Specifications include, but are not limited to: B. Biannual (two (2) times per year) Maintenance Services shall consist of: 1) Lube all points of friction, including but not limited to, rollers, bearings, gears and guides. 2) Ensure the doors are balanced, the motor limiters are properly adjusted, the drive chains are tight, and the manual system is in proper working order. 3) Inspect and test all door (if applicable) functions, including but not limited to, the electrical wiring and connections, chain, chain shafts, gears and bearings. 4) Biannual maintenance supplies shall include, but not be limited to, belts, cleaning chemicals, oil, grease points, cleaning rags, switches and fuses. 5) Oiling all moving parts, align, tighten drive chain on gate and set limit switches. 6) Motor and clutch mechanism. 7) Bearing, gears and shafts. 8) Oil and fluid levels. 9) Grease for chain shafts, bearings, etc. 10) Chain lube, inspection and link replacement.