Operating instructions
10
Phone +49 4531 509-0
7
M aintenance and service
7.1
Safety during cleaning
Take note of the specifications in the safety data sheet and the general occupational health and
saf ety rules if degreasers are used for process-related reasons for the cleaning of bearing parts,
f ittings and other precision parts.
7.2
Maintenance
The maintenance interv als must be defined by the user according to the operating conditions.
The recommendations f or the functional checking of the diverter valves are to be taken f rom section 7.2.1
"Inspection and maintenance intervals" in these operating instructions.
7.2.1
Inspection and maintenance intervals
Recommended interv als
Description
Interval
Scope
Inspection
During start-up
Visual inspection
of the div erter valve for damage:
of the marking f or legibility;
Leak-tightness
at the gland packing;
between body I and body II;
of the v alve seat;
at the connections;
at the plug screw;
Test the opening and closing f unctions of the
div erter v alve.
Functional testing
annually
Test the opening and closing f unctions of the
div erter v alve including a visual inspection.
External inspection
Ev ery 2 y ears
Check of f unction and leak-tightness including visual
check.
Internal inspection
Ev ery 5 y ears
Replacement of all sealing elements, including a
f unction and leak test as well as a v isual inspection.
Hy draulic testing
Ev ery 10 y ears
Replacement of all sealing elements, including a
f unction and leak test as well as an inspection.
