Ulvac GR60, Инструкция по эксплуатации

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Instructions Manual － Multiple Roots Type Dry Pump GR60/90/180
YK09-0023-DI-003-02
2
1.1.3 Electric shock
Factor How to avoid / Measure
You get an electric shock by
touching a live part of the motor.
(1) Before establishing electrical connections, be sure
to turn off the power. Be sure to connect to ground.
(2) Be sure to close the cover of the motor terminal
box first and then operate the pump. Do not open
the cover during the operation.
(3) Before inspection/relocation, be sure to turn off the
power.
(4) Do not put your hands, any thin rods, etc. in the
opening of the motor.
The motor terminal burns out.
Securely tighten the terminal. Check the tightened
conditions once a month. (See 3.7 Electric
Connection.)
1.1.4 High temperature
Factor How to avoid / Measure
Getting burned at high
temperature part
(1) During the operation, do not touch the vacuum
pump body, motor, and pipes since they are
subjected to high temperature.
(2) For a while after the operation stops, do not touch
the vacuum pump, motor, and pipes since they are
subjected to high temperature. Supply cooling
water until the pump temperature becomes low.
1.1.5 Rupture
Factor How to avoid / Measure
The inner pressure in the cooling
water pipes increases and the
pipes rupture.
(2) When removing the cooling water joints
immediately after the pump operation stops for a
model with hermetically sealed connections, the
cooling water remaining in the pump may boil with
an inner pressure increase, causing damage to the
cooling water pipes. Supply cooling water until the
pump temperature becomes low.
(4) This product uses vinyl tubes as cooling water
pipes. If the cooling water inlet or outlet is sealed
and compressed air is supplied from the
non-sealed port, the cooling water pipes may not
be able to withstand the load of the compressed air
and be broken. When supplying compressed air
into the cooling water pipes, be sure to do that with
one port open.
WARNING
CAUTION
CAUTION