Prepare the quantity of oil specified in the table “Oil quantity”
Oil filling on vacuum pump NW 0
09
0 A
Oil filling on vacuum pump WY 0700 D
NOTE:
The quantity of oil specified in the installation handbook is of
informative nature only. Check the oil level with the help of the various
oil sight glasses (OSG 1, 2, 3) on the vacuum pump.
CAUTION
Before you change the type of oil, make sure that the new type is
compatible with the old type. If necessary, flush the vacuum pump.
Unscrew the oil filler cap (OFP)
Fill in oil
Make sure that the oil level lies between the MIN and MAX
markings on the oil sight glasses
Make sure that the seals of the oil filler cap are not damaged.
Replace them if necessary
Screw on the oil filler cap hermetically tight
NOTE
: It is easier to switch on the vacuum pump with cold oil when
the intake line is not closed or when the intake flange is not covered by
a rubber plate.
Start the vacuum pump
If the intake line is equipped with a shut-off device:
Close the shut-off device
If the intake line is not equipped with a shut-off device:
Place a rubber plate on the intake flange
Let the vacuum pump run for a few minutes
Stop the vacuum pump and wait a few minutes
Make sure that the oil level still lies between the MIN and MAX
markings on the oil sight glasses
If the oil level is below the MIN marking:
Fill in more oil
If the intake line is equipped with a shut-off device:
Open the shut-off device
If the intake line is not equipped with a shut-off device:
Remove the rubber plate from the intake flange and connect
the intake line to the intake flange
CAUTION
In case of a vacuum pump filled with oil, make sure that by lifting
the inclination angle of the vacuum pump do not exceed 5° from
the horizontal. In case of too high inclination (>5°), risk of oil leak
within the work area
Make sure before every transport using the appropriate lifting
mean that the inclination of the vacuum pump is less than 5°.
CAUTION
The vacuum pump must remain in a horizontal position when it has
been filled with oil.
Checking the direct cooling
The flow of the cooling water is checked by the flowmeter CWM. The
flowmeter must be connected in such a way that switching-on leads to
a warning at 2 l/min, when the flow drops below 1,5 l/min, the vacuum
pump must be stopped.
Checking the nitrogen supply
The flow of the nitrogen is checked by the flowmeter DGF. The
flowmeter must be connected in such a way that switching-on leads to
an alarm. The alarm limit can be adjusted depending on the type of
process.
Saving the operating parameters
As soon as the vacuum pump is working under normal conditions after
being switched on:
Measure the working current of the motor and save it as reference
value for all future maintenance and repair work
Recommendations on operation
Application
WARNING
The vacuum pump is designed for use under the conditions
specified here.
If these conditions are not met, there is a risk of damage to or total
destruction of the vacuum pump and its components!
The vacuum pump may only be switched on under the specified
conditions.
The COBRA BC vacuum pumps are designed for use in the field of
microelectronics and similar industries.
They can be used to draw in gases and gas mixtures.
Installation and Commissioning
Page 13
BC 0601 G
0870235875
(En)
Oil filling
NW 0090 A
WY 0700 D
Oil quantity [Liter]
0,12
1,4
Oil type
Busch VF 250, Art. No. 0831 131 400 (0,5l
≅
1 kg) (Busch YLC 250 B)
Oil fill plug(OFP)
Oil drain plug
(ODP)
Oil sight glass(OSG)
Oil sight glass(OSG)
Oil fill plug(OFP)
Oil drain plug
(ODP)
Oil sight glass(OSG)
Summary of Contents for COBRA BC 0601 G
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