Repair and Maintenance Infrastructure Assets. SH. Repairs to pumps and motors under the jurisdiction of Tilak Marg Service centre

Amount

Rewinding of squirrel-cage horizontal electric induction motor operated on 3 phase , 400/440 volts , 50 cycles AC supply at 1450 RPM including providing copper wire of the required size ( Burnt copper would not be returned to the NDMC) including dismantling and refixing the repaired induction motor on the same base-plate , making proper alignment with the centrifugal pump , refixing tyre type flexible coupling ,providing and fixing new connection plate, providing broken nuts & bolts (if any) including cartage from the site to the workshop & back to site , testing , commissioning etc complete. a) 100 HP

Providing and replacing (both driving and non driving end )no good ball bearing by new 2 Nos ball bearing for 10 hp 3 Phase400-440 volts operated electric induction ,motor for vaccum pumpset including greasing, cartage labour testing etc. complete. A) 100 HP

.Providing and fixing B C H/ L& T make Air Break Push Button operated fully automatic citation star-delta starter (Cat. No. NASACT2LEDM) comprising of three Nos. citation M contactors (40 Amps), one No. over load relay (Relay range: 37.60 – 60.00Amps), and one No. pneumatic timer suitable for operation on 400/ 440 volt, 3 phase, 50 Hz A C supply in sheet steel enclosure including providing and fixing required copper thimbles, making electrical and earth connections, also mounting the starter on M.S frame of suitable dimensions and grouting the frame on the floor including testing and commissioning etc. complete as per the satisfaction of engineer in charge and dismantling the existing open-execution starter.

Providing and fixing aluminium cable by kalinga /National make 50 mm2 PVC insulated armoured three core aluminum conductor cable of 100 meter length along with 6 nos. aluminium thimble for the both end of cable suitable for voltage grade upto 1100V complete including lug, connectors, insulating tapes etc. of required size as required for making connection from MCCB to starter.

Overhauling of Kirloskar make (Model DV-40) vacuum pump by means of providing & replacing the following parts and job work :- a) EN-8 shaft

b) Shaft sleeve

c) Ball bearing

d) Gland plate

e) Gland packing

f)Bearing Housing

g) Dismantling , re-assembling & again fixing at the existing site on the same base plate after replacing the defective no-good parts including providing 4 nos. of S.S. stud with S.S. nut for gland plates , bolt/nut/washer as required , cartage from the site to the workshop & back to the site including testing ,commissioning etc complete

Overhauling of Kirloskar make (Model DV-50) vacuum pump by means of providing & replacing the following parts and job work :- a) EN-8 shaft

b) Shaft sleeve

c) Ball bearing

d) Gland plate

e) Gland packing

f) Bearing housing

g) Dismantling , re-assembling & again fixing at the existing site on the same base plate after replacing the defective no-good parts including providing 4 nos. of S.S. stud with S.S. nut for gland plates , bolt/nut/washer as required , cartage from the site to the workshop & back to the site including testing ,commissioning etc complete

Providing and Fixing M.S. chequered plates 6mm thick in required shape,size and welded with angle iron frame 40x40x6mm size of angle iron, at 15cm centre to centre,2cm long point welding and corners joints mitred for covering of the pipe duct with 2 nos holes drilled on other side suitable for fixing MS bar 12mm dia 45cm long handles as per requirement including cutting of sheet with gas cutter including grinding of edges with grinding machine including applying a priming coat of ready mix redoxide chromate primer of approved brand and manufacture etc. complete as per satisfaction & direction of engineer in charge.

Credit for Dismantle items: 1. Ball Bearing

2.EN8 shaft

3. Shaft sleeve

4. Gland Plate

5. Bearing Housing

6. BCH starter 30 HP

7. 50 mm2 aluminium cable

8. Dismantle M.S. Material

Dismantle bakelite connection plates. (a) 100 Hp

(d) 20 Hp, 10 Hp,5Hp

RAJESH KUMAR

S.S.VASHIST AND CO.