Preparing For Operation - Sthor 79474 Manual Original

GB

PREPARING FOR OPERATION

Attention! All activities associated with the installation and replacement of saw blades, their adjustment and the mainte-
nance of a power tool should be carried out when the operating voltage of the tool is switched off, therefore, before the
further proceedings, you should carry out the following steps: Remove the plug from the mains outlet!
Mounting and replacing the saw blade
You should check whether the blade is not damaged, cracked, whether the cutting teeth are not broken, etc. In the case of dam-
age, replace the saw blade for a new one.
Two saw blades are supplied with the jigsaw. Saw blades for wood and wood-based materials have widely spaced teeth and saw
blades for metal and plastic have finer teeth. You should select a saw blade suitable for the planned work. Mount the saw blade
with its teeth facing forward.
The blade should be put in the spindle gap, so it will rest by its back on the notch in the roll.
Attention! Mounting the saw blade should be carried out in the protective gloves. This will reduce the risk of injury.
By using a wrench, loosen the screws fixing the blade, do not remove the bolts completely. Insert the blade holder into the resulting
gap. (II). Tighten the fixing screws, so the blade is properly fixed: the blade can not be pulled out of the spindle.
The saw blade removal should be carried out in reverse order.
Setting the saw blade oscillation (III)
Electric jig saw is equipped with an adjustable gradual oscillation adjustment. Adjusting is possible by using the lever. The lower
the number of setting, the the smaller the oscillations of the saw blade. With the setting labeled by "0" the saw blade oscillations
are disabled.
Saw blade oscillations allow for easy cutting, and their grade should be selected by an experiment, for example, by cutting the
waste material. However, you should follow the instructions, which are presented below:
- in order to obtain the most smooth edge of the cut you should set the lowest possible grade of oscillations or even turn them
off,
- when cutting thin materials (e.g., sheet of metal), you should switch of the oscillations,
- when cutting hard materials (e.g. steel), set the low rate of oscillation,
- when cutting soft materials, you should set the maximum degree of oscillation.
Setting the blade speed (IV)
The jigsaw is equipped with a potentiometer, which allows to set the movement speed of the blade. By rotating the potentiometer
ring, you can select the right blade speed for your work. The lower the numerical setting, the lower is speed of the blade.
Speed should be selected experimentally, for example, by cutting the waste material. Lower speeds should be used when cutting
plastics or aluminum. Speed should also be reduced, when the blade is jammed during cutting.
Setting the cutting angle (V)
The jig saw allows for adjustment of the angle of traverse cutting in the range from 0 to 45 degrees, tilting is possible in to the left
and right as well. If it is necessary, before adjusting, you should remove the dust extraction connection. You should loosen the
screws that secure the basis of the jigsaw, but do not unscrew them completely, Then move the basis back or forward and tilt it by
setting the desired cutting angle. The base can have hooks or a scale to facilitate setting the most common cutting angles. After
adjustment you should tighten the base screws and make sure that the base itself does not changed the set angle.
Installation of the guide (VI)
When you are cutting in a straight line, use a guide to run the jig along the edge of the cut material. In the case of straight cuts, your
should avoid running the jigsaw only with your hands, and wherever it is possible, use a guide or other tools to lead the tool.
The guide should be inserted into the base slots base and you should lock its position with the screw. Always insert the guide into
both slots of the base, only this way will ensure the parallelism of the guide foot in respect to the jigsaw base.
OPERATING OF THE TOOL
Before every operation, you should check, that the blade cover is mounted correctly and that it is lowered. Wear eye protection,
hearing protectors and working gloves. Mount the workpiece to the workstation, for example by using carpentry clamps, vice, etc.
Never hold the cut material only by hands or other parts of the body. In the case of cutting you must support the material at its
ends and near the cut line. Supports must be placed on both sides of the cut line so during cutting, the blade would not jammed in
the cut kerf. During cutting the foot must be supported by its whole surface on the cut material. To the outlet of the dust extraction
connection your should connect the dust extraction installation.
O R I G I N A L I N S T R U C T I O N S
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