Hilti DD 150-U User Manual (English)

Other manuals for Hilti DD 150-U

Manual128 pages

Original Operating Instructions100 pages

Questions and Answers:

I
Ian CookAug 29, 2025
What to do if water escapes at the chuck during Hilti DD 150-U operation?
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  Timothy MoraAug 29, 2025
  If water is escaping at the chuck during operation, it could be due to a few reasons. First, ensure the core bit is securely tightened in the chuck. Remove the core bit, rotate it approximately 90 degrees, and refit it. Second, the core bit connection end or chuck might be dirty, so clean and grease them. Finally, the seal at the chuck or connection end could be defective, so check and replace it if necessary.
M
Michael SuttonAug 27, 2025
How to fix overheating on my Hilti DD 150-U Drill?
- V
  vmoralesAug 27, 2025
  If your Hilti Drill is overheating, it means the motor has overheated and the drill is running in cooling mode. Wait a few minutes for the motor to cool down, or let the drill run under no load to speed up the process. Once the normal temperature is reached, the display indication will disappear, and the drill will activate the restart interlock. At that point, switch the drill off and then on again.
D
Diana AdamsAug 26, 2025
Why does my Hilti Drill show a restart interlock?
- J
  Joseph MacdonaldAug 27, 2025
  A restart interlock can occur for several reasons. The motor may have overheated, in which case you should switch the drill off and then on again. A supply network fault or power interruption could also be the cause; check other power consumers and the extension cord length, then switch the drill off and on again. Water in the motor or exceeding the maximum running time with hole-starting mode activated can also trigger this, so dry the drill or switch it off and on again, respectively. Overloading the drill can also cause this issue; avoid repeated disengagement of the slip clutch.
J
Johnny ReyesAug 25, 2025
What to do if the Hilti DD 150-U multifunction display is not showing anything?
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  Elizabeth ClarkAug 26, 2025
  If the multifunction display is not showing anything, there could be several reasons. First, check that the PRCD is functioning and switched on. Second, verify that there isn't an interruption in the electric supply by testing another electric tool or appliance, and inspect the plug connections, supply cord, power supply line, and main supply fuse. Finally, if there's water in the motor, allow the drill to dry out completely in a warm, dry place.
L
Leslie BellAug 25, 2025
What to do if the diamond core bit cannot be fitted into the chuck of my Hilti DD 150-U Drill?
- T
  Timothy MunozAug 25, 2025
  If you're having trouble fitting the diamond core bit into the chuck of your Hilti Drill, the issue might be that the core bit connection end or chuck is dirty or damaged. Try cleaning and greasing these parts. If that doesn't work, you may need to replace them.