Hilti DD 160 Mode D'emploi Original page 18

5.7 Fitting the water connection (accessory)
ATTENTION
Hazard due to incorrect use! Incorrect use can result in irreparable damage to the hose.
▶ Regularly check the hoses for damage and make sure that the maximum permissible water supply
pressure of 6 bar is not exceeded.
▶ Make sure that the hose does not come into contact with rotating parts.
▶ Make sure that the hose is not damaged as the carriage advances.
▶ Maximum water temperature: 40 °C.
▶ Check the water supply system to ensure there are no leaks.
To avoid damage to the components, use only fresh water containing no dirt particles.
A flow meter can be inserted as an accessory between the machine and the water supply.
1. Connect the water flow regulator to the diamond core drilling machine.
2. Connect the water supply (hose connection).
5.8 installing the water collection system (accessory)
WARNING
Danger of electric shock! There is a possibility of water flowing over the motor and cover if the vacuum
removal system is faulty.
▶ Cease operations immediately if the vacuum removal system is not working.
CAUTION
Risk of injury! Inadvertent starting of the product.
▶ Unplug the supply cord before making adjustments to the power tool or before changing accessories.
For drilling upward, the diamond core drilling machine must be at a 90° angle to the underside of the
slab. The water collection system sealing disc must match the diamond core bit diameter.
Use of the water collection system allows water to be led away under control, thus preventing the
surrounding area from being heavily soiled.
1. Remove the screw from the drill stand.
2. Install the water collector holder on the drill stand with the screw.
3. Position the water collector, with seal and water collector sealing disc installed, between the two movable
arms of the water collector holder.
4. Press the water collector against the work surface by turning the two screws on the water collector
holder.
5. Connect a wet-type industrial vacuum extractor to the water collector or establish a hose connection
through which the water can drain away.
5.9 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.
Diamond core bits must be replaced when the cutting performance and/or rate of drilling progress
drops significantly. Generally, this is the case when the segments have worn down to a certain height.
1. Lock the carriage on the rail with the carriage lock. Check to ensure that it is securely fastened.
2. Open the chuck by turning it in the direction of the "Open brackets" symbol.
3. From below, push the diamond core bit into the chuck on the diamond core drilling machine, turning it
until the teeth engage.
12 English
Printed: 09.08.2019 | Doc-Nr: PUB / 5069575 / 000 / 07
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