SPECIAL REPAIR / REPLACEMENT TO GUIDE RAIL AND MOTORIZATION OF HANGAR DOORS AT HANGER NO. 1 AT AFS BIDAR

Amount

Repair and motorisation of existing hangar doors of clear opening 29.00 x 8.50m (closed position) consisting of 6 door leaves, each door of size 5.0 m x 8.10 m biparting type including necessary modifications to the wheels, gantries etc.,providing suitable type electric motors not less than 3 HP capacity, suitable heavy grade reduction gears for free movement movement of hangar door horizontally inward and outwards all as specified and as directed. Notes:- The scope of work includes for :- (a) Dismantling of exisiting hangar door with required T&P door dimensions - 29.00m wide x 8.50m height ( total 6 leaves, 3 on each side, bi-parting leaf size 5.0 m wide and 8.10 m height) (Weight of each leaf - 1.5 Tons approximate) (b) Indentification & replacement damaged parts of Bottom wheel, Top roller, Drive assembly with Idler system, beams, tee, angle iron section, rails, guides and steel sheet. Items to be replaced shall be measured & paid separately under respective items. Unless otherwise catered for separately any requirement for smooth movement of Hangar doors shall deemed to be included in quoted rate of this item.

Sl Item No 1.00 Contd., (c) Re-installation of repaired hangar door with required T&P and greasing all wheels & Railings. 'D' shape Neoprene gasket should be fixed at edge of both leafs meeting at centre meeting point of two door leafs in each enrties and nylon brush should be fixed at the bottom of door leaf for removing small obstacles at bottom track. (d) Testing and commisioning of hangar doors including providing of Heavy duty rubber buffer at parking bay to avoid jerk in door while staging at parking bay. (e) Making good all disturbed masonry / concrete /PQC for fixing rails/ steel surfaces to match the existing surface all as specified and directed. (f) Top and Bottom rails as per existing shall be aligned via thorough check in detail and it should be mainitained at FFL and top of structure .The new rails shall be fixed at the bottom and top grouted or fixed in such a manner that it supports the top shutters and the channel shall embedded with PQC or same as existing Concrete to match. (g) Preapration of new or old steel surfaces and applying two coat of synthetic enamel paint over one coat of red oxide, zinc chrome primer complete all as specified and as directed (h) Existing top guide track shall be aligned. Damaged top guide angles should be replaced, cleat should be fixed on top guide to prevent door leaf from falling down in case of derailing of door leaf. (i) Provision shall also be made for manual operation of door and braking system including provision of handle for manual declutching near motor.

Supply only Bottom wheel assembly of heavy duty 300 mm thread diameter, double flanged EN-8 steel grade forged wheels with hardness 300 to 350 BHN with ZZ sealed maintenance free ball bearings complete all as specified and as directed. (Note : Rate for fixing is included at item ser No 1)

Supply only Top roller assembly of heavy duty 100 mm thread diameter, EN-8 steel grade forged wheels with hardness 300 to 350 BHN with ZZ sealed maintenance free ball bearings and should be placed in channel/rail so that it will not slip from the guides at any time and ensure free movement of panel leaf. (Note : Rate for fixing is included at item ser No 1)

Supply and fabrication of hanger doors using Rolled mild steel sections as in running rails and guides for sliding doors fixed with angle cleats, connecting plates etc, FE-290, Grade-E-165 complete all as specifed and as directed. (Note : Rate for fixing is included at item ser No 1)

Supply only Rolled mild steel as in heavy bracket framing (beam,tee, angle, channel or flat sections) including distance pieces etc fe-290, Grade-E-165 complete all as specifed and as directed. (Note : Rate for fixing is included at item ser No 1)

Supply only pre-painted galvalume aluminium zinc coating GI based Corrugated steel sheet 0.50 mm thick of any colour, having 550 Mpa tensile strength as in roof covering/cladding to door,with proper screw rivetting complete all as specified and as directed. (Note Rate for fixing is inluded at item ser No 1)

M & L for Submain wiring with 2 runs of single core 4 sqmm PVC insulated unsheated (FRLSH) multistranded 1100 volts grade with copper conductor drawn through and including non-metalic Rigid PVC Conduit ISI marked and its accessories alongwith one run of single core 4.0 sqmm PVC insulated unsheated multistranded 1100 volts grade with copper conductor cable as earth continuty conductor and connected from DB to DB/main board, including taking down existing wiring complete all as specified and directed. Note:- (i) 3 Run of 4 Sqmm and one run of PVC conduit will be considered as one unit per running metre. (ii) Cutting chasis wherever required will be measured and paid for separately.

M&L for sub main wiring/power wiring with 4 runs of 10.0 sqmm PVC insulated stranded copper conductor FRLS 1100 V cable and one run of 10 sqmm copper FRLS 1100V cable as earth lead drawn in existing ERW steel conduit including taking down old unserviceable wiring complete all as specified. Note : Five runs of 10.0 sqmm PVC insulated stranded copper conductor shall be measured and paid as unit per running meter.

Cutting chasis in wall for and inclusive of taking down of existing unserviceable sub main wiring of any type / description as existing at site and making good to the disturbed surfaces by plastering with 1:3 cement mortar, painting the surface with matching to the colour and finishes after fixing of PVC conduit at item no. 4 and 6 in chasis/ wall complete all as specified and as directed.

S&F in replacement, limit switches for automatic cutoff for all driving leaves complete all as specified and as directed.

Taking down existing LT Panel, supply and fix LT Control panel board CPRI Approved made out of 2.0 mm thick MS box ,powder coated, indoor type weather proof with TP MCBs 32 Amps- 1 Nos of suitable rating, emergency stop switch one set for each driving leaf consisting suitable relays, power and auxiliary contactors MK-1 type - 1 No, over load and under voltage protections and single phase preventor etc., with suitable hooters / blinkers and push button switches for forward and reverse movements including suitable bus bars, indication lamps, interlock contactors, warnings lights etc . All control cables from panel to motors and to limit switches of suitable rating shall be fixed with cable trailing / bunching arrangement with suitable cable carriers , festooms etc , as per the designed requirement complete all as specified and as directed. Note :- All control cabling work as required for commissioning of door motor shall deemed to included in quoted rate.

S & F in repairs, test Drive Assembly along with idle assembly system ,housed in fully enamelled weather proof box with suitable electrical totally enclosed fan cooled, Squirrel cage induction motor of type IE3, flame proof, Copper winding, class F insulation with temp limited to class B with and capacity not less than 5 HP, three phase (Motor should be fitted to master leaf) with suitable heavy grade speed reduction gear attachments for movement of main leaf along with subsequent movement of slave leaf - 2 Nos with slave arrangement mechanism including suitable declutching facility for manual operation . The speed of door movement shall be 7 to 8 mtr per minute complete all as specified and as directed.

Greasing and overhauling of Hanger door guiding rail wheel , incl replacement of unsv shaft bearings , replacement of unsv GI wire rope, replacement of broken shaft of door mechanism for smooth movement of the hanger door leaves complete all as specified and directed by Engr-in- Charge . NOTE:– (a) Consumable Spare Parts such as Bearing, Wheel shaft, Wheel etc. wherever required shall be included in the QUOTED UNIT RATE. (b) Labour required for replacement of unserviceable Parts shall also deemed to be included in the quoted rate.

S & F of 'V"/ Chain belt drive for Transfer of power to hanger gate lower wheel through motor drive mechanism, complete all as specified and as directed.

S & F sheet metal enclosure VTPN 4 way Double door Ready to use DBs - Provided with insulated vertical phase bus-bars |neutral bar/s with shroud/s | earth bar/s | sticking saddles | cement spill protector | color-coded interconnecting wire set | cable ties | blanking plates and circuit identification labels With provision for 4 Pole MCCB upto 200 A as incomer and SP/SPN/TPN MCBs as outgoing complete all as specified and directed.

Supply and fixing in replacement MCCB in of 125 Amp 4 pole 25 KA ratings in existing panel board connecting with proper size link set, incoming ,out going cable electrically connected and making necessary modification in existing panel as required at site complete all as specified and directed by EIC.

Mr Madhusudhan Kotarki (BID ID -3426608)