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7.3 Transport and storage
CAUTION
Risk of personal injury and material damage Frost-damaged components may cause the tool to
stop working and present a risk of injury for the user.
▶ When temperatures drop below zero, check to ensure that no water remains in the power tool.
WARNING
Risk of injury Individual parts may become detached and fall off.
▶ Do not lift the diamond core drilling machine and/or the drill stand by crane.
Note
Transport the diamond core drilling machine, the drill stand and the core bit as separate units.
Use the wheel assembly (accessory) as an aid when transporting the equipment.
▶ Open the water flow regulator before putting the diamond core drilling machine into storage.
8 Troubleshooting
▶ If the trouble you are experiencing is not listed in this table or you are unable to remedy the problem by
yourself, please contact Hilti Service.
8.1 DD 200: The diamond core drilling machine is not in working order
Malfunction
The service indicator shows
nothing.
The service indicator lights.
The service indicator blinks.
Possible cause
The PRCD isn't switched on.
Interruption in the electric supply.
Water in the motor.
The carbon brushes are worn out.
The motor has overheated.
Action to be taken
▶ Check that the PRCD is
functioning and switch it on.
▶ Plug in another electric tool or
appliance and check whether it
works.
▶ Check the plug connections,
supply cord, power supply line
and main supply fuse.
▶ Allow the diamond core drilling
machine to dry out completely
in a warm, dry place.
▶ Replace the carbon brushes.
→ page 22
▶ Wait a few minutes until the
motor has cooled down or
allow the diamond core drilling
machine to run under no load in
order to speed up the cooling
process. Switch the diamond
core drilling machine off and
then on again.
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