KAESER SK 22, Operating Manual

Page: 54 / 132

To be checked See
chapter
Confirmed?
➤ Is the machine firmly anchored to the floor?
(Option H1)
6.6.1
➤ Are door interlock switches aligned and their function checked? 7.9
➤ Are all access doors closed and latched and removable panels in
place and secured?
–
Tab. 42 Installation conditions checklist
7.4 Setting the overload protection cut-out
Electrical diagram 13.4 gives the location of the overload relay.
With star-delta starting, the phase current is fed via the overload relay. This phase current is 0.58-
times the rated motor current.
To prevent the overload relay being triggered by voltage fluctuations, temperature influences or
component tolerances, the setting can be higher than the arithmetical phase current.
➤ Check the settings of the overload relay.
The overload relay shuts the machine down despite being correctly set?
➤ Contact the authorised KAESER SERVICE.
7.5 Pouring cooling oil into the airend
Before starting the compressor for the very first time and before re-starting after a shutdown period
of more than 3 months it is necessary to manually add a quantity of cooling oil into the airend. In
order to avoid that the cooling oil exceeds the permissible level, drain the required quantity from
the de-pressurised oil separator tank.
Chapter 10.16 provides detailed information on how to drain cooling oil from the oil separator tank.
Material 0.5 l cooling oil
Precondition Cut-off the electrical power supply via the power supply isolating device,
ensure that the device is locked off,
verify the absence of any voltage.
Fig. 11 Charging hole
1
Screw plug
2
Airend
7 Initial Start-up
7.4 Setting the overload protection cut-out
44
Operating Manual Rotary screw compressor
SK
901848 21 E