Care And Maintenance; Troubleshooting - Hilti TE 300-AVR Manual De Instrucciones

8 Care and maintenance

CAUTION
Disconnect the mains plug from the power outlet.
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
en
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 clean-
ing 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

9 Troubleshooting

Fault
The power tool doesn't start.
No hammering action.
The power tool doesn't achieve
full power.
The chisel can't be released
from the chuck.
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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.
8.3 Maintenance
WARNING
Repairs to the electrical section of the power tool may
be carried out only by trained electrical specialists.
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 Checking the power tool after care and
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.
Possible cause
Interruption in the electric supply.
The supply cord or plug is defective.
Other electrical fault.
The carbon brushes are worn.
The power tool is too cold.
The extension cord is too long or its
gauge is inadequate.
The control switch is not pressed
fully.
The chuck is not pulled back fully.
maintenance
Remedy
Plug in another electric appliance and
check whether it works.
Have it checked by a trained electrical
specialist and replaced if necessary.
Have it checked by a trained electrical
specialist.
Have it checked by a trained electrical
specialist and replaced if necessary.
Allow the power tool to warm up to
the minimum operating temperature.
See section: 7.2.1 Chiseling 6
Use an extension cord of an
approved length and / or of adequate
gauge.
Press the control switch as far as it
will go.
Pull the chuck back as far as it will go
and remove the insert tool.