27/MID/AN

Dismounting of 485 kW, 650 HP BHEL Make HT motor from its place of installation by way of disengaging all its three phase cable connections of rotor, stator, commutator assembly, trifurcated sealing box, etc. Opening & disengaging coupling set (Motor half coupling & Pump half coupling) of Unit No. 04, separating motor from motor skirt by opening all its nuts & bolts and placing motor on steel fabricated stool properly. Complete job.

Transportation charges for shifting of worn out items from LIS Ranjan to workshop and back shifting to site of installation after strengthening / reconditioning involving manual loading , mechanical transportation and handling charges. Complete job

Re- Fabrication, and fitting at site line shaft 70mm x 2150mm long made of SS AISI- 410 grade duly machined and finished to size along with machining of keyways of size 90mm x 20mm x12 mm on either side for fitment of muff couplings.

Strengthening /reconditioning of MS 500 mm dia, 2000 mm long column pipe by way of rebuilding the worn out / undersize portions at both ends, Re-welding / Re facing of MS flanges on either side , P/F of new M24 x 80mm size bolts, welding with superior quality of welding electrodes , alignment of repaired portion of the pipe, checking eccentricity and removing ovality etc. complete job including handling charges.

Reconditioning of 200 mm dia x 2000mm length, ERW shaft enclosing tube by cutting, removing from both ends of 200 mm dia shaft enclosing flanges and fitting of new flanges similar size as specification to each end of the tube which should have six no.s of M20 dia size threads, MS welding to both ends of the flanges with main tube and then turning, facing both the ends in respect of all over accurate thickness, straightening and alignment, facing of the flanges. Complete job

Re-Fabrication of heavy duty ERW flanged end shaft enclosing tube of 200 mm. dia x 2000mm long, 6/8 mm. thickness, having flanges on either side ( welded on inside of the pipe ) with drilled and threaded 6 nos holes to suit M20 x 50mm bolts

Strengthening/Reconditioning of column assembly components by Fabrication of C.I. guide spider set with three legs complete comprising of one no. guide spider suitable for line shaft of size 70mm dia, three no.’s rubber pads and slotted CS M12 x 20mm screw, one no. rubber bearing, one no. cover for rubber bearing and bearing screws and washers.

Fabrication of SS muff coupling of size of length 300mm and bore size to suit line shaft of dia 70mm along with its top & bottom split nuts and key ways. The machining should be done accurately for proper fitment and removal as and when desired during dismantling of the column assembly. Complete job.

Repairing of Guide spider by way of replacement of rubber bearings, nitrile rubber pads for arms, CS head screws M12 x 20mm, MS cover dia 130mm with drilled 4 nos holes for rubber bearing locking and locking screws M10 mm.

Re- Fabrication of MS Strainer by way of welding of MS machined top flange having 14 nos M24 threaded holes (for adaptibility & fitment to main Bowl assembly ),duly provided with welded mesh for restriction of floating / suspended trash. Providing of 14 nos HT bolts of size M24 along with the strainer. Complete job

Assembling of each column one by one with 70 mm shaft, 200mm internal tube and 500mm external pipe in sequence while lowering in the respective pit along with assembled bowl assembly. This includes fitting, lowering of line shafts, guide spiders, muff couplings, top shaft, tension tube, deflector tube, joining of discharge surging head with delivery line 500 mm dia along with providing and fitting of relevant joining material, fire fly sheet, graphite packing, grease packing, 19 mm size nuts, bolts, washers, fitting and tightening after complete alignment, leveling etc. Complete job

Testing of pumping unit which includes installation of 485 KW, 650 HP, 6.6 KV VT motor solid shaft BHEL make HT motor on the skirt and its alignment with respective pump half coupling, reconnection of dismantled cable connections of 6.6 KV, 3 phase to rotor, stator, slipring assembly, liquid rotor starter trifurcated sealing box and space heater, cleaning of all carbon brushes, connecting of motor half coupling with pump half coupling, checking all connections with proper alignments and adjustment and testing of pumping unit for its proper operation

TARSAIM ELECTRICAL WORKS

M/S K S ENGG WORKS