Care And Maintenance - Hilti TE 50 Operating Instructions Manual

the power tool to run under no load until it reaches
the minimum operating temperature. If necessary, repeat
this procedure until the hammering mechanism begins to
operate.
1. 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.
2. Bring the side handle into the desired position and
check that it is fitted correctly and secured.
3. Plug the supply cord into the power outlet.
4. Position the power tool and drill bit at the point
where the hole is to be drilled.
5. Press the control switch slowly (drill at a low speed
until the drill bit centers itself in the hole).
6. Press the control switch fully to continue drilling with
full power.
7. Do not apply excessive pressure. This will not in-
crease the power tool's hammering performance.
Lower pressure extends the life of the insert tool.
8. Reduce drilling speed shortly before breaking
through in order to avoid damage to the surface at
the rear side.

8 Care and maintenance

CAUTION
Disconnect the mains plug from the power outlet.
8.1 Care of insert tools
Clean off dirt and dust deposits adhering to the insert
tools and protect them from corrosion by wiping the
insert tools from time to time with an oil-soaked rag.
8.2 Care of the power tool
CAUTION
Keep the power tool, especially its grip surfaces,
clean and free from oil and grease. Do not use clean-
ing agents which contain silicone.
8.3 Service indicator
NOTE
The power tool is equipped with a service indicator.
7.2.4 Chiseling
NOTE
The chisel can be adjusted to 12 different positions
(in 30° increments). This ensures that flat chisels and
shaped chisels can always be set to the optimum working
position.
7.2.4.1 Adjusting the chisel (C) 7
CAUTION
Do not operate the power tool when the selector switch
is set to "Chisel adjustment".
1. Turn the function selector switch until it engages in
the "Chisel adjustment" position. Do not operate the
function selector switch while the motor is running.
2. Bring the side handle into the desired position and
check that it is fitted correctly and secured.
3. Rotate the chisel to the desired position.
7.2.4.2 Locking the chisel (D) 7
Turn the function selector switch until it engages in the
"Chiseling" position. Do not operate the function selector
switch while the motor is running.
7.2.4.3 Chiseling(D) 7
1. Plug the supply cord into the power outlet.
2. Position the tip of the chisel at the point where
chiseling is to begin.
3. Press the control switch fully.
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
interior 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
electrical safety of the power tool.
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