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Starting Operation
Observe correct mains voltage! The voltage
of the power source must agree with the
voltage specified on the nameplate of the
machine. Power tools marked with 230 V can
also be operated with 220 V.
Switching On and Off (BTI-ST 135 E)
To start the machine, push the On/Off switch 3 for-
wards.
To switch off the machine, push the On/Off switch 3
toward the rear so that the "0" is indicated on the
switch.
Switching On and Off (BTI-ST 135 BE)
To start the machine, press the On/Off switch 3.
To lock the On/Off switch 3, keep it depressed and
push the lock-on button 2 to the right or left.
To switch off the machine, release the On/Off switch
3. When the On/Off switch 3 is locked, press it first
and then release it.
Controling the Stroke Rate (BTI-ST 135 BE)
Increasing or reducing the pressure on the On/Off
switch 3 enables stepless stroke-rate control of the
switched-on machine.
Light pressure on the On/Off switch 3 results in a low
stroke rate. Increasing the pressure also increases the
stroke rate.
When the On/Off switch 3 is locked, it is not possible
to reduce the stroke rate.
Presetting the Stroke Rate
With the thumbwheel for stroke rate preselection 4,
the stroke rate can be preset and changed during
operation.
1 – 2:
Low stroke rate
3 – 4:
Medium stroke rate
5 – 6:
High stroke rate
The required stroke rate is dependent on the material
and the working conditions and can be determined by
a practical trial.
Reducing the stroke rate is recommended when the
saw blade engages in the material as well as when
sawing plastic and aluminium.
After longer periods of work at low stroke rate, the
machine can heat up considerably. Remove the saw
blade from the machine and allow the machine to cool
down by running it for approx. 3 minutes at maximum
stroke rate.
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Working Advice
When working small or thin work pieces,
always use a sturdy support or a saw table
(accessory).
While working, hold the machine by the handle 19 and
guide it alongside the desired cutting line. For precise
cuts and quiet running, guide the machine additionally
with the other hand by the plastic cap 1.
Contact Protector
The contact protector 15 attached to the casing pre-
vents accidental touching of the saw blade during the
working procedure and may not be removed.
Sawing Thick Wood
For straight cuts in thick wood, please observe the fol-
lowing recommendations:
– Switch on Precision Control for lateral guidance of
the saw blade (see "Precision Control", page 37).
– Adjust the precise mitre angle using an angle
measurer.
– Saw applying only low feed. Orbital action and
stroke ensure sufficient working process.
– Always guide the machine resting firmly against
the parallel guide 26 or an auxiliary guide rail. Avoid
lateral pressure on the handle 19 to prevent tilting
of the machine.
– While sawing, hold the machine with one hand by
the handle 19 and with the other hand by the plas-
tic cap 1.
Plunge Cutting (see figures G – H)
Plunge cuts may only be applied to soft mate-
rials, such as wood, gypsum plaster boards,
etc.!
Use only short saw blades for plunge cutting. Plunge
cutting is possible only with the mitre angle set at 0°.
Place the machine with the front edge of the base
plate 8 on to the workpiece without the saw blade 14
touching the workpiece and switch on. For machines
with stroke rate control, select the maximum stroke
rate. Firmly hold the machine against the workpiece
and by tilting the machine, slowly plunge the saw
blade into the workpiece.
When the base plate 8 fully lays on the workpiece,
continue sawing along the desired cutting line.
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