Instructions Manual
－
Multiple Roots Type Dry Pump GR60/90/180
YK09-0023-DI-003-02
24
4.2 Operation Start
(1) Check that piping work and wiring connection work are completed.
(2) Oil Level Check ("3.2 Oil Filling")
For both the two oil level gauges, check that the oil level is between the upper and lower level
lines. After the operation, the oil level decreases by approx. 1 cm. If it is at a lower limit level,
supply oil.
(3) Cooling water (See "3.6 Cooling Water Piping.")
Open the feed valve for cooling water and, while checking the flow meter, adjust the flow rate
so that a specified amount of cooling water flows.
(4) Direction of rotation check (See "3.3 Intake Pipe" and "3.7 Electric Connection")
Operate the pump for approx. 2 to 3 seconds and check the motor's direction of rotation with
the fun at the motor end. If the motor correctly rotates (clockwise when viewed from the motor),
the pressure decreases. If the motor rotates in the reverse direction, the power phases are
opposite from each other. Replace the two of the three connection wires in Fig. 6.
(5) After the completion of steps (1) to (4), start to operate the pump.
(6) Nitrogen gas (See "3.5 Nitrogen Gas Pipe.")
Adjust the pressure of nitrogen gas during the operation.
1) Open the valve for nitrogen gas to apply pressure to the nitrogen gas pipe.
2) The regulator is locked at the time of delivery. Pull the knob until it "clicks" to unlock, and
then adjust the pump pressure between 0.05 and 0.10 MPa (Gauge pressure). In addition,
the flow rate of nitrogen gas to seal the shaft is controlled by a fixed orifice. 5.0 SLM flows
by adjusting the pressure between 0.05 and 0.10 MPa. No need to adjust the flow rate.
During the operation, do not touch the vacuum pump body, motor, and
pipes since they are subjected to high temperature. If your body comes
into contact with them, you may get burned. Take appropriate
protective measures as necessary to avoid surface contact.
DANGER
Regulator
Pressure meter
Pressure drop
Pressure increase
Содержание GR60
Страница 2: ......
Страница 12: ...Instructions Manual Multiple Roots Type Dry Pump GR60 90 180 YK09 0023 DI 003 02 x GR60 GR90 GR180...
Страница 27: ...Instructions Manual Multiple Roots Type Dry Pump GR60 90 180 YK09 0023 DI 003 02 9 GR90...
Страница 28: ...Instructions Manual Multiple Roots Type Dry Pump GR60 90 180 YK09 0023 DI 003 02 10 GR180...
