1. Installation
The pump should be installed horizontally. Since the pump operates with almost no vibration, it generally does not need to be fixed. The pump's bottom shock-absorbing pads have metric threaded holes for securing the pump. Do not push or pull the pump on the ground to avoid damaging the shock-absorbing pads.
To ensure good pump cooling and facilitate maintenance, it is recommended to leave a 0.4m gap between the pump's air inlet and exhaust outlet. A base with an oil drain pan can be installed for easy oil draining.
The pump is shipped without oil. After installation, slowly add the specified vacuum pump oil (see Maintenance and Repair 5.1) through the oil filler port to 3/4 of the oil level.
2. Electrical Connection
Electrical wiring must be performed by a qualified electrician. Appropriate motor overload protection devices should be used.
When matching the XD-010/020 with a single-phase motor, the user must ensure that a dedicated circuit is used with 15A sheathed wire, plug, and socket, and the wiring method strictly follows the diagram on the motor nameplate.
After wiring a three-phase asynchronous motor, the motor's rotation direction must be checked. The correct rotation direction is: when viewed from the fan end at the rear of the motor, the motor shaft should rotate counterclockwise.
To check the rotation direction, the air intake should be open or completely covered with a rubber sheet (at least 4mm thick). Turn on the power for 2-3 seconds. If the rotation is correct, you will feel a strong suction at the air intake or the rubber sheet will be firmly held in place. If the rotation is reversed, swap any two of the three power wires.Note: Prolonged operation of the pump in the wrong rotation direction will damage it.
3. System Connection The system connections for both internal and external vacuum packaging machines are the same. The cross-sectional dimension of the inlet pipe should not be smaller than the suction port size, and the connection length should be as short as possible. Use Loctite 515 or Teflon for vacuum sealing of threaded connections.
If the gas being pumped contains dust, impurities, and a small amount of water vapor, a vacuum filter must be installed at the pump inlet. If necessary, an exhaust pipe can be connected; the exhaust pipe should be angled downwards.
4. Start-up The vacuum pump can be started after confirming the oil level. For the first start-up and after the first wiring change, the motor rotation direction must be checked before starting the vacuum pump.
5. Operation Before normal operation, it is advisable to close the inlet pipe valve and allow the pump to run at its limit pressure for at least 15 minutes. This will effectively remove water vapor from the gas. The electric motor should not be started frequently. For intermittent cyclic operation, it is recommended to install a solenoid valve on the pump's inlet pipe. Close the solenoid valve during non-operational periods to allow the pump to operate at its maximum pressure. This minimizes the power consumption of the electric motor while effectively protecting the vacuum pump.
Note: ① During normal pump operation, the surface temperature of the oil separator, pump body, pump cover, etc., will exceed 70℃. Do not touch them with your hands.
② Do not add oil while the pump is running.
6. Ultimate Pressure Measurement The ultimate pressure should be measured directly at the pump's inlet using a compression vacuum gauge. For first-time use, use after a long period of storage, and use after changing the oil, the inlet should be closed and the pump run for at least one hour to allow it to reach operating temperature and for the pump oil to be fully degassed before measuring the ultimate pressure.
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