7 | Maintenance
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Maintenance work Interval
Normal application Harsh application
• Check the oil level, see Oil Level Inspec-
tion [►16].
Daily
• Check the vacuum pump for oil leaks - in
case of leaks have the machine repaired
(contact Busch).
• Drain drip legs on inlet and exhaust piping
In case of an inlet filter being installed:
• Check the inlet filter cartridge, replace if
necessary.
Monthly
• Change the oil*, the oil filter* (OF) and
the exhaust filters (EF).
Max. after 4000
hours, at the latest
after 1 year
Max. after 2000
hours, at the latest
after 6 months
• Clean the vacuum pump from dust and
dirt.
In case of a gas ballast valve (GB) being in-
stalled:
• Clean the gas ballast valve.
If the vacuum pump is equipped with an air-
oil heat exchanger (AHE):
• Check and/or clean the air-oil heat ex-
changer.
If the vacuum pump is equipped with a wa-
ter cooling system:
• Check and/or clean the water cooling sys-
tem.
Every 6 months
• Contact Busch for an inspection.
If required, overhaul the machine.
Every 5 years
* Service interval for synthetic oil, shorten the interval when using mineral oil, contact
Busch Service
7.2 Oil Level Inspection
• Shut down the vacuum pump.
• When the vacuum pump is stopped, wait 1 minute before checking the oil level.
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