Fit Or Exchange The Sealing Ring - Hilti DD 30-W Manual

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.
Note
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.
Note
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.
Printed: 06.07.2017 | Doc-Nr: PUB / 5283534 / 000 / 05
English 19