BUSCH COBRA DS 3010 E, Installation And Maintenance Instructions Manual

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l Make sure that the oil level is in the target circle of the oil sight
glasses
l Make sure that the seals of the filler cap are not damaged and that
they sit properly. Replace them if necessary
l Screw on the filler cap again
WZ (MB) rotary lobes vacuum pump
l Prepare the quantity of oil needed (see “Oil type/quantity”)
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 on the vacuum pump.
l Make sure that the drain plugs have been fitted properly and that
they do not leak
CAUTION
Only fill in oil through the oil filler opening.
l Unscrew the oil filler cap (OFP)
l Fill in oil up to the top of the target circle of the oil sight glass
l Make sure that the oil level lies in the target circle of the oil sight
glasses
Oil level, pump not operating
l
Make sure that the seals of the filler cap are not damaged and that
they sit properly. Replace them if necessary
l
Screw on the filler cap again
Checking the cooling liquid
Checking the level of the cooling liquid
l Make sure that the vacuum pump has been switched off and that
it cannot be switched on again accidentally
l Check the level of the cooling liquid.
u Unscrew purge cap (CLV) on cylinder upper plate.
Cooling liquid level should be just under the plate.
If the level is below:
u Top up with cooling liquid (see “Refilling cooling liquid”)
Refilling cooling liquid
NOTE : Cooling liquid does not normally have to be refilled outside the
recommended change intervals. A drop in the level of the liquid indica-
tes a fault (see “Troubleshooting”).
l Make sure that the vacuum pump has been switched off and that
it cannot be switched on again accidentally
l Unscrew the filler cap (CLF) for the cooling liquid
l Open purge cap (CLV) on cylinder upper plate and purge cap on
cylinder endplate B-side
l Fill in by filler hole until cooling liquid flows by purge cap on
cylinder endplate B-side
l Stop fill in
l Close the purge cap on cylinder endplate B-side
l Fill in again by filler hole until cooling liquid flows by purge cap of
cylinder upper plate
l Close the purge cap of cylinder upper plate
l Screw on the cooling liquid filler cap again
l If liquid has run on to the outside surfaces of the vacuum pump,
wipe it off
Draining the cooling liquid
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 has adjusted to atmospheric
pressure
l Place a container under the drain plug (CLD) for the cooling liquid
l
Unscrew purge cap on cylinder upper plate
l Unscrew purge cap on cylinder endplate B-side
l Unscrew drain plug of cooling liquid
l Drain the cooling liquid
When cooling liquid stops running out:
l
Close the drain plug for the cooling liquid
l Screw purge caps
l Switch on the vacuum pump and let it run for a few seconds
l Make sure that the vacuum pump has been switched off and that
it cannot be switched on again accidentally
l Unscrew again purge cap (CLV) on cylinder upper plate
l Unscrew again purge cap (CLV) on cylinder endplate B-side
l
Unscrew the drain plug for the cooling liquid again and drain the
remaining liquid
l
Make sure that the seal of the drain plug is not damaged and that
it sits properly. Replace it if necessary
l
Screw on the drain plug again
l Screw purge caps
l Dispose of the used cooling liquid according to applicable
environmental protection regulations
Filling in new cooling liquid
l Prepare the quantity of cooling liquid needed (see “Cooling liquid
type/quantity”)
NOTE : The quantity of cooling liquid specified is of informative nature
only. Respect the procedure of filling the cooling liquid.
l Make sure that the drain plug sits properly and does not leak
l Unscrew purge cap on cylinder upper plate
l Unscrew purge cap on cylinder endplate B-side
l
Unscrew the filler cap for the cooling liquid
l Fill in by filler hole until cooling liquid flows by purge cap of
cylinder endplate B-side
l Stop fill in
l Close the purge cap on cylinder endplate B-side
l Fill in again by filler hole until cooling liquid flows by purge cap of
cylinder upper plate
l Close the purge cap on cylinder upper plate
l Make sure that the seal of the filler cap are not damaged and that
they sit properly. Replace them if necessary
l Screw on the filler cap again
l
Wipe cooling liquid that may have run on outside surfaces of
vacuum pump
Maintenance
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