Further Information - Mankenberg M Xtra Rp 840 Betriebsanleitung

Functional fault
Leakage at the seat means
the set inlet or outlet pres-
sure is not correctly regula-
ted:
Clean the functional parts
Functional fault
Cleaning alone – see abo-
ve – cannot rectify the fault:
The fitting must be repaired

11 Further information

You can obtain these instructions, the MANKENBERG data sheets quoted as well as further
information – including English language versions – from the following addresses:
Mankenberg GmbH
Spenglerstrasse 99
D-23556 Lübeck
A foreign object may be jammed in the seat and be preventing proper 1se-
aling:
- fully release the tension on the DM pressure-reducing valve spring
- fully release the tension on a UV backpressure regulator spring
- on a vacuum control valve, observe the above remarks according to the
design
so that the valves open and foreign objects can be flushed out.
If the functional fault cannot be rectified in this way:
cleaning is necessary: the valve must be dismantled
The pretensioned spring must be fully relaxed before a fitting is dis-
mantled!
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>.
When the valve is not under pressure, take off the spring module by relea-
sing the clamp rings (or the screw connection) and dismantle the
diaphragm (or piston/bellows) and functional parts for cleaning.
Here all parts of the maintenance set should be renewed.
Afterwards, assemble the fitting and readjust it, as described under
Section 7 <Initial start-up>.
If during cleaning it is found that the control mechanism (diaphragm, pis-
ton or bellows), the cone or other functional parts are damaged:
Repair necessary:
damaged parts have to be replaced.
If the repair is to be carried out in the customer's workshop:
make a note of all data according to the markings on the fitting and order
the spare parts and necessary instructions from MANKENBERG. See
Section 11 <Further information> for addresses.
or:
Send the fitting to the manufacturer for repair. See Section 11 <Further
information> for the addresses.
Tel.
Fax
Email gm@mankenberg.de
www.mankenberg.de
- 13 -
Danger of fatalities
+49-451 -8 79 75 0
+49-451 -8 79 75 99
© 2020 MANKENBERG GmbH