GEA Bock HGX2 CO2 T - Manual (Page 22)

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7.1 Preparation
7 | Maintenance
WARNING! Before starting any work on the compressor:
Switch off the compressor and secure it to prevent a restart.
Close all shut-off valves.
Relieve compressor of system pressure.
Prevent air from infiltrating the system!
After maintenance has been performed:
Connect safety switch.
Evacuate compressor.
Open all shut-off valves.
Function of the safety devices guarantee.
Release switch-on lock..
HGX2/ ... CO
2
T 70-4 90-4 110-4 130-4
Designation Item No. Item No. Item No. Item No.
Set of gaskets 80538
Set of valve plate kit 80532 80533
Set of piston/connecting rod 80508 80528 80529
Set of connecting rod 80520
Only use genuine GEA Bock spare parts!
7.3 Spare part recommendation
7.2 Work to be carried out
In order to guarantee optimum operational reliability and service life of the compressor,
we recommend
carrying out servicing and inspection work at regular intervals:
Oil change:
- not mandatory for factory-produced series systems.
- for field installations or when operating near the application limit: for the first time after 100
to 200 operating hours, then approx. every 3 years or 10,000 - 12,000 operating hours.
Dispose of used oil according to the regulations; observe national regulations.
Annual checks: Oil level, leak tightness, running noises, pressures, temperatures, function of
auxiliary devices such as oil sump heater, pressure switch.
Available accessories can be found on the Internet at www.gea.com
7.4 Accessories
WARNING! The selected duration for pressure relief must be long enough to
prevent the formation of dry or solid ice that can close the outlet
port and stop all the CO
2
from being discharged. Otherwise, there is
a risk of the compressor remaining in a hazardous operating
pressure.