Troubleshooting - Hilti DD AF-CA Operating Instructions Manual

Maintenance
WARNING
Danger of electric shock! Improper repairs to electrical components may lead to serious injuries including
burns.
▶ Repairs to the electrical section of the tool or appliance may be carried out only by trained electrical
specialists.
• Check all visible parts and controls for signs of damage at regular intervals and make sure that they all
function correctly.
• Do not operate the product if signs of damage are found or if parts malfunction. Have it repaired
immediately by Hilti Service.
• After cleaning and maintenance, fit all guards or protective devices and check that they function correctly.
To help ensure safe and reliable operation, use only genuine Hilti spare parts and consumables. Spare
parts, consumables and accessories approved by Hilti for use with the product can be found at your
local Hilti Store or online at: www.hilti.group.
7.2 Transport and storage
Transport
▶ Do not transport this product with an accessory tool installed.
▶ Make sure that the equipment is held securely throughout all transport operations.
▶ After transporting, always check all visible parts and controls for signs of damage and make sure that
they all function correctly.
Storage
▶ Always store this product with the electric supply cable unplugged from the electricity supply.
▶ Store this product in a dry place, where it cannot be accessed by children or unauthorized persons.
▶ After a long period of storage, always check all visible parts and controls for signs of damage and make
sure that they all function correctly.
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-AF CA is not in working order
Malfunction
The service indicator blinks.
The service indicator lights.
Printed: 22.05.2019 | Doc-Nr: PUB / 5236039 / 000 / 03
Possible cause
The emergency stop button has
been pressed.
Overheating.
Communication error.
Critical error or fault.
Action to be taken
▶ Release the emergency stop
button and press the off-switch
on the diamond core drilling
machine.
▶ Allow the machine to cool down.
▶ Check the connecting cable.
Unplug the diamond core drilling
machine's supply cord from the
power outlet and then plug
it back in again. Switch the
diamond core drilling machine
off and then on again.
▶ Unplug the diamond core drilling
machine's supply cord from the
power outlet and then plug it
back in again.
▶ Contact Hilti Service if the
service indicator LED continues
to light.
English 13