Maintenance on sliding gates/turnstiles

The U.S. Consulate General Frankfurt is seeking a contractor to provide quarterly preventive maintenance on all sliding gates and turnstiles throughout the Consulate Office Building and Becher 19. The contractor will be responsible for completing all work, including furnishing all labor, equipment, and services required under this purchase order. The contractor must have experience in the production, installation, and maintenance of heavy-duty gates and must provide verification of more than 5 years of experience. The contractor must also be certified for welding work in accordance with DIN EN 1090-2:EXC2. Some of the key tasks include: • Inspecting complete systems for external damage • Checking tightness and correct seating of high-speed motors • Dismantling chain tensioners and inspecting end chain links • Checking springs of chain tensioner for spring deflection • Checking tightness of tensioners and adjusting if required • Checking screw anchoring of floor-plates of motor and tightening if required • Checking locking of castors • Inspecting adjusting screws of castors and setting and adjusting accordingly • Checking safety bars of gate • Checking supporting shoe and adjusting if required • Checking end dampers and adjusting if required • Checking take-up reels • Checking motor coupling and adjusting trailing if required • Checking oil level of geared motor • Checking geared motor for any leakage • Checking gearwheel for abrasion • Cleaning chain • Lubricating chain • Re-greasing slide rails • Cleaning castors • Lubricating castors The contractor must provide a safe working jobsite for all employees and passers-by, and must comply with German local, state, and federal safety standards, as well as the US Army Corps of Engineer Safety and Health Requirements Manual (EM 3851-1).