The Diamond Core Drilling Machine Is In Working Order - Hilti DD 150-U Manual De Instrucciones Original

Malfunction
The theft protection indicator
blinks.
8.2

The diamond core drilling machine is in working order

Malfunction
The service indicator lights.
The diamond core drilling
machine doesn't achieve full
performance.
The diamond core bit doesn't
rotate.
The rate of drilling progress
decreases.
20 English
Printed: 09.08.2019 | Doc-Nr: PUB / 5069547 / 000 / 06
Possible cause
The diamond core drilling machine
has not been unlocked (machines
with optional theft protection sys-
tem).
Possible cause
The carbon brush wear limit has
almost been reached. The diamond
core drilling machine will continue
to run for a few hours until it shuts
down automatically.
The carbon brushes have been
changed and must be run in.
Supply network fault – undervolt-
age occurred.
The gear selector isn't engaged.
The diamond core bit has become
jammed in the hole.
Maximum drilling depth has been
reached.
The core is stuck in the core bit.
Wrong core bit specification for the
base material.
High steel content (indicated by
clear water containing metal cut-
tings).
The diamond core bit is defective.
Wrong gear selected.
Contact pressure is too low.
The machine has too little power.
The diamond core bit is polished.
Action to be taken
▶ Use the TPS key to unlock the
diamond core drilling machine.
Action to be taken
▶ Have the carbon brushes
replaced at the next opportunity.
▶ Run in the carbon brushes by
letting the machine run under
no load for at least 1 minute
without interruption.
▶ Check whether other power
consumers are disrupting the
power supply from the network
or generator.
▶ Check the length of the exten-
sion cord used.
▶ Operate the gear selector until
it engages.
▶ Guide the diamond core drilling
machine in a straight line.
▶ Use an open-end wrench to
release the core bit: Disconnect
the supply cord plug from
the power outlet. Grip the
diamond core bit with a suitable
open-end wrench close to the
connection end and release the
diamond core bit by rotating it.
▶ If using a drill stand: Turn the
hand wheel and try to release
the diamond core bit by moving
the carriage up and down.
▶ Remove the core and use a core
bit extension.
▶ Remove the core.
▶ Select a more suitable diamond
core bit specification.
▶ Select a more suitable diamond
core bit specification.
▶ Check the diamond core bit
for damage and replace it if
necessary.
▶ Select the right gear.
▶ Increase the contact pressure.
▶ Select the next lower gear.
▶ Sharpen the diamond core bit
by drilling into a sharpening
plate.
434950
*434950*