Operation; Emptying The Bin; Maintenance; Service And Maintenance Of Atex Equipment - Nederman FlexFilter EX Manual De Instrucciones

Operation

WARNING! Risk of personnel injuries . Use
proper protective equipment where there is a
risk for exposure to the dust .
WARNING! Ensure that no vacuum is present
in the dust separator before removing the bin .
WARNING! Personnel operating the FlexFilter
EX must pay special attention to avoid dis-
charge of static electricity . The requirements
for safe use and handling of combustible dust
should be described in the explosion protec-
tion document and to all personnel .

Emptying the Bin

The Bin bag should be replaced when filled up to
2/3 . How often this occurs varies for each installation .
Regular checks, or the use of an Nederman BLI (Bin
Level Indicator) are recommended .
NOTE! Use Nederman conductive plastic bags .
Replace bag/bags as described below:
1 . Make sure no vacuum is present in the dust sepa-
rator
2 . Remove the bin .
3 . Seal and remove the dust bag . Use cable tie or
equivalent (see picture no . 23)
4 . Fit a new bag into the bin
5 . Refit the bin to the dust separator.
6 . Check that the pressure equalizer hose is attached
to the bin (see picture no . 24)
7 . Check that the bin seals properly once the vacuum
returns to the dust separator .
FlexFilter EX

Maintenance

WARNING! Risk for personnel injuries! Al-
ways use proper protective equipment where
there is a risk for exposure to dust .
WARNING! Risk for personnel injuries! Al-
ways use proper lifting equipment and protec-
tive gear .
WARNING! Explosion risk! Do not open the
connection box when there is an explosive
atmosphere present .
NOTE! Fill out the service protocol for all maintenance
preformed on the FlexFilter EX .

Service and Maintenance of ATEX equipment

To ensure the required level of protection with regards
to the equipment category, check the following points:
• Ensure that the FlexFilter EX is regularly inspected
for damage or malfunction . If the FlexFilter EX
is damaged, it must be shut down and possible
explosive atmosphere removed .
• Ensure that no explosive atmosphere and/or dust
layers are present when cleaning, servicing or
inspecting the FlexFilter EX
• Ensure that only Nederman original spare parts
are used .
• Ensure that the FlexFilter EX is not covered with
thick dust layers (> 5 mm) . This is prevented by
setting up routines for regular cleaning and includ-
ing these in the explosion protection document .

Separating the modules

The picture no . 25 / A-C show how the rubber sealing
rings, the steel retainer rings and the earth connec-
tions should be assembled . When a used sealing ring
is refitted, it no longer has the flat shape as shown in
picture no . 25 / A . The rubber ring has a curved shape .
Use e.g. a screwdriver to fit the edge of the module
between the rubber lips. The steel ring has been fitted,
as shown in picture no . 25 / C .
If the collector has been dismantled, ensure that the
rubber sealing rings and the steel retainer rings, keep-
ing the modules together, are correctly reassembled
and that the earth connection is correct (see picture
no . 26) .
EN
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