Draper 230V Grass Trimmer Instructies voor - Pagina 15
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10. ADVANCE JIGSAW OPERATION
10.1 INTERNAL CUTS - FIG. 5
There are two options for making internal cuts in
workpieces:
i. Using a flat wood bit, drill a large enough
hole in an area within the waste part of the
workpiece in order to provide a starting
point for the jigsaw blade.
ii. Alternatively the saw blade can be directly
inserted into the material (only for wood
workpieces). This operation should only be
performed by operators with considerable
work experience and with short blades
only.
With the machine running at full speed the
saw blade should be rested on the
workpiece at an angle of 55°- 60° (Fig.5.) in
relation to the front edge of the base. It
should then be pressed slowly and carefully
onto the material.
The first phase of the operation should be
undertaken with great care: sudden
counter-strokes and overloads during
contact between the blade and workpiece,
or excessive rapid penetration of the
material, can provoke blade breakage.
This method of starting an internal cut
should only be carried out at maximum
speed.
FIG.5
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