Maintenance | 7
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If the machine is equipped with a barrier gas system:
• Close the barrier gas supply.
• Vent the connected lines to atmospheric pressure.
If necessary:
• Disconnect all connections.
7.1 Maintenance Schedule
The maintenance intervals depend very much on the individual operating conditions. The
intervals given below are desired to be considered as starting values which should be
shortened or extended as appropriate. Particularly harsh applications or heavy duty oper-
ation, such as high dust loads in the environment or in the process gas, other contamina-
tion or ingress of process material, can make it necessary to shorten the maintenance in-
tervals significantly.
Interval
Maintenance work
Monthly
• Check the oil level, see
If the machine is equipped with a plate heat exchanger
(PHE):
• Check the cooling liquid level, see
• Check the machine for oil leaks - in case of leaks have
the machine repaired (contact Busch).
Yearly
• Carry out a visual inspection and clean the machine
from dust and dirt.
• Check the electrical connections and the monitoring
devices.
Yearly
In case of those accessories
being installed.
• Check the filter of the gas ballast valve (GB), clean it
if necessary.
• Check the silence (SI) and clean it if necessary.
Every 5000 hours, at the latest
after 1 year
• Change the oil of the gear and bearing housings
• Clean the magnetic plugs (MP).
Every 16000 hours, at the
latest after 4 years
• Have a major overhaul on the machine (contact
Busch).
Depending on operating con-
ditions and the contamination
level
• Check the flame arresters (ATEX category 1G(i) only)
• Clean them or replace them if necessary, see
.
7.2 Oil Level Inspection
• Shut down the machine.
• When the machine is stopped, wait 1 minute before checking the oil level.
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
Oil sight glass on motor side
Oil sight glass on suction side
.
Summary of Contents for COBRA ATEX NC 0100-0300 B
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