Hilti TE 4-22 Instruction Manual page 26

3.4 ATC
The product is equipped with the ATC (Active Torque Control) quick-acting electronic cut-out.
If the accessory tool sticks or stalls, the product will suddenly pivot about its own axis in the opposite direction.
ATC detects this sudden pivoting movement of the product and switches the product off immediately.
For ATC to function correctly, the product must be free to pivot.
After an ATC cut-out, switch the product off and then on again.
3.5 Motor protection system
The tool is equipped with a motor protection system. It monitors current consumption and motor temperature
and prevents the product from overheating.
If the motor is overloaded through application of excessive working pressure, the product's performance
drops noticeably or it might stall completely.
If the power tool stalls or slows significantly due to overloading, release the pressure applied to the product
and then allow it to run under no load for approx. 30 seconds.
3.6 Status indicators of the Li­ion battery
Hilti Nuron Li-ion batteries can indicate state of charge, fault messages and the battery's state of health.
3.6.1 Indicators for state of charge and fault messages
WARNING
Risk of injury by a falling battery!
▶ If the release button is pressed with a battery inserted in the product, subsequently check that the battery
is correctly re-engaged and secure.
Short-press the release button of the battery to get whichever of the following status indications is applicable
at the time.
State of charge and, if applicable, faults are indicated constantly as long as the connected product is
switched on.
Status
Four (4) LEDs show constantly green
Three (3) LEDs show constantly green
Two (2) LEDs show constantly green
One (1) LED shows constantly green
One (1) LED slow-flashes green
One (1) LED quick-flashes green
One (1) LED quick-flashes yellow
One (1) LED shows yellow
One (1) LED quick-flashes red
20 English
Meaning
State of charge: 100 % to 71 %
State of charge: 70 % to 51 %
State of charge: 50 % to 26 %
State of charge: 25 % to 10 %
State of charge: < 10 %
The Li-ion battery is completely discharged.
Recharge the battery.
If the LED again starts quick-flashing after the bat-
tery has been charged, consult Hilti Service.
The Li-ion battery or the product in which it is in-
serted is overloaded, too hot or too cold, or experi-
encing some other fault.
Bring the product and the battery to the recom-
mended working temperature and do not overload
the product when it is in use.
If the message persists, consult Hilti Service.
The Li-ion battery and the product in which it is
inserted are not compatible. Consult Hilti Service.
The Li-ion battery is locked and cannot be used.
Consult Hilti Service.
2265062
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