HEBU medical ECO Accu HB 8870, Operating And Service Manual, Page: 24 / 68

Oscillo-Saw ECO Accu
24
EN
7 Operation
Switching on and off (see
fig. 5
)
Switching on: Push the switch forwards ( I )
Switching off: Push the switch back ( 0 )
Setting the oscillating
frequency
(see
fig. 6
)
Select the oscillating frequency
when the motor is running. The
optimum oscillating frequency
can be selected at the speed
gauge
depending on the
properties of the plaster cast.
Oscillating
frequency
preselection using the electronic
speed gauge.
Lowest oscillating frequency
( 1 )
Highest oscillating frequency ( 6 )
7.1 Opening plaster casts
First select a suitable saw blade.
Apply the HEBU oscillating saw with the saw blade mounted to the cast you wish to open and
press in lightly. Your guiding hand can be used as a support and for depth control, and to
prevent sudden penetration of the blade when the cast has been cut through.
As long as the saw blade is cutting through the plaster, you will be able to feel a resistance.
Once the plaster cast has been cut through, this resistance disappears. Once the breakthrough
point is tangible, lift the saw blade off lightly without removing it from the cutting groove and
move it forwards appr. 15 mm in the direction of cutting.
Then apply the blade again and proceed as described above until the next piece has been cut
through.
In this way, the plaster cast is more safely opened through a series of cuts and linear
movements along the cutting line than would be the case if executing a continuous linear cut.
After you have used the saw only a few times, you will become accustomed to guiding the saw
through the plaster cast and you will also develop an instinctive feel for the moment where no
further resistance is tangible and no further pressure should be applied to the saw blade.
If the saw blade oscillates for too long on the wadding, high-speed oscillation can bring about a
burning sensation on the skin under the wadding.
fig. 5 Switching on and off
fig. 6 Setting the oscillating frequency