Ulvac GHD-031A Instruction Manual page 28

4.6
Magnet coupling
Caution
This vacuum pump is use magnet coupling. Malfunction occurs during pump driving in
the pump inside. Magnet coupling transmitting the power of the motor comes off. The
pump stops, and the driving sound of the motor grows big. The main body of pump stops,
but the motor continues turning.
Please ask order ahead or us for check repair by all means.
4.7
Oil mist trap (Option)
An oil mist trap can be installed in order to remove oil mist from the pump. As such
an oil mist trap, model OMT-050A is available.
Remove the standard outlet port from the outlet port of the pump and install an oil
mist trap instead. The oil mist trap not only prevents oil mist generation but also
reduces exhaust noise. For details, refer to the instruction manual for the oil mist
trap.
4.8
Restriction on operation when the oil mist trap is installed
When using the oil mist trap, there are some restrictions on operation.
When the filter is clogged, replace it.
Warning
Be sure to observe the restrictions on operation when the oil mist trap is installed.
There is a risk of explosion. When the filter is clogged, replace it.
Pump internal pressure rises, and an oil level gauge jumps out, and there is a threat
that a motor becomes the overload. Pump internal pressure rises, and an oil level
gauge jumps out.
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