BUSCH MINK MM 1102 BV, Instruction Manual

Page: 18 / 56

MM 1104, 1144, 1102, 1142 B V ATEX-Version, Gas Tight
page 18
0870141675 /
190709
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
precisely defined procedure; therefore the
coupling element must be replaced by the
Busch service only)
Low oil level in the synchronising gear The synchronising gear is leaky
Repair the vacuum pump (Busch service)
Synchronising gear damaged due to operation
with low oil level Repair the vacuum pump (Busch service)
There is an indication on the control panel /
in the control room that the temperature
monitoring has tripped (permissible
temperature at the outlet of the stage has
been exceeded)
The vacuum pump is shut down
Insufficient air ventilation Make sure that the cooling of the vacuum
pump is not impended 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
Ambient temperature too high Observe the permitted ambient temperatures
Temperature of the inlet gas too high Observe the permitted temperatures for the
inlet gas
Mains frequency or voltage outside tolerance
range Provide a more stable power supply
Partial clogging of filters or screens
Partial clogging in the suction, discharge or
pressure line
Remove the clogging
Long suction, discharge or pressure line with
too small diameter Use larger diameter