Operation And Maintenance - GRAPHITE 58G718 Manual De Instrucciones

Choose appropriate rotational speed when the drill operates with no load, with pressed switch lock button.
Speed that is set in this way may decrease under load.
CHANGE OF GEAR
Drill is equipped with gear switch (9), which broadens the range of rotational speed (fig. C).
Gear I: lower range of rotational speeds – for large diameter holes or for works with hard material.
Gear II: higher range of rotational speeds – for small diameter holes or for works with soft material.
Set the gear switch (9) in appropriate position depending on the processed material. Turn the spindle
slightly if the switch cannot be moved.
Never change the switch position under operation of the drill. It may damage the power tool.
LEFT – RIGHT DIRECTION OF ROTATION
Choose direction of spindle rotation with the selector switch (4) (fig. A).
Right rotation – move the switch (4) to the extreme left position.
Left rotation – move the switch (4) to the extreme right position.
* The possibility is reserved that in certain cases position of the switch relating to rotation direction may be different than
specified. Please refer to graphic signs placed on the switch or tool body.
Do not change direction of rotation when the spindle of the drill is rotating. Check if the position of
the selector switch is correct before starting the tool.
OPERATION MODE SWITCH
Operation mode switch (2) allows for choosing suitable work mode: drilling with or without impact (fig. B).
Set the operation mode switch in the position for drilling without impact (drill symbol), when processing
materials like metal, wood, ceramics, plastics and alike. Set the operation mode switch in the position for
drilling with impact (hammer symbol), when processing materials like stone, concrete, brick and alike.
Holes in wood, wood-like materials and metals are made with drills of high speed steel or carbon steel (the
latter for wood and wood-like materials only). For stroke drilling special drills with sintered carbide inserts
should be used.
Do not use left direction of rotation when stroke function is on.
Long lasting drilling at low rotational speed of the spindle may cause motor overheating. Provide
periodic breaks during operation or let the tool operate at maximum speed with no load for
approximately 3 minutes. Do not cover holes for motor ventilation in the tool body.
Unplug the power cord from the mains socket before commencing any activities related to
installation, adjustment, repair or maintenance.
Impact drill does not require any additional lubrication or special maintenance. There are no user serviceable
parts inside the tool. Never use water or other chemical liquids for cleaning the drill. Wipe the tool with
a dry cloth only. Always keep the drill in dry place. Always keep the ventilation holes on the drill body
pervious. In case of power cord damage replace it with a cord with the same specification. Entrust the repair
to a qualified specialist or a service.
DRILL CHUCK REPLACEMENT
● Open chuck (1) jaws.
●
Unscrew the chuck fixing screw with cross screwdriver, by turning it clockwise (left-hand thread).
●
Install hex key in the chuck (
●
Gently tap free end of the hex key.
●
Unscrew the chuck.
Installation of the chuck is similar to deinstallation, only the sequence of actions is reversed.

OPERATION AND MAINTENANCE

fig. D).
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