Starting Operation; Working Advice - BTI PROFILINE A-UM 10,8V LI Originalbetriebsanleitung

OBJ_BUCH-891-001.book Page 35 Wednesday, January 21, 2009 3:34 PM
Operation

Starting Operation

Inserting the Battery
Use only original BTI lithium ion batteries
with the voltage listed on the nameplate of
your power tool. Using other batteries can lead
to injuries and pose a fire hazard.
Note: Use of batteries not suitable for the machine
can lead to malfunctions of or cause damage to the
power tool.
Insert the charged battery 2 into the handle until it can
be felt to engage and faces flush against the handle.
Switching On and Off
To start the machine, push the On/Off switch 6 for-
ward so that the "I" is indicated on the switch.
To switch off the machine, push the On/Off switch 6
toward the rear so that the "0" is indicated on the
switch.
The Li-ion battery is protected against deep discharg-
ing by the "Electronic Cell Protection (ECP)". When
the battery is empty, the machine is switched off by
means of a protective circuit: The inserted tool no
longer rotates.
Note: If the machine should automatically switch off
because of a discharged or overheated battery, make
sure to set the machine's On/Off switch 6 to off.
Charge the battery and allow it to cool down before
restarting the machine. Otherwise the battery can
become damaged.
Preselecting the Orbital Stroke Rate
With the thumbwheel for preselection of the orbital
stroke rate 5, you can preselect the required orbital
stroke rate, even during operation.
The required stroke rate depends on the material and
the working conditions and can be determined
through practical testing.

Working Advice

Note: Do not cover off the venting slots 7 of the
machine while working, as this reduces the working
life of the machine.
Operating Principle
Due to the oscillating drive the application tool/acces-
sory swings up to 20000 times per minute for 2.8°.
This allows for precise work in narrow spaces.
1 609 929 S48 • 21.1.09
Sawing
Use undamaged faultless saw blades only.
Deformed, blunt saw blades or saw blades that are
otherwise damaged can break.
When sawing light building materials, ob-
serve the statutory provisions and the recom-
mendations of the material suppliers.
Plunge cuts may only be applied to soft
materials, such as wood, gypsum plaster
boards, etc.!
Before sawing with HCS saw blades in wood, particle
board, building materials, etc., check these for foreign
objects such as nails, screws, or similar. If required,
remove foreign objects or use BIM saw blades.
Separating
Note: When separating wall tiles take into considera-
tion that the application tools/accessories wear heav-
ily when used for longer periods of time.
Sanding
The removal rate and the sanding pattern are primarily
determined by the choice of sanding sheet, the preset
oscillation rate and the applied pressure.
Only flawless sanding sheets achieve good sanding
capacity and extend the service life of the machine.
Pay attention to apply uniform sanding pressure; this
increases the working life of the sanding sheets.
Intensifiying the sanding pressure does not lead to an
increase of the sanding capacity, but to increased
wear of the machine and the sanding sheet.
For precise on-the-spot sanding of edges, corners
and hard to reach areas, it is also possible to work
only with the tip or an edge of the sanding plate.
When selectively sanding on the spot, the sanding
sheet can heat up considerably. Reduce the orbital
stroke rate and allow the sanding sheet to cool down
regularly.
A sanding sheet that has been used for metal should
not be used for other materials.
Use only original BTI sanding accessories.
For sanding, always connect dust extraction.
Scraping
For scraping, select a high oscillation rate.
Work on a soft surface (e.g. wood) at a flat ange, and
apply only light pressure. Otherwise the scraper can
cut into the surface.
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