Bosch 3931B-SPB Operating/Safety Instructions Manual page 8

BM 2610024876 04-12_BM 2610024876 04-12.qxp 4/5/12 9:14 AM Page 8
FIG. 5
FILTER
COMPARTMENT
LOCK
REMOVING THE FILTER CARTRIDGES
1. First, clean the filters by setting the mode
selector switch to the PULSE-CLEAN™
mode, which takes only 10 seconds.
2. To open the filter access compartment, use
a coin to rotate the filter compartment lock
by 1/4 turn in the direction of the arrow and
push the lock in.
3. Lift up the top section of the control unit.
4. Grasp the filter cartridge by the fins, pull up
and remove.
Replace a damaged filter cartridge
immediately.
THOROUGH CLEANING OF THE
FILTER CARTRIDGES
If necessary, the filter cartridges can also be
cleaned with a soft brush and can also be
washed with water.
INSTALLING THE FILTER CARTRIDGES
1. Insert new or cleaned filter cartridge and
ensure firm seating.
2. Lower the top section of the control unit
down onto the bottom section.
MOTOR
PROTECTION
FILTER
3. With slight pressure from the top of the
The motor protection filters are mostly
maintenance-free. If the motor protection filters
are dirty, it may indicate that the filter
cartridges are damaged and need to be
replaced. If the motor protection filters need
cleaning, take out the motor protection filters
and wash them. Allow them to dry thoroughly
before reinserting.
(See Figure 5.)
1. To open the filter access compartment, use
2. Lift up the top section.
3. Grasp the filter, pull up and remove.
-8-
control unit, the filter compartment lock will
snap back into place.
CLEANING THE MOTOR
PROTECTION FILTERS
REMOVING THE MOTOR
PROTECTION FILTERS
a coin to rotate the lock by 1/4 turn in the
direction of the arrow and push the lock in.
CONTROL
UNIT TOP
SECTION
CONTROL
UNIT BOTTOM
SECTION
FILTER
CARTRIDGE