DCA Z1J-FF03-13 Manual de instruções - Página 5
Procurar online ou descarregar pdf Manual de instruções para Perfurar DCA Z1J-FF03-13. DCA Z1J-FF03-13 7 páginas. Electric impact drill
Imprimir páginaInstalling Auxiliary Handle
Always use the auxiliary handle ensure
operating safety. Sleeve the auxiliary
handle on the neck of the gear
housing and secure it at the desired
position by rotating the auxiliary handle.
(Fig. 5)
Drilling Operation
When boring metal, wood or plastic materials, turn the change ring fully clockwise
to use rotation only action.
Drilling in wood
When drilling in wood, the best results are obtained with wood drills equipped with
a guide screw. The guide screw makes drilling easier by pulling the bit into the
workpiece. Metal drills may be used when drilling a hole less than ø6mm.
Drilling in metal
To prevent the bit from slipping when starting a hole, make an indentation with a
center-punch and hammer at the point to be drilled. Place the point of the bit in the
indentation and start drilling.
Use a cutting lubricant when drilling metals. The exceptions are iron and brass
which should be drilled dry.
Drilling in concrete, granite, tile or similar materials
When drilling in concrete, granite, tile, etc., turn the change ring fully
counterclockwise to use impact plus rotation action.
Be sure to use a tungsten-carbide tipped bit. Use lower speed when starting,
increase the speed when a hole deeper than 5mm obtained.
WARNING:
Pressing excessively on the tool will not speed up the drilling. In fact, this
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excessive pressure will only serve to damage the tip of your bit, decrease the
tool performance and shorten the service life of the tool.
There is a tremendous force exerted on the tool/bit at the time of hole break
through. Hold the tool firmly and exert care when the bit begins to break through
the workpiece.
Always secure small workpieces in a vise or similar hold-down device.
Your arm is subjected to larger reaction force when a thick drill bit is used. Be
careful not to be moved by the reaction force. For this, establish a foothold, hold
the tool firmly by both hands perpendicularly to the material being drilled.
Check and change drill bit regularly. Worn or damaged drill bits may reduce the
drill efficiency, even cause the motor overloaded.
MAINTENANCE AND INSPECTION
CAUTION:
Always be sure that the tool is switched off and unplugged before attempting to
perform inspection or maintenance.
1. Inspecting the mounting screws
Regularly inspect all mounting screws and ensure that they are properly tightened.
Should any of the screws be loose, retighten them immediately. Failure to do so
could result in serious hazard.
2. Maintenance of the motor
The motor unit winding is the very "heart" of the power tool. Exercise due care to
ensure the winding does not become damaged and /or wet with oil or water.
3. Inspecting and replacing the carbon brushes
Remove and check the carbon brushes
regularly. Replace when they wear down
to the limit mark (Fig. 6). Keep the carbon
brushes clean and free to slip in the
holders. Both carbon brushes should be
replaced at the same time. Use only
identical carbon brushes.
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