5Operation and Maintenance ManualQTS Series Twin Screw Positive Displacement PumpQTS-M04SA FE T YIMPORTANT: Read and understand this manual before installation, operation or maintenance of thepump. Installation, operation and maintenance in combination with inappropriate unsafe practices cancause serious individual risks or death, damage to the environment and the pump itself. Equipmentdamage caused by user negligence will void the pump warranty.There are safety symbols used in this manual to identify security situations and how to avoid them:CAUTION: Hazards or unsafe practices that may result in minor injuries or damage toequipment or property.DANGER: A situation in which there is a possibility of a potentially harmful incident;hazards or unsafe practices that could result in serious injury or death.ELECTRICAL HAZARD: Risk caused by direct electrical energy contact, burns,electrical shocks, electric arc and fire or explosions caused directly by electricity.ROTATING PARTS: Risks from exposure of personnel to rotating parts that may bedangerous and cause injuries, contact with these parts when carried out withoutemploying security practices such as signs, guards, approach alarms, etc.TEMPERATURE: The main risk is associated with direct contact of hot or coldsources.Operate the pump only in accordance with its specific use mentioned in the data sheet andconsidering the risk and safety issues described in this manual.In case of malfunction, the pump must be switched off immediately and the responsible staff mustattend those malfunctions. Do not allow access to the pump to unqualified personnel. Pleasecontact your distributor.Avoid operating procedures that endanger the personnel and/or people who are not directlyinvolved in the process. The user must ensure that authorized and qualified personnel carry outthe relevant activities of maintenance procedures, operation and installation.Provide safety devices for any of the following cases and ensure their proper performance:• If conditions of heat, cold and moving parts are presented in place, provide protectionagainst accidental contact with the pump. Protection must not be removed during theoperation. Guards are recommended.• To avoid electric shocks, ground all electrical systems properly.• Provide adequate pressure relief devices to prevent excessive pressure on the dischargeside of the pump between the pump and the first stop device.• Always follow local safety guidelines.SAFETY