4Operation
Pay attention to possible faults. Study the instructions carefully.
The items refer to the parts list and service kits section.
4.2 Troubleshooting
NOTE!
Study the maintenance instructions carefully before replacing worn parts - section 5.1 General maintenance.
Problem
Cause/result
Repair
External product leakage Worn or damaged lip
seal and/or O-rin
g
- Replace the seals
- Replace with seals of a
different rubber grade
Internal product leakage - Worn or product-affected
plug seal
- Replace the seal
- Replace with a seal of a
different rubber grade
- Product deposits on
the seat and/or plug
- Frequent cleaning
Water hammer The flow direc
tion is the
same as the closing direction
-Theflowdirec
tion should be
against the cl
osing direction
-Throttleair
release of solenoid in
top unit
4.3 Recommended cleaning
Step 1
Always handle lye and acid with great care.
Caustic danger!
Always use
rubber gloves!
Always use
protective goggles!
Step 2
!
Never touch the valve or the pipelines when sterilising.
Danger of burns!
2405-0011
!
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