Product Manual

Maintenance
CAP-834 37
7.4 Maintenance work
Necessary maintenance work
Necessary maintenance work appears
on the display of the controller as a
warning  Controller documentation.
Observe all safety instructions and precautions as
described in this manual, and in particular section 
2.3 General safety and 7.1 Safety instructions for
maintenance.
7.4.1 Checking for leaks
1.
Close compressed air network-side gate valve
and secure against re-opening.
2.
Open and remove the enclosure panels with the
special wrench.
3.
Check all lines and the base for leaks.
4.
If there is oil in the system, remove it.
5.
Check the connectors of the components and
tighten the screws.
7.4.2 Checking the electrical
connections
Personnel:
 Qualified Electrician
DANGER!
Danger to life from stored charges!
Electric charges may be stored in
electrical components; these charges
may be maintained even after the
system has been switched off and
disconnected from the power supply.
Contact with these components may
result in serious or fatal injury.
- Before working on the specified
components, ensure that they have
been completely disconnected from
the power supply. Allow 10 minutes
to elapse in order to ensure that the
internal capacitors have been fully
discharged.
1.
Close the shut-off valve on the pressure network
side and secure it to prevent it from being
opened again.
2.
Open and remove the enclosure panels with the
special wrench.
3.
Check all electrical connections and tighten if
necessary.
7.4.3 Checking the oil level/topping
up the oil
Checking the oil level
Fig. 28: Inspection glass
1.
Close the shut-off valve on the pressure network
side and secure it to prevent it from being
opened again.
2.
Open and remove the cubicle doors with the
special wrench.
3.
Check the inspection glass (Fig. 28/1) to make
sure it is completely submerged in oil
4.
If the inspection glass is not completely sub-
merged, the oil will need to be topped up.