Nilfisk GWD series Betriebsanleitung Seite 7

NOTE!
Dry cleaner shall always have the sack fi lter mounted in
the machine.
Wet cleaner (not the GD 320) shall always have the the
Sack Filter and the Float System mounted in the ma-
chine during both WET AND DRY operations.
Please also notice that the fi ll factor at the container
may vary when using a sack fi lter during wet pick-up
operations.
NOTE! Before wet pick-up
The machine is equipped with a fl oat system that shuts off the
airfl ow through the machine when the maximum liquid level is
reached. Never pick up liquid without the fl oat body in place.
To control: Loosen the two latches at each side of the motor top
. Then remove the motor top. Check that the fl oat basket and fl oat
valve are mounted at the motor top.
Remounting the motor top: Put back the motor top to the con-
tainer. Make sure that the switch/switches is located in direction
towards the suction inlet. Then tighten both latches so that the
motor top is properly secured. Always use a chemical defoamer
when picking up water containing foaming detergents. Use a
defoamer recommended by the detergent manufacturer.
1 Starting and operating of the machine
Check that the electrical switch is switched off (in position 0). Then
connect the suction hose into the suction inlet at the machine by
pushing the hose forward until it snaps in place at the inlet (to
release the hose from machine just push the release button down-
wards and then pull out the hose). Then connect the two tubes with
the hose handle, twist the tubes in order to ensure that they are
properly fi tted. Attach suitable nozzle to the tube. Choose nozzle
depending on what type of material that is to be picked-up. Con-
nect the plug into a proper electrical outlet. Put the electrical switch
into position 1 in order to start the motor. Some variants have two
motors/fan units and two electrical switches - one switch for each
motor.
GWD 350 & GWD 375 Adjusting the handle
The handle can be adjusted to the suitable working heigth. Start by
loosing the two locking screws at each side of the handle. Then ad-
just the handle by moving it upwards or downwards until the proper
angle is found. Tighten the both locking screws again to secure the
handle
Wet pick up
The machine is equipped with a fl oat body that shuts of the airfl ow
through the machine when the maximum liquid level is reached.
You will then hear a noticeable change of the sound from the motor
and notice that the suction power decreases. When this occurs,
switch the machine of. Disconnect the machine from the socket.
See item number 2 for emptying after wet pick-up.
Craftsman versions
These variants have an extra electrical outlet for connecting an dril-
ling machine or other electrical tools. Max 2000W power consump-
tion is allowed at the electrical tool to be connected. Your cleaner
can then be used to pick up wooden drillings and similair materials.
The electrical outlet is placed under a plastic cover at the front side
of the motor top. The electrical switch have two different positions.
Position I: normal operation. The machine will be shut off when the
switch is placed in position 0.
Position II: craftsman operation. The extra electrical outlet is ac-
tivated in this position. The vacuum cleaner is now started by fi rst
connecting an electrical tool to the electrical outlet and then starting
the electrical tool. When the electrical tool is shut off the vacuum
cleaner has 10 seconds delayed shut off. The meaning of the
delay is to ensure that the cleaner has time to pick-up the material.
INSTRUCTIONS FOR USE
2 Emptying after wet pick-up
Before emptying the container, unplug the vacuum cleaner.
Always empty and clean the container and the fl oat system
after picking-up liquids. Never pick up liquid without the fl oat
system and sackfi lter installed in the machine.
Emptying GWD 320 GWD 335
2a) Release the latch by pulling the lower parts outwards so that the
motor top is released. Lift up the motor top. Remove the sack fi lter
from the cleaner.
2b) Disconnect the hose from the inlet by pressing the button on the hose
connection downwards. Then pull out the hose.
2c) Empty by tilting the container backwards and pour the liquids into a
fl oor drain or similar. Wipe the fl oat valve and fl oat basket with a damp
cloth before the motor top is reinstalled to the container.
2d) Wipe the float valve and the float basket with a damp cloth.
2e) Put back the sack fi lter and the motor top to the container. Secure
with the latches.
Emptying: GWD 350 GWD 375
2f) Drain hose: GWD 375 have a draining hose. Detach the drain hose
from the bracket by pulling hose backwards from the cleaner. Place the
drain hose end near a fl oor drain and then remove the plug at hose end.
The natural pressure will then drain the liquids from the container.
2g) Emptying from the container: Pull the upper parts of the
latches outwards and release the motor top. Remove the motor
top. Then remove the sack fi lter. The suction hose can be attached
during emptying from the container. Grasp with one hand at the
handle at the lower part of the container. To avoid movement of the
trolley - place one foot at the basepart of the trolley. Then tilt the
container backwards and pour the liquids into a fl oor drain or similar.
2h) Wipe the float valve and the float basket with a damp cloth.
2i) Put back the motor top to the container. Make sure that the switch/
switches is located in direction towards the suction inlet. Secure with
the latches.
3 Emptying after dry pick-up
Remove the plug from the socket before emptying after dry pick-
up. Check the fi lters and dustbag regularly. Release the latches
by pulling them outwards so that the motor top is released. Lift up the
motor top from container.
Cartridge fi lter: To clean the fi lter you can either shake, brush or wash
it. Wait until it is dry before you reuse it. Check the motor fi lter, replace
it if it is clogged.
Sackfi lter:Grasp the sackfi lter and lift it up from cleaner. Shake fi lter
so that all dust is removed from the fi lter.
Dustbag: check bag to ensure the fi ll factor. Replace dust bag if
necessary. Remove the old bag. The new bag is fi tted by passing the
carboard piece with the rubber membrane through the
vacuum inlet. Make sure that the rubber membrane is passing past the
heightening at the vacuum inlet.
After emptying: Put back the motor top to the container. Make sure
that the switch/switches is located in direction towards the suction inlet.
Secure with the latches. Never pick up dry material without sackfi lter
or dustbag fi tted in the machine. The suction effi ciency of the vacuum
cleaner depends on the size and quality of the fi lter and dust bag.
Therefore - use only Original fi lter and dust bags.
4 Maintenance of the fl oat system
Remove the plug from the socket before performing maintenance.
Always empty and clean the container and the fl oat system after
picking-up liquids.
4a) Release the latch by pulling them outwards so that the motor top is
released. Lift up motor top from container. Turn the motor top to upside
down position.
4b)Then loosen the fl oat basket by turning the basket to the left.
Remove the complete fl oat system from motor top.
4c) A fi lter is located in front of the motor inlet. Check this motor fi lter
and HEPA-fi lter (if fi tted). Replace to new fi lter if fi lter is clogged. 4d)
Wipe the fl oat valve and fl oat basket with a damp cloth before the
motor top is reinstalled to the container. Then reinstall the fl oat valve to
the fl oat basket. Make sure that the sealed surface of the fl oat valve is
installed upwards in direction towards the motor top.
4e) To mount the fl oat basket - fi t the arrow at the basket to the arrow
at the motor top. Then secure the fl oat basket by turning it to the right.
5 After use
Remove the plug from the socket when machine is not in use. Wind up
the cord starting from the machine. The power cord can be wound up
around the handle/hooks located on the motor top. Some variants have
special storage places for accessories.
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