Specifications include, but are not limited to: Service to be provided shall include two (2) preventive maintenance inspections per contract year. These inspections shall be performed during the months of April and October. Inspections shall include but are not limited to: INSPECT all counter balance assemblies, rollers, bearings, cables, chains, shaft, track and hardware all safety equipment and related controls all electric operators, operator bearings, disconnect linkage, ropes, chain hoist assemblies all end locks ADJUST all spring counterbalance assemblies. level of door track spacing clutch, brake and limit assemblies LUBRICATE counterbalance shaft bearings, rollers, hinges, chain hoists, bearings, disconnect, chains, gear reducers, pivot points TIGHTEN hardware including hinges, couplings, drums, track brackets, hangers, sprockets, brake solenoids, draw-arms and hook up When major repairs are required, the Contractor shall submit to the Contact Person an estimate for Board approval prior to commencement of work. PARTS AND MATERIALS Parts, replacement parts and materials installed by the Contractor shall be new and warranted as new and shall be factory approved. Any parts which become faulty will be the responsibility of the Contractor for replacement at no cost to the PLCB. This replacement provision does not apply to PLCB negligence. Includes necessary replacement of standard parts covered under warranty Replacement parts not covered under warranty shall be at net cost plus mark up