Nederman FlexPAK DX, Installation And Service Manual

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FlexPAK DX
• FlexPAK DX is regularly inspected for damage or
malfunction. If FlexPAK DX is damaged, it is to be
shut down and any explosive atmosphere removed.
• There is to be no explosive atmosphere when servi-
cing or inspecting FlexPAK DX.
• Only Nederman original spare parts are to be used.
• FlexPAK DX is not be covered with thick dust layers
(>5 mm). This is prevented by setting up routines
for regular cleaning and including these in the ex-
plosion protection document.
6.2 Checks one month after installation
and every year
WARNING! Risk of electric shock
Always disconnect the supply voltage with
the maintenance switch before any service,
whether mechanical or electrical. Always lock
the maintenance switch in the off position. Do
not use the emergency stop button as a substi-
tute.
WARNING! Risk of personal injury
• Ensure that there is no vacuum present in the
system during service.
• Always disconnect the compressed air supply
before any service.
Check all power conductors and protective con-
ductors one month after installation and tight-
en, if required, to ensure good contact. Service
to the electrical equipment may only be carried
out by a qualified electrician.
One month after installation, and then every year,
perform the following checks:
• Check all power and protective conductors and
ground wire connections. Tighten, if required, to en-
sure good contact.
• Inspect the integrity of the dust separator.
• Ensure that the inside of the unit and the connec-
tion ducts are free from deposits. A build-up of de-
posits inside the duct system may cause the dis-
charge of static electricity.
• Clean the area around the unit and all areas where
the collected material is stored to ensure that there
are no dust deposits.
• Ensure that there is not any combustible material in
the risk area.
• Check that all signs/markings regarding safe opera-
tion are in place and that the personnel knows about
them.
• Verify the function of all emergency stop buttons,
alarms and signalling devices.
• Inspect the explosion venting panel and verify that
it is intact.
6.3 Empty the collector bin
WARNING! Risk of personal injury
• Ensure that there is no vacuum in the dust
separator before removing the collector bin.
• Crush hazard. Be careful when lowering and
refitting the collector bin. Use proper pro-
tective equipment.
• Wear goggles, a dust mask and gloves when
emptying the collector bin.
The plastic bag is to be replaced when filled up
to 2/3, see Figure 11 .
Do the following to replace the plastic bag:
1 Check that the risk area is clear.
2 Ensure that there is no vacuum in the dust separ-
ator.
3 Remove the collector bin.
4 Seal and remove the plastic bag. Use a cable tie or
equivalent, see Figure 12 .
5 Fit a new antistatic plastic bag in the collector bin,
see Figure 13 .
6 Refit the collector bin onto the dust separator.
7 Check that the pressure equalizer hose is attached
to the collector bin, see Figure 14 .
8 Check that the collector bin seals properly once
the vacuum is re-applied to the dust separator.
6.4 Replace the main filter
WARNING! Risk of personal injury
If a flameless venting device is used, FlexPAK
DX is heavy so lower the unit carefully. It can
fall on the individual replacing the filter or get
damaged.
Fitting the steel ring correctly is important to
maintain the tightness and durability of the
unit. Do not forget to ground it. See Figure 17 .
Filter replacement is to be noted in the service pro-
tocol of the unit. Replacing individual filter bags is
possible, but it is recommended that the whole filter
package is replaced since it is quicker and causes less
spreading of dust. The work is easy if the unit is placed
so it can be tilted, see Figure 15 . Also, the filter may be
lifted straight up, see Figure 16 , with a crane or other
lifting device.
If the filter bags are replaced separately, the plastic
holders will also have to be replaced.
Figure 17 , items A–C, shows how the rubber sealing
rings are to be fitted. When a used sealing ring is to
be re-used, the form when open may differ from the
original form as shown in item A. Use a screwdriver to
bring the edge of the module between the rubber lips
to obtain the result shown in item C.
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