Maintenance Cleanfit CPA871
48 Endress+Hauser
8 Maintenance
L
WARNING
Risk of injury if medium escapes
‣
Before each maintenance task, ensure that the process pipe is empty and rinsed.
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Move the assembly to service position.
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The assembly may contain residual medium; please rinse thoroughly before commencing
work.
The assembly drive is maintenance-free. It is not possible to carry out maintenance or
repair work on the drive.
8.1 Maintenance schedule
A maintenance log is recommended to adapt to the correct maintenance intervals.
The specified intervals serve as a guide. For harsh process or ambient conditions, it is
recommended that the interval be shortened accordingly. Cleaning intervals for the
sensor and assembly are dependent on the medium.
Following cleaning or replacement, apply a generous layer of Klüber XPC0003-V+R8
grease to the seals.
Interval Maintenance measures
During initial commissioning / when putting
back into service after maintenance
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Perform an initial inspection.
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Check the locking mechanism (no movement without a sensor).
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Check the stop bolt (no movement without compressed air).
Regularly Visual inspection:
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Check assembly retraction.
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Clean and lubricate the retraction pipe depending on the fouling.
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Check that all connections are sealed tightly.
Check for tightness:
• Rinse lines
• Process connection
• Compressed air hoses (pneumatic drive).
Clean the process seal using the sealing water function:
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Close the rinse chamber outlet.
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Rinse in the process in order to clean the seals.
Monthly
or after 500 strokes (whichever comes first)
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Check that the process seal is intact.
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Replace the seals if medium is escaping.
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Check the leakage hole: remove the screw for this purpose.
Does medium escape from the leakage hole when the assembly is
moving? This can be an indicator of faulty inner O-rings in the service
chamber.
1. Check the leakage hole of the service chamber.
2. Clean the assembly thoroughly.
3. Replace seals in contact with the medium.
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