7
en
-CAUTION-
■
The tool and the drilling operation emit
noise.
■
Excessive noise may damage the hear-
ing.
■
Wear ear protection.
-CAUTION-
■
The material may splinter during drilling.
■
Splintering material may injure parts
of the body and the eyes.
■
Wear eye protection, protective gloves
and, if a dust removal system is not
used, also wear breathing protection.
7.4 Hammer drilling with full hammering action
1. Plug in the supply cord.
2. Turn the switch to the "(
)" position.
3. Position the tip of the drill bit where the hole is to be
drilled.
4. Press the control switch slowly (drill at a slow speed
until the drill bit has become centred in the hole).
5. Press the control switch as far as it will go when you
wish to continue at full speed.
6. Do not apply excessive pressure as this will not increase
hammering power. Lower pressure increases the life
of the insert tool.
7. When drilling a through hole, avoid spalling by reduc-
ing speed shortly before breaking through.
7.5 Hammer drilling with reduced hammering power
1. Plug in the supply cord.
2. Turn the switch to the (
) position.
3. Position the tip of the drill bit where the hole is to be
drilled.
4. Press the control switch slowly (drill at a slow speed
until the drill bit has become centred in the hole).
5. Press the control switch as far as it will go when you
wish to continue at full speed.
6. When working on critical materials, spalling can be
reduced by using TE-C drill bits in new condition in
conjunction with reduced hammering action.
7.6 Drilling without hammering action
1. Plug in the supply cord.
2. Turn the switch to the "(
)" position. When the
switch is in this position, only the rotary action is trans-
ferred to the insert tool.
3. Press the control switch slowly (drill at a slow speed
until the drill bit has become centred in the hole).
4. Press the control switch as far as it will go when you
wish to continue at full speed.
7.7 Forwards / reverse rotation
1. Turn the lever to the (L
) or position (R
).
8. Care and maintenance
Unplug the supply cord.
8.1 Care of insert tools
Remove any dirt adhering to the surface of the insert
tools and protect them from corrosion by rubbing them
with an oily cloth from time to time.
8.2 Care of the tool
CAUTION
Keep the power tool, especially its grip surfaces, clean
and free from oil and grease. Do not use cleaning agents
which contain silicone.
The outer casing of the power tool is made from impact-
resistant plastic. Sections of the grip are made from a
synthetic rubber material.
Never operate the power tool when the ventilation slots
are blocked. Clean the ventilation slots carefully using a
dry brush. Do not permit foreign objects to enter the inte-
rior of the power tool. Clean the outside of the power tool
at regular intervals with a slightly damp cloth. Do not use
a spray, steam pressure cleaning equipment or running
water for cleaning. This may negatively affect the elec-
trical safety of the power tool.
8.3 Maintenance
Check all external parts of the tool for damage at regular
intervals and check that all controls operate faultlessly.
Do not operate the tool when parts are damaged or when
the controls do not operate faultlessly. If necessary, have
the tool repaired at a Hilti service centre.
Electrical parts of the tool may be repaired only by trained
electrical specialists.
8.4 Checking the tool after care and maintenance
After all care and maintenance work, the tool must be
checked to ensure that all safety equipment is fitted and
that it operates faultlessly.
Printed: 07.07.2013 | Doc-Nr: PUB / 5071103 / 000 / 00
