Bosch GAS 35 L SFC+ Professional - Manual (Page 20)

20 | English
1 609 92A 0E0 | (25.7.13) Bosch Power Tools
Extraction of dusts resulting from running power tools
(see figure H)
 An adequate ventilation rate (L) must be provided for
when the outgoing air is circulated. Observe the re-
spective national regulations.
A socket outlet with earthing contact 3 is integrated in the
vacuum cleaner. An external power tool can be connected
there. Observe the maximal allowable load of the connected
power tool.
– Mount the tool sleeve 19 (see “Mounting the Tool Sleeve”,
page 19).
– Insert the tool sleeve 19 into the vacuum connection of the
power tool.
Note: When operating power tools that have a low air infeed
into the vacuum hose (e. g. jigsaws, sanders, etc.), open the
air diffuser 32 of the tool sleeve 19. This measure will ensure
trouble-free semi-automatic filter cleaning (SFC+) operation.
Turn the ring above the air diffuser 32 until the opening is at
its maximum size.
– To start the vacuum cleaner’s automatic
Start/Stop feature, set the mode selector
switch 5 to the “Automatic Start/Stop” sym-
bol.
– To start the operation of the vac, switch on the power tool
connected to the socket 3. The vacuum cleaner starts au-
tomatically.
– Switch the power tool off to end the vacuuming.
The after-run function of the automatic Start/Stop feature
lasts approx. 15 seconds, so that residual dust is drawn
out of the vacuum hose.
– To switch the vacuum cleaner off, set the mode
selector switch 5 to the “Off” symbol.
Wet Vacuuming
 Do not vacuum inflammable or explosive fluids; for ex-
ample, benzene, oil, alcohol, solvents. Do not vacuum
hot or burning dust. Do not operate the machine in
rooms where the danger of an explosion exists. The
dusts, vapours or fluids can ignite or explode.
 The vacuum cleaner may not be used as a water pump.
The vacuum cleaner is intended for vacuuming air and wa-
ter mixtures.
 Before any work on the vacuum cleaner itself, pull the
mains plug.
Note: The requirements for the ingress degree (dust
category L) have only been proven for dry vacuuming.
– Remove the disposal bag 23 or the dust bag and empty the
container 1 before wet vacuuming.
Note: For easier disposal when vacuuming liquid-solid mix-
tures, use a wet filter bag (accessory), which separates liq-
uids from solids.
– Mount the rubber lips into the floor nozzle (see “Inserting
the Rubber Lip”, page 19).
– Switch the semi-automatic filter cleaning (SFC+) off (see
“Deactivating the SFC+”, page 20).
The vacuum cleaner is equipped with filling-level sensors 35.
When the maximum filling height is reached, the vacuum
cleaner switches off. Set the mode selector switch 5 to the
“off” symbol.
Note: When vacuuming non-conductive liquids (e. g. drilling
emulsion, oil and grease), the vacuum cleaner is not switched
off when the container is full. The level must be monitored
continuously and the container emptied in time.
To prevent the formation of mould after wet vacuuming:
– Take out the flat-fold filter 24 and allow it to dry well.
– Remove the vacuum cleaner lid 8 open the filter cover 34
and allow both components to dry thoroughly.
Filter Cleaning
The filter cleaning system must be actuated latest when the
vacuuming performance is no longer sufficient.
The filter cleaning frequency depends on the type and amount
of dust. With regular usage, the maximum vacuuming perfor-
mance is maintained longer.
Semi-Automatic Filter Cleaning (see figure I)
With semi-automatic filter cleaning (SFC+), the lamellas of
the flat-fold filter are cleaned from deposited dust by revers-
ing the airflow.
Note: The semi-automatic filter cleaning is factory-activated
(SFC+ switch 18 in position I).
– Actuating the SFC+ filter cleaning
Shut or block off the nozzle or vacuum-hose opening with
your palm.
Or, with the SFC+ module
20 mounted:
Press the actuator 33 down for approx. 10 seconds.
– Deactivating the SFC+
Push the SFC+ switch 18 toward the front (position 0).
– Activating the SFC+
Push the SFC+ switch 18 toward the rear (position I).
Maintenance and Service
Maintenance and Cleaning
 Before any work on the vacuum cleaner itself, pull the
mains plug.
 For safe and proper working, always keep the vacuum
cleaner and ventilation slots clean.
 Wear a dust protection mask when maintaining and
cleaning the vacuum cleaner.
If the replacement of the supply cord is necessary, this has to
be done by Bosch or an authorized Bosch service agent in or-
der to avoid a safety hazard.
A dust-technical inspection is to be carried out at least once
every year by the manufacturer or an instructed person, e. g.
for damage of the filter, tightness against leakage of the vacu-
um cleaner and function of the control/monitoring unit.
For category L vacuum cleaners that were in contaminated
environments, the exterior as well as all machine parts should
be cleaned or treated with sealants. When performing mainte-
nance and repair work, all contaminated components that
cannot be cleaned to satisfactory must be disposed of. Such
components must be disposed of in impermeable plastic bags
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