bids are invited for repair and overhauling service - repair and maintenance; as per sample; no; buyer premises six monthly routine of major fire-fighting system fm-200 (make: kidde fenwal, usa, type: fire suppression system) is falling due in end sep 25. routine to be carried out through oem/pac/competent certified firm and certificate to be provided for the same. following routines to be carried out as per revised maintenance schedule:- 1.1.1 test pneumatic switches for operation. 1.1.2 check pneumatic detection system. 1.1.3 check nitrogen cylinder weight & record. fer cylinder, si no. aa 451995. cap: 600 lbs. (qty of gas: 174 kgs). aer cylinder, si no. aa 454459. cap: 200 lbs. (qty of gas: 81 kgs).