87620E8 REPAIRS AND MAINTENANCE OF OH CRANES AND ALLIED WORKS AT ARMY AREA UNDER GE AVADI.

Amount

BOQ UPLOADED ON 12 JAN 2021

Comprehensive repair / service / maintenance of electrically operated over head travelling (EOT) cranes comprising of hoist motor, long travel motor, cross travel motor, micro hoist, gear boxes, electrical control panel and other connected accessories installed at various workshops at Ordnance Depot, EME Workshops, loading / unloading bays at Ordnance Depot and EME Workshops including keeping the cranes operational round the clock of the following capacity complete all as specified and as directed by Engineer-in-Charge.

(a) EOT crane oF 2.0 Ton capacity at CVD EME Workshop ("B" Vehicle repair), SM No-11057

(b) EOT crane oF 2.0 Ton capacity at CVD EME Workshop ("B" Vehicle repair), SM No-11058

(c) EOT crane oF 5.0 Ton capacity at CVD EME Workshop ("B" Vehicle repair), SM No-11060

(d) EOT crane oF 10.0 Ton capacity at CVD EME Workshop ("B" Vehicle repair), SM No-11056

(e) EOT crane oF 50.0 Ton capacity at Vehicle Depot shop at P-29 OD Avadi, SM No-214048

Note for BOQ Items No.2.00 to 2.05:-

(a) The scope of comprehensive maintenance comprises the following read in conjunction with particular specifications here-in-after and rate quoted is deemed to include for the same :-

(i) The repairs / servicing / maintenance works for EOT cranes including hoist hook universal type and shall be carried out by trained / skilled technicians and shall conform to standard engineering practice / code and as per the standard code / norms of Government and minor repairs.

(ii) The cranes shall be inspected and serviced at the rate of minimum of one service per month.

(iii) Attending to any breakdown within 24 hours and restoring the service.

(iv) Insurance coverage for all technicians, workers involved in the works

(v) Record / maintain register of all maintence carried out.

(vi) Adherence to safety rules and regulations in respect of EOT cranes.

(vii) Adherence to security rules and regulations of the Ordnance Depot.

(viii) A list of makes / brands of spares / materials to be incorporated in the works shall be got approved immediately after receiving the work order.

(ix) All tools, instruments and plants required for carrying out the above works shall be provided by the contractor.

(x) All consumables like cotton waste, grease (but excluding wire rope compound, gear box oil, hydraulic gear oil, transformer oil which shall be measured separately) required for the maintenance of the EOT cranes shall be provided by the contractor.

(xi) Replacement of unserviceable major parts as detailed here-in-after shall be measured separately.

Inspection of EOT cranes by any Central /State Govt Approved Safety authorities and testing on load for proper function and safety all as per standard testing procedure laid down and submission of test certificate in triplicate of the following capacity complete all as specified and as directed by Engineer-in-Charge.

(a) EOT crane oF 2.0 Ton capacity at CVD EME Workshop ("B" Vehicle repair), SM No-11057

(b) EOT crane oF 2.0 Ton capacity at CVD EME Workshop ("B" Vehicle repair), SM No-11058

(c) EOT crane oF 5.0 Ton capacity at CVD EME Workshop ("B" Vehicle repair), SM No-11060

(d) EOT crane oF 10.0 Ton capacity at CVD EME Workshop ("B" Vehicle repair), SM No-11056

(e) EOT crane oF 50.0 Ton capacity at Vehicle Depot Workshop at P-29 OD Avadi, SM No-214048

Note for BOQ Items No.3.00 to 3.05:-

The contractor shall produce proof of mandatory payment to the Govt authorities for the safety tests carried out.

Renewal / replacement of unserviceable parts of EOT cranes 2.0 Ton / 5.0 Ton / 10.0 Ton capacity with new parts compatible and enabling the smooth functioning of the crane complete all as specified and as directed by Engineer-in-Charge.

(a) Power contactor 3 phase, 415 Volts, 50 Hz of size ML-3

(b) Auxillary contactor 16 Amps

(c) Over Load Relay Bimetal type 25 Amps to 6 Amps.

(d) Pneumatic timer 0 to 60 seconds.

(e) Indicator lamp 15 watts with holder

(f) Electromagnetic brake coil size 200mm dia - Set of 02 Nos

Renewal / replacement of unserviceable parts of EOT cranes 50.0 Ton capacity Model No. SM No-214048 at P-29 at Avadi with new parts compatible and enabling the smooth functioning of the crane complete all as specified and as directed by Engineer-in-Charge.

(a) Hoist Rotary limit switch

(b) Brake drum with key groove 200mm dia.

(c) Electromagnetic brake 200mm size

(d) Thrustor brake 18 kg torque for hoist.

(e) LT rotary type ON/OFF switch, 100 Amps

(f) Break liner metallic type 6mm thick of 400mm dia. (Set of 2)

(g) Break liner metallic type 6mm thick of 250mm dia. (Set of 2)

(h) MCCB 250 Amps, 4 pole, 36 kA rating adjustable thermal and adjustable magnetic setting.

(j) Pendant box for 12 way button station.

(k) Auxillary contactor for all motions from 12 to 16 Amps

(l) Over Load Relay 12 to 25 Amps.

(m) Rail type timer 10 to 30 seconds.

(n) Kitkat fuse 6 to 32 Amps.

(o) 6mm dia GI chain for festoon trolley.

Taking down defective slip ring / squirrel cage induction motor, 3 phase, 415 volts and rewinding with super enamelled copper winding of appropriate gauge and quality and insulated with varnish after removal of burnt out winding from slots with emery paper, servicing, reassembling and reinstalling in its original position, testing and commissioning of the following capacities complete all as specified and as directed by Engineer-in-Charge.

Preparing old painted steel surfaces of EOT cranes consisting of girders and end carriages, trolleys 20m span for long travel / cross travel and hoist with motors, gear box on wheels, electric panel boards and resistance box, rope pulley, cross travel rails, platform, sheave block with hook etc., and applying one coat of synthetic enamel paint of the following capacity complete all as specified and as directed by Engineer-in-Charge.

(a) EOT crane oF 2.0 Ton capacity

(b) EOT crane oF 5.0 Ton capacity

(c) EOT crane oF 10.0 Ton capacity

Repairs / servicing of main power receiving panel of of EOT cranes 2.0 Ton capacity and renewing and replacing with new parts compatible and enabling the smooth functioning as listed below complete all as specified and as directed by Engineer-in-Charge.

(a) Auxillary contactor 16 Amps - 04 Nos

(b) Main contactor ML-3 - 01 No

(c) Timer 0.5 to 60 seconds - 02 Nos

(d) Transformer Incoming - 415 Volts, 3 Outgoing - 215 Volts, 110 Volts and 24 Volts - 1 No

(e) Rotary type ON/OFF switch, 63 Amps - 01 No

(f) Kitkat fuse set 6 to 32 Amps complete - 07 Nos

(g) Over Load Relay 4 to 8 Amps - 01 No

(h) Rail connector - 30 Nos

(j) Rotary type ON/OFF switch, 6 Amps - 03 Nos

(k) Panel indication lamps RYB colour - Set of 3 - 01 No

Renewal / replacement of Hoist hook universal type including renewal of wornout bearing for 2.0 Ton capacity EOT crane complete all as specified and as directed.

Renewal / replacement of Hoist hook universal type including renewal of wornout bearing for 5.0 Ton capacity EOT crane complete all as specified and as directed.

Renewal / replacement of Renewal and replacement of DSL carbon bus bar type - Set of 04 Nos for 10.0 Ton capacity EOT crane complete all as specified and as directed.

Renewal / replacement of Electromagnetic brake unit 150mm dia for Long Travel motion for 10.0 Ton capacity EOT crane complete all as specified and as directed.

Renewal / replacement of LED lamp fitting 50 watt for high bay light complete all as specified and as directed.

Note for BOQ Items No.13.00:-

(a) Make shall be Havells Cat No. ILIOSBAYPLUSHBP50WLED857SP90DTOPC or equivalent of makes as listed here-in-after.

(b) For all other mandatory requirements of LED fittings, please refer Particular Specifications here-in-after.

Renewal / replacement of LED lamp 6 Amps with mushroom switch complete all as specified and as directed.

Renewal / replacement of connectors from 6 Amps to 100 Amps complete all as specified and as directed.

Renewal / replacement of hoist pendulum switch complete all as specified and as directed.

Renewal / replacement of safety buzzer 250 W complete all as specified and as directed.

Repairs to gear box assembly of hoist (Cross Travel and Long Travel 2 Nos) of 2.0 Ton capaicty EOT crane by disconnecting / dismantling from its position, shifting to workshop, draining out old unserviceable oil, dismantling the gear box completely, inspecting, removing and renewal of worn out bearing, oil seals, gasket kits and carry out machine work at machine shop as required, assembling back, refilling with new lubricating oil of grade C320 upto required level (Approx 30 Litres), shifting back to work site, refixing in original in position by connecting all accessories, testing and operating for satisfactory functioning complete all as specified and as directed by Engineer-in-Charge.

Repairs to gear box assembly of hoist (Cross Travel and Long Travel 2 Nos) of 5.0 Ton capaicty EOT crane by disconnecting / dismantling from its position, shifting to workshop, draining out old unserviceable oil, dismantling the gear box completely, inspecting, removing and renewal of worn out bearing, oil seals, gasket kits and carry out machine work at machine shop as required, assembling back, refilling with new lubricating oil of grade C320 upto required level (Approx 30 Litres), shifting back to work site, refixing in original in position by connecting all accessories, testing and operating for satisfactory functioning complete all as specified and as directed by Engineer-in-Charge.

Repairs to long travel rail at 15m height by removing complete rail assembly of size 60 LPS, cleaning the gantry girder, carry out grinding of girder to smooth surface with grinding machine, refixing back to its position and supplying, fixing, fabricating CT rail base and cup, rail type clamps made of mild steel (Approx 380 Nos), carry out realignment work for smooth functioning of crane including all essential parts of 5.0 Ton capaicty EOT crane complete all as specified and as directed by Engineer-in-Charge.

Repairs to long travel rail at 15m height by removing complete rail assembly of size 90 LPS, cleaning the gantry girder, carry out grinding of girder to smooth surface with grinding machine, refixing back to its position and supplying, fixing, fabricating CT rail base and cup, rail type clamps made of mild steel (Approx 380 Nos), carry out realignment work for smooth functioning of crane including all essential parts of 50.0 Ton capaicty EOT crane complete all as specified and as directed by Engineer-in-Charge.

Repairs and maintenance to longitudinal motion DSL (Down shop lead) system by dismantling the clamps at 15m height, cleaning the busbars with Carbon Tetra Chloride solution, refixing clamps and renewing the damaged clamps (Approx 100 Nos) of same size and material, removing and renewing the unserviceable current collector shoe of 4 Nos in the bus bar DSL systems and testing for satisfactory operation of 50.0 Ton capacity EOT crane complete all as specified and as directed by Engineer-in-Charge.

Renewal / replacement of festoon roller bearing of 50.0 Ton capaicty EOT crane complete all as specified and as directed by Engineer-in-Charge.

Wire rope compound for EOT crane.

Hydraulic gear oil 90 / 140 W suitable for EOT crane.

Transformer oil suitable for EOT crane.

Taking down the existing unserviceable PVC insulated and sheathed flexible cable, copper conductor of size 4 core, 10 sqmm and taken on credit and replacing with new PVC insulated and PVC sheathed cable, copper conductor of size 4 core, 10 sqmm, multistranded 1100 volts grade complete all as specified and as directed.

Taking down the existing unserviceable PVC insulated and sheathed flexible cable, copper conductor of size 4 core, 6 sqmm and taken on credit and replacing with new PVC insulated and PVC sheathed cable, copper conductor of size 4 core, 6 sqmm, multistranded 1100 volts grade complete all as specified and as directed.

Taking down the existing unserviceable PVC insulated and sheathed flexible cable, copper conductor of size 4 core, 2.5 sqmm and taken on credit and replacing with new PVC insulated and PVC sheathed cable, copper conductor of size 4 core, 2.5 sqmm, multistranded 1100 volts grade complete all as specified and as directed.

Renewal / replacement of Steel wire rope 22mm thick structure 6/37 inner fibre strandscomplete all as specified and as directed.

Renewal / replacement of Steel wire rope 12mm thick structure 6/19 inner fibre strands complete all as specified and as directed.

Renewal / replacement of Steel wire rope 10mm thick structure 6/19 inner fibre strands complete all as specified and as directed.

Renewal / replacement of 3 pole power contactor type MNX 70 Amps complete all as specified and as directed.

Renewal / replacement of 3 pole power contactor type MNX 45 Amps complete all as specified and as directed.

Renewal / replacement of 3 pole power contactor type MNX 9 Amps complete all as specified and as directed.

Removing of old earthing materials and taken on credit and provision of new earthing complete with galvanised iron earth plate electrode 600mm X 600mm X minimum 6mm thick, with and including earthing of 32mm x 6mm GI strip protected by 40mm dia GI pipe light grade upto a length of 7.5m. The plate shall be buried directly in ground vertically to a depth not less than 2.25 metres below ground level with top edge of the earth plate at a depth not less than 1.5 metres below ground level, connected to earth lead as described here-in-before by means of bolts, nuts, washers and checknuts made out of galvanised iron or mild steel, earthing lead protected by as described here-in-before and connected to main switch board or main control board or electric pole all as shown on electrical plate No.3 of MES Sch Part-I including necessary earth work and excavation in any type of soil, plain cement concrete 1:3:6, type C1 chamber, reinforced cement concrete cover slab with locking arrangement and handle of 10mm dia MS round bars 450mm long, 1:2:4 type B1, 50mm thick with 8mm dia TMT bars at 140mm centre to centre both ways, GI pipe of bore 20mm medium grade for watering with funnel, wiremesh, salt, charcoal, lugs including testing complete all as specified and as directed.

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