Specifications include, but are not limited to: A. Contractor shall provide repair and maintenance services on a time and materials basis. B. Services provided will have no precise schedule and will vary from year to year. Services may include items such as: load testing, lubrication, routine maintenance and replacement of load markings, chains, wire ropes, hooks, bearings, brakes, limit switches, sprockets, gears, gear boxes, resistors, wheels, shafts, bumpers, guard, warning devices, controls, pendants, rails and drums, re-spooling services and radio-controlled operating systems. C. Contractor shall mobilize and be on site within four (4) hours of initial call, which may be required at any time, including evenings, weekends and holidays. Contractor will communicate arrangements for delivery of lifts and other large equipment with King County’s designated Industrial Planner/Scheduler. Contractor shall arrive with all equipment necessary to perform an assessment of the situation and/or perform the services requested, including scaffolding, ladders and lifts, and shall initiate the procurement for parts support while on site.