A. NOTIFICATIONS:
- Make sure to fill in the pump, install dry running protection, overheat the pump stator, overheat protection for the motor …
- Overload protection device for pump, or install by pass line, overpressure safety valve installation
- Electrical enclosures have protection devices such as thermal relays, fuses and stable supply voltage (380V, 3 phases, frequency 50Hz). Grounding wire for motor protection when leakage, electric wire must meet the standard, suitable for the motor capacity
- The rotary direction of the screw pump can be run two-way depending on how the power to the motor and the machine
- Install the inlet and outlet pipes according to the standards of the pump, soft coupling, anti-vibration for the pump, restrict the intake air, pump body, …
- Do not operate the screw pump when no fluid flow, or the discharge port is closed
- When removing and installing the coupling, pump seals must follow the instruction book for each type of joint, pump type
- The diameter of the fluid hose should not be less than the suction throat of the pump, greater than 1 level
- For solid particles larger than the allowable diameter of each pump, the Y filter must be fitted
B. PRESERVATION AND USAGE OF PUMPS:
- If the pump is not used for a long time, check, clean it with clean water
- Make sure the bolts are firmly fixed such as flanges, couplings, pump feet, pump frames, motors, piping, and mounting brackets.
- Pump has to be placed in the proper position, shielded, well protected, suitable environmental temperature and do not to direct the sunlight
- Install suction and discharge valves on the pump
- Periodically change the lubricant for the gearbox according to the instructions
- Note that, only people that is acknowledgement allowed to check, maintenance, assembly pump. But still follow the instructions.
- After use, the pump must be cleaned in the condition of the machine off and break off the power supply
- When removing stator must carefully guard the rotor of the pump to prevent rotor fall
- Compliance with labor protection (protective clothing, safety glasses, gloves) when installing, inspecting, testing