operation & comprehensive maintenance of electromechanical services for bsnl admin bldg, sara complex and wireless compound at santacruz ( w ) , mumbai-54., comprehensive maintenance and round the clock operation of various electromechanical services as per details given in relevant sections by deploying the required staff / or by automation including specialized manpower and by arranging required tools and plant etc to keep all the services operational upto the required standards . a ) admn . bldg . - services included are: 1 ) ei & fans 2 ) compound lighting 3 ) lightning conductor 4 ) pumps 5 ) 2 x 400 kva ( 11 kv indoor ) substation 6 ) 1 x 380 kva ea sets 7 ) fire detection and alarm system 8 ) window & split ac units i / c casette type ac 9 ) fire extinguishers 10 ) fire hydrant system ( excluding underground and surface mounted pipes but including valves , hydrants , engines , pumps etc . like major items ) b ) wireless compound -services included are: 1 ) ei & fans 2 ) compound lighting 3 ) lightning conductor 4 ) pumps 5 ) fire detection and alarm system 6 ) window & split ac units 7 ) fire extinguishers , contractors to take all steps to undertake preventive / special maintenance and testing to keep the system at optimum working condition . size of various services is given in section- i b ) minimum staff required : morning shift : 1 wireman general shift : 1 wireman + 1 a / c mechanic + 1 helper second shift : 1 wireman note: engineer in charge can rearrange shifts as per site requirement subject to maximum shifts specified in a day . if more persons are required for satisfactory operation , the same shall be arranged by the firm at no extra cost . lodging of lift failure complaint , monitoring & maintaining log book of complaints has to be carried out by the agency . , servicing & routine maintenance ( b check ) of following capacity of dg set complete with cleaning of air cleaner element , replacement of engine lube oil of proper grade ( seal pack of reputed make ) , replacement of lube oil filter elements , replacement of fuel filter elements , check & reset injector pressure , check & reset injector pump timing , retighten cylinder head nuts , adjust engine valve clearance , replacement of radiator water by fresh distilled water with addition of coolant additive concentrate , cleaning of radiator fins , drain sediments from water separator , check inlet air restriction , check air piping , belt tensions i / c cleaning & dedusting of alternator , control panel , fuel tank , tightening & maintaining of all hose connections , electrical connections , battery connections etc & actual load testing of dg set after servicing etc as directed . i ) 1x 380 kva dg set , supplying & fixing of fully charged 12 volt , 180ah lead acid maintenance free battery for starting of 500 kva e / a sets complete with end sockets etc . note- 1 ) the battery ( s ) of each dg set shall be replaced ( measurable basis ) once during currency of contract & agency shall consider rebate for old battery while quoting of rates . additional requirement to be borned by agency without extra cost .