Troubleshooting Help - Mankenberg M Xtra Rp 840 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 manu-
facturer 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
Leakage on the spring cap
The valve must be
repaired
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>.
The control mechanism (diaphragm, piston or bellows) is defective and
has to be replaced:
Repair necessary, as described further below.
The pretensioned spring must be fully relaxed before a fitting is
dismantled!
To prevent any risk for operating personnel, make sure that this repair
measure is only carried out when the fitting is not under pressure. Take
note of Section 3.3 <Special hazards>.
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danger of fatalities
danger of fatalities
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