitable for DG set of capacity 25 / 62.5 KVA and of make as per OEM complete all as specified and directed.

Supply only Set of joints (for PG )/4H.3031 suitable for DG set of capacity 25 / 62.5 KVA and of make as per OEM complete all as specified and directed.

Supply only Inlet and exhuast valve pair suitable for DG set of capacity 25 / 62.5 KVA and of make as per OEM complete all as specified and directed.

Supply only Valve guide (for inlet & exhuast) suitable for DG set of capacity 25 / 62.5 KVA and of make as per OEM complete all as specified and directed.

Supply only Valve seat insert (inlet) suitable for DG set of capacity 25 / 62.5 KVA and of make as per OEM complete all as specified and directed.

Supply only Valve seat insert (exhaust) suitable for DG set of capacity 25 / 62.5 KVA and of make as per OEM complete all as specified and directed.

Supply only Valve seal suitable for DG set of capacity 25 / 62.5 KVA and of make as per OEM complete all as specified and directed.

Supply only LE Bearing Standard suitable for DG set of capacity 25 / 62.5 KVA and of make as per OEM complete all as specified and directed.

Supply only Lube oil suitable for DG set of capacity 25 / 62.5 KVA and of complete all as specified and Make : Bosch / Servo / Castrol

Supply only cylinder head suitable for DG set of capacity 25 / 62.5 KVA and of make as per OEM complete all as specified and directed.

Supply only Turbo Repair kit suitable for DG set of capacity 25 / 62.5 KVA and of make as per OEM complete all as specified and directed.

Supply only Injector suitable for DG set of capacity 25 / 62.5 KVA and of make as per OEM complete all as specified and directed.

Supply only Fuel Pump suitable for DG set of capacity 25 / 62.5 KVA and of make as per OEM complete all as specified and directed.

M&L for preparation of old painted external surfaces of DG set of capacity 25 / 62.5 KVA including alternator, radiator support channels, panel board, connected equipments complete and spray painting with two coats synthetic enamel paint complete all as specified and as directed. Note:-Rusted surfaces of DG Set shall be scraped with sand paper and shall be applied with one coat of zinc chromate primer before application of paint and unit rate quoted against this item shall be considered to include this aspect.

M&L for checking complete wiring for AMF panel for DG set engine of capacity 625 KVA and identifying fault in the safety and control system wiring from AMF panel to engine control gadgets like HWT, LLOP, and shut down valve, dynamo self-starter etc., rectifying fault in the AMF system including replacement of EC-2 Relay, suitable capacity of contactor, burnt control wiring cable with thimbles and ferrules, blown out fuses for proper functioning and testing the DG set complete all as specified and as directed by Engr-in-Charge.

All as per Sl item No. 104.00 above but for DG Set of 25 / 62.5 KVA capacity

All as per Sl item No. 104.00 above but for DG Set of 250 KVA capacity

M&L for De-scaling of radiator of DG set of capacity 625 KVA by dismantling the upper & lower tank and cleaning the core pipes with cleaning chemicals (radi wash), components and arresting the leakage in core by brazing / dummy with lead including cleaning of upper and lower tanks and replacing the upper and lower gaskets and required nuts, bolts, re-fixing the same including testing and painting complete all as specified and directed.

All as per Sl item No. 107.00 above but for DG Set of 250 KVA capacity

All as per Sl item No. 107.00 above but for DG Set of 25 / 62.5 KVA capacity

Supply and replace automatic battery charger of 12V/24 Volt,0-10 Amps / 0-5 Amps charging rate with auto cut off system complete all as specified. Make : Amaraon / Amaraja / Exide / Elak

S&F in repairs Copper Tube of dia 3 cm (1 1/4" ) for 11 TR AC Plant complete all as specified and directed.

SRIESWARI ENTERPRISES

M/S CHANDRA ENGINEERS AND CONTRACTORS

M/s.DSRK CONSTRUCTIONS

SRIVALLI ENGINEERS

SAI ENGINEERING WORKS

ANAND ENTERPRISES AND ENGINEERS

P VENKATA RAO

Chitturi Associates