Specifications include, but are not limited to: 6.1.1Contractor under this contract will maintain the entire elevator equipment as hereinafter described on the terms and conditions subsequently set forth. Contractor will use trained staff directly employed and supervised by the Contractor. These staff members will be qualified to keep the equipment properly adjusted, and will use all reasonable care to maintain the elevators in proper and safe operating condition.6.1.2Contractor will quarterly and systematically examine, adjust, clean, lubricate, furnish lubricants, and when conditions warrant, repair or replace: MACHINES, MOTORS, GENERATORS AND CONTROLLER PARTS, including but not limited to Worms, Gears, Thrusts, Bearings, Brake Magnet Coils or Brake Motors, Brake Shoes, Commutators, Brushes, Windings, RotatingElements, Coils, Contracts, Resistors, Magnet Frames, and other mechanical parts. Only high-grade parts that are specifically designed for these purposes should be used.These replacement parts shall be equal to or better than the parts installed by original manufacturer in terms of both performance and quality. Contractor shall provide a list of all repairs parts, repair part numbers and source of manufacturer to the City as repairs are completed. 6.1.3Contractor will keep the guide rails properly lubricated; secured and aligned at all times except where roller guides are used, and when necessary renew guide shoe gibs or guide rollers in order to assure smooth and quiet operation.6.1.4Contractor will quarterly examine all safety devices and governors, and equalize the tension on all hoisting ropes. All safety tests required by the ANSI-A 17.1 shall be performed when due and in the presence of the City Property Maintenance Supervisor, or his designee.6.1.5Contractor will renew all wire ropes as often as necessary tomaintain an adequate factor of safety, and repair and/or replace traveling cables, hydraulic valves, non-submersible pump motors, hack packing and seals.