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Care of the product
•
Carefully remove stubborn dirt.
•
Carefully clean the air vents, if present, with a dry, soft brush.
•
Use only a slightly damp cloth to clean the housing. Do not use cleaning
agents containing silicone as these can attack the plastic parts.
•
Use a dry, clean cloth to clean the contacts of the product.
Care of the Liion batteries
•
Never use a battery with clogged air vents. Clean the air vents carefully
using a dry, soft brush.
•
Avoid unnecessary exposure of the battery to dust and dirt. Never
expose the battery to high levels of moisture (e.g. by being dipped in
water or left in the rain).
If a battery has been soaked by moisture, treat it as a damaged battery.
Isolate it in a non-flammable container and consult Hilti Service.
•
Keep the battery free of extraneous oil and grease. Do not permit dust
or dirt to accumulate unnecessarily on the battery. Clean the battery
with a dry, soft brush or a clean, dry cloth. Do not use cleaning agents
containing silicone as these can attack the plastic parts.
Do not touch the contacts of the battery and do not remove the factory-
applied grease from the contacts.
•
Use only a slightly damp cloth to clean the housing. Do not use cleaning
agents containing silicone as these can attack the plastic parts.
Maintenance
WARNING
Danger of electric shock! Improper repairs to electrical components may
lead to serious injuries including burns.
▶ Repairs to the electrical section of the tool or appliance may be carried
out only by trained electrical specialists.
•
Check all visible parts and controls for signs of damage at regular
intervals and make sure that they all function correctly.
•
Do not use the product if signs of damage are found or if parts
malfunction. Immediately have the product repaired by Hilti Service.
•
After cleaning and maintenance, install all guards and protective devices
and check that they are in full working order.
To help ensure safe and reliable operation, use only genuine Hilti spare
parts, consumables and accessories. Spare parts, consumables and
accessories approved by Hilti for use with your product can be found
at your Hilti Store or online at: www.hilti.group
7.1 Installing/removing friction ring and O-ring
1. Using suitable pliers, remove the worn/damaged friction ring and the
O-ring.
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