COMPREHENSIVE MAINTENANCE AND REPAIRS OF EOT CRANES OF VARIOUS CAPACITIES INSTALLED IN TECHNICAL AREA AT NPOL UNDER AGE I RND KOCHI

Amount

Comprehensive maintenance consisting of Repair, Maintenence and servicing including replacement of spares for electrically operated overhead travelling EOT cranes, single/double girded, gear type with electric motor for long travel,cross travel, hoisted creap, control panels, protective panels, gear box, gantry rail, main switches, resistance coil, wire ropes, rope drum, brake control, cable and switches , Servicing Break drum cleaning , all electrical connection checking & connecting. Lubricating of all moving parts, cleaning of DSL, proper alignment of cable trolley, festoon cable system & applying one coat spray painting with synthetic enamelled paint of approved quality with and including E/M & MES Srl No. making neatly on each machine complete with connected accessories and components of 05 Ton Capacity of EOT Cranes etc. of the following capacity of crane in the following location/buildings of NPOL Kochi.

EOT crane of Capacity 05 Ton , Double Girder, 11.0 Mtr Span ,SLNo.300 in Work Shop No 3

EOT crane of Capacity 05 Ton , Double Girder, 11.0 Mtr Span, Sl No. 301 in Work Shop No2

EOT crane of Capacity 05 Ton , Single Girder, 5.40 Mtr Span, Sl No. 302 in Nagan Building

EOT crane of Capacity 05 Ton , Single Girder, 5.80 Mtr Span, Sl No. 303 in Vasuki Building

EOT crane of Capacity 10 Ton ,Double Girder, with span of 16 mtrs (approx), height of lift 6 mtrs (approx), travel length 80 mtrs (approx) at Hanger bldg (ASSP).

EOT crane of Capacity 03 Ton , Double Girder, with span of 16 mtrs (approx), height of lift 6 mtrs (approx), travel length 80 mtrs (approx) in Hanger (ASSP).

EOT crane of Capacity 01 Ton ,Single Girder, 7.44Mtr Span in T Complex mini Tank Building.

EOT crane of Capacity 05 Ton , Double Girder, 9.74 Mtr Span in Encapulation Room(Moulding Shop) , T Complex Building.

EOT crane of Capacity 10 Ton ,Double Girder, 27.40Mtr Span at Acoustic tank, T Complex Building.

Notes for Items No:1.00 :- a) The items also includes the cost of grease, oil for oiling the parts, oil seal any type, nutbolts &washers, soldering & welding works, cleaning of LT control panel board by hot blower, The other major parts replaced shall be measured and paid seperately.b) The contractor shall be maintain maintenance register of each crane as per the direction of the Engineer-in -Charge. (c) Check to make sure all bolts are tight and lockwashers are compressed, (d) If required touch up the crane with existing paint wherever necessary, (e) Check clevis pin, cotter pin, (cotter pin should be fully wrapped around clevis pin) and check clevis bolt and hard wares, (f) Check for cracks, puts, and / or grooves of wheels,If any of this conditions exist, wheels should be replaced,

Load testing of EOT Cranes of capacity 5 Ton installed at different locations mentioned as per item nos 1.01 to 1.04 & 1.08 above, by hiring load (RCC cubes ) 05 Ton capacity in 3 Stages (50% , 75 % and 100% ) including suitable transport, cranes and safety measures required for loading and unloading weight and submitting the test report in specific forms duly signed by testing authority complete all as specified and directed.

Load testing of EOT Cranes of capacity 10 Ton installed at Hanger as per item nos 1.05 above, by hiring load (RCC cubes ) 10 Ton capacity in 3 Stages (50% , 75 % and 100% ) including suitable transport, cranes and safety measures required for loading and unloading weight and submitting the test report in specific forms duly signed by testing authority complete all as specified and directed.

Load testing of EOT Cranes of capacity 3 Ton installed at Hanger as per item nos 1.06 above, by hiring load (RCC cubes ) 05 Ton capacity in 3 Stages (50% , 75 % and 100% ) including suitable transport, cranes and safety measures required for loading and unloading weight and submitting the test report in specific forms duly signed by testing authority complete all as specified and directed.

Load testing of EOT Cranes of capacity 10 Ton installed at Main Acoustic tank of T complex as per item nos 1.09 above, by hiring load (RCC cubes ) 10 Ton capacity in 3 Stages (50% , 75 % and 100% ) including suitable transport, cranes and safety measures required for loading and unloading weight and submitting the test report in specific forms duly signed by testing authority complete all as specified and directed.

Load testing of EOT Cranes of capacity of 01 Ton Single Girder of Span 7.44 Mtr in Mini Tank Building at T- Complex building as per item nos 1.07 above complete all as specified and directed..

Note for Item No 2 .00 to 6.00 :- The item includes inspection of the following sub systems and submitting report along with load test certificate duly load tested and signed by Govt authorised/approved Engineer. Any defects noticed by the Govt approved, authorised Engineer shall be rectified by the contractor and retest shall be carriied out at his own cost. (A) LT DRIVE SYSTEM :- (a) Inspection for wear and tear of gears, drive shaft coupling, plummer block and break lininer, greasing, oiling, etc.(b) Checking og Girders and Carriage, coupling bolt, foundation bolt of gear box and motor, (c) Checking of DSL System including carbon brushes, brush holder insulators and tightness of copper conductors, (d) Checking and serviceability of electric motors, power contactors, relays, limit swich, push buttons and electrical circuit cables and wiring. (B) CT DRIVE SYSTEM :- (a) Inspect wear and tear of gears, drive shaft, coupling plummer block and brake liner etc. (b) Checking of tightness of rail clamp bolts, alignment of rail joint, (c) inspection of cross travell conductor cable for motor, power conductors,relays, limit switch, push button etc.

(C)HOIST :- (a) Inspect wear/ tear of wire rope, Hook block and break lines etc. and testing of rope, (b) Checking of electrical circuit limit switch and wiring (D) LOAD FOR LOAD TESTING :- (a) Contractor shall arrange necessary load as per the site requirement of the crane including shifting of load to the site by using crane, truck, labour, etc, (b) Contractor shall take care of the floor while shifting/ lifting the load and if any damage found at site shall be rectified with in 24 Hrs, (c) Load test shall not be more than 110% of the rated load. , (d) Contractor shall shift the load to inside the bulding for load testing of crane carefully by using crane/truck/fork lift/ labour without damage to the existing infrastructure, (e) Load testing shall be carry out as per ISO:4310 of 1981 and IS:14470 of 1997 with latest amendments on the IS . (E)TEST REPORT:- (a) On completion of the load test, a test report shall be prepared listing the conclusions and finding of the test for each crane, The report shall identify the crane tested, shall give the date aned location of the tests,name of the Engineer tested, details of load, positions, configurations and findings if any in each case. (b) T&P for the load test and safety of the mechanic/ Engineer shall be at contractor's risk.

Supply & fixing in replacement of following spares/components of the unserviceable EOT cranes of 03 Ton Capacity complee all as specified and directed.

Limit switch for LT/CT

Limit switch for Hoist

Brake Pad

Hydraulic brake for Hoist

Variable Frequency drive (VFD) For LT/ CT Motor

Magnetic Coil 100mm

Bearing for Motor up to 10HP

Steel wire rope 12mm

Muti speed radio remote control

All as per item No 7.00 above but Cranes Capacity 1 TON complete all as specified and directed :-

3 pole Contactor 10 Amps, 415v

Over load relay

Brake Pads.

Gear box bearing

Brake lining

Limit switch for LT/CT

All as per item No 7.00 above but Crane Capacity 5 Ton complete all as specified and directed.

Limit switch for LT/CT

Brake lining 6mm

Brake Pad

Brake Coil for 100mm &150mm dia

Key Switch.

Gear Coupling for LT.

Gear Wheel.

Ball bearing for 5 T

Over load relay

Hoist gear pinion

Current collector for DSL

Moulded terminal block

Variable Frequency drive (VFD) For HoistMotor

Variable Frequency drive (VFD) For LT/ CT Motor

All as per item No 7.00 above but Crane Capacity 10 Ton complete all as specified and directed.

Hydraulic brake for LT/CT

Limit switch for LT/CT

Limit switch for Hoist

Over Load Relay for CT/LT

Over Load Relay for Hoist

Control Transformer 440/24 Volts 200 VA

Brush holder assembly incl carbon brush

3 Pole Power contactor 32A

3 Pole Power contactor 25A

Magnetic coil 150mm

Bearing for Motor up to 10HP

Brake Lining.8mm

Brake pad

Common Spares

Gear Oil C-320 Grade for LT/CT /Hoist

Tranformer oil for brake thruster

Wire rope guardian compound

Brush holder assembly incl carbon brush

Muti speed radio remote control

Over Load Relay for CT/LT

Over Load Relay for Hoist

3 Pole Power contactor 25A

3 Pole Power contactor 16A

Control Push button for NO/NC

LT PVC insulated and PVC sheathed copper conductor cable 2.5 sqmm 10 core for pendent

LT PVC insulated and PVC sheathed copper conductor control cable 2.5 sqmm 4 core

Crane cable trolly

MCB TPN 415 V, 32 Amps , C curve

MCB TPN 415 V, 63 Amps , C curve

Note for item No 7.01 to 11.15 : (i) The spares/electrical items as listed above will be used whenever required only and it shall measured and paid separately under respective items. (ii) The rate is inclusive of all items as required at site except those items above and any major and overhauling works involved to keep the cranes operational round the clock including cleaning and greasing all moving parts on monthly basis complete all as specified and as directed by Engr-in-Charge. (iii) If spare parts of original make is not available in market necessary suitable spare equivalent to existing crane part as approved by Engr-in-charge shall be used in the work so that to run the crane with smooth functioning. (iv) The contractor should attend any complaint / breakdown immediately on call basis. (v) Contractor should submit the inspection / maintenance report of every visit inspite of no of visits during breakdown calls including mentioning the status of lift and spares any replaced. (vi) The old unserviceable spares replaced under comprehensive maintenace is the property of contractor.

Disconnecting and taking out the defective electric motor from the cranes,transporting to workshop for replacement of burnt out winding with existing gauge super enameled copper wire including insulating paper and varnishing and re-fixing motors to crane after testing, upto 3 HP motor complete all as specified and directed

M & L for Earthing complete with using galvanised steel earth plate 60 X 60 cm X 6 mm thick electrode , buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less than 1.5 metres below normal ground level, connected to 25 X 4 mm galvanised iron strip as earth lead by means bolts, nuts, check nuts and washers all as shown in electrical plate No.3 connected to earthing test point all as specified or indicated including testing on completion necessary complete all as specified and directed.

Material & Labour for Earth continuity conductor fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required 32 x 6 mm dia galvanised iron strip complete all as specified and directed.

National Creations (BID ID -3500671)

B5BUILDING SOLUTIONS (BID ID -3500890)