Care And Maintenance; Troubleshooting - Hilti SR 16 Bedienungsanleitung

8. Care and maintenance

Unplug the supply cord from the mains socket.
8.1 Care of insert tools
Clean off dirt and dust deposits and protect your insert
tools from corrosion by wiping them with an oil-soaked
rag from time to time.
8.2 Changing the chuck
The quick-release chuck must be tightened to the spec-
ified torque of 68 Nm.
The key-type chuck must be tightened to the specified
torque of 37–47 Nm and secured with the retaining
screw (left-hand thread), inserted between the jaws of
the chuck. The retaining screw must be tightened to a
torque of 7–11 mm.
8.3 Care of the electric tool
The outer casing of the tool is made from impact-resis-
tant plastic. Sections of the grip are made from a syn-
thetic rubber material.
Never operate the tool when the ventilation slots are
blocked. Clean the ventilation slots carefully with a dry
brush. Do not permit foreign objects to enter the inte-
rior of the tool. Clean the outside of the 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 tool. Always keep the grip surfaces of the
tool free from oil and grease. Do not use cleaning agents
containing silicone.

9. Troubleshooting

Fault
The tool doesn't start.
The tool does not
achieve full power.
The drill bit makes no
progress.
Printed: 07.07.2013 | Doc-Nr: PUB / 5070701 / 000 / 00
Possible cause
Fault in mains supply
Supply cord or plug defective
Speed control switch defective
The extension cord is too long or has
inadequate cross section
Speed control switch not fully
pressed
The forward/reverse button is set to
reverse rotation.
8.4 Maintenance
Check all external parts of the tool for damage at reg-
ular intervals and check that all controls operate fault-
lessly. Do not operate the tool if parts are damaged or
when the controls do not function faultlessly. If nec-
essary, your electric tool should be repaired at a Hilti
repair center.
Repairs to the electrical section of the tool may be car-
ried out only by trained electrical specialists.
8.5 Checks after care and maintenance
After carrying out care and maintenance on the tool,
check that all protective equipment has been refitted
and that all parts function faultlessly (side handle, chuck
tightened to specified torque).
Remedy
Plug in another electric appliance and
check whether it works.
Have the cord checked and, if neces-
sary, replaced by an electrical specialist.
Have it checked and, if necessary,
replaced by an electrical specialist.
Use a shorter extension cord or a cord
with adequate cross section.
Press the speed control switch as far
as it will go.
Set the button to forward rotation.
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