NT 251
Wet-vacuuming
Never use this cleaner to vacuum explosive
liquids, acids or solvents.
• The paper filter bag must be removed before
using the cleaner for wet-vacuuming.
• The cartridge or fabric filter must remain in the
unit. Let it dry out before using it again for dry
vacuuming.
• If the container is full, the float closes the inlet,
the suction power is reduced, and the suction
motor runs at a higher speed. When this
happens, switch off and unplug the cleaner
from the mains electricity.
• Hold the hose up high to allow any liquid to flow
into the container.
• Cleaning can be continued as soon as the
container has been emptied.
Emptying the container
• Release the container clips, lift off the
vacuuming assembly, and lay it on its side.
• Within a short period of time wet dirt will start to
decay, therefore empty the container after each
use, and rinse it out with clean water.
Troubleshooting
Problem
Motor (suction turbine) does
not work
Suction power drops off
gradually
Suction power drops off
suddenly
Dust is expelled during
vacuuming
Replacing and cleaning the filter
cartridge or fabric filter
• Release the container clips, lift off the
vacuuming assembly, and lay it on its side.
• Loosen the bayonet catch holding the cartridge
filter and remove cartridge filter, or pull off the
fabric filter (Illustration D).
• Cleaning can be done with a soft brush or by
holding the filter under running water
(Illustration E). Let it dry out before using it
again for dry vacuuming.
• Place the vacuum assembly onto the container,
and secure with the clips.
Technical specifications
Voltage
Mains fuse (slow)
Container volume, net
Water intake capacity
Blower data
Air flow rate
Vacuum
Weight
Class of protection
Mains cable
Sound pressure level
Specifications subject to change without prior
notice.
Cause
No power supply
Blocked filter, nozzle, suction
hose or tube
Full paper filter bag or
container
Defective or improperly fitted
filter
240
1~50/60
12
18
8
P
1200
MAX
P
1000
NOM
68
180
5.5
II
Type
H05VV-F2x1
74
Remedy
Check building fuse, mains
cable and socket.
Check, clean
Switch off unit, and empty
container. Replace filter bag.
Check filter fitting; replace
filter if required
English
V
Hz
A
L
L
W
W
L/sec
mbar
kg
dB(A)
5