3. Pull the chuck back as far as it will go and remove the accessory tool.
Use only the recommended grease supplied by Hilti. Use of unsuitable grease may cause damage
to the product.
5.1.3
Removing the accessory tool
DANGER
Risk of fire! Risk of contact between the hot accessory tool and highly inflammable materials.
▶ Do not lay the hot accessory tool down on highly inflammable materials.
WARNING
Risk of injury! The tool becomes hot as a result of use.
▶ Wear protective gloves when changing the tool.
▶ Remove the accessory tool.
5.1.4
Positioning the chisel
CAUTION
Risk of injury! Loss of control over the chisel direction.
▶ Do not operate the tool when the selector switch is set to "Chisel positioning". Turn the function selector
switch until it engages in the "Chiseling" position.
The chisel can be adjusted to 6 different positions (in 60° increments). This ensures that flat chisels
and shaped chisels can always be set to the optimum working position.
▶ Fit the accessory tool. → page 6
5.1.5
Setting the chiseling power
1. Press the power level selector switch.
▶ The power level indicator lights yellow.
▶ Power is reduced to 70%.
Reduce the power to 70% when you wish to chisel with greater precision.
The chiseling power level can be adjusted only when the tool is plugged in to the electric supply.
2. Press the power level selector switch again to return to full chiseling power.
5.2
Types of work
WARNING
Risk of electric shock! Severe injury and burns can result if any attempt is made to operate the tool without
an earth/ground conductor and ground fault circuit interrupter correctly connected.
▶ Irrespective of whether mains power or generator power is used, always make sure that an earth/ground
conductor and ground fault circuit interrupter are present in the power supply and that these are correctly
connected.
▶ Do not use the product unless these safety measures are in place and fully operational.
WARNING
A damaged supply cord presents a hazard! Do not touch the supply cord or extension cord if damaged
while working. Disconnect the supply cord plug from the power outlet.
▶ Check the appliance's supply cord at regular intervals and have it replaced by a qualified specialist if
found to be damaged.
Full approval must be obtained from the site engineer or architect prior to beginning the work.
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