Hilti DD 200/DD-HD 30 Bedienungsanleitung Seite 45

5.5 Securing the drill stand with an anchor
Hilti metal expansion anchors M16 (5/8") are usually suitable for fastening diamond core drilling
equipment to uncracked concrete. Under certain conditions, however, it may be necessary to use an
alternative fastening method.
Contact Hilti Technical Service if you have questions about secure fastening.
WARNING
Risk of injury due to use of wrong anchors! The machine can break loose and cause damage.
▶ Use anchors suitable for the material on which you are working and observe the anchor manufacturer's
instructions.
1. Fit the anchor that is suitable for the corresponding base material. Select the distance according to the
base plate used.
▶ Ideal distance from the hole center for DD-HD 30: 330 mm (13 in)
▶ Ideal distance from the hole center for DD-ST 200: 380 mm (15 in)
2. Screw the clamping spindle (accessory) into the anchor.
3. Place the drill stand over the spindle and align it. When using the DD-HD 30 drill stand, use the hole
center indicator to help you align the drill stand. When a spacer is used, the drill stand cannot be aligned
using the hole center indicator.
4. Screw the clamping nut onto the spindle but do not tighten it.
5. Level the base plate by turning the leveling screws. Use the leveling indicators for this purpose. Take
care to ensure that the leveling screws make firm contact with the underlying surface.
6. Tighten the leveling screws evenly until the drill stand is securely fastened.
7. Make sure that the drill stand is fastened securely.
5.6 Fastening the drill stand with the vacuum base plate (accessory)
DANGER
Risk of injury if the diamond core drilling machine falls !
▶ Fastening the drill stand to the ceiling only by means of the vacuum securing method is not permissible.
A heavy structural support or a threaded spindle, for example, can serve as an additional means of
fastening.
WARNING
Risk of injury Hazard presented by a falling diamond core drilling machine.
▶ When drilling horizontally, the drill stand must be secured additionally by a chain.
WARNING
Risk of injury if pressure is not checked !
▶ Before and during drilling, check that the pressure gage pointer remains in the green zone.
Make sure that the anchor base plate lies flat against the vacuum base plate and that the two plates
are securely connected when using the drill stand with an anchor base plate. Screw the anchor base
plate securely onto the vacuum base plate. Make sure that the core bit selected for use will not
damage the vacuum base plate.
Before positioning the drill stand, ensure that there is sufficient space available for assembly and
operation.
Use the vacuum fastening method only together with core bits of up to 300 mm (12") in diameter and
when no spacer is fitted.
A vacuum release valve, which can be used to increase the vacuum again, is fitted to the hand grip on
the vacuum base plate.
1. Turn all leveling screws back until they project approximately 5 mm (1/5 in) beneath the vacuum base
plate.
2. Connect the vacuum connector on the vacuum base plate to the vacuum pump.
3. Place the drill stand on the vacuum base plate.
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English 37