Motor Brushes - BTI PROFILINE BH 3-28 ME Instrucciones De Manejo

E N G L I S H
Drilling with a Core Bit
1. Set the mode selector (d) to the hammerdrilling
position.
2. Adjust the side handle (i) as required.
3. Insert the appropriate core bit.
4. Assemble the centerdrill into the core bit.
5. Place the centerdrill on the spot and press the
variable speed switch (a). Drill until the core
penetrates into the concrete approx. 1 cm.
6. Stop drilling and remove the centerdrill. Place the
core bit back into the hole and continue drilling.
7. When drilling through a structure thicker than
the depth of the core bit, break away the round
cylinder of concrete or core inside the bit at regular
intervals. To avoid unwanted breaking away of
concrete around the hole, fi rst drill a hole the
diameter of the center drill completely through the
structure. Then drill the cored hole halfway from
each side.
8. Always switch off the tool when work is fi nished
and before unplugging.
Rotary Drilling (fi g. 1)
1. Set the mode selector switch (d) to the rotary
drilling position.
2. Fit the chuck adapter/chuck assembly.
3. Proceed as described for hammerdrilling.
WARNING: Never use standard chucks in the
hammer drilling mode.
Screwdriving (fi g. 1)
1. Set the mode selector switch (d) to the rotary
drilling position.
2. Select the direction of rotation.
3. Insert the special SDS Plus
for use with hexagonal screwdriver bits.
4. Insert the appropriate screwdriver bit. When driving
slotted head screws always use bits with a fi nder
sleeve.
5. Gently press the variable speed switch (a) to
prevent damage to the screw head. In reverse (LH)
rotation the tool speed is automatically reduced for
easy screw removal.
6. When the screw is fl ush with the workpiece,
release the variable speed switch to prevent the
screw head from penetrating into the workpiece.
Chipping and Chiselling (fi g. 1)
1. Set the mode selector switch (d) to the hammering
only position.
2. Insert the appropriate chisel and rotate it by hand
to lock it into one of 51 positions.
® screwdriving adaptor
42
3. Adjust the side handle (i) as required.
4. Switch on the tool and start working.
5. Always switch off the tool when work is fi nished
and before unplugging.
WARNING:
• Do not use this tool to mix or pump easily
combustible or explosive fl uids (benzine,
alcohol, etc.).
• Do not mix or stir infl ammable liquids
labelled accordingly.
MAINTENANCE
Your BTI power tool has been designed to operate over
a long period of time with a minimum of maintenance.
Continuous satisfactory operation depends upon proper
tool care and regular cleaning.
WARNING: To reduce the risk of injury,
turn unit off and disconnect machine from
power source before installing and removing
accessories, before adjusting or changing
set-ups or when making repairs. Be sure
the trigger switch is in the OFF position. An
accidental start-up can cause injury.
• This machine is not user-serviceable. Take
the tool to an authorised BTI repair agent after
approximately 40 hours of use. If problems occur
before this time contact an authorised BTI repair
agent.
• The tool will automatically switch off when the
carbon brushes are worn.

Motor Brushes

BTI uses an advanced brush system which
automatically stops the drill when the brushes wear out.
This prevents serious damage to the motor.
New brush assemblies are available at authorised BTI
service centers. Always use identical replacement parts.
Lubrication
Your power tool requires no additional lubrication.
Accessories and attachments used must be regularly
lubricated around the SDS Plus
®
fi tment.