Ferm 91
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06 Ferm
Electrical safety
Always check to see whether the voltage of your battery corresponds to that given
on the rating plate. Also check to see whether the voltage of your power supply
corresponds to the input voltage of the battery charger.
The battery charger is doubly insulated; therefore, it does not need to be grounded.
If it becomes necessary to replace the power cable, this must be carried out by the
manufacturer or an authorized representative in order to prevent safety risks.
3. INSTALLING THE ACCESSORIES
Always remove the battery before beginning an installation.
Installing and removing drill bits
Fig. B
In addition to drilling, the device can also function as a screwdriver and accommodate bits with
hexagonal shafts.
• Loosen the drill chuck (7) by turning it by the flanging (B).
• Insert the shaft of the drill bit into the receptacle of the drill chuck.
• Tighten the drill chuck until the shaft of the drill bit is firmly in place.
• Loosen the drill chuck if you want to change the drill bit.
• Before connecting the charger, check to ensure that the outer surface of the battery block
or tool is clean and dry.
Before connecting the charger, check to ensure that the outer surface of the battery
block or tool is clean and dry.
Installing and removing the battery
Fig. C
• Ensure that the direction of rotation switch (1, Fig. A) is in the center position in order to
prevent the device from being unintentionally switched on.
• Insert the battery (3) into the base of the device as shown in the drawing. Press in firmly on
the battery until it locks into place.
• Before removing the battery, press the latching buttons (A) on both sides. Then pull the
battery out of the base of the device.
Side handle
Use the additional handle supplied with the device. Failure to maintain control of the device can
lead to injuries.
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