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In-N-Out Burgers NGF 255 Progate Drive Thru Service Manual © 2011, IMI Cornelius Inc.- 17 -Publication Number: 621058475SER Sanitize syrup lines, B-I-B Systems 1. Remove all the quick disconnects from all the B-I-B containers. 2. Fill a suitable pail or bucket with soap solution. 3. Submerge all disconnects (gas and liquid) in the soap solution and then clean them using a nylon bristle brush. (Do not use a wire brush). Rinse with clean water. 4. Using a plastic pail, prepare approximately five (5) gallons of sanitizing solution. 5. Rinse the B-I-B disconnects in the sanitizing solution. 6. Sanitizing fittings must be attached to each B-I-B disconnect. If these fittings are not available, the fittings from empty B-I-B bags can be cut from the bags and used. These fittings open the disconnect so the sanitizing solu- tion can be drawn through the disconnect. 7.Place all the B-I-B disconnects into the pail of sanitizing solution. Operate all the valves until the sanitizing solu- tion is flowing from the valve. Allow sanitizer to remain in lines for fifteen (15) minutes. 8. Remove the nozzle and syrup diffuser from each valve and clean them in a soap solution. Rinse with clean water and reassemble the nozzle and syrup diffuser to the valve. 9.Remove the sanitizing fittings from the B-I-B disconnects and connect the disconnects to the appropriate  B-I-B container. Operate the valves until all sanitizer has been flushed from the system and syrup is flowing freely. Replenishing CO2 Supply (As Required) NOTE: When indicator on the 1800-psi gage is in the shaded (“change CO2 cylinder”) portion of the dial, CO2 cylinder is almost empty and should be changed. 1. Fully close (clockwise) the CO2 cylinder valve. 2. Slowly loosen the CO2 regulator assembly coupling nut allowing CO2 pressure to escape, then remove the regulator assembly from the empty CO2 cylinder. 3. Unfasten safety chain and remove the empty CO2 cylinder. !WARNING: To avoid personnel injury and/or property damage, always secure the CO2 cylinder with a safety chain to prevent it from falling over. Should the valve become accidently damaged or broken off, a CO2 regulator can cause serious personnel injury or death could occur. 4. Position the full CO2 cylinder and secure with a safety chain. 5. Make sure gasket is in place inside the CO2 regulator assembly coupling nut, then install the regulator assem- bly on the CO2 cylinder. 6. Open (counterclockwise) the CO2 cylinder valve slightly to allow the lines to slowly fill with gas, then open the valve fully to back-seat the valve (back-seating the valve prevents gas leakage around the valve shaft). 7. Check CO2 connections for leaks. Tighten any loose connections.