Obligation signs
Wear eye
Wear a hard
en
protection
Wear
breathing
protection
Symbols
Read the
Return waste
operating
material for
instructions
recycling.
before use
Rated speed
Revolutions
under no load
per minute
2. Description
2.1 Use of the product as directed
The SID 121-A, SIW 121-A, SID 144-A and SIW 144-A are hand-held cordless tangential impact screwdrivers.
They are suitable for driving and removing screws in wood, metal, masonry and concrete.
Working on materials hazardous to the health (e.g. asbestos) is not permissible.
Do not use the battery as a power source for other unspecified appliances.
Modification of the power tool or tampering with its parts is not permissible.
To avoid the risk of injury, use only genuine Hilti accessories and insert tools.
The power tool should not be used for applications that require a precise torque. For applications which require
a precise torque or where only a special limited torque is permitted, there is a risk of over-tightening and
damage to the screw or workpiece. For these types of application, use a tool with a predefined torque setting
to prevent over-tightening.
Observe the information printed in the operating instructions concerning operation, care and maintenance.
The power tool is designed for professional use and may be operated, serviced and maintained only by trained,
authorized personnel. This personnel must be informed of any special hazards that may be encountered. The
power tool and its ancillary equipment may present hazards when used incorrectly by untrained personnel or
when used not as directed.
The working environment may be as follows: construction site, workshop, renovation, conversion or new
construction.
2
Printed: 07.07.2013 | Doc-Nr: PUB / 5070692 / 000 / 00
Wear ear
hat
protection
Volts
Location of identification data on the power tool
The type designation can be found on the type iden-
tification plate and the serial number on the side of
the motor housing. Make a note of this data in your
operating instructions and always refer to it when
Wear
making an enquiry to your Hilti representative or
protective
service department.
gloves
Type:
Serial no.:
Direct current