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•
CLEANING THE DUST FILTERS:
Every 40 / 70 working hours or whenever necessary,
check the dust filters
Part. 1 Fig. 14
. Remove
them from housing, loosen the filter-pressing
blocks
Part. 2 Fig. 14
and clean the filters by, first
of all, banging them on the floor (not violently),
keeping the perforated side towards the floor . For
more thorough cleaning, use a compressed-air gun
and blow from outside towards the inside, as shown
in
figure 14
. When refitting the filters, always
remember to replace the black seal
Part. 3 Fig. 14
on the bottom of the filter .
Make sure that the filters are always in good
condition and, whenever necessary, replace them .
•
DUST SEALS:
Every 40 / 70 working hours, check the condition of the dust seals
Part.
1
(movable) and
Part. 2
(3 fixed seals)
Fig. 15
surrounding the central
brush
Part. 2 Fig. 4
. Whenever necessary, replace these .
IMPORTANT:
By replacing the seals make sure the side seals
(the shortest one on the right and on the left. in total 2) are
raised off the ground of about 2 mm.
•
CENTRAL BRUSH:
Part. 2 Fig. 4
. Every 50 / 80 working hours, or whenever necessary, check the condition of the central brush,
especially if you have picked up pieces of string, wire, etc .
To remove such items from the brush:
•
Remove the bin
Part. 2 Fig. 7
.
•
Kneel down and inspect the central brush under the machine . Wearing gloves and a face mask to
protect the airways, remove any pieces of string or wire wrapped around the central brush . The 4 hooks
(eyebolts) provided can also be used to raise the machine (
see Fig. 1
) and perform this operation . Take
care not to stand underneath the machine .
ADJUSTMENTS AND REPLACEMENTS
•
CENTRAL BRUSH ADJUSTMENTS:
•
If the machine starts cleaning in a faulty manner or leaves dirt around, it will have to be adjusted and
lowered as followed:
•
Position lever
Part. 1 Fig. 16
so that the central brush is raised .
•
Loosen screw
Part. 2 Fig. 16.
•
Lower the adjuster
Part. 3 Fig. 16
by 3/4 mm or by the desired distance .
•
Secure the adjuster by tightening screw
Part. 2 Fig. 16
•
Position lever
Part. 1 fig. 16
above the adjuster
Part. 3 fig. 16
.
•
The central brush can be adjusted until the adjuster
Part. 3 fig. 16
reaches the end of stroke; after this,
the brush must be replaced .
Summary of Contents for SWL 990 ET
Page 18: ...18 TAVOLA 1 ...
Page 35: ...35 DRAWING 1 ...
Page 52: ...52 TABLE 1 ...
Page 69: ...69 ZEICHNUNG 1 ...
Page 86: ...86 TABLA 1 ...
Page 103: ...103 TABELA 1 ...
Page 137: ...137 TABULKA 1 ...
Page 138: ...138 7 700 0660 00 04 2022 ...