GEA Bock HGZ7 - Manual (Page 31)

D
GB
F
E
31
09726-11.2014-DGbF
8| Maintenance
Only use genuine GEA Bock spare parts!
8.3 Recommended spare parts
HGZ7 / ... 1620-4 1860-4 2110-4
Designation Item No. Item No. Item No.
Set of gaskets kit 80197
Valve plate kit
low pressure side LP
80193
Valve plate kit
high pressure side HP
80194
Piston-connecting
rod kit
08995 08996 80112
Piston kit 80042 80048 80106
Connecting rod kit 80306
Oil pump kit 80116
Oil sump heater kit 08426
8.1 Preparation
WARNING Before starting any work on the compressor:
Switch off the compressor and secure it to prevent a restart.
Relieve compressor of system pressure.
Prevent air from infiltrating the system!
After maintenance has been performed:
Connect safety switch.
Evacuate compressor.
Release switch lock.
8.2 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.