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5.3.5
Fitting the hand wheel
The hand wheel can be fitted on either side of the drill stand.
1. Fit the hand wheel onto the axle.
2. Flip the ring on the retaining pin into the open position and insert the pin in the hole.
3. Close the ring on the retaining pin.
5.3.6
Fit or exchange the sealing ring.
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.
5.3.7
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.
1. Unplug the supply cord from the power outlet.
2. Open the chuck by pulling the chuck locking lever upwards as far as it will go.
Check that the core bit connection end and the chuck are clean and undamaged.
3. Tip the water collector about its mounting axis as far as it will go.
4. Guide the cutting edge of the core bit into the sealing ring in the water collector from above.
5. Align the connection end of the core bit with the corresponding openings and insert it into the chuck.
6. Turn the core bit as far as it will go while applying light pressure.
7. Secure the core bit by closing the chuck locking lever.
5.3.8
Connecting the vacuum removal system
1. Make sure that the suction hose from the all-purpose vacuum cleaner is securely connected to the core
drilling machine's water collection hose. Use a hose adapter for this purpose.
2. Connect the all-purpose vacuum cleaner suction hose to the vacuum cleaner.
3. When drilling overhead, use the retaining clip on the side handle to secure the water collection hose.
5.4
Aligning the drilling system with the hole center
5.4.1
Positioning the drilling system with the vacuum base plate
1. Check to ensure that the drilling system holds securely (the pointer on the pressure gauge must be in the
green area).
2. To position the drilling system exactly at the hole center, press the vacuum release valve and then adjust
of the position of the drill stand.
3. Once the drilling system has been positioned correctly, release the vacuum release valve and press the
drilling system against the working surface.
4. Level the vacuum base plate by turning the 4 leveling screws.
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