Star connection (high voltage):
Double star connection, multi-voltage motor (low voltage):
Star connection, multi-voltage motor (high voltage):
CAUTION
_a
Operation in the wrong direction of rotation can destroy the
vacuum pump in short time.
Prior to starting-up it must be made sure that the vacuum pump is
operated in the proper direction.
Version with three-phase motor:
◆
Determine the intended direction of rotation with the arrow
(a) (stuck on or cast)
◆
“Bump” the drive motor
◆
Watch the fan wheel of the drive motor and determine the di-
rection of rotation just before the fan wheel stops
If the rotation must be changed:
◆
Switch any two of the drive motor wires (three-phase motor)
Connecting Lines/Pipes
In case the suction line is equipped with a shut-off valve:
◆
Connect the suction line
●
Make sure that the gas discharge (g) is open
●
Make sure that all provided covers, guards, hoods etc. are
mounted
●
Make sure that cooling air inlets and outlets are not covered or ob-
structed and that the cooling air flow is not affected adversely in
any other way
Filling Oil
In case the vacuum pump was treated with conservation oil:
◆
Drain the remainders of conservation oil
CAUTION
_a
The vacuum pump is shipped without oil.
Operation without oil will ruin the vacuum pump in short time.
Prior to commissioning it must be made positively sure that oil is
filled in.
The vacuum pump is delivered without oil (oil specification
Ú
page 18:
Oil).
●
Keep approx. 0.4 litres oil acc. to the table Oil (
Ú
page 18) ready
Note: The amount given in these operating instructions is a guide. The
sight glass (j) indicates the actual amount to be filled in.
CAUTION
_a
Filling oil through the suction connection (h) will result in breakage
of the vanes and destruction of the vacuum pump.
Oil may be filled through the filling port (d) only.
CAUTION
_a
During operation the oil separator is filled with hot, pressurised oil
mist.
Risk of injury from hot oil mist with open filling port.
Risk of injury if a loosely inserted filling plug (d) is ejected.
Remove the filling plug (d) only if the vacuum pump is stopped.
The vacuum pump must only be operated with the filling plug (d)
firmly inserted.
●
Remove the filling plug (d)
●
Fill in approx. 0.4 litres of oil
●
Make sure that the level is at about 75 percent of the sight glass (j)
●
Make sure that the seal ring is inserted into the filling plug (d) and
undamaged, replace if necessary
●
Firmly reinsert the filling plug (d) together with the seal ring
Note
: Starting the vacuum pump with cold oil is made easier when at
this very moment the suction line is neither closed nor covered with a
rubber mat.
●
Switch on the vacuum pump
In case the suction line is equipped with a shut-off valve:
◆
Close the shut-off valve
In case the suction line is not equipped with a shut-off valve:
◆
Cover the suction connection (h) with a piece of rubber mat
●
Let the vacuum pump run for a few minutes
●
Shut down the vacuum pump and wait a few minutes
●
Check that the level is between 50 percent and 75 percent of the
sight glass (j)
In case the level has dropped below 50 percent of the sight glass (j):
◆
Top-up oil
In case the suction line is equipped with a shut-off valve:
◆
Open the shut-off valve
In case the suction line is not equipped with a shut-off valve:
◆
Remove the piece of rubber mat and connect the suction line
Recording of Operational Parameters
As soon as the vacuum pump is operated under normal operating
conditions:
7
