Operating instructions
10
Phone +49 4531 509-0
7
Maintenance and service
7.1
Safety during cleaning
Take note of the specifications in the safety data sheet and the general occupational health and
safety rules if degreasers are used for process-related reasons for the cleaning of bearing parts,
unions and other precision parts.
7.2
Maintenance
The maintenance intervals must be defined by the user according to the operating conditions.
The recommendations for the functional checking of the safety valves are to be taken from section 7.2.1
"Inspection and maintenance intervals" in these operating instructions.
7.2.1
Inspection and maintenance intervals
Recommended intervals
Inspection
Interval
Scope
Inspection
During start-up
Visual inspection
of the angle valve for
damage;
of the valving marking for
legibility;
for absence of damage to
the sealing.
Leak-tightness
Union of the valve seat;
If existent, actuation of the lifting
device.
Functional testing
Annually
If present, test of lifting device
including visual inspection.
External inspection
Every 2 years
Function and tightness test
including visual check.
Internal inspection
Every 5 years
Replacement of all sealing
elements by the manufacturer
including functional, tightness
test and visual check.
Hydraulic test
Every 10 years
Replacement of all sealing
elements by the manufacturer
including functional, leak-
tightness, pressure test and
inspection.
