Nederman FlexPAK DX, Installation And Service Manual

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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