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Symbols on the device
Dust class
WARNING: This device contains dusts that are harmful
to your health. Emptying and maintenance, including
removal of the dust bag, may only be performed by ap-
propriately trained personnel wearing suitable personal
protective equipment. Do not switch on until the entire
filter system is installed.
Main filter elements
Flat fold filter (cellulose)
Order number
6.904-367.0
Flat fold filter (PES)
Order number
6.907-662.0
Flat fold filter (PTFE)
Order number
6.907-455.0
Flat fold filter (PTFE H)
Dry vacuuming
NT 30/1: The device is fitted with a fleece filter bag
with cap, order no. 2.889-154.0 (5 pieces).
NT 40/1, NT 50/1: The device is fitted with a fleece
filter bag with cap, order no. 2.889-155.0 (5 pieces).
The device is equipped with a dust bag with cable
ties, order no. 2.889-158.0 (10 pieces).
Note
All types of dust up to dust class L can be vacuumed
with this device.
Note
The device is an industrial vacuum cleaner for vacuum-
ing dry, non-inflammable dusts with workplace limit val-
ues (AGW) greater than or equal to 1 mg/m3.
When vacuuming fine dust, a fleece filter or dust bag
can also be used.
Installing the fleece filter bag
1. Unlock and remove the suction head.
2. Fit the fleece filter bag.
Illustration C
3. Fit and lock the suction head.
Installing the dust bag
1. Unlock and remove the suction head.
2. Insert the dust bag.
Illustration D
3. Pull the dust bag over the container. Ensure that the
marking line is within the container and both ventila-
tion holes are positioned on the back wall of the con-
tainer.
4. Fit and lock the suction head.
Order number
6.907-671.0
Candle filter
Order number
2.414-000.0
Preparation
1. Unpack the device and install the accessories.
Illustration B
Initial startup
WARNING
Danger from dust that is harmful to your health
Respiratory sicknesses through inhalation of dust.
Do not vacuum without correctly installed filter ele-
ments, otherwise a danger to health from increased fine
dust emission is present.
ATTENTION
Danger due to fine dust entering
Risk of damage to the suction motor.
Never remove the main filter element when vacuuming.
Anti-static system
Static charges are discharged through the earthed con-
nection nozzles. This prevents sparking and electric
shocks with electrically conducting accessories (option-
al).
Wet vacuum cleaning
DANGER
Danger from dust that is harmful to your health
Respiratory sicknesses through inhalation of dust.
No dusts harmful to health may be vacuumed when per-
forming wet vacuum cleaning.
Note
The flat fold filter (cellulose) with the order number
6.904-367.0 available as an accessory is not recom-
mended for regular wet vacuum cleaning.
Note
The candle filter available as an accessory with the or-
der number 2.414-000.0 is not suitable for wet vacuum
cleaning.
Installing the squeegees
1. Remove the brush strip.
Illustration E
2. Install the squeegees.
Removing the fleece filter bag
The fleece filter bag must always be removed when
vacuuming wet substances.
1. Unlock and remove the suction head.
2. Pull the fleece filter bag on the flange up and out.
Illustration F
3. Seal the fleece filter bag with cap.
4. Dispose of the used fleece filter bag in accordance
with statutory regulations.
5. Fit and lock the suction head.
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