Fitting The Water Connection (Accessory) - Hilti DD 250 Manual De Usuario

6. Refit the end stop screw to the end of the rail. The safety-relevant end-stop function becomes inoperative
if this component is not fitted.

5.13 Fitting the water connection (accessory)

CAUTION
Risk of personal injury and material damage The hose may become damaged if it is used incorrectly.
▶ 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.
Note
To avoid damage to the components, use only fresh water containing no dirt particles.
A flow meter (accessory) may be fitted between the tool and the water supply hose.
1. Connect the water flow regulator to the diamond core drilling machine.
2. Connect the water supply (hose connection).
5.14 Fitting the water collection system (accessory)
WARNING
Risk of personal injury and material damage The diamond core drilling machine may become
damaged and the risk of electric shock is increased.
▶ Water must not be allowed to run over the motor and cover.
▶ Use of a wet-type industrial vacuum cleaner is a mandatory requirement for drilling in an upwards
direction.
Note
The diamond core drilling machine must be at a 90° angle to the ceiling. The water collection system
sealing disc must match the diamond core bit diameter.
Note
Use of the water collection system allows water to be led away under control, thus preventing the
surrounding area from being heavily soiled. The best results are achieved with a wet-type industrial
vacuum cleaner.
Note
When using the drill stand DD­ST 200: Before fitting the water collector holder, screw the spacer for
the water collector holder tightly to the drill stand.
1. Loosen the screw on the front of the drill stand at the bottom end of the rail.
2. Slide the water collector holder into position under the screw from below.
3. Tighten the screw securely.
4. Position the water collector, with seal and water collector sealing disc fitted, between the two movable
arms of the holder.
5. Secure the water collector to the holder with the two screws.
6. Connect a wet-type industrial vacuum cleaner to the water collector or establish a hose connection
through which the water can drain away.
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