6.5 Checking the metal mesh at the inlet port
The suction inlet might be clogged by the dust contained in the gas breathed in from the vacuum
chamber and thus the pump performance might be impaired. If the metal mesh is dirty, please wash
it. If it is damaged, replace it.
There will be welding spatter drops off in the pipe particularly at the beginning of the system start. Be
fully caution.
6.6 Pump stopping and storage
CAUTION
Ensure first close the vacuum valve then open the leak valve last stop the pump. If failed in
following this procedure, the pump cylinder will fill with the oil in several minutes, which might
make difficult to restart operation or pump damaged.
Further the oil might accidentally flow back to the vacuum tank.
If failed in closing the vacuum valve, the vacuum might leak from the exhaust side through the
pump unit.
1.
When operation finished, first close the vacuum valve which is on the inlet, then stop the pump.
2.
After pump stopped, open the vent valve to restore pump pressure to atmospheric pressure.
3.
Ambient temperature, humidity and height for storage: -10 to 50°C, less than95%RH (no freeze,
no condensation), lower than el. 1000m. It shall be in house, no direct sun beam. The pump shall
not be stacked, inverted or rollover.
4.
There shall be no corrosive or explosive gas around the pump, and keep clean to prevent debris
into the pump. If the pump does not operate for a long time, seal the inlet and outlet port to
prevent dust, dirt into the pump.
5.
If the pump does not operate for a long time, condensable gas will be adsorbed in the pump
cylinder or sealing parts. You can extend pumping time to exhaust the gas before the pump
returning to regular running.
6.
Long term storage of the vacuum pump without operation might possibly cause trouble in
operation because of rust. If you kept the pump long time without operating it, ask a closest
service center or contact with us for the check.
7 Disposal
Make sure to keep in compliance with the laws and regulations established by the local governments
to dispose the vacuum pump. You should ask the dedicated disposal agency for the disposal
particularly if the pump has exhausted any toxic gas. For the disposal of pump oil, follow the
instructions in “Material Safety Data Sheet”.
Note that you are requested to bear the cost and charges relating to the disposal.
