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
8.2 Care of the power tool
The outer casing of the power tool is made from
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. Always keep the grip surfaces of the power tool free from oil and grease. Do not use cleaning agents which contain silicone.
8.3 Care of the NiCd battery
Keep the electrical contacts free from dust, oil and grease. If necessary, use a clean cloth to clean the contact surfaces. The battery must be recharged as soon as the power tool’s performance drops notice- ably or when the deep discharge prevention system becomes active.
NOTE
Please refer to the operating instructions for the charger for further information about charging the battery.
8.4 Care of the Li-ion battery
Avoid entrance of moisture.
Charge the battery fully before using it for the first time.
In order to achieve maximum battery life, stop dis- charging the battery as soon as a significant drop in performance is noticed.
NOTE
If use of the power tool continues, further battery discharge will be stopped automatically before the battery cells suffer damage.
Charge the battery with the Hilti charger approved for use with
NOTE
-A conditioning charge (as is required with NiCd or NiMH batteries) is not necessary.
-Interruption of the charging procedure has no neg- ative effect on battery life.
-Charging can be started at any time with no negative effect battery life. There is no memory effect (as with NiCd or NiMH batteries).
-For best results, batteries should be stored fully charged in a cool dry place. Avoid charging the battery in places subject to high ambient temperatures (e.g. at a window) as this has an adverse effect on battery life and increases the rate of
-If the battery no longer reaches full charge, it may have lost capacity due to aging or overstressing. It is possible to continue working with a battery in this condition but it should be replaced in good time.
8.5 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. Have the power tool repaired by Hilti Service.
8.6Checking the power tool after care and maintenance
After carrying out care and maintenance work on the power tool, check that all protective and safety devices are fitted and that they function faultlessly.
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