Hilti DD 150-U Mode D'emploi Original page 27

2. Screw the locking ring off the drilling bush and position the seal.
To avoid damaging the seal, the seal must be laid on with the notches on the positioning pins.
Small core bits must be installed with a corresponding drilling bush adapter. To avoid jamming
during removal, the stabilization elements of the drilling bush adapter should not cover the water
extraction socket.
3. Install the locking ring and insert the water collector into the holder.
4. Adjust the eccentric shaft to the position
5. Install the water collection system on the interface plate of the diamond core drilling machine.
6. Set the eccentric shaft to the position
▶ The water collection system is fixed in place on the diamond core drilling machine.
7. Install the core bit → page 19.
8. Connect a wet-type industrial vacuum extractor to the water collector or establish a hose connection
through which the water can drain away.
7 Operation
7.1 Fitting a diamond core bit in a BI+ chuck
CAUTION
Risk of injury when changing the tool! The tool becomes hot as a result of use. It may have sharp edges.
▶ Always wear protective gloves when changing the tool.
Replace diamond core bits as soon as their cutting performance and/or rate of drilling progress drops
significantly. This generally is the case when the diamond segments have worn down to a certain
height (< 2 mm).
1. In the stand mode, lock the carriage with the carriage lock. Check to ensure that it is securely fastened.
2. Open the chuck by turning it in the direction of the symbol
3. From below, push the diamond core bit into the chuck on the diamond core drilling machine, turning it
until the teeth engage.
4. Close the chuck by turning it in the direction of the symbol
5. Check that the diamond core bit is seated securely in the chuck.
7.2 Fitting the diamond core bit with an alternative type of chuck
1. Lock the drive spindle with a suitable open-end wrench.
2. Tighten the core bit with a suitable open-end wrench.
7.3 Removing a diamond core bit from a BI+ chuck
1. Lock the carriage with the carriage lock in the stand mode. Check to ensure that it is securely fastened.
2. Open the chuck by turning it in the direction of the symbol
3. Pull the sleeve on the chuck in the direction of the arrow towards the machine. This releases the core bit.
4. Remove the core bit.
7.4 Removing the diamond core bit with an alternative type of chuck
1. Lock the drive spindle with a suitable open-end wrench.
2. Remove the core bit with a suitable open-end wrench.
7.5 Selecting the speed
Press the switch only when the tool is stationary.
1. Set the selector switch to suit the diameter of the core bit used.
*2204401*
.
.
14
16
2204401
.
.
15
.
English 19