2XZ rotary vane vacuum pump troubleshooting

2XZ rotary vane vacuum pump ultimate vacuum drop:
(1) less fuel tank, the oil level is too low, you can add a clean vacuum pump to the oil standard center.
(2) vacuum pump oil condensable steam pollution, the vacuum drop, the town can be opened to purify or change the new oil.
(3) pump port external pipes, containers, test instrumentation pipes and other leaks, leaks should be found, to eliminate.
(4) Inlet or gas ballast rubber seal improper assembly, damage or aging, should be mediated or changed.
(5) air intake hole congestion, resulting in decreased vacuum. Can first put the oil, remove the fuel tank, release the oil pressure plate, set aside into the oil nozzle, clear the hole.
(6) Serious pollution of the vacuum system, including containers, pipes, etc. should be cleaned.
(7) Spin spring break should be swap.
(8) Rotor, pump or copper lining wear, the gap is too large, should be checked, repaired or replaced.
(9) vacuum pump temperature is too high. This not only reduces the viscosity of the oil, but also increases the vapor pressure and possibly the cracking of the pump oil. Ventilation and cooling should be improved, such as pumping gas temperature is too high, should be pre-cooled and then into the pump.

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