Maintenance Schedule - Gardner Denver ESM 30 Original User Manual

8. Service and maintenance
8.3

Maintenance schedule

Danger
When performing control, adjusting and mainte-
nance work, be careful with hot surfaces of
machine parts.
Checks and maintenance work may only be carried
out when the following points are observed:
Press the STOP button on the control panel and
•
wait until the screw compressor unit has come
to rest and the screw compressor unit is
depressurized
The pressure display does no longer indicate
•
pressures < 0.3 bar/4.4 PSI.
Shortly after switching the screw compressor
•
off, the system can contain a low residual
pressure.
Due at x service hours
At the latest after x months
Package A Oil filter cartridge, air filter cartridge
Package B Oil separator element
Package C Wearing parts
Maintenance every 3000 h, although at least each year
Replacement of air filter cartridge
Replacement of oil filter cartridge
Cleaning/replacement of cooling air inlet filter
Oil change when using AEON 3000 or AEON 6000
Safety valve / functional test at least once a year
ESM30-50 with dryer only: Cleaning/replacement of dryer cooling air inlet filter
Maintenance every 6000 h, although at least every 2nd year
Checking/tightening of connecting terminals in the switch cabinet/ and checking of the
"control transformer" setting
Checking/tightening screw connections
General maintenance/cleaning
Oil change when using AEON 9000
Oil analysis when using AEON 9000
Replacement of oil fine separator cartridge
Replacement of lubrication cartridges
These maintenance intervals must be observed!

x For your own benefit, put a cross on the servicing schedule against maintenance work when performed.
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40
The screw compressor unit must therefore be
•
depressorized prior to any maintenance work by
slowly opening the lock (oil filler cap) with
integral vents
The customer-installed main switch is set to "O"
•
(OFF) and locked off
Warning:
•
Electrical voltage: Only work on the screw
compressor unit when it is disconnected.
Intervals are valid for normal industrial environments
and operating conditions. When in doubt, check the oil
change intervals by carrying out an oil analysis.
If necessary, reduce the oil change intervals and
cleaning intervals in the event of heavy soiling.
For order numbers see the spare parts list.
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