BUSCH COBRA BC 0101 G, Instruction Manual

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CAUTION
Only fill in oil through the oil filler opening.
CAUTION
Danger of burns when the oil fill plug is open.
Danger of injuries when the oil fill plug is not screwed on properly.
Only unscrew the oil fill plug when the vacuum pump has been
switched off.
The vacuum pump may only be switched on when the oil fill plug is
properly closed and tight.
l Make sure that the vacuum pump has been switched off and that
it cannot be switched on again accidentally
l Carefully lift up the control panel halfway
l
Disconnect the earth connection wire (ECW)
l Disconnect the tool interface cable (TI)
l Let the control panel (CP) on the vacuum pump
l Unscrew the oil fill plug (OFP)
l Fill in oil up to the middle of the oil sight glass
l
Make sure that the oil level lies between the MIN and MAX
markings on the oil sight glass
l
Make sure that the seal of the fill plug is not damaged and that it
sit properly. Replace it if necessary
l
Screw on the fill plug again
l Connect the tool interface cable (TI) and the earth connection wire
(ECW)
l Put the control panel (CP) back at his original place
Checking the colour of the oil
NOTE : The oil must be clear and transparent. A permanent milky
colour is an indication for contamination by foreign bodies. A dark
colour is an indication for oil that has been chemically altered or
contaminated by foreign bodies.
WARNING
Dark colored oil may indicate a hazardous pump condition which
could cause personal injury.
If dark oil similar to the example shown is observed, you have to
contact the Busch Customer Service without delay.
Oil change
DANGER
If the vacuum pump has pumped gases that were contaminated
with foreign bodies that are hazardous to health, the oil is also
contaminated with these foreign bodies.
There is a health hazard when changing contaminated oil.
There is also a danger to the environment.
Wear protective clothing when replacing contaminated oil.
Contaminated oil must be treated specially and must be disposed
of according to applicable regulations.
Draining used oil
NOTE : After switching off the vacuum pump at normal operating
temperature wait no more than 20 minutes before oil is drained.
l Make sure that the vacuum pump has been switched off and that
it cannot be switched on again accidentally
l Make sure that the vacuum pump is vented to atmospheric
pressure
l Put a drain tray underneath the oil drain plug
l
Unscrew the oil drain plug
l Drain the oil
When the oil flow has stopped:
u Refit the oil drain plug
l Switch on the vacuum pump for a few seconds
l
Make sure that the vacuum pump is switched off and cannot
accidentally be switched on again
l
Remove the oil drain plug again and drain any remaining oil
l Carefully unscrew and remove the magnetic plug
l Check that no metal swarf sticks to the magnet of the magnetic
plug, clean if necessary
l Make sure that the sealing washer of the magnetic plug is not
damaged, replace it if necessary
l Refit the magnetic plug and tighten up
l Make sure that the sealing washer on the drain plug is undamaged
and correctly positioned, replace it if necessary
l Refit the oil drain plug and tighten up
Dispose of the used oil in compliance with applicable regulations
CAUTION
Because of wear and tear of the seal, it is recommended to replace
the drain plug whenever the oil is changed.
Filling in new oil
l Prepare the quantity of oil needed (see “Oil type/quantity”)
WARNING
The use of chemically contaminated or polluted oil can lead to haz-
ardous pump conditions which could cause personal injury.
NOTE : The quantity of oil specified in the installation handbook is of
informative nature only. Check the oil level with the help of the oil
sight glass on the vacuum pump.
l Make sure that the drain plug has been fitted properly and that
they do not leak
BC 0101 G
Maintenance
0870704904 (En)
Page 15