Maintenance; Preparation; Work To Be Carried Out - Danfoss BOCK FK20 Operating Manual

6| Maintenance

6.1 Preparation

6.2 Work to be carried out

Oil change: In principle, an oil change is not a mandatory requirement, if the equipment is correctly
manufactured and properly operated. Based on decades of experience, we recommend however that
the following oil change/service work is carried out:
• Initial oil change during the first maintenance of the vehicle (at the latest after one year)
• Then after every 5,000 operating hours, at the latest however after 3 years. Also clean the oil filter.
• An oil change is also necessary, if the oil is very cloudy and dark, or after repairs have been carried
out on the compressor.
D
Emptying the shaft seal oil reservoir: As required depending on use, but at the latest after 1 year
GB
or approx. 1,400 operating hours
F
Where requirements are higher during use (frequent operation at the limits of application, or
I
in hotlands with over +40 °C ambient temperature, or in the case of deep freezing), the following
requirements must be observed:
TR
• Initial oil change during the first maintenance of the vehicle (at the latest after one year)
• Then an oil change after every 2,000 operating hours, at the latest however after two years. Also
clean the oil filter.
Preventive maintenance
The above requirements for higher use applications also apply in the case of preventive maintenance.
The shaft seal must also be changed after 3 years.
Regular inspections (at least annually): Checks to be carried out on oil level in the oil sight glass,
oil fill level of the shaft seal in the oil drain hose, absence of leaks in the compressor, running noise,
vibrations, pressures, temperatures, and functioning of auxiliary devices such as the capacity control.
16 | AQ451838788471en-000201
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.
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