Hilti TE 4-A18 Operating Instructions Manual page 13

7.1.2 Adjusting the depth gauge / side handle 6
1. Release the side handle clamping band by turning
the handle counterclockwise.
2. Pivot the side handle into the desired position.
3. Adjust the depth gauge to the desired drilling depth.
4. Tighten the side handle securely by turning the
grip section. This also clamps the depth gauge in
position.
7.1.3 Removing the insert tool 7
CAUTION
Wear protective gloves when changing insert tools as the
insert tool will get hot during use.
1. Set the forward / reverse switch to the middle posi-
tion or remove the battery from the power tool.
2. Open the chuck by pulling back the chuck release
sleeve.
3. Pull the insert tool out of the chuck.
7.2 Operation
CAUTION
Working on the material may cause it to splinter. Wear
eye protection and protective gloves. Wear breathing
protection if no dust removal system is used. Splin-
tering material presents a risk of injury to the eyes and
body.
CAUTION
The work generates noise. Wear ear protectors. Expo-
sure to noise can cause hearing loss.
7.2.1 Working at low temperatures
NOTE
The hammering mechanism works only when the power
tool has reached a minimum operating temperature.
Bring the drill bit briefly into contact with the base material
while allowing the power tool to run under no load until the
minimum operating temperature is reached. If necessary,
repeat this procedure until the hammering mechanism
begins to operate.
7.2.2 Forward / reverse
NOTE
The forward / reverse switch is used to select the direction
of rotation of the drive spindle. An interlock prevents
switching while the motor is running. The control switch
is locked when the forward / reverse switch is in the
middle position.
For forward rotation, push the forward / reverse switch
on the side of the power tool toward the chuck in the
direction of the arrow.
For reverse rotation, push the forward / reverse switch on
the side of the power tool toward the grip in the direction
of the arrow.
Bring the forward / reverse switch into the desired posi-
tion.
7.2.3 Drilling without hammering 8
1. Set the forward / reverse switch to the "forward"
position before beginning drilling.
2. Turn the function selector switch until it engages in
the "Drilling without hammering" position. Do not
operate the function selector switch while the motor
is running.
3. Bring the side handle into the desired position and
check that it is fitted correctly and secured.
4. Insert the battery.
5. Position the power tool and drill bit at the point
where the hole is to be drilled.
6. Press the control switch slowly (drill at a low speed
until the drill bit centers itself in the hole).
7. Press the control switch fully to continue drilling with
full power.
8. Adjust the pressure applied to the power tool ac-
cording to the material you are working on. This will
ensure the optimum rate of drilling progress.
7.2.4 Hammer drilling 9
1. Set the forward / reverse switch to the "forward"
position before beginning drilling.
2. Turn the function selector switch until it engages in
the "Hammer drilling" position. Do not operate the
function selector switch while the motor is running.
3. Bring the side handle into the desired position and
check that it is fitted correctly and secured.
4. Insert the battery.
5. Position the power tool and drill bit at the point
where the hole is to be drilled.
6. Press the control switch slowly (drill at a low speed
until the drill bit centers itself in the hole).
7. Press the control switch fully to continue drilling with
full power.
8. Adjust the pressure applied to the power tool ac-
cording to the material you are working on. This will
ensure the optimum rate of drilling progress.
9. Reduce drilling speed shortly before breaking
through in order to avoid spalling.
7.2.5 Reading the charge status LED display on
Li‑ion batteries 10
NOTE
The charge status cannot be indicated while the power
tool is in operation. LED 1 blinks when the battery is
fully discharged or when it is too hot (temperature above
80°C). The battery must then be inserted in the charger.
If all 4 LEDs blink, this indicates that the power tool has
been overloaded or has overheated.
The Li-ion battery features a charge status LED display.
The charge status is indicated by the LEDs on the battery
en
9