30
9 Maintenance and Cleaning
Diligent maintenance is the prime factor for assuring an error-free and efficient operation of the unit.
Operating personnel can perform these tasks when properly trained.
9.1 Maintenance Schedule
Device
Activity
Interval
Criteria
Tools
Performer
Coolant container Check filling
Weekly
Coolant level min.
at 2/3 of container
Visual inspection
Operating
personnel
Strainer
Clean,
replace if
required
Every 3
months, more
often when
coolant polluted
Strainer
undamaged and
clean
Metric AF 24
wrench, cloth or
vessel
Operating
personnel
Table 10:
Maintenance schedule
9.2 Refilling of Coolant
Since the cooling circuit is an open circuit, evaporation of coolant may occur. Thus, the filling level of the
coolant container has to be checked regularly and coolant might have to be refilled as described on page 23.