Troubleshooting Help - Mankenberg EB1.12 Serie Betriebsanleitung

10 Troubleshooting help

Be sure to observe Section 3 <Safety instructions> when rectifying faults.
Spare parts must be ordered with all the details on the nameplate.
Only original parts from the manufacturer MANKENBERG may be installed.
MANKENBERG experts are available to help in rectifying faults as quickly as possible.
See Section 11 <Further information> for the addresses.
If functional or corrosion damage is detected during maintenance or after a fault:
consult MANKENBERG to find out whether a more suitable fitting is available or whether
the damaged part can be supplied in a better-suited material.
note
Type of fault
Leakage at a connection
body parts (flange or clamp
ring):
reseal connection
Functional fault:
leckage of the seat drains li-
quid from the bleeding pipe
Clean and check functio-
nal parts
Action
Tighten the screws clockwise (tighten flange screws crosswise).
If the screws of the body connection have to be loosened or removed
(= unscrewing in the anticlockwise direction):
To prevent any risk for operating personnel, make sure that this repair
measure is only carried out on a section of pipe that is not under pressure.
Take note of Section 3.3 <Special hazards> and then Section 5 <Installati-
on in the pipeline>.
Possible reasons:
- A foreign object may be jammed in the seat and be preventing
proper sealing.
- The lever system is moving to heavy due to dirt or corrosion
- The float is to heavy due to deposits
Cleaning is necessary: The bleeding and venting valve must be disassembled.
To prevent any risk for operating personnel, make sure that this repair
measure is only carried out on a valve that is not under pressure. Take
note of Section 3.3 <Special hazards>.
When the armature is pressureless, disassemble the bleeding and venting
valve by loosening the flange or clamp connection, take out and clean float
and lever system. Here all parts of the maintenance set should be rene-
wed.
After that, reassemble the armature, make sure that float and levers are
moving easily
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danger of fatalities
danger of fatalities
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