Hepa Filter Replacement; Motor Cooling Fan Inspection And Cleaning; Tightness Inspection; Separator Cleaning And Replacement - Nilfisk-ALTO ATTIX 170 Betriebsanleitung

ATTIX 170 / ATTIX 170 E
■ Dispose of the old filter according to the laws in force.
While performing assembly operations, ensure to
research phase condition between filter, cage and
filter shaker (Fig. 15).
If necessary contact the manufacturer's Service Centre.
These operations can be performed using devices for
lifting the unit and keeping it in vertical position.

HEPA filter replacement

Version for dust harmful to health: H class
Take care not to raise dust when this operation is
carried out. Wear a P3 mask and other protective
clothing plus protective gloves (DPI) suited to the
hazardous nature of the dust collected, refer to the
laws in force.
Upstream HEPA filter replacement
1 Hose
2 Release lever
3 Cover
4 Filter
5 Safety bolt
■ Remove the safety bolt (5).
■ Disassemble the hose (1).
I
■ Use the lever (2) to remove the cover (3) or the filter (4).
■ Cover the filter (4) with a plastic bag.
GB
■ Seal the plastic bag hermetically and insert a new filter
unit which complies with the laws in force.
■ Assemble the components in the reverse order of
F
disassembly.
■ Seal the cover again hermetically.
■ Dispose of the old filter according to the laws in force.
D
E
If the vacuum cleaner is ATEX variant: perform galvanic
continuity tests in accordance with the accident-prevention
standards (e.g.: VBG4 and according to DIN VDE 0701
part 1 and part 3).
Standard EN 60335-2-69 prescribes inspections at regular
intervals or after repairs or modifications.
C328
WARNING!
[ NOTE ]
WARNING!
Figure 16
[ NOTE ]

Motor cooling fan inspection and cleaning

Periodically clean the motor cooling fan to prevent the motor
from overheating, especially if the vacuum cleaner is used in
a dusty place.

Tightness inspection

Hoses check
Make sure that connecting hoses (1, 2, 3, Fig. 17) are in a
good condition and correctly fixed.
If the hoses are damaged, broken or badly connected to the
unions, they must be replaced.
When sticky materials are treated, check for possible clogging
along the hose (4, Fig. 17), in the inlet and on the baffle plate
inside the filtering chamber.
Scrape the inlet from the outside and remove the deposited
waste as indicated in figure 17.
Filtering chamber tightness check
If the gasket (1, Fig. 18) between the container and the
filtering chamber (3) fails to guarantee tightness:
■ Loosen the four screws (2) that lock the filtering chamber
(3) against the vacuum cleaner structure.
■ Allow the filtering chamber (3) to lower down and tighten
the screws once it has reached the tightness position (2).
The gasket must be replaced if it is torn, cut, etc...
Replace the gasket (1, Fig. 18) if the degree of tightness is
still not optimum.

Separator cleaning and replacement

If there is only a dust deposit on the separator (4, Fig. 19)
allow the dust to drop through the central hole.
The separator (4, Fig. 19) should first be disassembled in
order to be perfectly cleaned:
■ Use the lever (1) to remove the lid (2) together with the
primary filter.
■ Unscrew the two screws (3) and remove it from the
container.
Replace the part if it is excessively worn.
Assemble the components in the reverse order of
disassembly.
12
[ NOTE ]
11/2008