COMPREHENSIVE MAINTENANCE/ PERIODICAL REPAIR/ REPLACEMENT OF SPARES OF LIFTS INSTALLED AT OLD CGSD ROYAPURAM AND 308 FLATS AYYAPAKKAM AND EOT/ HOT CRANES AND ELECTRICALLY OPERATED HANGER DOOR AT ICG AIR STATION AND BMU CHENNAI

Comprehensive maintenance and repairs including renewal/ replacement of defective parts including Automatic rescue device (ARD) of electrically operated goods lift (a) Make : OMEGA Elevators capacity of 544 Kgs for 7 stops / 7 landings 1.0M/Sec speed Thyristoried dual push button/Simplex Selective Collective control system service Ground floor and two upper floors installed at Coast Guard Royapuram DHQ-5 Chennai (Royapuram - DHQ-5). Serial No/SM MES No. EL-202120337

Comprehensive maintenance and repairs including renewal/ replacement of defective parts including Over load warning device (OLWD) and Automatic rescue device (ARD) at Bldg No - 52, 53, 54, 55, 56 & 57 where available of electrically operated Passenger lift make of M/s KONE Elevators with a capacity of 8 PASSENGERS 544 Kgs for 5 Stops / 5 landings 1.0 per single speed single push button control system with micro processor control system (308 MIG Flats, Ayapakkam) (12 lifts) ground floor and four upper floors. Serial No: Building No - 52 (A) : 44027908 & 52 (B) : 44027909 = 02 Nos Building No - 53 (A) : 44027910 & 53 (B) : 44027911 = 02 Nos Building No - 54 (A) : 44027912 & 54 (B) : 44027913 = 02 Nos Building No - 55 (A) : 44027971 & 55 (B) : 44027972 = 02 Nos Building No - 56 (A) : 44027973 & 56 (B) : 44027974 = 02 Nos Building No - 57 (A) : 44027975 & 57 (B) : 44027976 = 02 Nos

MONTHLY MAINTENANCE/CHECKS (a) Check the position of the operating cum in relation to the landing door and door locks (b) Clean lubricate pivot point and wherever requires (c) Lubricate the brake pin (d) Check suspension of ropes and anchorage and lubricate (e) Check over speed of governor and lubricate the required part (f) Make full ascent and decent to assess the quality of theride at all points

QUARTERLY MAINTENANCE/CHECKS 1. CAR (a)Clean light fixtures (b)Check retiring cam device chain, dash pots, commutator brush cams, divots, fastenings. (c)Check emergency switch/battery & Alarm bell (d)Check safety points, set, screws, switches 2. Check trailing cables for evidence of chaffing orother constructions in the lift well check anchorages 3. Inspect at every landing, landing doors, tracks,guidesand locks, fasteners and clean and lubricate them. 4. Check function box for loose connections and also check mainline switch fuses for heating. 5. Check car and counter weight guides and shoes. 6. Check whether guide rail surface is smooth and clean. Also check the guide shoes for excessive wear & tear 7. Check and lubricate all bearings & gear box 8. Motor, Generators, Evictor : Clean all commentators and renew or reset brushes if necessary. 9. Ropes : Check all fastening inspect all rope for wear and lubricants 10. Leveling : Check leveling operation and switches

HALF YEARLY MAINTENANCE/CHECKS 1. Check door & gate operation, check shaft bearing alignment observation of cams rollers and check for the sign of wear 2. Check selector, signals and communications 3. Check sill channel for bends or cracks 4. Check contacts, switches clean and lubricate. 5. Check door contacts 6. Check shoes and pulleys for worn groves and check that all ropes tie at the same depth and check slippage of rope and condition. 7. Run the machine in both direction and check sign of excessive play or back lash in gear. Check the overheatingor excessive bearing noise 8. Check oil level and oil leakage in the gear 9. In DC motors and MG sets check commutation for fitting or wear and for signs of undue sparking or brush chatter keeps them clean 10. Check brushes and ensure that spring for adjusting Brush pressure is adjusted to give enough pressure on the brushes. 11. Check the conditions of linings and couplings 12. Check the tightness of the coupling keys

ANNUAL MAINTENANCE/CHECKS 1. MACHINE ROOM (a)Examine all main switches for positive make and break of contacts. Check for loose connections (b)Clean machine room and ensure proper earthing of motors, controllers, bed plates. 2. CONTROL BOARD (a)Keeps the controller clean and free from dust (b)Lubricate all moving parts and check for loose connection if any (c)Check gap between armature and housing plate (d)Check and clean all contact (e)Check transformer connections are tight or not (f)Check resistors, capacitors and rectifiers. (g)Check fuse ratings etc

3. MACHINE UNIT (a)Check for any abnormality such as vibrations noisetemperature, alignment and check all grease cups and refill if required (b)Check all bed plate and ensure that all bolts are tight and of the diverting pulley plates and rigid. (c)Check motor/MG set/DC motor & Techno generatorfor oil levels up to the given marking in case of oil leakage change the oil seal and check the axial play rigidly and belt tension. (d)GEAR UNIT : Overheating and leaking to be checked for gear box and must be filled with oil (ENKLO-320) (e) BREAK DRUM & COUPLINGS : Check that bolt, nuts, rubberbushes are in appropriate position(if the rubber bushesare found replace them) (f)Check the running sound, if any unusual running sound develops rectify (g)Check that the diverter pulley and shaft (h)Shift of fruition sleeve on shaft should be checked andrectified immediately. 4. BRAKE (a)Ensure that the brake liners are not worn out (b)Adjust the jaws such that it will not rest on the brake drum while the lift is running. Ensure that both the jaws have same clearances from brake drum. (c)Adjust the brake tension to compromise betweenthe jerk and lift levels. (d)Check the electrical connections are firm or not 5. MAIN LIMIT SWITCH (a)Set the top and bottom striker plate (b)Apply the petroleum jelly on the knife edge contacts

6. MISCELLANEOUS (a)Check over speed governor (b)Check floor selectors (c)Check the up/down indicator bulbs & push button box and change if required (d)Check position indicator (e)Check pre announcing indicator with gang alarm bell/door open bell/buzzer (f)Check landing doors(MS collapsible & swing doors) (g)Check the closing and opening operation of thedoors for smooth operation (h)Check de locking system and ensure proper function. (j)Ensure proper functioning of fire main switch (k)Check car inside ensure that notice board nameplates etc, are fixed in car and check for any creaking notice rectify and lubricate (l)Ensure that gate does not by any change open when the lift is moving in either direction In case of auto door ensure proper functioning of the electrical and mechanical safety. (m)Check car gate contacts switch and clean and lubricate the roller. (n)Check the registration of the call in car push buttonbox and ensure proper operation.

(o)Check, maintenance box, safety lever and switchesrope bolts, guide shoes, retiring cam, gang switches, road switches/magnetic flat assembly, terminal switch final limit switch, door lock, guide rails, guide rail bracket, wire rope counter weight frame & blocks, trailing cable, car sling running clearance, bottom sill, facia plate Compensating chain, emergency light, lift pit stop switch, counter weight enclosures. Junction box, car bottom, car & counter weight buttons tension device for floor selector and speed governess, bottom rubby and rectify if any defects found. (p)COMPLETION CERTIFICATE : (a)Completion certificate to the effect that regular maintenance was carried out shall be obtained from the Engineer-in-Charge month wise. (b)The fraction of month will be calculated by considering the number of days per month as 30 days DGM operations.

(v) Quoted rate includes the testing of all the lifts by licensed Lift Inspector of Tamil Nadu twice in contract period for safety if required / asked by GE. Certificate issued by the licensed lift inspector shall be submitted to Engineer-in-charge. (vi) In case of any of the lift/lifts is/are not working for more than 24 hours but less than 10 days, Recovery will be affected at the rate of Rs.2,000/- per lift per day and Rs.3,000/- per lift per day after 10 days. (vii) The above lifts shall be repaired through OEM (Original Equipment manufacturer) or through their nearest authorised/ accredited agency service personel only. The bidder shall submit and uploading MoU from the OEM of lift or their authorised/ accredited agency at time of uploading of tender. (viii) Contractor should submit all valid docucments before the opneing of tehcnicial bid. (ix) The unit rate quoted includes the cost of renewal of licence of each lift. (x) Testing cerfificte of each lift duly tested by Electrical Lift Inspector shall be provided by the contractor.