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5.2.2
Fitting the depth gauge
1. Unplug the supply cord from the power outlet.
2. Release the side handle clamping band by turning the handle counterclockwise.
3. Slide the depth gauge from the front into the opening provided in the side handle.
4. Set the depth gauge to the desired depth.
5. Secure the depth gauge by turning the grip of the side handle until tight.
5.2.3
Fitting the spray guard
WARNING
Risk of electric shock! If the machine is used for hand-guided drilling in an upwards direction without the
necessary safety precautions, water may enter the machine and present a risk of electric shock.
▶ When carrying out hand-guided drilling in an upwards direction, always use a water collection
system with a wet/dry industrial vacuum cleaner and the spray guard.
1. Disconnect the supply cord plug from the power outlet.
2. Slide the spray guard over the chuck from the front and push it onto the gear housing on the drilling
machine.
5.2.4
Fitting the water collector holder
Drilling is permissible only under the following conditions:
The supplied water collector holder is fitted and adjusted to match the length of the core bit used.
A core bit sealing ring that matches the diameter of the core bit must be fitted in the water collector
holder.
1. Unplug the supply cord from the power outlet.
2. Push the water collector holder into the opening provided at the front of the machine until it engages with
a click.
3. Use the slider to set the correct length range for the core bit used. Set the slider to the 150 position for
core bits with a length of up to 150 mm and set it to 300 for core bits with a length of 300 mm or 600 mm.
5.2.5
Fitting or replacing the sealing ring
WARNING
Danger of electric shock! Use of the wrong sealing ring when drilling overhead may cause water to find its
way into the interior of the diamond core drilling machine.
▶ Always use a sealing ring of the same diameter as the core bit.
1. Disconnect the supply cord plug from the power outlet.
2. Fit the sealing ring into the groove in the water collector and push the sealing ring down until it is heard
to engage.
3. To remove the sealing ring, turn it counterclockwise and pull it up out of the water collector.
5.2.6
Fitting the core bit
WARNING
Risk of injury caused by flying fragments or debris. Use of cracked, broken or badly worn core bits may
result in flying fragments (parts of the workpiece or broken core bit) presenting a risk of injury to the operator
or bystanders, even outside the working area.
▶ Check the core bit for cracks, breakage, heavy wear or other damage each time before use and replace
the core bit if necessary.
Diamond core bits must be replaced when the cutting performance and/or rate of drilling progress
drops significantly. This generally is the case when the segments reach a height of less than 2 mm.
Spraying the chuck with Hilti lubricant spray at regular intervals makes it easier to fit the core bit.
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