13
B.
Grasp the filter
24
by the edges,
pull up and remove (Fig. 5).
C.
Before inserting new filter, use a
moist cloth and remove any dust
and
debris
from
the
filter
compartment.
D.
Insert new filter and make sure the
filter is seated firmly in place.
E.
Shut the filter cover
7
, ensuring it
locks into place.
▶ Filter Cleaning System
B o s c h G A S 2 0 - 1 7 A f e a t u r e s a n
automatic filter cleaning system. This
is a very aggressive system which
maximizes filter cleaning to maintain a
high air flow (CFM) rate even in heavy
duty applications.
C h e c k
f i l t e r
p e r i o d i c a l l y
a n d
r e p l a c e i f w o r n o u t o r d a m a g e d .
U s i n g d a m a g e d f i l t e r c a n l e a d t o
r e l e a s e o f u n w a n t e d a i r b o r n e
contaminants from the canister.
Notes:
•
Always use a filter bag when using
HEPA filter with dust extractor.
•
3-layer paper filter bag in
conjunction with the automatic
filter cleaning will help extend filter
life and maintain dust extractor
suction efficiency.
•
With regular usage of the filter
cleaning system, the maximum
vacuuming
performance
is
maintained longer.
•
The Automatic Filter Cleaning
(AFC) system must be activated
when the suction power decreases
to the point of being insufficient.
•
The sound of the filter cleaning
system may surprise those near the
work area. Before using filter
cleaning, alert those in the vicinity
of the dust extractor of this feature
and the associated sound it makes.
•
The proper frequency for activating
the filter cleaning system depends
on the type and amount of dust.
With regular usage, the maximum
vacuuming
performance
is
maintained longer.
Automatic filter cleaning is active
whenever the mode selector switch
5
is in “ON+AFC” position.
To operate the dust extractor without
Automatic filter cleaning, turn the
mode selector switch
5
to position
“ON” (Fig. 4).
Air reversals will clean the filters
every 15 seconds, maintaining the
highest level of suction power. Dust
extractor suction will be maintained
as the filters are being cleaned.
▶ Dry Vacuuming
To reduce exposure to
silica dust, follow the
below guidelines:
•
Always use HEPA filter and a filter
bag.
•
Check filter periodically and
replace if worn out or damaged.
Never use compressed air, shake
filter or hit filter against object to
clean filter.
•
Wipe dust off dust extractor
control unit with moist cloth. Use
water to clean the canister and
attachments. Do not use dust
extractor until completely dry.
▶ Wet Vacuuming
D o
n o t
u s e
t o
vacuum flammable
liquids, gases, or explosive dusts,
like gasoline or other fuels, lighter
fluid, varnish, polyurethane coatings,
cleaners, oil-based paints, natural
gas, hydrogen, coal dust, magnesium
dust, grain dust, or gun powder.
Electric motors create sparks, which
may ignite the dust or fumes.
A f i l t e r m u s t b e
u s e d
w h e n
w e t
vacuuming. Do not use HEPA filter
for wet vacuuming.
A polyester (PES)
f i l t e r
( s o l d
s e p a r a t e l y )
i s
recommended for wet vacuuming.
Do not use paper,
p l a s t i c o r f l e e c e
filter bag when wet vacuuming.
If a
bag is to be used when vacuuming
wet materials, a wet/dry slurry bag
must be used.
Operating Instructions
2610051564_GAS20-17A 5/8/18 1:18 PM Page 13
