Hilti DD 250 Manual De Usuario página 25

6. Check to ensure that the spacer is securely fastened.
5.10 DD­ST 200: Fitting the spacer (accessory)
WARNING
Risk of injury. The fastening may become overloaded.
▶ When one or more spacers are used, the contact pressure must be reduced in order to avoid
overloading the fastening.
Note
When core bits with a diameter of 400 mm (15 3/4 in) or greater are used, the distance between the
drill stand and the drilling axis must be increased by fitting a spacer.
1. Detach the diamond core drilling machine from the drill stand.
2. Separate the carriage from the diamond core drilling machine by loosening the four screws on the
carriage.
3. Screw the spacer tightly to the carriage with the four screws that are additionally supplied.
4. Re-screw the diamond core drilling machine tightly to the spacer with the four screws.
5.11 DD-HD 30: Attaching the diamond core drilling machine to the drill stand
CAUTION
Risk of injury Hazard presented by inadvertent starting of the diamond core drilling machine.
▶ The diamond core drilling machine should not be connected to the power supply during set-up.
1. Lock the carriage on the rail with the carriage lock.
2. Pull out the eccentric pin for locking the diamond core drilling machine on the carriage.
3. Fit the diamond core drilling machine onto the carriage or the spacer.
4. Push the eccentric pin into the carriage or the spacer as far as it will go.
5. Tighten the eccentric pin.
6. Fasten the supply cord in the cord guide to the carriage cover.
7. Check to ensure that the diamond core drilling machine is securely fastened to the drill stand.
5.12 DD­ST 200: Attaching the diamond core drilling machine to the drill stand
DANGER
Risk of injury Impact as a result of a fast-moving lever or hand wheel when the carriage is in motion.
▶ The lever and the hand wheel must not be fitted on the drill stand when the diamond core drilling
machine is being fitted.
CAUTION
Risk of injury Hazard presented by inadvertent starting of the diamond core drilling machine.
▶ The diamond core drilling machine should not be connected to the power supply during set-up.
Note
The drive unit and the carriage form a unit. The diamond core drilling machine can thus be removed
from the drill stand together with the carriage.
Adjust the play between the rail and carriage before using the tool for the first time.
1. Remove the end stop screw from the end of the rail.
2. Ensure that the carriage lock is open.
3. Mount the diamond core drilling machine on the drill stand by sliding the opening in the carriage over the
end of the rail.
4. Lock the carriage on the rail by turning the carriage lock through 90°.
5. Slightly turn the hand wheel to ensure that the diamond core drilling machine is securely fastened.
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