Care And Maintenance - Hilti SID 121-A Mode D'emploi

7.3 Torque selection switch 6
The torque selection switch can be used to select one
of two torque settings (please refer to the "Technical
data" section).
7.4 Switching on / off
en
The speed of the power tool can be controlled
smoothly (increased from minimum to maximum)
by pressing the control switch gradually.
7.5 Screwdriving
7.5.1 Fitting the bit / bit holder
1. Set the forward / reverse switch to the middle
position or remove the battery from the power
tool.
2. Fit the appropriate insert tool in the chuck.
7.5.2 Screwdriving
WARNING
Ensure fastener and attachment will withstand the
level of torque generated by the tool. Excess-
ive torque may overstress, strip or damage the

8. Care and maintenance

CAUTION
Before beginning cleaning, remove the battery from
the power tool in order to prevent unintentional
starting.
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
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 interior of the power tool. Clean the outside
of the power tool at regular intervals with a slightly
24
Printed: 07.07.2013 | Doc-Nr: PUB / 5070691 / 000 / 00
fastener/attachment and possibly lead to personal
injury.
1. Set the forward / reverse switch to the desired
direction of rotation.
2. Set the torque selector switch to the desired
torque.
7.6 Reading the charge status LED display on
Li ion batteries 7
NOTE
The charge status cannot be indicated while the power
tool is in operation. Indication is given (LED 1 blinks)
only when the battery is fully discharged or when it is
too hot (temperature above 80°C).
The Li-ion battery features a charge status LED dis-
play. The charge status is indicated by the LEDs on the
battery during charging (please refer to the section
"Li-ion battery charge status"). When the battery is at
rest (not in use), its charge status is indicated by the
four LEDs on the battery for a time of three seconds
after pressing one of the battery release buttons.
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.
8.3 Maintenance
WARNING
Repairs to the electrical section of the power tool
may be carried out only by trained electrical spe-
cialists.
Check all external parts of the power tool for damage
at regular intervals and check that all controls operate
faultlessly. Do not operate the power tool if parts
are damaged or when the controls do not function
faultlessly. If necessary, the power tool should be
repaired by Hilti Service.
8.4 Care of the NiCd or NiMH battery
Avoid entrance of moisture. Keep the electrical con-
tacts free from dust, oil and grease. If necessary,
use a clean cloth to clean the contact surfaces. Do
not continue to operate the power tool until the bat-
tery is completely discharged as this may damage