Hilti TE 2 Original Operating Instructions page 21

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.
• At regular intervals, check all visible parts and the controls for signs of damage and make sure that they
all function correctly.
• Do not operate the power tool if signs of damage are found or if parts malfunction. Have damage repaired
immediately by Hilti Service.
• After cleaning and maintenance, refit all guards or protective devices and check that they function
correctly.
6.1 Replacing the dust shield
▶ Replace the dust shield.
7 Transport and storage
• Do not transport electric tools with accessory tools fitted.
• Always unplug the supply cord before storing an electric tool or appliance.
• Store tools and appliances in a dry place where they cannot be accessed by children or unauthorized
persons.
• Check electric tools or appliances for damage after long periods of transport or 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 Troubleshooting
Trouble or fault
The power tool doesn't start.
No hammering action.
The rotary hammer doesn't
achieve full power.
The drill bit cannot be re-
leased.
Printed: 04.10.2017 | Doc-Nr: PUB / 5170536 / 000 / 02
9
Possible cause
Interruption in the electric supply.
The power tool is too cold.
The function selector switch is set
to "Rotary drilling only"
The control switch is not fully
pressed.
TE 2-S
Function selector switch set to
"Light hammering action"
The gauge (cross section) of the
extension cord conductors is inad-
equate.
The chuck is not pulled back fully.
Action to be taken
▶ Plug in another electric tool or
appliance and check whether it
works.
▶ Bring the tip of the drill bit
into contact with the working
surface, switch the rotary
hammer on and allow it to
run. If necessary, repeat the
procedure until the hammering
mechanism begins to operate.
▶ Set the function selector switch
. to the "Hammer drilling" position
.
▶ Press the control switch as far
as it will go.
▶ Set the function selector switch
to the "Hammer drilling" position
.
.
▶ Use an extension cord with
an adequate conductor cross
section.
▶ Pull the chuck back as far as it
will go and remove the tool.
English 15