BUSCH MINK MM 1102 BV, Instruction Manual

Page: 13 / 56

MM 1104, 1144, 1102, 1142 B V ATEX-Version, Gas Tight
0870141675 /
190709
page 13
Every 6 Months:
•
Make sure that the housing is free from dust and dirt, clean if
necessary
•
Make sure that the vacuum pump is shut down and locked
against inadvertent start up
•
Remove the acoustic enclosure
Note: Any kind of deposit on the vacuum pump compromises the
explosion safety of the vacuum pump.
•
Remove the protective grid (p) from the cooling air outlet
•
Open the inspection port (e) on the cooling air duct
•
Clean the cooling air duct (compressed air)
Note: Make sure that the foam mats do not get soaked with water
•
Clean the fan cowlings, fan wheels, the ventilation grilles and
cooling fins
Version with ROTEX-coupling:
♦ Remove the drive motor
♦ Measure the dimension B of the coupling element
♦ Replace the coupling element if the measured value < B
min
♦ Remount the drive motor
•
Close the inspection port (e) on the cooling air duct
•
Mount the protective grid (p) on the cooling air outlet
•
Mount the acoustic enclosure
•
Check the electrical connection
•
Make sure that the electrical connection of the temperature
monitoring is undamaged
Version with equipotential bonding of the fan cover:
♦ Make sure that the earth cable on the fan cover is
undamaged (resistance check)
Version with ATEX-inlet air filter (with equipotential bonding):
♦ Make sure that the earth cable on the inlet air filter
housing is undamaged (resistance check)
Version with vacuum relief valve with air filter and equipotential
bonding:
♦
Make sure that the earthing cable on the air filter housing
before the vacuum relief valve is undamaged (resistance
check)
Every Year:
•
Make sure that the vacuum pump is shut down and locked
against inadvertent start up
In case an inlet air filter (l) is installed:
♦ Replace the inlet air filter (l)
•
Check the inlet screen, clean if necessary
Version with vacuum relief valve with inlet air filter:
♦ Replace the inlet air filter of the vacuum relief valve
•
Check the function of the measurement and safety
instrumentation (
➔
page 14: Functional Check of the
Measurement and Safety Instrumentation)
Every 5000 Operating Hours, At the Latest after
2 Years
In case of higher requirements in terms of gas tightness:
♦ Replace the shaft seal rings (Busch service)
Every 10000 Operating Hours, At the Latest after
2 Years
In order to check the pressure relief lines (r):
•
Undo the fittings between the pressure relief lines and the
collecting line (
➔
illustration)
•
Undo the fitting between the collecting line and the gas
discharge (q) and remove the collecting line
•
Blow out the collecting line with pressurised air
•
Pierce the connection for the collection line at the gas
discharge (q)
DANGER
In case the vacuum pump conveyed gas that was
contaminated with foreign materials which are dangerous
to health, harmful material can reside in the pressure relief
lines (r).
Danger to health during blowing out the pressure relief
lines.
Danger to the environment.
Wear personal protective equipment while handling
contaminated pressure relief lines.
Collect deposits from the pressure relief lines and dispose
of them in compliance with applicable regulations.