BUSCH R5 RE 0016 B, Installation And Operating Instructions Manual

Page: 17 / 24

Version with three-phase motor:
Version with DC-motor:
The vacuum pump runs in the wrong direction
Verification and rectification
Ú
page 6: Instal-
lation and Commissioning
Standstill over several weeks or months Let the vacuum pump run warm with inlet
closed
Improper oil quantity, unsuitable oil type Use the proper quantity of one of the recom-
mended oils
(
Ú
page 20: Oil change:
Ú
page 9: Mainte-
nance)
No oil change over extended period of time Perform oil change incl. flushing
(
Ú
page 9: Maintenance)
The exhaust filter is clogged and appears black
from burnt oil Flush the vacuum pump
Replace the exhaust filter
Fill in new oil
(
Ú
page 9: Maintenance)
In case the oil life is too short: use oil with
better heat resistance (
Ú
page 20: Oil) or ret-
rofit cooling
Foreign objects in the vacuum pump
Broken vanes (i)
Stuck bearings
Repair the vacuum pump (Busch service)
The vacuum pump runs very noisily Defective bearings Repair the vacuum pump (Busch service)
Worn coupling element Replace the coupling element
(in order not to compromise the explosion
safety of the vacuum pump the coupling must
be adjusted and measured according to a pre-
cisely defined procedure. Therefore the cou-
pling element must be replaced by Busch
service only)
Stuck vanes (i) Repair the vacuum pump (Busch service)
Use only approved oils (
Ú
page 20: Oil) and
change more frequently
The vacuum pump runs very hot
(the oil sump temperature shall not exceed
100 °C)
Insufficient air ventilation Make sure that the cooling of the vacuum
pump is not impeded by dust/dirt
Clean the fan cowlings, the fan wheels, the
ventilation grilles and the cooling fins
Install the vacuum pump in a narrow space
only if sufficient ventilation is ensured
On a vacuum pump with oil-cooler: clean the
intermediate spaces of the finned tube
Ambient temperature too high Observe the permitted ambient temperatures
Temperature of the inlet gas too high Observe the permitted temperatures for the
inlet gas
The exhaust filter is partially clogged Replace the exhaust filter
Not enough oil in the reservoir Top up oil
Oil burnt from overheating Flush the vacuum pump
Replace the exhaust filter
Fill in new oil
(
Ú
page 9: Maintenance)
In case the oil life is too short: use oil with
better heat resistance (
Ú
page 20: Oil) or ret-
rofit cooling
Mains frequency or voltage outside tolerance
range Provide a more stable power supply
Troubleshooting
RE 0016 B / RE 0040 B / RE 0063 B with safety valve, without motor
0870142823
page 17