Repair to Pumping Machinery of unit II and other allied works at LIS Khawaskhan and Repairs of 6 cusec x 8 meter Head pump and 30 HP motor of unit 1 along with allied works at LIS Ismailpur

Repair to Pumping Machinery of unit II and other allied works at LIS Khawaskhan

Disconnecting the power supply from 20 HP motor, decoupling and dismantling of pump and motor of unit II from the base frame by unscrewing foundation nuts & bolts. Taking out pump and motor from the pumping room with the help of manual skilled labour and shifting to roadside. Loading in the Mechanical Transport and carriage to workshop for repair & then back carriage to LIS Khawaskhan after conducting necessary repair in the similar manner. Dismantling the motor of 20 HP at workshop and extracting out the rotor from stator. Repairs to rotor shaft by way of re-metaling turning, threading, cutting of key way and finishing to required size. Fabrication and P/F of sleeves to both the end of motor and finishing to bearing size, fabrication, providing & fitting of bearing cover plate inner 2 Nos, Providing and fitting of 02Nos bearing to driving end (6309 2RS) and non-driving end (6309 2RS). Complete varnishing the stator coil and then allow it to dry. Assembling back the motor after ensuring the proper insulation. Dry testing the motor in workshop for checking any play in the rotor shaft. Complete job includes cost of material, labour charges and testing at workshop. Repairs to 03 cusec 10mtr discharge pump at workshop by way of dismantling it for extraction of old and worn out parts i.e. bearing, sleeve check nut, gland packing, gasket, gland bush, pump shaft, impeller. Repair to impeller by way of metaling, turning and finishing to size. Repair to pump shaft by way of welding, turning, machining, threading & finishing to the required size. P/F of 01No. Gland bush, 01No. Check nut, 02Nos. bearing as per sample. Re-assembling all parts of pump with proper greasing and suitable gland packing and filling of M. oil. Fabrication, providing and fitting of new gland set as per sample along with required nuts and bolts, fitting the pump set at base frame and coupling it with motor by way of providing and fitting of coupling pulley as per sample after boring to required size and cutting of key ways as per size to match with the pump and motor shaft along with required coupling bolts and rubber bushes of appropriate sizes. The job also involves welding of 3”x3” 4 Nos. metal piece of flat iron of appropriate thickness on the base frame and leveling the motor with pump to counter the vibration if any. Connecting the suction and delivery pipe by P/F rubber sheet joint along with required nuts and bolts. Job includes cost of material, labour charges, installation and testing on full load condition at LIS Khawaskhan.

Rebate on Old Parts

Repairs of 6 cusec x 8 meter Head pump and 30 HP motor of unit 1 along with allied works at LIS Ismailpur

a)Decoupling of 06 cusec x 08 meter head pump and motor of unit No. I. Dismantling of foot valve from suction of unit No. IV by cutting old rusted nuts & bolts with the help of cutter. Then carriage and shifting of dismantled 06 cusec pump, motor of unit no. I and foot valve of unit no. IV by way of shifting to nearest roadside using manual labour, ropes, chain pulley etc, loading in mechanical transport vehicle and then carriage to workshop for repairs. After complete repairs back shifting of pump, motor and foot valve to site of installation i.e. L.I.S Ismailpur. The job includes labour charges for carriage, shifting, loading and unloading of the dismantled machinery and also hire charges of vehicle to workshop (to & fro). All the tools and tackles are to be arranged by firm. Repairs to 06 cusec pump of unit I at workshop by way of dismantling of top cover of split casing pump, extraction of old and worn out parts /damaged parts i.e. bearings, sleeves, check nut, gland packing, gasket, gland bushes, pump shaft, impeller. Re-building/repair to impeller by way of brazing, filling of pitted vanes and finishing to accurate size. Repair to pump shaft by way of remetalling, turning & finishing to accurate size. P/F gland bushes-02Nos, check nuts-02Nos., Bearings- 2Nos. Sleeves-02 nos. Repair to pump housing along with providing of air release valve. Re-assembling all parts of pump with proper greasing and service of bearing housing along with suitable gland packing, oil paper. Fabrication , providing & fitting of new gland plate set as per sample, nuts & bolts as required at site. Providing fitting of new coupling set of unit 1 by way of fabrication of new coupling pulley set as per sample and according to size of motor and shaft, making of key ways (both HC pump and motor side) and then coupling both pump and motor and checking their alignment . Job includes cost of material, labour charges, installation and testing on full load condition at site. Repairs to rotor shaft of motor of unit 1, 30 HP by way of dismantling the motor ,providing and fitting of new bearings (DE & NDE) after rebuilding of the rotor shaft and finishing to bearing sizes, making new keyway of coupling, providing and fitting of bearing end covers, sleeves. Complete greasing of the bearings. Repair of 200 Amp HRC fuse set by cleaning it to remove carbon and then fitting of HRC fuse along with dressing, crimping, thimbling and insulating the incoming and outgoing cables with proper dressing and also repair to spring controlled handle. Providing/Fitting of 25sqmm copper wire of length 15 meter from main switch to voltage stabilizer after making the cable ends both sides, dressing and thimbling on both sides by copper thimbles Fixing the electrical connection by P/F of new nuts and bolts of appropriate size at LIS Complete job includes cost of material and labour charges with hiring charges of tools and tackles. The Job also includes repairs to foot valve 12”dia of unit 4 by way of extraction/cleaning of foot valves by means of cutting old of nuts, bolts by using gas cutter and extraction by using long boom crane /chain pulley with the help of manual labour, cleaning of foot valve internal parts to remove silt . Dismantling the foot valves, providing and fitting of new machined flapper plate along with pins, repair to strainer, providing of new leather washers, rubber gasket, nut bolts. Re-assembling of entire foot valve & Checking operation without load at workshop. Strengthening of 250 mm suction pipe of unit 3 by plugging the leakage by way of welding at the spots of damages along with making flanges leak proof by welding, providing of new nut bolts , 250 mm bend- 01 no. , rubber sheet at joints. Shifting it to site by using mechanical transport and then fitting it on suction side of pump with the help of manual labour using required tools and tackles. Strengthening and extension of trash rack by fitting of new angles , knitted wire by way of welding ,cutting and joining them with proper alignment. Complete job includes cost of material, labour, head load charges, hire charges of welding set, transportation and other unforeseen material and work at site. Painting of machinery along with NRV (04 nos.), sluice valves (04nos.), suction line and delivery line for all pumping units (04 nos.) and 01 no. priming unit , base frame of pump sets and motor set (4no.) by first cleaning the surface with the help of sand paper and then applying one coat of primer and two coats of blue/black paint. The job includes cost of material, hire charges of tools and tackles required for the job including labour charges. The job should be executed at site and necessary arrangements are to made by firm for its transportation or repair at site. Complete job includes cost of material, labour, head load; hire charges of welding set, transportation and other unforeseen incidentals at site. b) Providing of 300A main switch HRC type at LIS Ismailpur. The job includes providing/ fabrication of MS angle frame of suitable size , embedding of its cross arms in the walls by making hole, and PCC and fixing the frame . Fitting of main switch on embedded frame by way of drilling holes and nut bolting Disconnecting / extraction of existing service cable 3.5 core from the existing damaged thermal relay by way of making hole in the wall and then relaying it on other side and passing inside the pump room through wall on front side making of cable ends crimping, thimbling it and fitting to the main switch . Providing/Fitting of 25sqmm copper wire of length 15 meter from main switch to voltage stabilizer after making the cable ends both sides, dressing and thimbling on both sides by copper thimbles. The job includes giving connection of main cable to main switch by way of is connecting / extraction of cable from the existing damaged thermal relay ,thimbling it and fitting to the main switch by way of reorientation of cable on other side by drilling hole in the wall, Making all electrical connections and testing the main switch on full load at site. Repair to 125A panel installed at LIS ismailpur by detecting the fault, Fitting of new Bimetal over load relay suitable for 125A panel installed at LIS ismailpur as an extra protection to protect the motor in case of failure of fault analyzer. voltage stabilizer after making the cable ends both sides, dressing and thimbling on both sides by copper thimbles Repair to bus bar/flexible copper cable arrangement of adequate current carrying capacity. Complete job includes cost of material, transportation tools and tackles, labour to be employed at site.

Rebate on Old Parts

NATIONAL ELECTRO-MECH COMPANY

M/S FASTTRACK ENGINEERS

NATIONAL ELECTRO-MECH COMPANY