Checking Intervals For Pressure Vessel And Electrical Installation; Maintenance Instructions And Lubricant Recommendations For Fixed Compressors - Gardner Denver L90 7.5A V4 Translation Of The Original Operating Instructions

3. Reset the fault message.
To do this press the button [RESET] on the tab
"Fault log" in the electronic control unit.
– The "Fault log" tab stops flashing.
8.8.11 Checking intervals for pressure
vessel and electrical installation
Pressure vessel
After five years, a person qualified to do so must
check the pressure vessel internally in accordance
with Pressure Equipment Directive 97/23/EC.
After ten years, an appointed body must subject
the pressure vessel to a strength test in accor-
dance with Pressure Equipment Directive 97/23/
EC.
Electrical installation
After four years, or after each instance of interfer-
ence, the electrical installation is to be subjected
to an inspection by an electrical specialist.
If shorter checking intervals apply in your territory,
please adhere to them.
8.8.12 Maintenance instructions and lu-
bricant recommendations for fixed
compressors
Lubricant recommendation
Please note that proper lubrication significantly in-
creases the service life of your compressor sys-
tem.
In accordance with applicable accident prevention
regulations, lubrication oils whose properties meet
the intended operating conditions are to be used.
Please refrain from mixing different lubrication oils.
This also means oil must be completely drained
from the oil circuit when changing oil types.
The oil change intervals stated in the mainte-
nance plan are to be halved when final compres-
sion temperatures are continuously higher than
90°C/195°F.
A precise specification of the oil change intervals
should be defined according to the operating con-
ditions that actually exist by carrying out oil sam-
pling and analysis
The following types of oil are to be used:
European version
FLUIDFORCE SCREW WARRANTY LUBRI-
CANT